Valve for cooling system

Abstract

A valve for a cooling system is disclosed. The valve (1) comprises a first port (3), a second port (4) and a fluid path extending between the ports (3, 4); a plunger (5) disposed in the fluid path, the plunger (5) being selectively and linearly movable between a closed position closing the fluid path and an open position opening the fluid path between the first port (3) and the second port (4); a valve seat assembly (6) disposed in a fluid path between the first port (3) and the second port (4), the valve seat assembly (6) comprising: a gasket (12), a frame (13) having a seat (15), and adapters (14a-14e); wherein the gasket (12) is different from the adapter (14a-14e) and from the support (15) and is interposed between the adapter (14a-14e) and the support (15).

Description

Technical Field

[0001] The present disclosure relates to a valve for a cooling system. The cooling system includes a valve for controlling the flow of a medium through a pipe section of a pipe system. The medium is distributed via the pipe system to a plurality of consumers and / or heat exchangers. The cooling system may include a common source, and the pipe system may be connected to the common source. Background Art

[0002] In commercial and / or industrial and / or residential buildings, several applications utilizing piping systems are known. The piping systems distribute a medium to various consumer devices throughout the building. The medium typically originates from a common source.

[0003] The piping system may be a closed loop, or include a closed loop, comprising one or more supply pipes connecting a common source to each consumer, and one or more return pipes connecting each consumer back to the common source.

[0004] The consumer preferably comprises a heat exchanger. The consumer is ideally a heat exchanger. More specifically, the consumer may comprise a cold exchange system. The consumer may even be a cold exchange system.

[0005] The piping system may also be an open loop, or include an open loop. An open loop includes one or more supply pipes connecting a common source to each consumable device. In contrast to a closed loop, there is no return pipe connecting each consumable device back to the common source.

[0006] The piping system can also be a combination of closed and open loops.

[0007] These systems can include valves, such as control valves, with adjustable orifice systems for controlling the flow of media to the corresponding consumer. The position of the adjustable orifices of the adjustable orifice system determines the amount of media passing through the consumer per unit time. In cold exchange applications, this means that the position of the orifices determines the amount of cooling delivered from the heat exchanger to adjacent structures. Adjacent structures preferably include adjacent rooms in a building. Adjacent spaces are ideally adjacent rooms in a building. Adjacent structures can also include adjacent appliances or spaces therein. Adjacent structures can also be adjacent appliances or spaces therein.

[0008] Among other factors, the flow rate of the medium through the consumable device depends on the adjustable orifice. The adjustable orifice of a valve such as an expansion valve comprises a valve seat and a valve element such as a plunger. Known adjustable orifices include ball-type adjustable orifices and orifices of shut-off valves.

[0009] When the adjustable orifice of the valve is in an open position, the adjustable orifice is used to enable flow through the valve. When the adjustable orifice of the valve is in a closed position, the adjustable orifice is used to block flow through the valve. In some applications, when the adjustable orifice is in the closed position, it is desired that the adjustable orifice be tightly closed. In other words, in the closed position of the adjustable orifice, the flow through the valve will be zero.

[0010] The adjustable orifice of the cooling system valve is a mechanical component and is therefore susceptible to mechanical wear. The components of the adjustable orifice, such as the valve element and valve seat, are expected to remain leak-free even after numerous valve cycles. They are also expected to remain leak-free even after years of use.

[0011] It is also contemplated that the adjustable orifice can close and / or open the fluid path throughout the applicable temperature range. In the cooling system, the temperature range may begin at a temperature such as 200 Kelvin, 210 Kelvin, 213 Kelvin, or 220 Kelvin. The temperature range may also begin at any temperature in between. The temperature range may end at a temperature such as 410 Kelvin, 430 Kelvin, 433 Kelvin, or 440 Kelvin. The temperature range may also end at any temperature in between. More specifically, the temperature range may begin at 213 Kelvin and end at 433 Kelvin. The temperature range may also begin at 210 Kelvin and end at 440 Kelvin. The temperature range may also begin at 220 Kelvin and end at 430 Kelvin.

[0012] Patent US6435207B1 was published on August 20, 2022. US6435207B1 relates to a flow adjustment accessory. Patent US6435207B1 claims a priority date of December 21, 1996.

[0013] US Pat. No. 6,435,207 B1 discloses a control system for a pipeline system. US Pat. No. 6,435,207 B1 describes a flow regulating control valve for setting and measuring a volumetric flow rate in a pipeline. The flow regulating control valve includes a shutoff member disposed in a flow chamber for setting a desired flow condition. A sensor is disposed in or near the flow chamber for sensing a value representative of the flow rate through the flow chamber.

[0014] The flow-regulating control valve also includes an evaluation unit. This unit determines the flow rate based on the signal recorded by the sensor and characteristic values ​​of the control valve. These characteristic values ​​are stored in an electronic data storage device at the sensor and are valve-specific. The flow rate through the cross-section of the pipe system is manually adjusted using the shut-off member of the flow-regulating control valve. The flow rate is adjusted until the evaluation unit indicates the desired flow rate. One or more seals prevent the medium from escaping through the orifice of the valve of US Pat. No. 6,435,207 B1.

[0015] Patent application WO 98 / 25086 A1 was filed on December 4, 1997. Said application was published on June 11, 1998. The priority date claimed is December 4, 1996. WO 98 / 25086 A1 discloses a modulating fluid control apparatus for a fluid-based heating and cooling system of a measured environment.

[0016] The control device includes a main body, a supply port and a return port, and a valve located between these ports. The valve's plug is connected to an actuator. The actuator and plug respond to inputs from a sensor and a controller. The flow rate of the medium through the valve is thereby limited, with the limit depending on the conditions in the measured environment. The control device is provided with a valve controller and an actuator to position the valve and thereby adjust the flow rate through the valve. A flow sensor is associated with the valve and records the flow rate of the medium at a location in the system. The flow sensor provides a signal indicating the flow rate to the valve controller. The flow sensor and the valve controller maintain the desired flow rate through the system as recorded by the sensor. The system thus promotes the desired environmental conditions in the space.

[0017] SIEMENS SCHWEIZ AG filed European patent application EP3839308A1 on December 20, 2019. The application was published on June 23, 2021. EP3839308A1 relates to an expansion valve. The valve includes an inlet port, an outlet port, and an adjustable orifice positioned in the fluid path between the inlet and outlet ports. The adjustable orifice system corresponds to a shut-off valve and includes an adjustable orifice and an armature. Current passing through a solenoid causes movement of the armature and the adjustable orifice. The solenoid is directly immersed in the refrigerant.

[0018] Patent US5419365A, granted on May 30, 1995, relates to a pressure regulator for water jets. US5419365A discloses a valve with a replaceable cartridge. An adapter fitting secures the replaceable cartridge to the valve body. The valve plunger engages the valve element of the replaceable cartridge. A seal is disposed between the valve member and the seat member of the valve of US5419365A. The seal prevents leakage.

[0019] Patent US5730423A was granted on March 24, 1998. A corresponding application, Ser. No. 08 / 731,517, was filed on October 16, 1996. US5730423A relates to an all-metal diaphragm valve. The valve includes a valve chamber with an annular bead. In the closed position, the bead abuts the valve's diaphragm, which is positioned between the bead and an actuator.

[0020] The present disclosure relates to a valve for a cooling system, wherein the adjustable orifice of the valve is improved.The valve may, for example, be an expansion valve in a cooling system. Summary of the Invention

[0021] The adjustable orifice of the valve disclosed herein includes a valve member in the form of a plunger. The adjustable orifice also includes a valve seat assembly having a valve seat in the form of a gasket. The plunger cooperates with the gasket to close and open the valve. More specifically, in the closed position, the plunger abuts the gasket. In the open position, the plunger is separated from the gasket.

[0022] The tip end of the plunger has the shape of a receiver, with its head portion pointing towards the gasket. An edge is provided at the end of the head. In the closed position, the edge abuts the gasket, thereby closing the valve.

[0023] The plunger and the washer can be made of materials that ensure long life. For example, the plunger can be made of a metal such as (stainless) steel, while the washer is made of a polymer material. The material of the washer is generally more ductile than the material of (the rounded edge of) the plunger.

[0024] For a more universal solution, adapters such as flow control adapters are used. The adapters are part of the valve seat assembly. This means that different adapters can be used with an otherwise identical valve.

[0025] Although the valve member and / or plunger are moving parts, the gasket is not configured to move during operation of the valve.

[0026] Like a gasket, an adapter provides apertures and / or holes to enable the flow of a fluid between the ports of the valve. The fluid can be a refrigerant fluid. It can be liquid and / or gaseous. The fluid can also be superheated.

[0027] The washer is mounted on the support surface of the support assembly. That is, the surface of the washer abuts the support surface. A rim, such as a circular rim, protrudes from the support surface. Aside from the rim protruding from the support surface, the support surface is smooth, and the support surface and rim are integral. More specifically, apart from the circular rim protruding from the support surface, the support surface is smooth, and the support surface and circular rim are integral.

[0028] When the gasket presses against the rim, it deforms. An annular groove is formed in the gasket, and the protruding rim fits into the annular groove. The gasket presses against the protruding rim, causing it to embed itself into the gasket. More specifically, the circular rim protruding from the seat surface embeds itself into the gasket. As a result, the arrangement becomes fluid-tight, and the rim retains the gasket. The rim retains the gasket even when the temperature of the refrigerant in the valve changes. No additional gasket or O-ring is required to retain the gasket.

[0029] The washer is made of a material that is more ductile than the circular edge. The washer is also made of a material that is more ductile than the support surface. As a non-limiting example, the washer can be made of a polymer material. As a non-limiting example, the support surface and the rim can be made of a metal, such as steel or aluminum or alloys thereof.

[0030] The rim protrudes from the support surface and may include a circular protruding rim. The rim protrudes from the support surface and may include a circular protruding rim. In an embodiment, the rim protrudes from the support surface and includes an edge, such as an annular edge. In a specific embodiment, the rim protrudes from the support surface and is an edge, such as an annular edge.

[0031] The portion of the rim or edge pointing toward the washer may be tapered. The portion of the rim or edge pointing toward the washer preferably tapers at an obtuse angle. As non-limiting examples, the obtuse angle may be greater than 105°, or 120°, or less than 135°. As another non-limiting example, the obtuse angle may be approximately 120°. The angle may be between 119° and 121°.

[0032] Similarly, the portion of the circular rim or the portion of the annular edge pointing toward the washer can be tapered. The portion of the circular rim or the portion of the annular edge pointing toward the washer preferably tapers at an obtuse angle. As non-limiting examples, the obtuse angle can be greater than 105°, or 120°, or less than 135°. As another non-limiting example, the obtuse angle can be approximately 120°. The angle can be between 119° and 121°.

[0033] It is contemplated that more than one rim may protrude from the surface of the support of the assembly. More specifically, two or three rims may protrude from the surface of the support. These rims protrude from the surface of the support toward the washer. The support surface and the rims protruding from the support surface are ideally integral.

[0034] In other words, when the gasket is pressed against the seat, more than one rim embeds itself into the gasket. Consequently, multiple grooves are formed in the gasket. The number of grooves in the gasket corresponds to the number of rims protruding from the surface of the seat. As a result, the arrangement becomes even more fluid-tight, and the rims retain the gasket. Even when the temperature of the refrigerant in the valve changes, the rims retain the gasket. No additional gaskets or O-rings are required to retain the gasket.

[0035] It is also conceivable that more than one circular rim protrudes from the surface of the assembly's seat. More specifically, two or three circular rims may protrude from the seat's surface. These circular rims protrude from the seat's surface toward the gasket. The circular rims are preferably concentric. Ideally, the seat surface and the circular rims protruding from the seat surface are integral.

[0036] In other words, when the gasket is pressed against the seat, more than one circular rim embeds itself into the gasket. Consequently, multiple grooves are formed in the gasket. The number of grooves in the gasket corresponds to the number of circular rims protruding from the surface of the seat. As a result, the arrangement becomes even more fluid-tight, and the circular rims retain the gasket. Even when the temperature of the refrigerant in the valve changes, the circular rims retain the gasket. No additional gaskets or O-rings are required to retain the gasket.

[0037] It is contemplated that more than one edge may protrude from the surface of the support of the assembly. More specifically, two or three edges may protrude from the surface of the support. These edges protrude from the surface of the support toward the gasket. The support surface and the edges protruding from the support surface are ideally integral.

[0038] In other words, when the gasket is pressed against the seat, more than one edge embeds itself in the gasket. Consequently, multiple grooves are formed in the gasket. The number of grooves in the gasket is comparable to the number of edges protruding from the surface of the seat. As a result, the arrangement becomes even more fluid-tight, and the edges retain the gasket. Even when the temperature of the refrigerant in the valve changes, the edges retain the gasket. No additional gaskets or O-rings are required to retain the gasket.

[0039] It is also conceivable that more than one annular edge protrudes from the surface of the support of the assembly. More specifically, two or three annular edges may protrude from the surface of the support. These annular edges protrude from the surface of the support toward the gasket. The annular edges are preferably concentric. The support surface and the annular edges protruding from the support surface are ideally integral.

[0040] In other words, when the gasket is pressed against the seat, more than one annular edge embeds itself in the gasket. Consequently, a plurality of grooves are formed in the gasket. The number of grooves in the gasket corresponds to the number of annular edges protruding from the surface of the seat. As a result, the arrangement becomes even more fluid-tight, and the annular edges retain the gasket. Even when the temperature of the refrigerant in the valve changes, the annular edges retain the gasket. No additional gaskets or O-rings are required to retain the gasket.

[0041] Each portion of the rim or edge pointing toward the washer may be tapered. The portions of the rim or edge pointing toward the washer preferably each taper at an obtuse angle. As non-limiting examples, the obtuse angle may be greater than 105°, or 120°, or less than 135°. As another non-limiting example, the obtuse angle α may be approximately 120°:

[0042] α≈120°

[0043] The angle α can be between 119° and 121°:

[0044] 119°≤α≤121°

[0045] The portion of the rim or the portion of the edge pointing towards the washer preferably each tapers at substantially the same obtuse angle. The portion of the rim or the portion of the edge pointing towards the washer ideally each tapers at substantially the same obtuse angle.

[0046] Likewise, each portion of the circular rim or each portion of the annular edge pointing toward the washer may be tapered. The portion of the circular rim or the portion of the annular edge pointing toward the washer preferably tapers at an obtuse angle. As non-limiting examples, the obtuse angle may be greater than 105°, or 120°, or less than 135°. As another non-limiting example, the obtuse angle α may be approximately 120°:

[0047] α≈120°

[0048] The angle α can be between 119° and 121°:

[0049] 119°≤α≤121°

[0050] The portion pointing towards the circular rim of the washer or the portion of the annular edge preferably each tapers at substantially the same obtuse angle. The portion pointing towards the circular rim of the washer or the portion of the annular edge ideally each tapers at substantially the same obtuse angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Various features will become apparent to those skilled in the art from the following detailed description of the disclosed non-limiting embodiments. The drawings accompanying the detailed description can be briefly described as follows:

[0052] Figure 1 is a schematic diagram of a valve, such as a valve for a cooling circuit.

[0053] Figure 2 Draw Figure 1 Detail of the valve seat assembly of the valve shown in.

[0054] Figure 3 Detail of the valve seat of the valve seat assembly is shown.

[0055] Figure 4 Illustration of edge and / or rim details.

[0056] Figure 5 Assemblies having more than one edge and / or more than one rim are shown. DETAILED DESCRIPTION

[0057] Figure 1Various components of a valve 1 of the present disclosure are shown. Valve 1 is advantageously an expansion valve, or includes an expansion valve. Even more advantageously, valve 1 is an electronic expansion valve, or includes an electronic expansion valve. Valve 1 can be installed in a refrigeration-steam circuit. According to at least one embodiment, valve 1 is advantageously part of a refrigeration-steam circuit.

[0058] Valve 1 includes a housing 2. Valve housing 2 has sides defining a first port 3 and a second port 4. In an embodiment, first port 3 comprises a first conduit. It is also contemplated that second port 4 comprises a second conduit. According to one aspect of the present disclosure, first port 3 is an inlet port, and second port 4 is an outlet port. According to another aspect of the present disclosure, first port 3 is an outlet port, and second port 4 is an inlet port.

[0059] It is contemplated that the valve body is the housing 2 or includes the housing 2. In an embodiment, the housing 2 comprises a metallic material, such as steel, particularly austenitic (stainless) steel and / or ferritic steel. In an alternative embodiment, the housing 2 comprises aluminum (alloy), gunmetal, or brass. In yet another alternative embodiment, the housing 2 comprises a polymer material. According to one aspect, the housing 2 is manufactured using an additive manufacturing technique, such as 3D printing. In a specific embodiment, the manufacture of the housing 2 may involve selective laser sintering. It is also contemplated that the housing 2 comprises a gray cast material.

[0060] In a particular embodiment, the housing 2 is non-unitary.The non-unitary and / or modular housing 2 provides the valve 1 with the ability to accommodate various nominal flow values.

[0061] The first port 3 and the second port 4 are in fluid communication with each other to facilitate the flow of a fluid through the valve 1. In a preferred embodiment, the fluid comprises a refrigerant. As non-limiting examples, the fluid may be R32, R134a, R290, R410A, R450A, R452A, R513A, R454C, R1234yf, or R1234ze(E) refrigerants. The fluid at the inlet port is advantageously a liquid and / or gaseous fluid. The fluid at the outlet port is preferably a two-phase fluid.

[0062] A fluid path extends between the first port 3 and the second port 4. A plunger 5 is disposed in the fluid path. The plunger 5 is linearly movable. The plunger 5 is also axially movable. The plunger 5 engages with a valve seat assembly 6. Thus, the plunger 5 changes and restricts the flow rate of the fluid through the valve 1.

[0063] The plunger 5 comprises a head portion. The head portion projects from the plunger 5. Ideally, the head portion projects from the plunger 5 in the direction of the valve seat assembly 6. According to one aspect, the plunger 5 comprises a body portion. The head portion projects from the body portion of the plunger 5. Ideally, the head portion projects from the body portion of the plunger 5 in the direction of the valve seat assembly 6. According to one aspect, the plunger 5 comprises a receiving portion. The head portion projects from the receiving portion of the plunger 5. Ideally, the head portion projects from the receiving portion of the plunger 5 in the direction of the valve seat assembly 6.

[0064] The plunger 5 includes an end portion pointing toward the valve seat assembly 6. The end portion of the plunger 5 may have a shape of a receiving portion and / or an inverted bowl. The shape of the end portion of the plunger 5 may be such that the opening of the receiving portion points toward the valve seat assembly 6.

[0065] In an embodiment, the plunger 5 comprises an axial hole. The axial hole through the plunger 5 provides pressure compensation within the valve 1.

[0066] Advantageously, the head portion includes an end that points toward the valve seat assembly 6. The plunger 5 and / or the end of the head portion may include a rounded edge that points toward the valve seat assembly 6. The edge may be a sharp edge with an acute angle. That is, the edge tapers toward the valve seat assembly 6, and the taper defines an acute angle. The acute angle may be, for example, less than 20 degrees, or less than 10 degrees, or even less than 5 degrees.

[0067] The edge at the end of the plunger 5 is preferably a rim, or comprises a rim. The edge at the end of the plunger 5 follows a closed continuous line. The edge at the end of the plunger 5 can also follow a closed continuous and circular line.

[0068] Figure 1 The valve seat assembly 6 is shown as part of the second port 4. Those skilled in the art who have reviewed the embodiments disclosed herein will understand that the first port 3 may also include the valve seat assembly 6. Those skilled in the art will also understand that the assembly 6 may be separate from the first port 3 and may be separate from the second port 4.

[0069] exist Figure 1 In the embodiment shown in FIG, the plunger 5 can be linearly moved by linear movement of the armature 7. The linear movement of the plunger 5 defines an axial direction. That is, the plunger 5 can be axially moved by axial movement of the armature 7. The armature 7 can be mechanically connected to the plunger 5 via a rod 8. It is also conceivable that the armature 7 is directly connected to the plunger 5. It is also conceivable that the armature 7 and the plunger 5 are integral.

[0070] According to one aspect of the present disclosure, the armature 7, the rod 8 and the plunger 5 are monolithic. That is, both the rod 8 and the plunger 5 are integral parts of the armature 7. Likewise, the armature 7 and the rod 8 are integral with the plunger 5.

[0071] According to another aspect of the present disclosure, the plunger 5 is configured to rotate to a certain extent relative to the armature 7. The plunger 5 preferably rotates about an axis connecting the armature 7, the plunger 5, and / or the rod 8. In an embodiment, the plunger 5 is allowed to rotate at an articulation angle of 0.1 degrees, 0.2 degrees, or even 0.5 degrees. The limited amount of articulation of the plunger 5 relative to the armature 7 improves alignment of the arrangement.

[0072] At least a portion of the armature 7 may be surrounded by solenoids 9a, 9b. When current is applied, the solenoids 9a, 9b generate magnetic flux. This magnetic flux acts on the armature 7, causing the armature 7 to displace.

[0073] Figure 1 A valve 1 having a solenoid actuator is shown. It is contemplated that other actuators such as hydraulic or pneumatic actuators may be used to actuate the rod 8 and plunger 5. The valve 1 may also be actuated by a magnetic piston pump. This list of actuators is not exhaustive.

[0074] The tubular portion, such as a canister, need not enclose the armature 7 and / or rod 8. That is, the armature 7 has an outer surface. In one embodiment, a portion of the outer surface of the armature 7 directly faces the solenoids 9a, 9b. In another embodiment, the outer surface of the armature 7 directly faces the solenoids 9a, 9b. Similarly, the solenoids 9a, 9b have outer surfaces. In one embodiment, a portion of the outer surface of the solenoids 9a, 9b directly faces the armature 7. In another embodiment, the outer surfaces of the solenoids 9a, 9b directly face the armature 7.

[0075] The solenoids 9a, 9b and the armature 7 are arranged in the same chamber 10 inside the housing 2. The chamber 10 is ideally filled with a liquid and / or gaseous fluid. As non-limiting examples, the liquid and / or gaseous fluid inside the chamber 10 may be R32, R134a, R290, R410A, R450A, R452A, R513A, R454C, R1234yf, or R1234ze(E) refrigerant.

[0076] This liquid and / or gaseous fluid is in direct contact with the outer surface of the portion of the armature 7 that is inside the chamber 10. The liquid and / or gaseous fluid is also in direct contact with the solenoids 9a, 9b.

[0077] According to one aspect of the present disclosure, solenoids 9a, 9b comprise multiple coils. It is contemplated that at least one coil, at least two coils, or at least five coils of solenoids 9a, 9b are directly exposed to the liquid and / or gaseous fluid in chamber 10a. In particular embodiments, all coils of solenoids 9a, 9b are directly exposed to the liquid and / or gaseous fluid. Solenoids 9a, 9b preferably comprise helical solenoids.

[0078] Figure 1A solenoid 9a, 9b is shown comprising two parts. Advantageously, the two parts of the solenoid 9a, 9b electrically form a single solenoid 9a, 9b. That is, the two parts of the solenoid 9a, 9b are electrically connected.

[0079] The elastic member 11 ensures that the valve 1 is a normally closed valve. The elastic member 11 is coupled to the armature 7. In a particular embodiment, the elastic member 11 is mechanically connected to the armature 7.

[0080] Resilient member 11 urges armature 7 and plunger 5 to close valve 1. To this end, resilient member 11 urges armature 7 and plunger 5 toward seat assembly 6. In a specific embodiment, resilient member 11 urges armature 7, rod 8, and plunger 5 to close valve 1. To this end, resilient member 11 urges armature 7, rod 8, and plunger 5 toward seat assembly 6. Member 11 preferably urges these movable members 7, 8, 5 toward assembly 6 until plunger 5 engages a mating member of assembly 6. Plunger 5 advantageously engages a mating member of assembly 6 in the closed position of valve 1.

[0081] According to one aspect, the elastic member 11 comprises a compression spring. In one embodiment, the elastic member 11 comprises a helical compression spring.

[0082] Figure 1 An elastic member 11 in the form of a spring is shown. It is conceivable that other elastic members, such as ferromagnetic members, propel the armature 7 and the plunger 5 to close the valve 1. It is conceivable that an elastic member, such as a ferromagnetic member, propels the armature 7, the rod 8 and the plunger 5 to close the valve 1. This list of elastic members is not exhaustive.

[0083] Now turn Figure 2 , showing details of the valve seat assembly 6 of the valve 1. The valve seat assembly 6 includes a gasket 12, such as an annular seal. The gasket 12 can be made of an elastic material, such as a polymer material and / or a rubber material. As a non-limiting example, the gasket 12 can be made of a polymer material including at least one of the following:

[0084] - polytetrafluoroethylene,

[0085] -Polyetheretherketone.

[0086] The polymer material including polytetrafluoroethylene may also include graphite particles, such as spherical graphite.

[0087] As other non-limiting examples, the gasket 12 may be made of a polymeric material selected from the group consisting of:

[0088] -PTFE or

[0089] -Polyetheretherketone.

[0090] The gasket 12 provides a hole to allow fluid to flow to or from the first port 3. Likewise, the gasket 12 provides a hole to allow fluid to flow to or from the second port 4. In other words, the gasket 12 forms a hollow disc.

[0091] The pores and / or apertures of the gasket 12 prevent the plunger 5 from moving in and out of the pores and / or apertures of the gasket 12. In other words, the gasket 12 will ultimately prevent or inhibit the movement of the plunger 5. That is, the inner diameter of the pores and / or apertures of the gasket 12 is smaller than the outer diameter of the plunger 5. More specifically, the inner diameter of the pores and / or apertures can be smaller than the outer diameter of the rim of the plunger 5. The inner diameter of the pores and / or apertures can also be smaller than the outer diameter of the rim of the plunger 5. The inner diameter of the pores and / or apertures can also be smaller than the outer diameter of the head portion of the plunger 5.

[0092] In an embodiment, the gasket 12 has cylindrical symmetry. It is also conceivable that the second port 4 has cylindrical symmetry. Ideally, both the gasket 12 and the second port 4 have cylindrical symmetry. The gasket 12 and the second port 4 can even exhibit cylindrical symmetry about the same axis or about substantially the same axis. This axis is advantageously defined by the linear movement of the plunger 5. This axis can also be defined by the axial movement of the plunger 5.

[0093] In a particular embodiment, both the gasket 12 and the aperture of the gasket 12 have cylindrical symmetry. The gasket 12 and the aperture of the gasket 12 can even exhibit cylindrical symmetry about the same axis or about substantially the same axis. This axis is advantageously defined by the linear movement of the plunger 5. This axis can also be defined by the axial movement of the plunger 5.

[0094] The washer 12 may be mechanically mounted to the frame 13. The washer 12 may also be mounted to a mount 15 of the assembly 6. In an embodiment, the washer 12 is mounted to the mount 15 of the frame 13. Ideally, the frame 13 and the mount 15 are integral.

[0095] In an embodiment, the frame 13 and / or the support 15 mechanically connect the gasket 12 to the second port 4. It is contemplated that the support 15 and the gasket 12 provide parallel surfaces. These parallel surfaces are perpendicular to the direction of flow through the second port 4 and / or perpendicular to the axis of symmetry of the second port 4. These parallel surfaces are also each perpendicular to the axial direction defined by (the movement of) the plunger 5. It is contemplated that the parallel surfaces of the gasket 12 abut the parallel surfaces of the support 15. That is, the gasket 12 rests on the support 15.

[0096] In an embodiment, the frame 13 comprises a metallic material, such as steel, particularly austenitic (stainless) steel and / or ferritic steel. In an alternative embodiment, the frame 13 comprises aluminum (alloy), gunmetal, or brass. In yet another alternative embodiment, the frame 13 comprises a polymer material. According to one aspect, the frame 13 is manufactured using additive manufacturing techniques such as 3D printing. In a specific embodiment, the manufacture of the frame 13 may involve selective laser sintering. It is also conceivable that the frame 13 comprises a gray cast material.

[0097] According to one aspect of the present disclosure, the housing 2 and the frame 13 are made of the same material.

[0098] According to a particular aspect of the present disclosure, the housing 2 and the frame 13 are integral. When the housing 2 and the frame 13 are formed as a single piece, the number of components of the valve 1 can be reduced. Consequently, there are fewer components that are susceptible to failure.

[0099] According to a related aspect of the present disclosure, the support 15 comprises a metal material such as steel. As a non-limiting example, the steel material may be selected from:

[0100] - austenitic steel,

[0101] - ferritic steel,

[0102] -Stainless steel.

[0103] In alternative embodiments, support 15 comprises aluminum (alloy), gunmetal, or brass. In yet another alternative embodiment, support 15 comprises a polymer material. In one aspect, support 15 is manufactured using additive manufacturing techniques such as 3D printing. In a specific embodiment, the manufacture of support 15 may involve selective laser sintering. It is also contemplated that support 15 comprises a gray cast material.

[0104] According to another aspect of the present disclosure, the frame 13 and the support 15 each comprise a metal material such as steel. As a non-limiting example, the steel material may be selected from:

[0105] - austenitic steel,

[0106] - ferritic steel,

[0107] -Stainless steel.

[0108] In alternative embodiments, the frame 13 and support 15 each comprise aluminum (alloy), gunmetal, or brass. In yet another alternative embodiment, the frame 13 and support 15 each comprise a polymer material. According to one aspect, the frame 13 and support 15 are manufactured using additive manufacturing techniques such as 3D printing. In a specific embodiment, the manufacture of the frame 13 and support 15 may involve selective laser sintering. It is also contemplated that the frame 13 and support 15 each comprise a gray cast material.

[0109] The valve seat assembly 6 also includes flow control adapters 14a, 14b. The flow control adapters 14a, 14b are arranged so that the gasket 12 is arranged between the flow control adapters 14a, 14b and the valve port 4. Ideally, the gasket 12 is arranged between the flow control adapters 14a, 14b and (the aforementioned parallel surfaces of) the seat 15.

[0110] The flow control adapters 14a, 14b can be mechanically mounted to the frame 13. Thus, the frame 13 mechanically connects the flow control adapters 14a, 14b to the second port 4. It is contemplated that the flow control adapters 14a, 14b and the gasket 12 provide parallel surfaces. These parallel surfaces are perpendicular to the direction of flow through the second port 4 and / or perpendicular to the axis of symmetry of the second port 4. These parallel surfaces are also each perpendicular to the axial direction defined by (the linear movement of) the plunger 5. These parallel surfaces are also each perpendicular to the axial direction defined by (the axial movement of) the plunger 5. It is contemplated that the parallel surfaces of the gasket 12 abut the parallel surfaces of the flow control adapters 14a, 14b.

[0111] In another embodiment, the flow control adapters 14a, 14b and the plunger 5 are integral. Thereby, the number of components of the valve 1 is reduced. This results in a more robust valve 1 as there are fewer components that are prone to failure.

[0112] That is, the gasket 12 has a first surface and a second surface, the second surface being different from the first surface. The second surface of the gasket 12 is parallel to the first surface. The first surface of the gasket 12 and the second surface of the gasket 12 are arranged on opposite sides of the gasket 12. The first surface of the gasket 12 faces and / or abuts the support 15. The second surface of the gasket 12 faces and / or abuts the flow control adapters 14a, 14b. The gasket 12 is advantageously squeezed between (a portion of) the support 15 and the flow control adapters 14a, 14b. In the closed position, the second surface of the gasket 12 also abuts the plunger 5 and / or the head portion of the plunger 5.

[0113] In operation, the gasket 12 can cooperate with the plunger 5 to close or open the valve 1. More specifically, the gasket 12 cooperates with a matching portion of the plunger 5. The matching portion of the plunger 5 can be selected from at least one of the following:

[0114] - the edge of the plunger 5,

[0115] - the rim of the plunger 5,

[0116] - the head portion of the plunger 5 .

[0117] The gasket 12 can be made of a material that is more ductile than the material of the mating portion of the plunger 5. At temperatures below 433 Kelvin, the material of the gasket 12 is more ductile than the material of the mating portion. At temperatures above 213 Kelvin, the material of the gasket 12 is also more ductile than the material of the mating portion. In other words, when the valve 1 is in use, the gasket 12 may deform.

[0118] In a particular embodiment, the flow control adapters 14a, 14b comprise aluminum (alloy) or gunmetal or brass. In another particular embodiment, the flow control adapters 14a, 14b comprise a polymer material. As a non-limiting example, the material of the flow control adapters 14a, 14b may also be selected from:

[0119] - austenitic steel,

[0120] - ferritic steel,

[0121] -Stainless steel.

[0122] The flow control adapters 14a, 14b provide apertures and / or orifices to enable fluid to flow to or from the first port 3. Similarly, the flow control adapters 14a, 14b provide apertures and / or orifices to enable fluid to flow to or from the second port 4. The apertures and / or orifices of the adapters 14a, 14b provide for linear movement of the plunger 5 in and out of the apertures and / or orifices. The apertures and / or orifices of the adapters 14a, 14b also provide for axial movement of the plunger 5 in and out of the apertures and / or orifices. That is, the inner diameter of the apertures and / or orifices of the adapters 14a, 14b is larger than the outer diameter of the plunger 5. More specifically, the inner diameter of the apertures and / or orifices can be larger than the outer diameter of the rim of the plunger 5. The inner diameter of the apertures and / or orifices can also be larger than the outer diameter of the rim of the plunger 5. The inner diameter of the apertures and / or orifices can also be larger than the outer diameter of the head portion of the plunger 5.

[0123] In an embodiment, the plunger 5 can move linearly along the flow direction by a distance between 0 and 10 mm. More preferably, the plunger 5 can move linearly along the flow direction by a distance between 0 and 5 mm. Even more preferably, the plunger 5 can move linearly along the flow direction by a distance between 0 and 3 mm. The small travel distance of the plunger 5 results in the valve 1 requiring fewer resources for actuation.

[0124] In a related embodiment, the plunger 5 can move axially a distance between 0 and 10 mm in the direction of flow. More preferably, the plunger 5 can move axially a distance between 0 and 5 mm in the direction of flow. Even more preferably, the plunger 5 can move axially a distance between 0 and 3 mm in the direction of flow. The small travel distance of the plunger 5 results in the valve 1 requiring fewer resources in terms of actuation.

[0125] The flow control adapters 14a, 14b advantageously form a component distinct from the frame 13 and distinct from the gasket 12. The flow control adapters 14a, 14b advantageously also form a component distinct from the seat 15.

[0126] The flow control adapters 14a, 14b can even be mechanically separated from the frame 13 and the gasket 12. The flow control adapters 14a, 14b can also be mechanically separated from the support 15. These separations preferably occur non-destructively. That is, various flow control adapters 14a, 14b can be used with the same frame 13 and the same gasket 12. Various flow control adapters 14a, 14b can also be used with the same support 15. More specifically, the various flow control adapters 14a, 14b can be mounted to and / or assembled to the same frame 13. For example, the various flow control adapters 14a, 14b can be screw mounted and / or glued and / or heat shrink fitted to the frame 13. As another non-limiting example, the various flow control adapters 14a, 14b can be interference fitted to the frame 13. As yet another non-limiting example, the various flow control adapters 14a, 14b can be stuffed into the frame 13. The valve 1 can be configured more easily when various flow control adapters 14a, 14b can be mounted to the same frame 13. A variety of flow rates through the valve can be achieved by modifying and / or changing the flow control adapters 14a, 14b.

[0127] exist Figure 1 and Figure 2 In the embodiment shown in FIG, the flow control adapters 14a, 14b are diffusers and have rotational symmetry. Figure 1 As shown in , the flow control adapters 14a, 14b include an inner portion, and the inner portion has a beveled surface. The surface of the inner portion is preferably beveled and at the same time smooth. It is also conceivable that the mating portion of the plunger 5 has rotational symmetry. Ideally, both the flow control adapters 14a, 14b and the mating portion of the plunger 5 have rotational symmetry. It is also conceivable that the rim of the mating portion of the plunger 5 has rotational symmetry. Ideally, both the flow control adapters 14a, 14b and the rim of the mating portion of the plunger 5 have rotational symmetry. It is also conceivable that the edge of the mating portion of the plunger 5 has rotational symmetry. Ideally, both the flow control adapters 14a, 14b and the edge of the mating portion of the plunger 5 have rotational symmetry. In an embodiment, the head portion of the plunger 5 has rotational symmetry. Ideally, both the flow control adapters 14a, 14b and the head portion of the plunger 5 have rotational symmetry.

[0128] The mating portions of the flow control adapters 14a, 14b and the plunger 5 may even exhibit rotational symmetry about (approximately) the same axis. The rims of the mating portions of the flow control adapters 14a, 14b and the plunger 5 may also exhibit rotational symmetry about (approximately) the same axis. The edges of the mating portions of the flow control adapters 14a, 14b and the plunger 5 may also exhibit rotational symmetry about (approximately) the same axis. In an embodiment, the head portion of the flow control adapters 14a, 14b and the plunger 5 exhibit rotational symmetry about (approximately) the same axis. These axes are advantageously defined by the linear movement of the plunger 5. These axes may also be defined by the axial movement of the plunger 5.

[0129] Now turn Figure 3 , showing in detail the configuration of the support 15 of the assembly 6. The support 15 comprises a support surface directed towards the gasket 12. The gasket 12 of the assembly 6 is shown in FIG. Figure 2 middle.

[0130] The seating surface includes a first flat portion 16a, 16b and / or a first smooth portion 16a, 16b. The first flat portion 16a, 16b and / or the first smooth portion 16a, 16b face the first surface of the gasket 12. The first flat portion 16a, 16b and / or the first smooth portion 16a, 16b of the seating surface are advantageously parallel to the first surface of the gasket 12. The first flat portion 16a, 16b and / or the first smooth portion 16a, 16b may abut the first surface of the gasket 12.

[0131] In an embodiment, the first flat portion 16a, 16b of the surface of the support 15 comprises an outer portion 16a, 16b of the surface of the support 15. In a special embodiment, the first flat portion 16a, 16b of the surface of the support 15 is an outer portion 16a, 16b of the surface of the support 15. In an embodiment, the first smooth portion 16a, 16b of the surface of the support 15 comprises an outer portion 16a, 16b of the surface of the support 15. In a special embodiment, the first smooth portion 16a, 16b of the surface of the support 15 is an outer portion 16a, 16b of the surface of the support 15.

[0132] According to one aspect of the present disclosure, the first flat portions 16a, 16b of the surface of the support 15 have rotational symmetry. Preferably, the first flat portions 16a, 16b and the flow control adapters 14a, 14b and the head portion of the plunger 5 have rotational symmetry. The flow control adapters 14a, 14b and the first flat portions 16a, 16b can exhibit rotational symmetry about substantially the same axis. The flow control adapters 14a, 14b and the first flat portions 16a, 16b can even exhibit rotational symmetry about the same axis. The plunger 5 and the first flat portions 16a, 16b can even exhibit rotational symmetry about substantially the same axis. The plunger 5 and the first flat portions 16a, 16b can even exhibit rotational symmetry about the same axis. These axes are advantageously defined by the linear movement of the plunger 5. These axes can also be defined by the axial movement of the plunger 5.

[0133] According to one aspect of the present disclosure, the first smooth portions 16a, 16b of the surface of the support 15 have rotational symmetry. Preferably, the first smooth portions 16a, 16b and the flow control adapters 14a, 14b and the head portion of the plunger 5 have rotational symmetry. The flow control adapters 14a, 14b and the first smooth portions 16a, 16b may exhibit rotational symmetry about substantially the same axis. The flow control adapters 14a, 14b and the first smooth portions 16a, 16b may even exhibit rotational symmetry about the same axis. The plunger 5 and the first smooth portions 16a, 16b may even exhibit rotational symmetry about substantially the same axis. These axes are advantageously defined by the linear movement of the plunger 5. These axes may also be defined by the axial movement of the plunger 5.

[0134] The seating surface further includes second flat portions 17a, 17b and / or second smooth portions 17a, 17b. The first flat portions 16a, 16b are different from the second flat portions 17a, 17b. The first smooth portions 16a, 16b are different from the second smooth portions 17a, 17b. The second flat portions 17a, 17b and / or second smooth portions 17a, 17b face the first surface of the gasket 12. The second flat portions 17a, 17b and / or second smooth portions 17a, 17b of the seating surface are advantageously parallel to the first surface of the gasket 12. The second flat portions 17a, 17b and / or second smooth portions 17a, 17b may abut the first surface of the gasket 12.

[0135] In an embodiment, the second flat portion 17a, 17b of the surface of the support 15 comprises the inner portion 17a, 17b of the surface of the support 15. In a special embodiment, the second flat portion 17a, 17b of the surface of the support 15 is the inner portion 17a, 17b of the surface of the support 15. In an embodiment, the second smooth portion 17a, 17b of the surface of the support 15 comprises the inner portion 17a, 17b of the surface of the support 15. In a special embodiment, the second smooth portion 17a, 17b of the surface of the support 15 is the inner portion 17a, 17b of the surface of the support 15.

[0136] According to one aspect of the present disclosure, the second flat portions 17a, 17b of the surface of the support 15 have rotational symmetry. Preferably, the second flat portions 17a, 17b and the flow control adapters 14a, 14b and the head portion of the plunger 5 have rotational symmetry. The flow control adapters 14a, 14b and the second flat portions 17a, 17b can exhibit rotational symmetry about substantially the same axis. The flow control adapters 14a, 14b and the second flat portions 17a, 17b can even exhibit rotational symmetry about the same axis. The plunger 5 and the second flat portions 17a, 17b can even exhibit rotational symmetry about substantially the same axis. The plunger 5 and the second flat portions 17a, 17b can even exhibit rotational symmetry about the same axis. These axes are advantageously defined by the linear movement of the plunger 5. These axes can also be defined by the axial movement of the plunger 5.

[0137] The second flat portions 17a, 17b are closer to the axis of symmetry than the first flat portions 16a, 17b. The second smooth portions 17a, 17b are closer to the axis of symmetry than the first smooth portions 16a, 17b.

[0138] According to one aspect of the present disclosure, the second smooth portions 17a, 17b of the surface of the support 15 have rotational symmetry. Preferably, the second smooth portions 17a, 17b and the flow control adapters 14a, 14b and the head portion of the plunger 5 have rotational symmetry. The flow control adapters 14a, 14b and the second smooth portions 17a, 17b may exhibit rotational symmetry about substantially the same axis. The flow control adapters 14a, 14b and the second smooth portions 17a, 17b may even exhibit rotational symmetry about the same axis. The plunger 5 and the second smooth portions 17a, 17b may even exhibit rotational symmetry about substantially the same axis. The plunger 5 and the second smooth portions 17a, 17b may even exhibit rotational symmetry about the same axis. These axes are advantageously defined by the linear movement of the plunger 5. These axes may also be defined by the axial movement of the plunger 5.

[0139] A first rim 18a, 18b, such as a first circular rim, protrudes from the support 15 and / or a surface of the support 15. Aside from the first rims 18a, 18b protruding from the support surface, the support surface is smooth, and the support surface and the first rims 18a, 18b are integral. More specifically, apart from the first circular rims 18a, 18b protruding from the support surface, the support surface is smooth, and the support surface and the first circular rim are integral. Apart from the first circular rims 18a, 18b protruding from the support surface, the support surface may be flat.

[0140] The first rims 18a, 18b are preferably disposed between the first flat portions 16a, 16b and the second flat portions 17a, 17b. The first rims 18a, 18b may also be disposed between the first smooth portions 16a, 16b and the second smooth portions 17a, 17b. More specifically, the first circular rims 18a, 18b are disposed between the first flat portions 16a, 16b and the second flat portions 17a, 17b. The first circular rims 18a, 18b may also be disposed between the first smooth portions 16a, 16b and the second smooth portions 17a, 17b.

[0141] According to one aspect of the present disclosure, the first rims 18a, 18b protruding from the surface of the support 15 have rotational symmetry. Preferably, the first rims 18a, 18b and the flow control adapters 14a, 14b and the head portion of the plunger 5 have rotational symmetry. The flow control adapters 14a, 14b and the first rims 18a, 18b can exhibit rotational symmetry about substantially the same axis. The flow control adapters 14a, 14b and the first rims 18a, 18b can even exhibit rotational symmetry about the same axis. The plunger 5 and the first rims 18a, 18b can even exhibit rotational symmetry about the same axis. These axes are advantageously defined by the linear movement of the plunger 5. These axes can also be defined by the axial movement of the plunger 5.

[0142] It is conceivable that the first rims 18a, 18b protrude from the surface of the support 15 by a distance between 0.1 mm and 0.5 mm. That is, the first rims 18a, 18b have ends pointing toward the washer 12. The minimum distance between the ends of the first rims 18a, 18b and the surface of the support 15 is between 0.1 mm and 0.5 mm. It is also conceivable that the first rims 18a, 18b protrude from the surface of the support 15 by 0.2 mm or 0.3 mm. That is, the first rims 18a, 18b have ends pointing toward the washer 12. The minimum distance between the ends of the first rims 18a, 18b and the surface of the support 15 is 0.2 mm or 0.3 mm. As the first rims 18a, 18b protrude further from the surface of the support 15, the retention of the washer 12 is improved.

[0143] The minimum distance between the circular ends of the first rims 18a, 18b and the surface of the support 15 preferably remains approximately constant. That is, the minimum distance remains approximately constant along the entire circumference of the first rims 18a, 18b. The minimum distance between the circular ends of the first rims 18a, 18b and the surface of the support 15 ideally remains constant. That is, the minimum distance remains constant along the entire circumference of the first rims 18a, 18b. In a particular embodiment, the minimum distance between the circular ends of the first circular rims 18a, 18b and the surface of the support 15 preferably remains approximately constant. That is, the minimum distance remains approximately constant along the entire circumference of the first circular rims 18a, 18b. The minimum distance between the circular ends of the first circular rims 18a, 18b and the surface of the support 15 ideally remains constant. That is, the minimum distance remains constant along the entire circumference of the first circular rims 18a, 18b.

[0144] In a related embodiment, edges 18a, 18b, such as first circular edges, protrude from the support 15 and / or a surface of the support 15. Aside from the first edges 18a, 18b protruding from the support surface, the support surface is smooth, and the support surface and the first edges 18a, 18b are integral. More specifically, apart from the first circular edges 18a, 18b protruding from the support surface, the support surface is smooth, and the support surface and the first circular edges are integral. Aside from the first circular edges 18a, 18b protruding from the support surface, the support surface may be flat.

[0145] The first edges 18a, 18b are preferably disposed between the first flat portions 16a, 16b and the second flat portions 17a, 17b. The first edges 18a, 18b may also be disposed between the first smooth portions 16a, 16b and the second smooth portions 17a, 17b. More specifically, the first rounded edges 18a, 18b are disposed between the first flat portions 16a, 16b and the second flat portions 17a, 17b. The first rounded edges 18a, 18b may also be disposed between the first smooth portions 16a, 16b and the second smooth portions 17a, 17b.

[0146] According to one aspect of the present disclosure, the first edges 18a, 18b protruding from the surface of the support 15 have rotational symmetry. Preferably, the first edges 18a, 18b and the flow control adapters 14a, 14b and the head portion of the plunger 5 have rotational symmetry. The flow control adapters 14a, 14b and the first edges 18a, 18b can exhibit rotational symmetry about substantially the same axis. The flow control adapters 14a, 14b and the first edges 18a, 18b can even exhibit rotational symmetry about the same axis. The plunger 5 and the first edges 18a, 18b can even exhibit rotational symmetry about substantially the same axis. The plunger 5 and the first edges 18a, 18b can even exhibit rotational symmetry about the same axis. These axes are advantageously defined by the linear movement of the plunger 5. These axes can also be defined by the axial movement of the plunger 5.

[0147] It is conceivable that the first edges 18a, 18b protrude from the surface of the support 15 by a distance between 0.1 mm and 0.5 mm. That is, the first edges 18a, 18b have ends pointing toward the gasket 12. The minimum distance between the ends of the first edges 18a, 18b and the surface of the support 15 is between 0.1 mm and 0.5 mm. It is also conceivable that the first edges 18a, 18b protrude from the surface of the support 15 by 0.2 mm or 0.3 mm. That is, the first edges 18a, 18b have ends pointing toward the gasket 12. The minimum distance between the ends of the first edges 18a, 18b and the surface of the support 15 is 0.2 mm or 0.3 mm. As the first edges 18a, 18b protrude further from the surface of the support 15, the retention of the gasket 12 is improved.

[0148] The minimum distance between the circular ends of the first edges 18a, 18b and the surface of the support 15 preferably remains approximately constant. That is, the minimum distance remains approximately constant along the entire circumference of the first edges 18a, 18b. The minimum distance between the circular ends of the first edges 18a, 18b and the surface of the support 15 ideally remains constant. That is, the minimum distance remains constant along the entire circumference of the first edges 18a, 18b. In a particular embodiment, the minimum distance between the circular ends of the first circular edges 18a, 18b and the surface of the support 15 preferably remains approximately constant. That is, the minimum distance remains approximately constant along the entire circumference of the first circular edges 18a, 18b. The minimum distance between the circular ends of the first circular edges 18a, 18b and the surface of the support 15 ideally remains constant. That is, the minimum distance remains constant along the entire circumference of the first circular edges 18a, 18b.

[0149] Now refer to Figure 4 , details of the first wheel rims 18a, 18b are shown. Figure 4As shown in FIG, the first rims 18a, 18b protrude from the seat 15 and / or the surface of the seat 15. The first rims 18a, 18b have rounded ends pointing toward the washer 12, and the first rims 18a, 18b taper toward their rounded ends.

[0150] The first rims 18a, 18b taper toward their rounded ends at an obtuse angle. As non-limiting examples, the obtuse angle may be greater than 105°, or 120°, or less than 135°. As another non-limiting example, the obtuse angle may be approximately 120°. The obtuse angle may be between 119° and 121°. The obtuse angle provides liquid tightness to the valve 1 and the valve seat assembly 6 throughout the entire operating temperature range.

[0151] like Figure 4 As shown in FIG, the first rims 18a, 18b may be the first circular rims 18a, 18b as explained above. The first circular rims 18a, 18b protrude from the support 15 and the surface of the support 15. The first circular rims 18a, 18b have circular ends pointing toward the gasket 12, and the first circular rims 18a, 18b taper toward their circular ends.

[0152] The first circular rims 18a, 18b taper toward their circular ends at an obtuse angle. As non-limiting examples, the obtuse angle may be greater than 105°, or 120°, or less than 135°. As another non-limiting example, the obtuse angle may be approximately 120°. The obtuse angle may be between 119° and 121°. The obtuse angle provides liquid tightness to the valve 1 and the valve seat assembly 6 over the entire operating temperature range.

[0153] Figure 4 Details of the first edges 18a, 18b are also shown. Figure 4 As shown in FIG, the first edges 18a, 18b protrude from the seat 15 and / or the surface of the seat 15. The first edges 18a, 18b have rounded ends pointing toward the gasket 12, and the first edges 18a, 18b taper toward their rounded ends.

[0154] The first edges 18a, 18b taper toward their rounded ends at an obtuse angle. As non-limiting examples, the obtuse angle may be greater than 105°, or 120°, or less than 135°. As another non-limiting example, the obtuse angle may be approximately 120°. The obtuse angle may be between 119° and 121°. The obtuse angle provides liquid tightness to the valve 1 and the valve seat assembly 6 over the entire operating temperature range.

[0155] like Figure 4 As shown in , the first edges 18a, 18b may be first circular edges 18a, 18b as explained above. Figure 4As shown in FIG, the first circular edges 18a, 18b protrude from the seat 15 and the surface of the seat 15. The first circular edges 18a, 18b have circular ends directed toward the gasket 12, and the first circular edges 18a, 18b taper toward the circular ends thereof.

[0156] The first circular edges 18a, 18b taper toward their circular ends at an obtuse angle. As non-limiting examples, the obtuse angle may be greater than 105°, or 120°, or less than 135°. As another non-limiting example, the obtuse angle may be approximately 120°. The obtuse angle may be between 119° and 121°. The obtuse angle provides liquid tightness to the valve 1 and the valve seat assembly 6 over the entire operating temperature range.

[0157] Figure 5 A valve seat assembly 6 is shown having more than one rim. Second rims 19a, 19b protrude from the seat 15 and the surface of the seat 15. It is contemplated that the second rims 19a, 19b comprise outer rims 19a, 19b. It is also contemplated that the second rims 19a, 19b are outer rims 19a, 19b.

[0158] According to one aspect of the present disclosure, the outer rims 19a, 19b protruding from the surface of the support 15 have rotational symmetry. Preferably, the outer rims 19a, 19b and the flow control adapters 14a, 14b and the head portion of the plunger 5 have rotational symmetry. The flow control adapters 14a, 14b and the outer rims 19a, 19b can exhibit rotational symmetry about substantially the same axis. The flow control adapters 14a, 14b and the outer rims 19a, 19b can even exhibit rotational symmetry about the same axis. The plunger 5 and the outer rims 19a, 19b can even exhibit rotational symmetry about substantially the same axis. The plunger 5 and the outer rims 19a, 19b can even exhibit rotational symmetry about the same axis. These axes are advantageously defined by the linear movement of the plunger 5. These axes can also be defined by the axial movement of the plunger 5.

[0159] It is conceivable that the outer rims 19a, 19b protrude from the surface of the support 15 by a distance between 0.1 mm and 0.5 mm. That is, the outer rims 19a, 19b have ends pointing toward the washer 12. The minimum distance between the ends of the outer rims 19a, 19b and the surface of the support 15 is between 0.1 mm and 0.5 mm. It is also conceivable that the outer rims 19a, 19b protrude from the surface of the support 15 by 0.2 mm or 0.3 mm. That is, the outer rims 19a, 19b have ends pointing toward the washer 12. The minimum distance between the ends of the outer rims 19a, 19b and the surface of the support 15 is 0.2 mm or 0.3 mm. As the outer rims 19a, 19b protrude further from the surface of the support 15, the retention of the washer 12 is improved.

[0160] The minimum distance between the circular ends of the outer rims 19a, 19b and the surface of the support 15 is preferably maintained substantially constant. That is, the minimum distance remains substantially constant along the entire circumference of the outer rims 19a, 19b. The minimum distance between the circular ends of the outer rims 19a, 19b and the surface of the support 15 is ideally maintained constant. That is, the minimum distance remains constant along the entire circumference of the outer rims 19a, 19b.

[0161] For example Figure 4 The description of the obtuse angles of the first rims 18a, 18b shown in FIG. Figure 5 The outer rims 19a, 19b are shown in FIG.

[0162] According to another aspect of the present disclosure, the outer rims 19a, 19b may include outer circular rims 19a, 19b. More specifically, the outer rims 19a, 19b may be outer circular rims 19a, 19b.

[0163] The outer circular rims 19a, 19b protrude from the support 15 and / or from the surface of the support 15 and have rotational symmetry. Preferably, the outer circular rims 19a, 19b and the flow control adapters 14a, 14b and the head portion of the plunger 5 have rotational symmetry. The flow control adapters 14a, 14b and the outer circular rims 19a, 19b can exhibit rotational symmetry about substantially the same axis. The flow control adapters 14a, 14b and the outer circular rims 19a, 19b can even exhibit rotational symmetry about the same axis. The plunger 5 and the outer circular rims 19a, 19b can even exhibit rotational symmetry about substantially the same axis. The plunger 5 and the outer circular rims 19a, 19b can even exhibit rotational symmetry about the same axis. These axes are advantageously defined by the linear movement of the plunger 5. These axes can also be defined by the axial movement of the plunger 5.

[0164] It is conceivable that the outer circular rims 19a, 19b protrude from the surface of the support 15 by a distance between 0.1 mm and 0.5 mm. That is, the outer circular rims 19a, 19b have ends pointing toward the washer 12. The minimum distance between the ends of the outer circular rims 19a, 19b and the surface of the support 15 is between 0.1 mm and 0.5 mm. It is also conceivable that the outer circular rims 19a, 19b protrude from the surface of the support 15 by 0.2 mm or 0.3 mm. That is, the outer circular rims 19a, 19b have ends pointing toward the washer 12. The minimum distance between the ends of the outer circular rims 19a, 19b and the surface of the support 15 is 0.2 mm or 0.3 mm. As the outer circular rims 19a, 19b protrude further from the surface of the support 15, the retention of the washer 12 is improved.

[0165] The minimum distance between the circular ends of the outer circular rims 19a, 19b and the surface of the support 15 is preferably maintained substantially constant. That is, the minimum distance remains substantially constant along the entire circumference of the outer circular rims 19a, 19b. The minimum distance between the circular ends of the outer circular rims 19a, 19b and the surface of the support 15 is ideally maintained constant. That is, the minimum distance remains constant along the entire circumference of the outer circular rims 19a, 19b.

[0166] For example Figure 4 The description of the obtuse angles of the first rims 18a, 18b shown in FIG. Figure 5 The outer circular rims 19a, 19b are shown in FIG.

[0167] According to yet another aspect of the present disclosure, Figure 5 A valve seat assembly 6 is shown having more than one edge. Second edges 19a, 19b protrude from the seat 15 and the surface of the seat 15. It is contemplated that the second edges 19a, 19b comprise outer edges 19a, 19b. It is also contemplated that the second edges 19a, 19b are outer edges 19a, 19b.

[0168] The second edges 19a, 19b protrude from the support 15 and from the surface of the support 15 and have rotational symmetry. Preferably, the outer edges 19a, 19b and the flow control adapters 14a, 14b and the head portion of the plunger 5 have rotational symmetry. The flow control adapters 14a, 14b and the outer edges 19a, 19b can exhibit rotational symmetry about substantially the same axis. The flow control adapters 14a, 14b and the outer edges 19a, 19b can even exhibit rotational symmetry about the same axis. The plunger 5 and the outer edges 19a, 19b can even exhibit rotational symmetry about substantially the same axis. The plunger 5 and the outer edges 19a, 19b can even exhibit rotational symmetry about the same axis. These axes are advantageously defined by the linear movement of the plunger 5. These axes can also be defined by the axial movement of the plunger 5.

[0169] It is conceivable that the outer edges 19a, 19b protrude from the surface of the support 15 by a distance between 0.1 mm and 0.5 mm. That is, the outer edges 19a, 19b have ends pointing toward the gasket 12. The minimum distance between the ends of the outer edges 19a, 19b and the surface of the support 15 is between 0.1 mm and 0.5 mm. It is also conceivable that the outer edges 19a, 19b protrude from the surface of the support 15 by 0.2 mm or 0.3 mm. That is, the outer edges 19a, 19b have ends pointing toward the gasket 12. The minimum distance between the ends of the outer edges 19a, 19b and the surface of the support 15 is 0.2 mm or 0.3 mm. The further the outer edges 19a, 19b protrude from the surface of the support 15, the better the retention of the gasket 12.

[0170] The minimum distance between the circular ends of the outer edges 19a, 19b and the surface of the support 15 is preferably maintained substantially constant. That is, the minimum distance remains substantially constant along the entire circumference of the outer edges 19a, 19b. The minimum distance between the circular ends of the outer edges 19a, 19b and the surface of the support 15 is ideally maintained constant. That is, the minimum distance remains constant along the entire circumference of the outer edges 19a, 19b.

[0171] For example Figure 4 The description of the obtuse angles of the first edges 18a, 18b shown in FIG. 1 is applicable to the following examples: Figure 5 The outer edges 19a, 19b are shown in FIG.

[0172] According to yet another aspect of the present disclosure, the outer edges 19a, 19b may include outer circular edges 19a, 19b. More specifically, the outer edges 19a, 19b may be outer circular edges 19a, 19b.

[0173] The outer circular edges 19a, 19b protrude from the support 15 and / or from the surface of the support 15 and have rotational symmetry. Preferably, the outer circular edges 19a, 19b and the flow control adapters 14a, 14b and the head portion of the plunger 5 have rotational symmetry. The flow control adapters 14a, 14b and the outer circular edges 19a, 19b can exhibit rotational symmetry about substantially the same axis. The flow control adapters 14a, 14b and the outer circular edges 19a, 19b can even exhibit rotational symmetry about the same axis. The plunger 5 and the outer circular edges 19a, 19b can even exhibit rotational symmetry about substantially the same axis. The plunger 5 and the outer circular edges 19a, 19b can even exhibit rotational symmetry about the same axis. These axes are advantageously defined by the linear movement of the plunger 5. These axes can also be defined by the axial movement of the plunger 5.

[0174] It is conceivable that the outer circular edges 19a, 19b protrude from the surface of the support 15 by a distance between 0.1 mm and 0.5 mm. That is, the outer circular edges 19a, 19b have ends pointing toward the gasket 12. The minimum distance between the ends of the outer circular edges 19a, 19b and the surface of the support 15 is between 0.1 mm and 0.5 mm. It is also conceivable that the outer circular edges 19a, 19b protrude from the surface of the support 15 by 0.2 mm or 0.3 mm. That is, the outer circular edges 19a, 19b have ends pointing toward the gasket 12. The minimum distance between the ends of the outer circular edges 19a, 19b and the surface of the support 15 is 0.2 mm or 0.3 mm. As the outer circular edges 19a, 19b protrude further from the surface of the support 15, the retention of the gasket 12 is improved.

[0175] The minimum distance between the circular ends of the outer circular edges 19a, 19b and the surface of the support 15 is preferably maintained substantially constant. That is, the minimum distance remains substantially constant along the entire circumference of the outer circular edges 19a, 19b. The minimum distance between the circular ends of the outer circular edges 19a, 19b and the surface of the support 15 is ideally maintained constant. That is, the minimum distance remains constant along the entire circumference of the outer circular edges 19a, 19b.

[0176] For example Figure 4 The description of the obtuse angles of the first edges 18a, 18b shown in FIG. 1 is applicable to the following examples: Figure 5 The outer circular edges 19a, 19b are shown in FIG.

[0177] Figure 5 A valve seat assembly 6 is shown having more than one rim. Third rims 20a, 20b protrude from the support 15 and the surface of the support 15. It is contemplated that the third rims 20a, 20b comprise inner rims 20a, 20b. It is also contemplated that the third rims 20a, 20b are inner rims 20a, 20b. The third rims 20a, 20b are distinct from the second rims 19a, 19b.

[0178] The third rims 20a, 20b are closer to the axis of symmetry defined by the linear movement of the plunger 5 than the second rims 19a, 19b. The third rims 20a, 20b are also closer to the axis of symmetry defined by the axial movement of the plunger 5 than the second rims 19a, 19b.

[0179] According to one aspect of the present disclosure, the inner rims 20a, 20b protruding from the surface of the support 15 exhibit rotational symmetry. Preferably, the inner rims 20a, 20b, the flow control adapters 14a, 14b, and the head portion of the plunger 5 exhibit rotational symmetry. Ideally, the outer rims 19a, 19b, the inner rims 20a, 20b, and the head portion of the plunger 5 exhibit rotational symmetry. The flow control adapters 14a, 14b and the inner rims 20a, 20b may exhibit rotational symmetry about substantially the same axis. The flow control adapters 14a, 14b and the inner rims 20a, 20b may even exhibit rotational symmetry about the same axis. The plunger 5 and the inner rims 20a, 20b may even exhibit rotational symmetry about the same axis. The outer rims 19a, 19b and the inner rims 20a, 20b may exhibit rotational symmetry about substantially the same axis. The outer rims 19a, 19b and the inner rims 20a, 20b may even exhibit rotational symmetry about the same axes. These axes are advantageously defined by the linear movement of the plunger 5. These axes may also be defined by the axial movement of the plunger 5.

[0180] It is conceivable that the inner rims 20a, 20b protrude from the surface of the support 15 by a distance between 0.1 mm and 0.5 mm. That is, the inner rims 20a, 20b have ends pointing toward the washer 12. The minimum distance between the ends of the inner rims 20a, 20b and the surface of the support 15 is between 0.1 mm and 0.5 mm. It is also conceivable that the inner rims 20a, 20b protrude from the surface of the support 15 by 0.2 mm or 0.3 mm. That is, the inner rims 20a, 20b have ends pointing toward the washer 12. The minimum distance between the ends of the inner rims 20a, 20b and the surface of the support 15 is 0.2 mm or 0.3 mm. As the inner rims 20a, 20b protrude further from the surface of the support 15, the retention of the washer 12 is improved.

[0181] The minimum distance between the circular ends of the inner rims 20a, 20b and the surface of the support 15 is preferably maintained substantially constant. That is, the minimum distance remains substantially constant along the entire circumference of the inner rims 20a, 20b. The minimum distance between the circular ends of the inner rims 20a, 20b and the surface of the support 15 is ideally maintained constant. That is, the minimum distance remains constant along the entire circumference of the inner rims 20a, 20b.

[0182] Advantageously, the outer rims 19a, 19b and the inner rims 20a, 20b protrude approximately the same distance from the surface of the seat 15. Ideally, the outer rims 19a, 19b and the inner rims 20a, 20b protrude the same distance from the surface of the seat 15. This reduces the complexity of the valve seat assembly 6 and facilitates its manufacture.

[0183] For example Figure 4 The description of the obtuse angles of the first rims 18a, 18b shown in FIG. Figure 5 . Advantageously, the outer rims 19a, 19b and the inner rims 20a, 20b each taper at substantially the same obtuse angle. Ideally, the outer rims 19a, 19b and the inner rims 20a, 20b each taper at the same obtuse angle. This reduces the complexity of the valve seat assembly 6 and facilitates manufacture of the valve seat assembly 6.

[0184] According to another aspect of the present disclosure, the inner rims 20a, 20b may include inner circular rims 20a, 20b. More specifically, the inner rims 20a, 20b may be inner circular rims 20a, 20b. The inner circular rims 20a, 20b are different from the outer circular rims 19a, 19b.

[0185] The inner circular rims 20a, 20b protrude from the support 15 and / or from the surface of the support 15 and have rotational symmetry. Preferably, the inner circular rims 20a, 20b, the flow control adapters 14a, 14b, and the head portion of the plunger 5 have rotational symmetry. Ideally, the outer circular rims 19a, 19b, the inner circular rims 20a, 20b, and the head portion of the plunger 5 have rotational symmetry. The flow control adapters 14a, 14b and the inner circular rims 20a, 20b can exhibit rotational symmetry about substantially the same axis. The flow control adapters 14a, 14b and the inner circular rims 20a, 20b can even exhibit rotational symmetry about the same axis. The plunger 5 and the inner circular rims 20a, 20b can also exhibit rotational symmetry about substantially the same axis. The plunger 5 and the inner circular rims 20a, 20b can even exhibit rotational symmetry about the same axis. The outer circular rims 19a, 19b and the inner circular rims 20a, 20b may exhibit rotational symmetry about substantially the same axis. The outer circular rims 19a, 19b and the inner circular rims 20a, 20b may even exhibit rotational symmetry about the same axis. These axes are advantageously defined by the linear movement of the plunger 5. These axes may also be defined by the axial movement of the plunger 5.

[0186] It is conceivable that the inner circular rims 20a, 20b protrude from the surface of the support 15 by a distance between 0.1 mm and 0.5 mm. That is, the inner circular rims 20a, 20b have ends pointing toward the washer 12. The minimum distance between the ends of the inner circular rims 20a, 20b and the surface of the support 15 is between 0.1 mm and 0.5 mm. It is also conceivable that the inner circular rims 20a, 20b protrude from the surface of the support 15 by 0.2 mm or 0.3 mm. That is, the inner circular rims 20a, 20b have ends pointing toward the washer 12. The minimum distance between the ends of the inner circular rims 20a, 20b and the surface of the support 15 is 0.2 mm or 0.3 mm. As the inner circular rims 20a, 20b protrude further from the surface of the support 15, the retention of the washer 12 is improved.

[0187] The minimum distance between the circular ends of the inner circular rims 20a, 20b and the surface of the support 15 is preferably maintained substantially constant. That is, the minimum distance remains substantially constant along the entire circumference of the inner circular rims 20a, 20b. The minimum distance between the circular ends of the inner circular rims 20a, 20b and the surface of the support 15 is ideally maintained constant. That is, the minimum distance remains constant along the entire circumference of the inner circular rims 20a, 20b.

[0188] Advantageously, the outer circular rims 19a, 19b and the inner circular rims 20a, 20b protrude approximately the same distance from the surface of the seat 15. Ideally, the outer circular rims 19a, 19b and the inner circular rims 20a, 20b protrude the same distance from the surface of the seat 15. This reduces the complexity of the valve seat assembly 6 and facilitates its manufacture.

[0189] For example Figure 4 The description of the obtuse angles of the first rims 18a, 18b shown in FIG. Figure 5 . Advantageously, the outer circular rims 19a, 19b and the inner circular rims 20a, 20b each taper at substantially the same obtuse angle. Ideally, the outer circular rims 19a, 19b and the inner circular rims 20a, 20b each taper at the same obtuse angle. This reduces the complexity of the valve seat assembly 6 and facilitates manufacture of the valve seat assembly 6.

[0190] According to yet another aspect of the present disclosure, Figure 5 The valve seat assembly 6 is shown with more than one edge. Third edges 20a, 20b protrude from the support 15 and the surface of the support 15. It is contemplated that the third edges 20a, 20b comprise inner edges 20a, 20b. It is also contemplated that the third edges 20a, 20b are inner edges 20a, 20b. The third edges 20a, 20b are distinct from the second edges 19a, 19b.

[0191] The third edges 20a, 20b are closer to the axis of symmetry defined by the linear movement of the plunger 5 than the second edges 19a, 19b. The third edges 20a, 20b are also closer to the axis of symmetry defined by the axial movement of the plunger 5 than the second edges 19a, 19b.

[0192] The third edges 20a, 20b protrude from the support 15 and / or from the surface of the support 15 and exhibit rotational symmetry. Preferably, the inner edges 20a, 20b, the flow control adapters 14a, 14b, and the head portion of the plunger 5 exhibit rotational symmetry. Ideally, the outer edges 19a, 19b, the inner edges 20a, 20b, and the head portion of the plunger 5 exhibit rotational symmetry. The flow control adapters 14a, 14b and the inner edges 20a, 20b may exhibit rotational symmetry about substantially the same axis. The flow control adapters 14a, 14b and the inner edges 20a, 20b may even exhibit rotational symmetry about the same axis. The plunger 5 and the inner edges 20a, 20b may even exhibit rotational symmetry about the same axis. The outer edges 19a, 19b and the inner edges 20a, 20b may exhibit rotational symmetry about substantially the same axis. The outer edges 19a, 19b and the inner edges 20a, 20b may even exhibit rotational symmetry about the same axis. These axes are advantageously defined by the linear movement of the plunger 5. These axes may also be defined by the axial movement of the plunger 5.

[0193] It is conceivable that the inner edges 20a, 20b protrude from the surface of the support 15 by a distance between 0.1 mm and 0.5 mm. That is, the inner edges 20a, 20b have ends pointing toward the gasket 12. The minimum distance between the ends of the inner edges 20a, 20b and the surface of the support 15 is between 0.1 mm and 0.5 mm. It is also conceivable that the inner edges 20a, 20b protrude from the surface of the support 15 by 0.2 mm or 0.3 mm. That is, the inner edges 20a, 20b have ends pointing toward the gasket 12. The minimum distance between the ends of the inner edges 20a, 20b and the surface of the support 15 is 0.2 mm or 0.3 mm. As the inner edges 20a, 20b protrude further from the surface of the support 15, the retention of the gasket 12 is improved.

[0194] The minimum distance between the circular ends of the inner edges 20a, 20b and the surface of the support 15 is preferably maintained substantially constant. That is, the minimum distance remains substantially constant along the entire circumference of the inner edges 20a, 20b. The minimum distance between the circular ends of the inner edges 20a, 20b and the surface of the support 15 is ideally maintained constant. That is, the minimum distance remains constant along the entire circumference of the inner edges 20a, 20b.

[0195] Advantageously, the outer edges 19a, 19b and the inner edges 20a, 20b protrude approximately the same distance from the surface of the seat 15. Ideally, the outer edges 19a, 19b and the inner edges 20a, 20b protrude the same distance from the surface of the seat 15. This reduces the complexity of the valve seat assembly 6 and facilitates its manufacture.

[0196] For example Figure 4 The description of the obtuse angles of the first edges 18a, 18b shown in FIG. 1 is applicable to the following examples: Figure 5 . Advantageously, the outer edges 19a, 19b and the inner edges 20a, 20b each taper at substantially the same obtuse angle. Ideally, the outer edges 19a, 19b and the inner edges 20a, 20b each taper at the same obtuse angle. This reduces the complexity of the valve seat assembly 6 and facilitates manufacture of the valve seat assembly 6.

[0197] According to yet another aspect of the present disclosure, the inner edges 20a, 20b may include inner circular edges 20a, 20b. More specifically, the inner edges 20a, 20b may be inner circular edges 20a, 20b. The inner circular edges 20a, 20b are different from the outer circular edges 19a, 19b.

[0198] The inner circular edges 20a, 20b protrude from the support 15 and / or from the surface of the support 15 and have rotational symmetry. Preferably, the inner circular edges 20a, 20b, the flow control adapters 14a, 14b, and the head portion of the plunger 5 have rotational symmetry. Ideally, the outer circular edges 19a, 19b, the inner circular edges 20a, 20b, and the head portion of the plunger 5 have rotational symmetry. The flow control adapters 14a, 14b and the inner circular edges 20a, 20b can exhibit rotational symmetry about substantially the same axis. The flow control adapters 14a, 14b and the inner circular edges 20a, 20b can even exhibit rotational symmetry about the same axis. The plunger 5 and the inner circular edges 20a, 20b can also exhibit rotational symmetry about substantially the same axis. The plunger 5 and the inner circular edges 20a, 20b can even exhibit rotational symmetry about the same axis. The outer circular edges 19a, 19b and the inner circular edges 20a, 20b can exhibit rotational symmetry about substantially the same axis. The outer circular edges 19a, 19b and the inner circular edges 20a, 20b can even exhibit rotational symmetry about the same axis. These axes are advantageously defined by the linear movement of the plunger 5. These axes can also be defined by the axial movement of the plunger 5.

[0199] It is conceivable that the inner circular edges 20a, 20b protrude from the surface of the support 15 by a distance between 0.1 mm and 0.5 mm. That is, the inner circular edges 20a, 20b have ends pointing toward the gasket 12. The minimum distance between the ends of the inner circular edges 20a, 20b and the surface of the support 15 is between 0.1 mm and 0.5 mm. It is also conceivable that the inner circular edges 20a, 20b protrude from the surface of the support 15 by 0.2 mm or 0.3 mm. That is, the inner circular edges 20a, 20b have ends pointing toward the gasket 12. The minimum distance between the ends of the inner circular edges 20a, 20b and the surface of the support 15 is 0.2 mm or 0.3 mm. As the inner circular edges 20a, 20b protrude further from the surface of the support 15, the retention of the gasket 12 is improved.

[0200] The minimum distance between the circular ends of the inner circular edges 20a, 20b and the surface of the support 15 is preferably maintained substantially constant. That is, the minimum distance remains substantially constant along the entire circumference of the inner circular edges 20a, 20b. The minimum distance between the circular ends of the inner circular edges 20a, 20b and the surface of the support 15 is ideally maintained constant. That is, the minimum distance remains constant along the entire circumference of the inner circular edges 20a, 20b.

[0201] Advantageously, the outer circular edges 19a, 19b and the inner circular edges 20a, 20b protrude approximately the same distance from the surface of the seat 15. Ideally, the outer circular edges 19a, 19b and the inner circular edges 20a, 20b protrude the same distance from the surface of the seat 15. This reduces the complexity of the valve seat assembly 6 and facilitates manufacture of the valve seat assembly 6.

[0202] For example Figure 4 The description of the obtuse angles of the first edges 18a, 18b shown in FIG. 1 is applicable to the following examples: Figure 5 . Advantageously, the outer circular edges 19a, 19b and the inner circular edges 20a, 20b each taper at substantially the same obtuse angle. Ideally, the outer circular edges 19a, 19b and the inner circular edges 20a, 20b each taper at the same obtuse angle. This reduces the complexity of the valve seat assembly 6 and facilitates manufacture of the valve seat assembly 6.

[0203] As described in detail herein, the present disclosure relates to a valve (1) comprising:

[0204] an adapter (14a-14e), a first port (3), a second port (4), and a fluid path extending between the first port (3) and the second port (4);

[0205] a plunger (5) disposed in the fluid path between the first port (3) and the second port (4), the plunger (5) being selectively and linearly movable between a closed position for closing the fluid path between the first port (3) and the second port (4) and an open position for opening the fluid path between the first port (3) and the second port (4);

[0206] A valve seat assembly (6) is disposed in a fluid path between a first port (3) and a second port (4), the valve seat assembly (6) comprising:

[0207] a gasket (12) and a frame (13), the frame (13) having a support (15);

[0208] wherein the gasket (12) is different from the adapter (14a-14e) and different from the support (15), and is interposed between the adapter (14a-14e) and the support (15);

[0209] wherein the adapter (14a-14e) has a first aperture having a first diameter, and wherein the gasket (12) has a second aperture having a second diameter;

[0210] wherein the first diameter is greater than the second diameter;

[0211] wherein, in the open position, the plunger (5) is separated from the gasket (12) to enable fluid to flow through the second aperture and along the fluid path;

[0212] wherein, in the closed position, the plunger (5) abuts the gasket (12) to prevent fluid from flowing through the second aperture and along the fluid path;

[0213] wherein the support (15) includes a support surface; and

[0214] At least one first protrusion (18a, 18b; 19a, 19b; 20a, 20b) protrudes from the seat surface and embeds itself in the washer (12).

[0215] It is conceivable that the plunger (5) is disposed in the fluid path between the first port (3) and the second port (4), and the plunger (5) can be selectively and axially moved between a closed position for closing the fluid path between the first port (3) and the second port (4) and an open position for opening the fluid path between the first port (3) and the second port (4).

[0216] According to one aspect of the present disclosure, the adapter (14a-14e) comprises a flow control adapter (14a-14e). According to a particular aspect of the present disclosure, the adapter (14a-14e) is a flow control adapter (14a-14e).

[0217] In an embodiment, the valve seat assembly (6) comprises the adapter (14a-14e). In an alternative embodiment, the plunger (5) comprises the adapter (14a-14e).

[0218] It is conceivable that the gasket (12) is detachable from the adapter (14a-14e). It is also conceivable that the gasket (12) is detachable from the adapter (14a-14e). The detachment preferably occurs non-destructively. That is, the mechanical structure of the valve is preserved.

[0219] The first aperture advantageously comprises a first pore. The first aperture is ideally a first pore. The second aperture advantageously comprises a second pore. The second aperture is ideally a second pore.

[0220] In an embodiment, the first diameter is larger than the second diameter. In a related embodiment, the first diameter is wider than the second diameter. As a non-limiting example, the first diameter can be at least 0.5 mm wider than the second diameter. As another non-limiting example, the first diameter can be at least 1 mm wider than the second diameter. These widths are advantageously widths in a transverse direction. The transverse direction is defined by (the movement of) the plunger (5), and the transverse direction is perpendicular to (the linear and / or axial movement of) the plunger (5).

[0221] The present disclosure also relates to any one of the above valves (1), wherein at least one first protrusion (18a, 18b; 19a, 19b; 20a, 20b) comprises at least one of the following:

[0222] - a first edge (18a, 18b; 19a, 19b; 20a, 20b),

[0223] - a first annular edge (18a, 18b; 19a, 19b; 20a, 20b),

[0224] - a first circular edge (18a, 18b; 19a, 19b; 20a, 20b),

[0225] - a first wheel rim (18a, 18b; 19a, 19b; 20a, 20b),

[0226] - a first annular rim (18a, 18b; 19a, 19b; 20a, 20b),

[0227] - a first circular rim (18a, 18b; 19a, 19b; 20a, 20b).

[0228] The present disclosure also relates to any one of the above valves (1), wherein at least one first protrusion (18a, 18b; 19a, 19b; 20a, 20b) is selected from:

[0229] - a first edge (18a, 18b; 19a, 19b; 20a, 20b),

[0230] - a first annular edge (18a, 18b; 19a, 19b; 20a, 20b),

[0231] - a first circular edge (18a, 18b; 19a, 19b; 20a, 20b),

[0232] - a first wheel rim (18a, 18b; 19a, 19b; 20a, 20b),

[0233] - a first annular rim (18a, 18b; 19a, 19b; 20a, 20b),

[0234] - a first circular rim (18a, 18b; 19a, 19b; 20a, 20b).

[0235] The present disclosure also relates to any one of the above valves (1), wherein at least one first protrusion (18a, 18b; 19a, 19b; 20a, 20b) protrudes from the surface of the seat (15) by at least 0.2 mm.

[0236] The present disclosure also relates to any one of the above valves (1), wherein at least one first protrusion (18a, 18b; 19a, 19b; 20a, 20b) protrudes from the surface of the seat (15) by at least 0.3 mm.

[0237] The present disclosure also relates to any one of the above valves (1), wherein at least one first protrusion (18a, 18b; 19a, 19b; 20a, 20b) protrudes from the surface of the seat (15) by at least 0.5 mm.

[0238] The present disclosure also relates to any one of the above valves (1), wherein at least one first projection (18a, 18b; 19a, 19b; 20a, 20b) is formed in the surface of the seat (15).

[0239] The present disclosure also relates to any one of the above valves (1), wherein at least one first projection (18a, 18b; 19a, 19b; 20a, 20b) comprises an end pointing towards the gasket (12);

[0240] wherein at least one first protrusion (18a, 18b; 19a, 19b; 20a, 20b) tapers at an obtuse angle toward an end thereof; and

[0241] The obtuse angle is between 105° and 150°.

[0242] The present disclosure also relates to any one of the above valves (1), wherein at least one first projection (18a, 18b; 19a, 19b; 20a, 20b) comprises an end pointing towards the gasket (12);

[0243] wherein at least one first protrusion (18a, 18b; 19a, 19b; 20a, 20b) tapers at an obtuse angle toward an end thereof; and

[0244] The obtuse angle is between 115° and 130°.

[0245] The present disclosure also relates to any one of the above valves (1), wherein at least one first projection (18a, 18b; 19a, 19b; 20a, 20b) comprises a rounded end directed towards the gasket (12);

[0246] wherein at least one first projection (18a, 18b; 19a, 19b; 20a, 20b) tapers at an obtuse angle toward its rounded end; and

[0247] The obtuse angle is between 105° and 150°.

[0248] The present disclosure also relates to any one of the above valves (1), wherein at least one first projection (18a, 18b; 19a, 19b; 20a, 20b) comprises a rounded end directed towards the gasket (12);

[0249] wherein at least one first projection (18a, 18b; 19a, 19b; 20a, 20b) tapers at an obtuse angle toward its rounded end; and

[0250] The obtuse angle is between 115° and 125°.

[0251] The present disclosure also relates to any of the above valves (1), wherein the surface of the seat (15) comprises a first portion (16a, 16b; 17a, 17b), and wherein the surface of the gasket (12) comprises a first portion;

[0252] wherein a first portion (16a, 16b; 17a, 17b) of the surface of the seat (15) and a first portion of the surface of the washer (12) are each substantially perpendicular to an axis defined by the linear movement of the plunger (5); and

[0253] wherein a first portion (16a, 16b; 17a, 17b) of the surface of the seat (15) abuts a first portion of the surface of the gasket (12).

[0254] The present disclosure also relates to any of the above valves (1), wherein the surface of the seat (15) comprises a first portion (16a, 16b; 17a, 17b), and wherein the surface of the gasket (12) comprises a first portion;

[0255] wherein a first portion (16a, 16b; 17a, 17b) of the surface of the seat (15) and a first portion of the surface of the gasket (12) are each perpendicular to an axis defined by the linear movement of the plunger (5); and

[0256] wherein a first portion (16a, 16b; 17a, 17b) of the surface of the seat (15) abuts a first portion of the surface of the gasket (12).

[0257] The present disclosure also relates to any of the above valves (1), wherein the surface of the seat (15) comprises a first portion (16a, 16b; 17a, 17b), and wherein the surface of the gasket (12) comprises a first portion;

[0258] wherein a first portion (16a, 16b; 17a, 17b) of the surface of the seat (15) and a first portion of the surface of the washer (12) are each substantially perpendicular to an axis defined by the linear movement of the plunger (5); and

[0259] wherein a first portion (16a, 16b; 17a, 17b) of the surface of the seat (15) abuts a first portion of the surface of the gasket (12).

[0260] The present disclosure also relates to any of the above valves (1), wherein the surface of the seat (15) comprises a first portion (16a, 16b; 17a, 17b), and wherein the surface of the gasket (12) comprises a first portion;

[0261] wherein a first portion (16a, 16b; 17a, 17b) of the surface of the seat (15) and a first portion of the surface of the gasket (12) are each perpendicular to an axis defined by the linear movement of the plunger (5); and

[0262] wherein a first portion (16a, 16b; 17a, 17b) of the surface of the seat (15) abuts a first portion of the surface of the gasket (12).

[0263] The aforementioned first portion of the surface may also be perpendicular or substantially perpendicular to the axis defined by the axial movement of the plunger (5).

[0264] The present disclosure also relates to any of the above valves (1), comprising a first portion (16a, 16b; 17a, 17b) of a surface of a seat (15) and a first portion of a surface of a gasket (12), wherein the first portion (16a, 16b; 17a, 17b) of the surface of the seat (15) is flat; and

[0265] A first portion of the surface of the gasket (12) is flat.

[0266] The present disclosure also relates to any of the above valves (1), comprising a first portion (16a, 16b; 17a, 17b) of the surface of the seat (15) and a first portion of the surface of the gasket (12),

[0267] wherein a first portion (16a, 16b; 17a, 17b) of the surface of the support (15) is smooth; and

[0268] A first portion of the surface of the gasket (12) is smooth.

[0269] The present disclosure also relates to any of the above-mentioned valves (1), comprising a first portion (16a, 16b; 17a, 17b) of the surface of the seat (15), wherein the first portion (16a, 16b; 17a, 17b) of the surface of the seat (15) is substantially parallel to the first portion of the surface of the gasket (12).

[0270] The present disclosure also relates to any of the above-mentioned valves (1), comprising a first portion (16a, 16b; 17a, 17b) of the surface of the seat (15), wherein the first portion (16a, 16b; 17a, 17b) of the surface of the seat (15) is parallel to the first portion of the surface of the gasket (12).

[0271] The present disclosure also relates to any of the above valves (1), wherein the surface of the seat (15) comprises a second portion (17a, 17b; 16a, 16b), and wherein the surface of the gasket (12) comprises a second portion;

[0272] wherein the second portion (17a, 17b; 16a, 16b) of the surface of the support (15) is different from the first portion (16a, 16b; 17a, 17b) of the surface of the support (15);

[0273] wherein the second portion of the surface of the gasket (12) is different from the first portion of the surface of the gasket (12);

[0274] wherein the second portion (17a, 17b; 16a, 16b) of the surface of the seat (15) and the second portion of the surface of the washer (12) are each substantially perpendicular to the axis defined by the linear movement of the plunger (5); and

[0275] wherein a second portion (17a, 17b; 16a, 16b) of the surface of the seat (15) abuts a second portion of the surface of the washer (12).

[0276] The present disclosure also relates to any of the above valves (1), wherein the surface of the seat (15) comprises a second portion (17a, 17b; 16a, 16b), and wherein the surface of the gasket (12) comprises a second portion;

[0277] wherein the second portion (17a, 17b; 16a, 16b) of the surface of the support (15) is different from the first portion (16a, 16b; 17a, 17b) of the surface of the support (15);

[0278] wherein the second portion of the surface of the gasket (12) is different from the first portion of the surface of the gasket (12);

[0279] wherein the second portion (17a, 17b; 16a, 16b) of the surface of the seat (15) and the second portion of the surface of the washer (12) are each perpendicular to the axis defined by the linear movement of the plunger (5); and

[0280] wherein a second portion (17a, 17b; 16a, 16b) of the surface of the seat (15) abuts a second portion of the surface of the washer (12).

[0281] The aforementioned second portion of the surface may also be perpendicular or substantially perpendicular to the axis defined by the axial movement of the plunger (5).

[0282] The present disclosure also relates to any of the above valves (1), comprising a second portion (17a, 17b; 16a, 16b) of the surface of the seat (15) and a second portion of the surface of the gasket (12),

[0283] wherein the second portion (17a, 17b; 16a, 16b) of the surface of the support (15) is flat; and

[0284] A second portion of the surface of the gasket (12) is flat.

[0285] The present disclosure also relates to any of the above valves (1), comprising a second portion (17a, 17b; 16a, 16b) of the surface of the seat (15) and a second portion of the surface of the gasket (12),

[0286] wherein the second portion (17a, 17b; 16a, 16b) of the surface of the support (15) is smooth; and

[0287] A second portion of the surface of the gasket (12) is smooth.

[0288] The present disclosure also relates to any of the above-mentioned valves (1), comprising a second portion (17a, 17b; 16a, 16b) of the surface of the seat (15), wherein the second portion (17a, 17b; 16a, 16b) of the surface of the seat (15) is substantially parallel to the second portion of the surface of the gasket (12).

[0289] The present disclosure also relates to any of the above-mentioned valves (1), comprising a second portion (17a, 17b; 16a, 16b) of the surface of the seat (15), wherein the second portion (17a, 17b; 16a, 16b) of the surface of the seat (15) is parallel to the second portion of the surface of the gasket (12).

[0290] The present disclosure also relates to any one of the above-mentioned valves (1), comprising a first portion (16a, 16b; 17a, 17b) of the surface of the support (15) and a second portion (17a, 17b; 16a, 16b) of the surface of the support (15), wherein at least one first protrusion (18a, 18b; 19a, 19b; 20a, 20b) is interposed between the first portion (16a, 16b; 17a, 17b) of the surface of the support (15) and the second portion (17a, 17b; 16a, 16b) of the surface of the support (15).

[0291] The present disclosure also relates to any one of the above valves (1), comprising a first portion of a surface of a gasket (12) and a second portion of a surface of the gasket (12),

[0292] At least one first protrusion (18a, 18b; 19a, 19b; 20a, 20b) is interposed between a first portion of the surface of the gasket (12) and a second portion of the surface of the gasket (12).

[0293] The present disclosure also relates to any one of the above valves (1), comprising a first portion (16a, 16b; 17a, 17b) of the surface of the seat (15) and a second portion (17a, 17b; 16a, 16b) of the surface of the seat (15), wherein

[0294] - at least one first projection (18a, 18b; 19a, 19b; 20a, 20b) and

[0295] - a first portion (16a, 16b; 17a, 17b) of the surface of the support (15) and

[0296] - a second portion (17a, 17b; 16a, 16b) of the surface of the support (15)

[0297] There is rotational symmetry about an axis defined by the linear movement of the plunger (5).

[0298] The present disclosure also relates to any one of the above valves (1), comprising a first portion (16a, 16b; 17a, 17b) of the surface of the seat (15) and a second portion (17a, 17b; 16a, 16b) of the surface of the seat (15), wherein

[0299] - at least one first projection (18a, 18b; 19a, 19b; 20a, 20b) and

[0300] - a first portion (16a, 16b; 17a, 17b) of the surface of the support (15) and

[0301] - a second portion (17a, 17b; 16a, 16b) of the surface of the support (15) and

[0302] - a first portion of the surface of the gasket (12) and

[0303] - a second portion of the surface of the gasket (12)

[0304] There is rotational symmetry about an axis defined by the linear movement of the plunger (5).

[0305] The present disclosure also relates to any one of the above valves (1), comprising a first portion (16a, 16b; 17a, 17b) of the surface of the seat (15) and a second portion (17a, 17b; 16a, 16b) of the surface of the seat (15), wherein

[0306] - a first portion (16a, 16b; 17a, 17b) of the surface of the support (15) and

[0307] - a first portion of the surface of the gasket (12) and

[0308] - a second portion (17a, 17b; 16a, 16b) of the surface of the support (15) and

[0309] - a second portion of the surface of the gasket (12)

[0310] Roughly parallel to each other.

[0311] The present disclosure also relates to any one of the above valves (1), comprising a first portion (16a, 16b; 17a, 17b) of the surface of the seat (15) and a second portion (17a, 17b; 16a, 16b) of the surface of the seat (15), wherein

[0312] - a first portion (16a, 16b; 17a, 17b) of the surface of the support (15) and

[0313] - a first portion of the surface of the gasket (12) and

[0314] - a second portion (17a, 17b; 16a, 16b) of the surface of the support (15) and

[0315] - a second portion of the surface of the gasket (12)

[0316] parallel to each other.

[0317] The present disclosure also relates to any of the above valves (1), wherein at least one second projection (19a, 19b; 20a, 20b) projects from the seat surface and embeds itself in the gasket (12); and

[0318] At least one second protrusion (19a, 19b; 20a, 20b) is different from at least one first protrusion (18a, 18b; 19a, 19b; 20a, 20b).

[0319] The present disclosure also relates to any one of the above valves (1), wherein at least one second protrusion (19a, 19b; 20a, 20b) is selected from:

[0320] - a second edge (19a, 19b; 20a, 20b),

[0321] - a second annular edge (19a, 19b; 20a, 20b),

[0322] - a second circular edge (19a, 19b; 20a, 20b),

[0323] - a second wheel rim (19a, 19b; 20a, 20b),

[0324] - a second annular rim (19a, 19b; 20a, 20b),

[0325] - a second circular rim (19a, 19b; 20a, 20b).

[0326] It is conceivable that at least one second protrusion (19a, 19b; 20a, 20b) is formed in the surface of the support (15). It is also conceivable that at least one second protrusion (19a, 19b; 20a, 20b) protrudes from the surface of the support (15) by at least 0.2 mm.

[0327] It is emphasized that the foregoing relates only to specific embodiments of the present disclosure. Many changes may be made without departing from the scope of the present disclosure as defined by the following claims. It should also be understood that the present disclosure is not limited to the embodiments shown. Various modifications may be made within the scope of the following claims.

[0328] Reference numerals

[0329] 1 valve

[0330] 2 Housing

[0331] 3 ports

[0332] 4 ports

[0333] 5 Plunger

[0334] 6 Valve seat assembly

[0335] 7 Armature

[0336] 8 strokes

[0337] 9a, 9b solenoids

[0338] Room 10

[0339] 11 Elastic components

[0340] 12 washers

[0341] 13 Framework

[0342] 14a–14e Adapters, such as flow control adapters

[0343] 15 Support

[0344] 16a, 16b Surfaces, such as support surfaces

[0345] 17a, 17b Surface, such as support surface

[0346] 18a, 18b projection, edge, rim

[0347] 19a, 19b projection, edge, rim

[0348] 20a, 20b projection, edge, rim

Claims

1. A valve (1), comprising: an adapter (14a-14e), a first port (3), a second port (4), and a fluid path extending between the first port (3) and the second port (4); a plunger (5) disposed in the fluid path between the first port (3) and the second port (4), the plunger (5) being selectively and linearly movable between a closed position for closing the fluid path between the first port (3) and the second port (4) and an open position for opening the fluid path between the first port (3) and the second port (4); A valve seat assembly (6) disposed in the fluid path between the first port (3) and the second port (4), the valve seat assembly (6) comprising: a gasket (12) and a frame (13), said frame (13) having a support (15); wherein the gasket (12) is different from the adapter (14a-14e) and different from the support (15), and is interposed between the adapter (14a-14e) and the support (15); wherein the adapter (14a-14e) has a first aperture having a first diameter, and wherein the gasket (12) has a second aperture having a second diameter; wherein the first diameter is greater than the second diameter; wherein, in the open position, the plunger (5) is separated from the gasket (12) to enable fluid to flow through the second aperture and along the fluid path; wherein, in the closed position, the plunger (5) abuts the gasket (12) to prevent the fluid from flowing through the second aperture and along the fluid path; wherein the support (15) comprises a support surface; and Therein, at least one first protrusion (18a, 18b; 19a, 19b; 20a, 20b) protrudes from the seat surface and embeds itself in the gasket (12).

2. The valve (1) according to claim 1, wherein The at least one first protrusion (18a, 18b; 19a, 19b; 20a, 20b) includes at least one of the following: - a first edge (18a, 18b; 19a, 19b; 20a, 20b), - a first annular edge (18a, 18b; 19a, 19b; 20a, 20b), - a first circular edge (18a, 18b; 19a, 19b; 20a, 20b), - a first wheel rim (18a, 18b; 19a, 19b; 20a, 20b), - a first annular rim (18a, 18b; 19a, 19b; 20a, 20b), - a first circular rim (18a, 18b; 19a, 19b; 20a, 20b).

3. The valve (1) according to any one of claims 1 to 2, wherein: The at least one first protrusion (18a, 18b; 19a, 19b; 20a, 20b) protrudes from the surface of the support (15) by at least 0.2 mm.

4. The valve (1) according to any one of claims 1 to 3, wherein The at least one first protrusion (18a, 18b; 19a, 19b; 20a, 20b) is formed in the surface of the support (15).

5. The valve (1) according to any one of claims 1 to 4, wherein The at least one first projection (18a, 18b; 19a, 19b; 20a, 20b) comprises an end pointing towards the gasket (12); wherein the at least one first protrusion (18a, 18b; 19a, 19b; 20a, 20b) tapers toward its end at an obtuse angle; and Wherein, the obtuse angle is between 105° and 150°.

6. The valve (1) according to any one of claims 1 to 5, wherein The surface of the support (15) includes a first portion (16a, 16b; 17a, 17b), and wherein the surface of the gasket (12) includes a first portion; wherein a first portion (16a, 16b; 17a, 17b) of the surface of the seat (15) and a first portion of the surface of the washer (12) are each substantially perpendicular to an axis defined by the linear movement of the plunger (5); and wherein a first portion (16a, 16b; 17a, 17b) of the surface of the seat (15) abuts a first portion of the surface of the gasket (12).

7. The valve (1) according to claim 6, wherein A first portion (16a, 16b; 17a, 17b) of the surface of the support (15) is flat; and Wherein, a first portion of the surface of the gasket (12) is flat.

8. The valve (1) according to any one of claims 6 to 7, wherein A first portion (16a, 16b; 17a, 17b) of the surface of the seat (15) is substantially parallel to a first portion of the surface of the gasket (12).

9. The valve (1) according to any one of claims 1 to 8, wherein The surface of the support (15) includes a second portion (17a, 17b; 16a, 16b), and wherein the surface of the gasket (12) includes the second portion; wherein the second portion (17a, 17b; 16a, 16b) of the surface of the support (15) is different from the first portion (16a, 16b; 17a, 17b) of the surface of the support (15); wherein the second portion of the surface of the gasket (12) is different from the first portion of the surface of the gasket (12); wherein the second portion (17a, 17b; 16a, 16b) of the surface of the seat (15) and the second portion of the surface of the washer (12) are each substantially perpendicular to the axis defined by the linear movement of the plunger (5); and wherein a second portion (17a, 17b; 16a, 16b) of the surface of the seat (15) abuts a second portion of the surface of the gasket (12).

10. The valve (1) according to claim 9, wherein The second portion (17a, 17b; 16a, 16b) of the surface of the support (15) is flat; and Wherein, the second portion of the surface of the gasket (12) is flat.

11. The valve (1) according to any one of claims 9 to 10, wherein A second portion (17a, 17b; 16a, 16b) of the surface of the seat (15) is substantially parallel to a second portion of the surface of the washer (12).

12. Valve (1) according to claims 6 and 9, wherein The at least one first protrusion (18a, 18b; 19a, 19b; 20a, 20b) is interposed between a first portion (16a, 16b; 17a, 17b) of the surface of the support (15) and a second portion (17a, 17b; 16a, 16b) of the surface of the support (15).

13. Valve (1) according to claims 6 and 9, wherein - the at least one first projection (18a, 18b; 19a, 19b; 20a, 20b) and - a first portion (16a, 16b; 17a, 17b) of the surface of the support (15) and - a second portion (17a, 17b; 16a, 16b) of the surface of the support (15) There is rotational symmetry about an axis defined by the linear movement of the plunger (5).

14. Valve (1) according to claims 6 and 9, wherein - a first portion (16a, 16b; 17a, 17b) of the surface of the support (15) and - a first portion of the surface of the gasket (12) and - a second portion (17a, 17b; 16a, 16b) of the surface of the support (15) and - a second portion of the surface of the gasket (12) Roughly parallel to each other.

15. The valve (1) according to any one of claims 1 to 14, wherein at least one second projection (19a, 19b; 20a, 20b) protruding from the seat surface and embedding itself in the gasket (12); and The at least one second protrusion (19a, 19b; 20a, 20b) is different from the at least one first protrusion (18a, 18b; 19a, 19b; 20a, 20b).

Images