Valve for cooling system

Abstract

A valve for a cooling system. A valve (1) comprising: a first port (3), a second port (4) and a fluid path extending between the first port (3) and the second port (4); a valve member (5) located in the fluid path between the first port (3) and the second port (4), the valve member (5) being movable between a closed position closing the fluid path between the first port (3) and the second port (4) and an open position opening the fluid path between the first port (3) and the second port (4); a valve seat assembly (6) in the fluid path between the first port (3) and the second port (4), the assembly (6) comprising: a gasket (12), a frame (13), adapters (14a-14e); wherein the gasket (12) is interposed between the adapter (14a-14e) and a portion of the frame (13).

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 consumer devices 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 of pipe systems are known. The pipe system distributes a medium to various consumer devices throughout the building. The medium typically originates from a common source.

[0003] The pipe system may be or include a closed loop. The closed loop includes one or more supply pipes that connect the common source to each of the consumer devices. The closed loop also includes one or more return pipes that connect each consumer device back to the common source.

[0004] The consumer devices preferably include heat exchangers. Desirably, the consumer devices are heat exchangers. More specifically, the consumer devices may include cold exchange systems. The consumer devices may even be cold exchange systems.

[0005] The pipe system may also be or include an open loop. The open loop includes one or more supply pipes that connect the common source to each of the consumer devices. In contrast to the closed loop, there are no return pipes that connect each consumer device back to the common source.

[0006] The pipe system may still be a combination of a closed loop and an open loop.

[0007] These systems may include valves, such as control valves with adjustable orifice systems, for controlling the flow of the medium to the respective consumer devices. The position of the adjustable orifices of the adjustable orifice system determines the amount of medium passing through the consumer device per unit of time. In cold exchange applications, this means that the position of the orifices determines the amount of cooling delivered from the heat exchanger to an adjacent structure. The adjacent structure preferably includes adjacent rooms of a building. Desirably, the adjacent space is adjacent rooms of a building. The adjacent structure may also include an adjacent appliance or its space. The adjacent structure may still be an adjacent appliance or its space.

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

[0009] When the adjustable orifice of the valve is in the open position, the adjustable orifice functions to enable flow to pass through the valve. When the adjustable orifice of the valve is in the closed position, the adjustable orifice functions to block the flow through the valve. In some applications, it is desirable for the adjustable orifice to be tightly closed when in the closed position. In other words, at the closed position of the adjustable orifice, the flow rate through the valve will be zero.

[0010] The adjustable orifice of the valve of the cooling system is a mechanical part and is thus susceptible to mechanical wear. It is desirable that parts such as the valve element and the valve seat of the adjustable orifice do not leak even after many valve cycles. It is also desirable that these parts of the adjustable orifice do not leak after several years of use.

[0011] Patent US6435207B1 was issued on August 20, 2022. US6435207B1 relates to a flow regulating fitting. Patent US6435207B1 claims a priority date of December 21, 1996.

[0012] A control system for a pipe system is known from US6435207B1. Patent US6435207B1 describes a flow regulating control valve for setting and measuring the volumetric flow in a pipe. The flow regulating control valve includes a shut-off member arranged in a flow chamber for setting a desired flow state. A sensor is arranged in or adjacent to the flow chamber for sensing a value representing the flow through the flow chamber.

[0013] The flow regulating control valve further includes an evaluation unit. The evaluation unit determines the flow based on the signal recorded by the sensor and based on characteristic values of the control valve. These characteristic values are stored in an electronic data memory at the sensor and are valve-specific. The shut-off member of the flow regulating control valve is used to manually adjust the flow rate through a section of the pipe system. The flow rate is adjusted until the desired flow rate is indicated by the evaluation unit.

[0014] Patent application WO98 / 25086A1 was filed on December 4, 1997. The application was published on June 11, 1998. It claims a priority date of December 4, 1996. WO98 / 25086A1 discloses a regulating fluid control device for a fluid-based heating and cooling system for measuring an environment.

[0015] The control device includes a body, a supply port, a return port, and a valve located between these ports. The valve is connected to an actuator. The actuator and the valve respond to inputs from sensors and a controller. Thereby, the flow of the medium through the valve is restricted, and this restriction depends on the conditions in the measurement environment. The control device is provided with a valve controller and an actuator to position the valve and thereby regulate the flow through the valve. A flow sensor is associated with the valve and records the flow rate of the medium at a certain position in the system. The flow sensor provides a signal to the valve controller indicating the flow rate. The flow sensor and the valve controller maintain the required flow rate through the system based on what the sensor records. Thereby, the system promotes the desired environmental conditions in the space.

[0016] 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 in the fluid path between the inlet port and the outlet port. The adjustable orifice system corresponds to a globe valve and includes an adjustable orifice and an armature. The current through the solenoid causes the movement of the armature and the adjustable orifice. The solenoid is directly immersed in the refrigerant.

[0017] Patent US5419365A was authorized on May 30, 1995 and relates to a pressure regulator for water injection. US5419365A discloses a valve having a replaceable cartridge. An adapter fitting secures the replaceable cartridge to the body of the valve. The cartridge is also provided with a diffuser at its outer end. The plunger of the valve engages the valve element of the replaceable cartridge.

[0018] Patent US11835145B2 was issued on December 5, 2023. US11835145B2 claims a priority date of April 2, 2019 and is assigned to Zhejiang Sanhua Climate and Appliance Controls Group. Patent US11835145B2 relates to an electric valve.

[0019] Zhejiang Sanhua Climate and Appliance Controls Group Co., Ltd. (Shaoxing, Zhejiang) filed patent application US2020 / 347952A1 on April 19, 2018. The application was published on November 5, 2020. Claims a priority date of October 27, 2017. US2020 / 347952A1 relates to an electric valve.

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

[0021] The adjustable orifice of the valve according to the present disclosure includes a valve member in the form of a plunger. The adjustable orifice further includes a valve seat assembly having a valve seat in the form of a washer. The plunger cooperates with the washer to close and open the valve. More specifically, the plunger in the closed position abuts the washer. In the open position, the plunger is separated from the washer.

[0022] The distal end of the plunger has the shape of a container with a head portion pointing towards the washer. An edge is provided at the end of the head. In the closed position, this edge abuts the washer, thereby closing the valve. The shape of the plunger enables well-defined closing and opening characteristics to be achieved.

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

[0024] To obtain a more general solution, an adapter such as a flow control adapter is employed. The adapter is part of the valve seat assembly. That is, different adapters can be used in valves that are otherwise identical.

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

[0026] Similar to the washer, the adapter provides holes and / or orifices to enable fluid to flow between the ports of the valve. The fluid can be a refrigerant fluid. It can be liquid and / or gaseous. The fluid may also be superheated.

[0027] The adapter provides an inner surface surrounding the holes and / or orifices of the adapter. In operation, the plunger moves linearly along the inner surface of the adapter, thereby opening and / or restricting the flow of fluid. More specifically, the outer surface of the plunger moves along the inner surface of the flow control adapter to adjust the flow of fluid.

[0028] One or more depressions can be located along the inner surface of the flow control adapter. When the valve is in the open position, the one or more depressions increase the fluid flow. For this purpose, the fluid flows laterally along the distal end of the plunger and into the first end of the one or more depressions.

[0029] Then, the fluid will flow through the one or more depressions towards the second end of the one or more depressions. The second end is different from the first end. The second end points towards the washer, while the first end points towards the linear actuator of the valve.

[0030] When the fluid leaves the one or more depressions, it will flow towards the washer and subsequently towards the second port of the valve.

[0031] The valve can be used in more than one direction. Fluid can flow from the second port of the valve to the gasket and then to the flow control adapter. That is, the fluid enters the one or more recesses at the second end of the one or more recesses. The fluid will flow through the one or more recesses and will exit the one or more recesses at its first end. Eventually, the fluid will flow to the linear actuator and to the first port of the valve.

[0032] Various symmetric or asymmetric arrangements of the one or more recesses of the adapter can be selected to accommodate the valve. Thus, the valve can be adjusted according to the nuances of its application in the refrigerant circuit. As a non-limiting example, the valve can be used as an expansion valve in a refrigerant circuit. Description of the Drawings

[0033] Based on the following detailed description of the disclosed non-limiting embodiments, various features will become apparent to those skilled in the art. The accompanying drawings of the detailed description can be briefly described as follows:

[0034] Figure 1 is a schematic diagram of a valve, such as a valve for a cooling circuit.

[0035] Figure 2 depicts Figure 1 details of the valve seat assembly of the valve shown in

[0036] Figure 3 shows a top view of the flow control adapter.

[0037] Figure 4 illustrates a cross-sectional view of the same flow control adapter.

[0038] Figure 5 illustrates another cross-sectional view of the same flow control adapter.

[0039] Figure 6 shows a top view of another flow control adapter, which is different from the flow control adapter of Figure 3

[0040] Figure 7 shows a top view of yet another flow control adapter, in which the recesses and / or openings and / or notches are unevenly distributed. Detailed Description

[0041] Figure 1 Shows the various components of the valve 1 of the present disclosure. The valve 1 is advantageously or includes an expansion valve. But more advantageously, the valve 1 is or includes an electronic expansion valve. The valve 1 can be installed in a refrigeration vapor circuit. The valve 1 according to at least one embodiment is advantageously part of a refrigeration vapor circuit.

[0042] Valve 1 includes a housing 2. The valve housing 2 has sides that define a first port 3 and a second port 4. In one embodiment, the first port 3 includes a first conduit. It is also contemplated that the second port 4 includes a second conduit. According to one aspect of the present disclosure, the first port 3 is an inlet port and the second port 4 is an outlet port. According to another aspect of the present disclosure, the first port 3 is an outlet port and the second port 4 is an inlet port.

[0043] It is contemplated that the valve body is or includes the housing 2. In one embodiment, the housing 2 includes a metallic material, such as steel, in particular austenitic steel (stainless steel) and / or ferritic steel. In an alternative embodiment, the housing 2 includes aluminum (alloy) or bronze or brass. In yet another alternative embodiment, the housing 2 includes a polymeric material. According to one aspect, the housing 2 is manufactured using an additive manufacturing technique such as three-dimensional printing. In a particular embodiment, the manufacture of the housing 2 may involve selective laser sintering. It is also contemplated that the housing 2 includes a grey cast material.

[0044] The first port 3 and the second port 4 are in fluid communication with each other to enable fluid to flow through the valve 1. In a preferred embodiment, the fluid includes a refrigerant. As a non-limiting example, the fluid may be an R32, R134a, R290, R410A, R450A, R452A, R513A, R454C, R1234yf or R1234ze(E) refrigerant. 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.

[0045] A fluid path extends between the first port 3 and the second port 4. A plunger 5 is located within this fluid path. The plunger 5 is linearly movable. The plunger 5 is also axially movable. The plunger 5 cooperates with a valve seat assembly 6. The plunger 5 thereby changes and restricts the flow rate of fluid through the valve 1.

[0046] The plunger 5 includes a head portion. This head portion projects from the plunger 5. Desirably, the head portion projects from the plunger 5 in the direction of the valve seat assembly 6. According to one aspect, the plunger 5 includes a body portion. The head portion projects from the body portion of the plunger 5. Desirably, the head portion projects from the body portion of the plunger 5 in the direction of the valve seat assembly 6. The head portion of the plunger 5 and the body portion of the plunger 5 may be integral.

[0047] According to one aspect, the plunger 5 includes a container portion. The head portion projects from the container portion of the plunger 5. Desirably, the head portion projects from the container portion of the plunger 5 in the direction of the valve seat assembly 6. The container portion of the plunger 5 and the body portion of the plunger 5 may be integral.

[0048] The plunger 5 includes an end portion pointing towards the valve seat assembly 6. This end portion of the plunger 5 may have the shape of a container and / or the shape of an inverted bowl. The shape of this end portion of the plunger 5 may be such that the opening of the container points towards the valve seat assembly 6.

[0049] Advantageously, the head portion includes an end portion pointing towards the valve seat assembly 6. Desirably, the head portion is the end portion pointing towards the valve seat assembly 6. This end portion of the plunger 5 and / or this end portion of the head portion may include a circular edge pointing towards the valve seat assembly 6. This edge may be a sharp edge with an acute angle. That is to say, this edge tapers towards the valve seat assembly 6, and this taper defines an acute angle. As an example, this acute angle may be less than twenty degrees or less than ten degrees or even less than five degrees.

[0050] The edge at the end portion of the plunger 5 is preferably or includes a rim. The edge at the end portion of the plunger 5 follows a closed continuous line. The edge at the end portion of the plunger 5 may also follow a closed continuous circle.

[0051] Figure 1 The valve seat assembly 6, which is part of the second port 4, is shown. A person skilled in the art who has studied the embodiments disclosed herein understands that the first port 3 may also include the valve seat assembly 6. This person skilled in the art also understands that the assembly 6 can be separated from the first port 3 and can be separated from the second port 4.

[0052] In Figure 1 the embodiment shown, the plunger 5 can be linearly moved by the linear movement of the armature 7. The axial direction is defined by the linear movement of the plunger 5. That is to say, the plunger 5 can be axially moved by the axial movement of the armature 7. The armature 7 can be mechanically connected to the plunger 5 via a rod 8. It is also contemplated that the armature 7 is directly connected to the plunger 5. It is also contemplated that the armature 7 and the plunger 5 are integral.

[0053] According to one aspect of the present disclosure, the armature 7, the rod 8 and the plunger 5 are integral. That is to say, both the rod 8 and the plunger 5 are integral parts of the armature 7. Similarly, the armature 7 and the rod 8 are integral with the plunger 5.

[0054] 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 one embodiment, a hinge angle allowing the plunger 5 to rotate by 0.1 degree or 0.2 degree or even 0.5 degree is permitted. The limited amount of articulation of the plunger 5 relative to the armature 7 improves the alignment of this arrangement.

[0055] At least a part of the armature 7 can be surrounded by solenoids 9a, 9b. When a current is applied, the solenoids 9a, 9b generate a magnetic flux. This magnetic flux acts on the armature 7, thereby displacing the armature 7.

[0056] Figure 1Shows a valve 1 with an electromagnetic actuator. It is contemplated that other actuators, such as hydraulic or pneumatic actuators, may be used to actuate the rod 8 and the plunger 5. The valve 1 may also be actuated by a magnetic piston pump. This list of actuators is not exhaustive.

[0057] A tubular portion such as a can does not need to surround the armature 7 and / or the 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 an outer surface. In one embodiment, a portion of the outer surface of the solenoids 9a, 9b directly faces the armature 7. In another embodiment, the outer surface of the solenoids 9a, 9b directly faces the armature 7.

[0058] The solenoids 9a, 9b and the armature 7 are arranged in the same chamber 10 within the housing 2. The chamber 10 is preferably filled with a liquid and / or gaseous fluid. As a non-limiting example, the liquid and / or gaseous fluid within the chamber 10 may be an R32, R134a, R290, R410A, R450A, R452A, R513A, R454C, R1234yf or R1234ze(E) refrigerant.

[0059] The liquid and / or gaseous fluid is in direct contact with the outer surface of the portion of the armature 7 within the chamber 10. The liquid and / or gaseous fluid is also in direct contact with the solenoids 9a, 9b.

[0060] According to one aspect of the present disclosure, the solenoids 9a, 9b include a plurality of coils. It is contemplated that at least one coil or at least two coils or at least five coils of the solenoids 9a, 9b are directly exposed to the liquid and / or gaseous fluid within the chamber 10a. In a particular embodiment, all coils of the solenoids 9a, 9b are directly exposed to the liquid and / or gaseous fluid. The solenoids 9a, 9b preferably include helical solenoids.

[0061] 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.

[0062] The elastic member 11 actuates the armature 7 and the plunger 5 to close the valve 1. To this end, the elastic member 11 actuates the armature 7 and the plunger 5 towards the seat assembly 6. In a particular embodiment, the elastic member 11 actuates the armature 7, the rod 8 and the plunger 5 to close the valve 1. To this end, the elastic member 11 actuates the armature 7, the rod 8 and the plunger 5 towards the seat assembly 6. The member 11 preferably actuates these movable members 7, 8, 5 towards the assembly 6 until the plunger 5 engages the cooperating member of the assembly 6. The plunger 5 advantageously engages the cooperating member of the assembly 6 in the closed position of the valve 1.

[0063] According to one aspect, the resilient member 11 includes a compression spring. In one embodiment, the resilient member 11 includes a helical compression spring.

[0064] Figure 1 The resilient member 11 is shown in the form of a spring. It is contemplated that other resilient members such as ferromagnetic members actuate the armature 7 and the plunger 5 to close the valve 1. It is contemplated that a resilient member such as a ferromagnetic member actuates the armature 7, the rod 8, and the plunger 5 to close the valve 1. This list of resilient members is not exhaustive.

[0065] Now turning to Figure 2 , details of the valve seat assembly 6 of the valve 1 are shown. The valve seat assembly 6 includes a washer 12, such as an annular seal. The washer 12 may be made of an elastic material, such as a polymeric material and / or a rubber material. As a non-limiting example, the washer 12 may be made of a polymeric material that includes at least one of the following:

[0066] - Polytetrafluoroethylene,

[0067] - Polyetheretherketone.

[0068] The polymeric material including polytetrafluoroethylene may also include graphite particles, such as spherical graphite.

[0069] As other non-limiting examples, the washer 12 may be made of a polymeric material selected from the following:

[0070] - Polytetrafluoroethylene; or

[0071] - Polyetheretherketone.

[0072] The washer 12 provides holes to enable fluid to flow to or from the first port 3. Similarly, the washer 12 provides holes to enable fluid to flow to or from the second port 4.

[0073] The holes and / or orifices of the washer 12 prevent the plunger 5 from moving into and out of the holes and / or orifices of the washer 12. In other words, the washer 12 ultimately stops or inhibits the movement of the plunger 5. That is to say, the inner diameter of the holes and / or orifices of the washer 12 is smaller than the outer diameter of the plunger 5. More specifically, the inner diameter of the holes and / or orifices may be smaller than the outer diameter of the edge of the plunger 5. The inner diameter of the holes and / or orifices may also be smaller than the outer diameter of the rim of the plunger 5. The inner diameter of the holes and / or orifices may further be smaller than the outer diameter of the head portion of the plunger 5.

[0074] In one embodiment, the gasket 12 has cylindrical symmetry. It is also contemplated that the second port 4 has cylindrical symmetry. Desirably, both the gasket 12 and the second port 4 have cylindrical symmetry. The gasket 12 and the second port 4 may even exhibit cylindrical symmetry with respect to the same axis or with respect to substantially the same axis. This axis is advantageously defined by the linear movement of the plunger 5. This axis may also be defined by the axial movement of the plunger 5.

[0075] In a particular embodiment, both the gasket 12 and the hole of the gasket 12 have cylindrical symmetry. The gasket 12 and the hole of the gasket 12 may even exhibit cylindrical symmetry with respect to the same axis or with respect to substantially the same axis. This axis is advantageously defined by the linear movement of the plunger 5. This axis may also be defined by the axial movement of the plunger 5.

[0076] The gasket 12 can be mechanically mounted to the frame 13. Then, the frame 13 mechanically connects the gasket 12 to the second port 4. It is contemplated that the frame 13 and the gasket 12 provide parallel surfaces. These parallel surfaces are perpendicular to the direction of flow through the second port 4 and / or the symmetry axis 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 surface of the gasket 12 abuts the parallel surface of the frame 13. That is, the gasket 12 is placed on the frame 13.

[0077] In one embodiment, the frame 13 comprises a metallic material such as steel. As a non-limiting example, the steel can be selected from:

[0078] - Austenitic steel,

[0079] - Ferritic steel,

[0080] - Stainless steel.

[0081] In an alternative embodiment, the frame 13 comprises aluminum (alloy) or bronze or brass. In yet another alternative embodiment, the frame 13 comprises a polymeric material. According to one aspect, the frame 13 is manufactured using an additive manufacturing technique such as three-dimensional printing. In a particular embodiment, the manufacture of the frame 13 may involve selective laser sintering. It is also contemplated that the frame 13 comprises a grey cast material.

[0082] According to one aspect of the present disclosure, the housing 2 and the frame 13 are made of the same material.

[0083] The valve seat assembly 6 further includes flow control adapters 14a, 14b. The flow control adapters 14a, 14b are arranged such that the gasket 12 is disposed between the flow control adapters 14a, 14b and the valve port 4. In one embodiment, the gasket 12 is disposed between the flow control adapters 14a, 14b and the aforementioned parallel surfaces of the frame 13.

[0084] 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 the symmetry axis 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 flow control adapters 14a, 14b.

[0085] 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 disposed on opposite sides of the gasket 12. The first surface of the gasket 12 abuts the frame 13. The second surface of the gasket 12 abuts the flow control adapters 14a, 14b. The gasket 12 is advantageously squeezed between (a part of) the frame 13 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.

[0086] 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 the cooperating portion of the plunger 5. The cooperating portion of the plunger 5 can be selected from at least one of the following:

[0087] - The edge of the plunger 5,

[0088] - The rim of the plunger 5,

[0089] - The head portion of the plunger 5.

[0090] The gasket 12 can be made of a material that is more ductile than the material of the cooperating portion of the plunger 5. The material of the gasket 12 is more ductile than the material of the aforementioned cooperating portion at temperatures below 433 Kelvin. At temperatures above 213 Kelvin, the material of the gasket 12 is also more ductile than the material of the cooperating portion. In other words, the gasket 12 may deform when the valve 1 is in use.

[0091] In a particular embodiment, the flow control adapters 14a, 14b comprise aluminum (alloy) or bronze or brass. In yet another particular embodiment, the flow control adapters 14a, 14b comprise a polymeric material. As a non - limiting example, the material of the flow control adapters 14a, 14b can also be selected from:

[0092] - Austenitic steel,

[0093] - Ferritic steel,

[0094] - Stainless steel.

[0095] The flow control adapters 14a, 14b provide holes and / or orifices to enable fluid to flow to or from the first port 3. Similarly, the flow control adapters 14a, 14b provide holes and / or orifices to enable fluid to flow to or from the second port 4. The holes and / or orifices of the adapters 14a, 14b allow the plunger 5 to linearly move into and out of the holes and / or orifices. The holes and / or orifices of the adapters 14a, 14b also allow the plunger 5 to axially move into and out of the holes and / or orifices. That is, the inner diameter of the holes and / or orifices of the adapters 14a, 14b is greater than the outer diameter of the plunger 5. More specifically, the inner diameter of the holes and / or orifices can be greater than the outer diameter of the edge of the plunger 5. The inner diameter of the holes and / or orifices can also be greater than the outer diameter of the rim of the plunger 5. The inner diameter of the holes and / or orifices can further be greater than the outer diameter of the head portion of the plunger 5.

[0096] In one embodiment, the plunger 5 can linearly move a distance between 0 and 10 millimeters in the direction of the flow. More preferably, the plunger 5 can linearly move a distance between 0 and 5 millimeters in the direction of the flow. Even more preferably, the plunger 5 can linearly move a distance between 0 and 3 millimeters in the direction of the flow. The small stroke distance of the plunger 5 results in a valve 1 that requires a moderate amount of resources for actuation.

[0097] In a related embodiment, the plunger 5 can axially move a distance between 0 and 10 millimeters in the direction of the flow. More preferably, the plunger 5 can axially move a distance between 0 and 5 millimeters in the direction of the flow. Even more preferably, the plunger 5 can axially move a distance between 0 and 3 millimeters in the direction of the flow. The small stroke distance of the plunger 5 results in a valve 1 that requires a moderate amount of resources for actuation.

[0098] The flow control adapters 14a, 14b form a part different from the frame 13 and different from the gasket 12. The flow control adapters 14a, 14b can even be mechanically separated from the frame 13 and the gasket 12. This separation is preferably carried out non-destructively. That is to say, various flow control adapters 14a, 14b can be used together with the same frame 13 and with the same gasket 12. More specifically, various flow control adapters 14a, 14b can be mounted to and / or assembled to the same frame 13. For example, various flow control adapters 14a, 14b can be screw-mounted and / or glued and / or shrink-fitted to the frame 13. As another non-limiting example, various flow control adapters 14a, 14b can be press-fitted to the frame 13. As yet another non-limiting example, various flow control adapters 14a, 14b can be caulked to the frame 13. When various flow control adapters 14a, 14b can be mounted to the same frame 13, the valve 1 can be more easily constructed. By replacing the flow control adapters 14a, 14b, various flow rates through the valve can be achieved.

[0099] In Figure 1 and Figure 2 the embodiment shown, the flow control adapters 14a, 14b are diffusers and have rotational symmetry. As Figure 1 shown, the flow control adapters 14a, 14b include an inner portion, and the inner portion has an inclined surface. The surface of the inner portion is preferably inclined and at the same time smooth. It is also contemplated that the cooperating portion of the plunger 5 has rotational symmetry. Desirably, both the flow control adapters 14a, 14b and the cooperating portion of the plunger 5 have rotational symmetry. It is also contemplated that the rim of the cooperating portion of the plunger 5 has rotational symmetry. Desirably, both the flow control adapters 14a, 14b and the rim of the cooperating portion of the plunger 5 have rotational symmetry. It is also contemplated that the edge of the cooperating portion of the plunger 5 has rotational symmetry. Desirably, both the flow control adapters 14a, 14b and the edge of the cooperating portion of the plunger 5 have rotational symmetry. In one embodiment, the head portion of the plunger 5 has rotational symmetry. Desirably, both the flow control adapters 14a, 14b and the head portion of the plunger 5 have rotational symmetry.

[0100] The cooperating portions of the flow control adapters 14a, 14b and the plunger 5 may even exhibit rotational symmetry about (substantially) the same axis. The peripheral rings of the cooperating portions of the flow control adapters 14a, 14b and the plunger 5 may also exhibit rotational symmetry about (substantially) the same axis. The edges of the cooperating portions of the flow control adapters 14a, 14b and the plunger 5 may also exhibit rotational symmetry about (substantially) the same axis. In one embodiment, the head portions of the flow control adapters 14a, 14b and the plunger 5 exhibit rotational symmetry about (substantially) the same axis.

[0101] Now turning to Figure 3 , a configuration is shown in which the flow control adapter 14c no longer has complete cylindrical symmetry or rotational symmetry. As Figure 3 The flow control adapter 14c shown in is viewed from the top, while Figure 2 The flow control adapters 14a, 14b shown in are viewed from the side. More specifically, Figure 2 A cross-sectional view of the flow control adapters 14a, 14b is provided.

[0102] Instead of having complete rotational symmetry, Figure 3 The symmetry of the flow control adapter 14c shown in is twofold with respect to the plane 15. That is, the flow control adapter 14c has reflection symmetry with respect to the plane 15. Compared with the flow control adapters 14a, 14b depicted in Figure 2 , the surface 16 of the flow control adapter 14c is preferably not inclined. For example, the surface 16 of the top surface of the flow control adapter 14c is preferably not frustoconical either. The top surface of the flow control adapter 14c faces away from the second port 4.

[0103] Two depressions 17a, 17b break the complete rotational symmetry of the flow control adapter 14c, as Figure 3 shown in. In operation, a fluid such as refrigerant can flow into the space between the plunger 5 and the adapter 14c via the depressions 17a, 17b. Thus, the depressions 17a, 17b enable a limited flow between the plunger 5 and the adapter 14c.

[0104] That is, a fluid such as refrigerant will flow laterally into the space between the plunger 5 and the depressions 17a, 17b. Preferably, the flow of the fluid is enabled to occur laterally between the cylindrical outer surface of the plunger 5 and the depressions 17a, 17b. Then, the fluid will continue to flow to one of the ports 3, 4 of the valve 1. When the plunger 5 linearly moves between the closed position and the open position of the valve 1, this flow rate will change. When the plunger 5 axially moves between the closed position and the open position of the valve 1, this flow rate will also change. When the plunger 5 is in the closed position, this flow rate will be zero.

[0105] According to one aspect of the present disclosure, the recesses 17a, 17b include openings. According to one aspect of the present disclosure, the recesses 17a, 17b are openings. Advantageously, both of the recesses 17a, 17b as shown in Figure 3 are openings.

[0106] According to one aspect of the present disclosure, the recesses 17a, 17b include notches. According to one aspect of the present disclosure, the recesses 17a, 17b are notches. Advantageously, both of the recesses 17a, 17b as shown in Figure 3 are notches.

[0107] The recesses 17a, 17b exhibit reflection symmetry with respect to the plane 15. In a particular embodiment, the recesses 17a, 17b exhibit reflection symmetry with respect to the plane 18. The plane 18 is advantageously perpendicular to the plane 15.

[0108] The flow control adapter 14c provides holes and / or orifices to enable fluid to flow to or from the first port 3. Similarly, the flow control adapter 14c provides holes and / or orifices to enable fluid to flow to or from the second port 4. The holes and / or orifices of the flow control adapter 14c enable the plunger 5 to linearly move into and out of the holes and / or orifices. The holes and / or orifices of the adapter 14c also enable the plunger 5 to axially move into and out of the holes and / or orifices. That is, the inner diameter 19 of the holes and / or orifices of the adapter 14c is greater than the outer diameter of the plunger 5. More specifically, the inner diameter 19 of the holes and / or orifices may be greater than the outer diameter of the edge of the plunger 5. The inner diameter 19 of the holes and / or orifices may also be greater than the outer diameter of the rim of the plunger 5.

[0109] The material selection of the flow control adapter 14c is the same as that of the flow control adapters 14a, 14b.

[0110] Due to its inclined or inverted frustoconical surface, Figure 2 the flow control adapters 14a, 14b of Figure 3 provide a greater flow rate than the adapter 14c of

[0111] The flow control adapter 14c advantageously forms a part that is different from the frame 13 and different from the gasket 12. The flow control adapter 14c can even be mechanically separated from the frame 13 and the gasket 12. This separation is preferably carried out non-destructively. That is, the various flow control adapters 14a - 14c can be used with the same frame 13 and with the same gasket 12. More specifically, the various flow control adapters 14a - 14c can be mounted to and / or assembled to the same frame 13. For example, the various flow control adapters 14a - 14c can be screw-mounted and / or glued and / or shrink-fitted to the frame 13. When the various flow control adapters 14a - 14c can be mounted to the same frame 13, the valve 1 can be constructed more easily. By replacing the flow control adapter 14c, multiple flow rates through the valve can be achieved.

[0112] Now turning to Figure 4 , a cross-section of the same flow control adapter 14 is shown. Figure 4 The cross-section of Figure 3 is a cross-section along the plane 15 as shown in

[0113] Two depressions 17a, 17b and / or openings 17a, 17b and / or notches 17a, 17b are located on both sides of the flow control adapter 14. In the exemplary embodiment shown in Figure 4 , the cross-sections of these depressions 17a, 17b and / or openings 17a, 17b and / or notches 17a, 17b have an arcuate profile. These arcs connect the surface 16 of the adapter 14c to another parallel surface of the flow control adapter 14c, which is opposite to the first surface.

[0114] It is also contemplated that the profile of these depressions 17a, 17b and / or openings 17a, 17b and / or notches 17a, 17b can be triangular. The straight lines of these triangles connect the first surface 16 of the adapter 14c to the second parallel surface of the flow control adapter 14c. The second of these surfaces is disposed opposite to and parallel to the first surface 16. It is also contemplated that the profile of the depressions 17a, 17b and / or openings 17a, 17b and / or notches 17a, 17b can include steps.

[0115] Now referring to Figure 5 , another cross-section of the same flow control adapter 14c is shown. Figure 5 The cross-section of Figure 4 is different from the cross-section of Figure 3 and is a cross-section along the plane 18 as shown in

[0116] Two polygon parts 20a, 20b are located on both sides of the flow control adapter 14. The parts 20a, 20b with polygon profiles are part of the tubular body of the flow control adapter 14c. The parts 20a, 20b are different from the recesses 17a, 17b and / or openings 17a, 17b and / or notches 17a, 17b of the flow control adapter 14c.

[0117] In Figure 5 the exemplary embodiment of, the parts 20a, 20b have rectangular profiles. It is also contemplated that the parts 20a, 20b may have a quadratic profile.

[0118] According to one aspect of the present disclosure, the surface 16 may be configured to modify the mechanical properties of the flow control adapter 14c. For example, the surface 16 may be configured to accommodate stress and strain within the flow control adapter 14c. The surface 16 may also be configured to modify the flow properties of the flow control adapter 14c.

[0119] The flow control adapters 14a - 14c may include fewer than two recesses 17a, 17b. More specifically, the flow control adapters 14a - 14c may include a single recess 17a, 17b. Similarly, the flow control adapters 14a - 14c may include fewer than two openings 17a, 17b. More specifically, the flow control adapters 14a - 14c may include a single opening 17a, 17b. The flow control adapters 14a - 14c may also include fewer than two notches 17a, 17b. More specifically, the flow control adapters 14a - 14c may include a single notch 17a, 17b.

[0120] The flow control adapters 14a - 14c may include more than two recesses 17a, 17b. Similarly, the flow control adapters 14a - 14c may include more than two openings 17a, 17b. The flow control adapters 14a - 14c may also include more than two notches 17a, 17b.

[0121] The number of recesses 17a - 17d and / or openings 17a - 17d and / or notches 17a - 17d generally corresponds to the flow rate to be achieved.

[0122] Figure 6 A flow control adapter 14d including four recesses 17a - 17d and / or four openings 17a - 17d and / or four notches 17a - 17d is shown. As Figure 5 the recesses 17a - 17d and / or openings 17a - 17d and / or notches 17a - 17d shown in are symmetrically arranged. As Figure 5 the arrangement depicted in has four - fold symmetry. In other words, Figure 5The flow control adapter 14d will have the same appearance after being rotated ninety degrees about the axis. In this case, the axis of symmetry is the intersection of planes 15 and 18.

[0123] Figure 6 The flow control adapter 14d also has reflection symmetry with respect to planes 15 and 18.

[0124] The flow control adapter 14d provides holes and / or orifices to enable fluid to flow to or from the first port 3. Similarly, the flow control adapter 14d provides holes and / or orifices to enable fluid to flow to or from the second port 4. The holes and / or orifices of the flow control adapter 14d allow the plunger 5 to linearly move into and out of the holes and / or orifices. The holes and / or orifices of the adapter 14d also allow the plunger 5 to axially move into and out of the holes and / or orifices. That is, the inner diameter 19 of the holes and / or orifices of the adapter 14d is larger than the outer diameter of the plunger 5. More specifically, the inner diameter 19 of the holes and / or orifices can be larger than the outer diameter of the edge of the plunger 5. The inner diameter 19 of the holes and / or orifices can also be larger than the outer diameter of the rim of the plunger 5.

[0125] The material selection of the flow control adapter 14d is the same as that of the flow control adapters 14a, 14b, and the flow control adapter 14c.

[0126] Due to its inclined or inverted frustoconical surface, Figure 2 the flow control adapters 14a, 14b Figure 3 provide a greater flow rate than the adapter 14d. The flow control adapter 14d no longer has an inclined surface with complete rotational symmetry. Instead, the recesses 17a, 17b and / or the openings 17a, 17b and / or the notches 17 enable flow. However, these recesses 17a, 17b and / or the openings 17a, 17b and / or the notches 17 do not provide flow along the entire perimeter of the flow control adapter 14d. Therefore, the flow rate value through the flow control adapter 14d tends to be less than the flow rate value through the flow control adapters 14a, 14b. The comparison of the flow coefficients between these embodiments applies under a constant pressure drop and a constant inner diameter of the flow control adapter 14d.

[0127] The flow control adapter 14d advantageously forms a part different from the frame 13 and different from the gasket 12. The flow control adapter 14d can even be mechanically separated from the frame 13 and the gasket 12. This separation is preferably carried out non-destructively. That is, the various flow control adapters 14a - 14d can be used with the same frame 13 and with the same gasket 12. More specifically, the various flow control adapters 14a - 14d can be mounted to and / or assembled to the same frame 13. For example, the various flow control adapters 14a - 14d can be screw-mounted and / or glued and / or shrink-fitted to the frame 13. When the various flow control adapters 14a - 14d can be mounted to the same frame 13, the valve 1 can be more easily constructed. By replacing the flow control adapter 14d, multiple flow rates through the valve can be achieved.

[0128] As Figure 3 and Figure 6 shown, the depressions 17a - 17d are symmetrically distributed along the tubular portions of the respective flow control adapters 14c, 14d. Similarly, Figure 3 and Figure 6 the openings 17a - 17d are symmetrically distributed along the tubular portions of the respective flow control adapters 14c, 14d. In addition, Figure 3 and Figure 6 the notches 17a - 17d are also symmetrically distributed along the tubular portions of the respective flow control adapters 14c, 14d.

[0129] The symmetric arrangement provides an advantage in terms of a well-defined flow profile. However, there are practical situations where such a flow profile is not desired. For example, flow measurements involving ultrasonic sensors may require turbulence.

[0130] Figure 7 Shown is a flow adapter 14e in which the depressions 17a, 17b, and 17e are not symmetrically distributed along the tubular portion of the adapter 14e. More specifically, the depressions 17a, 17b, and 17e are not symmetrically distributed with respect to the axis defined by the intersection of the planes 15 and 18. The flow adapter 14e needs to be rotated 360 degrees about the axis defined by the intersection of the planes 15 and 18 until it looks the same.

[0131] Figure 7 Also shown is a flow adapter 14e in which the openings 17a, 17b, and 17e are not symmetrically distributed along the tubular portion of the adapter 14e. More specifically, the openings 17a, 17b, and 17e are not symmetrically distributed with respect to the axis defined by the intersection of the planes 15 and 18. The flow adapter 14e needs to be rotated 360 degrees about the axis defined by the intersection of the planes 15 and 18 until it looks the same.

[0132] Figure 7Also shown is a flow adapter 14e in which the notches 17a, 17b, and 17e are not symmetrically distributed along the tubular portion of the adapter 14e. More specifically, the notches 17a, 17b, and 17e are not symmetrically distributed with respect to the axis defined by the intersection of the planes 15 and 18. The flow adapter 14e needs to be rotated 360 degrees about the axis defined by the intersection of the planes 15 and 18 until it looks the same.

[0133] The flow control adapter 14e provides holes and / or orifices to enable fluid to flow to or from the second port 4. The holes and / or orifices of the flow control adapter 14e allow the plunger 5 to linearly move into and out of the holes and / or orifices. The holes and / or orifices of the adapter 14e also allow the plunger 5 to axially move into and out of the holes and / or orifices. That is, the inner diameter 19 of the holes and / or orifices of the adapter 14e is greater than the outer diameter of the plunger 5. More specifically, the inner diameter 19 of the holes and / or orifices may be greater than the outer diameter of the edge of the plunger 5. The inner diameter 19 of the holes and / or orifices may also be greater than the outer diameter of the rim of the plunger 5.

[0134] The material selection for the flow control adapter 14e is the same as that for the flow control adapters 14a - 14d.

[0135] Due to its inclined or inverted frustoconical surface, Figure 2 the flow control adapters 14a, 14b provide a greater flow rate than Figure 3 the adapter 14e. The flow control adapter 14e no longer has an inclined surface with complete rotational symmetry. Instead, the recesses 17a, 17b and / or the openings 17a, 17b and / or the notches 17 enable flow. However, these recesses 17a, 17b and / or openings 17a, 17b and / or notches 17 do not provide flow along the entire perimeter of the flow control adapter 14e. Therefore, the flow rate value through the flow control adapter 14e tends to be less than the flow rate value through the flow control adapters 14a, 14b. The comparison of the flow coefficients between these embodiments applies at a constant pressure drop and a constant inner diameter of the flow control adapter 14e.

[0136] The flow control adapter 14e advantageously forms a part that is different from the frame 13 and different from the gasket 12. The flow control adapter 14e can even be mechanically separated from the frame 13 and the gasket 12. This separation is preferably carried out non-destructively. That is, the various flow control adapters 14a - 14e can be used with the same frame 13 and with the same gasket 12. More specifically, the various flow control adapters 14a - 14e can be mounted to and / or assembled to the same frame 13. For example, the various flow control adapters 14a - 14e can be screw-mounted and / or glued and / or shrink-fitted to the frame 13. When the various flow control adapters 14a - 14e can be mounted to the same frame 13, the valve 1 can be more easily constructed. By replacing the flow control adapter 14e, various flow rates through the valve can be achieved.

[0137] As described in detail herein, the present disclosure relates to a valve (1) comprising:

[0138] a first port (3), a second port (4), and a fluid path extending between the first port (3) and the

[0139] second port (4);

[0140] a plunger (5) in the fluid path between the first port (3) and the second port (4), the plunger (5) being capable of selectively moving between a closed position and an open position, the closed position closing the fluid path between the first port (3) and the second port (4), and the open position opening the fluid path between the first port (3) and the second port (4);

[0141] a valve seat assembly (6) in the fluid path between the first port (3) and the second port (4), the valve seat assembly (6) comprising:

[0142] a gasket (12), a frame (13), and an adapter (14a - 14e);

[0143] wherein the gasket (12) is different from the adapter (14a - 14e) and is interposed between the adapter (14a - 14e) and a part of the frame (13);

[0144] wherein the adapter (14a - 14e) has a first hole with a first diameter (19), and wherein the gasket (12) has a second hole with a second diameter;

[0145] wherein, in the open position, the plunger (5) is separated from the gasket (12) to enable fluid to pass through the second hole and flow along the fluid path;

[0146] Wherein, in the closed position, the plunger (5) abuts against the washer (12) to prevent the fluid from passing through the second hole and flowing along the fluid path; and

[0147] Wherein, the first diameter (19) is greater than the second diameter.

[0148] According to one aspect of the present disclosure, the adapter (14a - 14e) includes 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).

[0149] It is contemplated that the washer (12) is separated from the adapter (14a - 14e). It is also contemplated that the washer (12) can be separated from the adapter (14a - 14e). This separation is preferably carried out non - destructively. That is, the mechanical structure of the valve is retained.

[0150] The first hole advantageously includes a first aperture. The first hole desirably is a first aperture. The second hole advantageously includes a second aperture. The second hole desirably is a second aperture.

[0151] In one embodiment, the first diameter (19) is greater than the second diameter. In a related embodiment, the first diameter (19) is wider than the second diameter. As a non - limiting example, the first diameter (19) can be at least 0.5 millimeters wider than the second diameter. As another non - limiting example, the first diameter (19) can be at least one millimeter wider than the second diameter. These widths are advantageously the widths in the transverse direction. The transverse direction is defined by the movement of the plunger (5), which is perpendicular to the linear movement of the plunger (5). The transverse direction is also defined by the movement of the plunger (5), which is perpendicular to the axial movement of the plunger (5).

[0152] The present disclosure also relates to any of the foregoing valves (1), wherein the adapter (14a - 14e) includes a second surface, and wherein the portion of the frame (13) includes a first surface;

[0153] Wherein, the first surface is parallel to the second surface; and

[0154] Wherein, the washer (12) abuts against the first surface and abuts against the second surface.

[0155] The present disclosure also relates to any of the foregoing valves (1), wherein the frame (13) is mechanically mounted to the second port (4);

[0156] Wherein, the adapter (14a - 14e) is mounted to the frame (13); and

[0157] Wherein, the washer (12) is squeezed between the part of the frame (13) and the adapter (14a - 14e).

[0158] As a non - limiting example, the adapter (14a - 14e) can be removably mounted to the frame (13) by screwing the adapter (14a - 14e) into the frame (13). As another non - limiting example, the adapter (14a - 14e) can be removably mounted to the frame (13) by gluing the adapter (14a - 14e) to the frame (13). The removal of the adapter (14a - 14e) is carried out while preserving the mechanical structure and / or integrity of the valve (1).

[0159] The present disclosure also relates to any one of the foregoing valves (1), wherein the plunger (5) is mechanically connected to a linear actuator (7, 8, 9a, 9b); and

[0160] wherein, the linear actuator (7, 8, 9a, 9b) is configured to move the plunger (5) in an axial direction.

[0161] In one embodiment, the linear actuator (7, 8, 9a, 9b) includes an armature (7) and at least one solenoid (9a, 9b). Preferably, the plunger (5) is mechanically coupled to the armature (7). In a related embodiment, the linear actuator (7, 8, 9a, 9b) includes an armature (7), a rod (8), and at least one solenoid (9a, 9b), wherein the armature (7) is mechanically connected to the rod (8). Preferably, the plunger (5) is mechanically coupled to the rod (8). Ideally, the plunger (5) is mechanically connected to the rod (8).

[0162] The present disclosure also relates to any one of the foregoing valves (1), which includes a first surface and a second surface and an actuator, wherein the first surface is perpendicular to the axial direction; and

[0163] wherein, the second surface is perpendicular to the axial direction.

[0164] The present disclosure also relates to any one of the foregoing valves (1), wherein the plunger (5) includes a head portion having an end, and the end points to the valve seat assembly (6);

[0165] wherein, the head portion protrudes from the plunger (5);

[0166] wherein, a circular edge is formed by the end of the head portion; and

[0167] wherein, in the closed position, the circular edge abuts the washer (12).

[0168] The present disclosure also relates to any one of the foregoing valves (1), wherein the plunger (5) includes a head portion having an end that points towards the valve seat assembly (6);

[0169] wherein the head portion projects from the plunger (5);

[0170] wherein a circular rim is formed by the end of the head portion; and

[0171] wherein, in the closed position, the circular rim abuts the gasket (12).

[0172] The present invention also relates to any one of the foregoing valves (1), wherein the plunger (5) includes a body portion and a head portion;

[0173] wherein the head portion has an end that points towards the valve seat assembly (6);

[0174] wherein the head portion projects from the body portion of the plunger (5);

[0175] wherein a circular edge is formed by the end of the head portion; and

[0176] wherein, in the closed position, the circular edge abuts the gasket (12).

[0177] The body portion of the plunger (5) is preferably different from the head portion of the plunger (5). In one embodiment, the body portion of the plunger (5) includes the container portion of the plunger (5). In related embodiments, the body portion of the plunger (5) is the container portion of the plunger (5).

[0178] The present invention also relates to any one of the foregoing valves (1), wherein the plunger (5) includes a body portion and a head portion;

[0179] wherein the head portion has an end that points towards the valve seat assembly (6);

[0180] wherein the head portion projects from the body portion of the plunger (5);

[0181] wherein a circular rim is formed by the end of the head portion; and

[0182] wherein, in the closed position, the circular rim abuts the gasket (12).

[0183] The body portion of the plunger (5) is preferably different from the head portion of the plunger (5). In one embodiment, the body portion of the plunger (5) includes the container portion of the plunger (5). In related embodiments, the body portion of the plunger (5) is the container portion of the plunger (5).

[0184] The present disclosure also relates to any one of the foregoing valves (1), which includes a head portion and an actuator, wherein the head portion projects axially from a plunger (5).

[0185] The present disclosure also relates to any one of the foregoing valves (1), which includes a linear actuator (7, 8, 9a, 9b), wherein the plunger (5) includes a body portion and a head portion; and

[0186] wherein the head portion of the plunger (5) projects axially from the body portion of the plunger (5).

[0187] In one embodiment, the body portion of the plunger (5) includes a container portion of the plunger (5). In a related embodiment, the body portion of the plunger (5) is the container portion of the plunger (5).

[0188] The present disclosure also relates to any one of the foregoing valves (1), wherein the adapter (14a - 14e) includes a body portion and an inner surface, and the inner surface is disposed between the body portion of the adapter (14a - 14e) and a first hole;

[0189] wherein the inner surface includes a first portion and a second portion, and the second portion of the inner surface is different from the first portion of the inner surface; and

[0190] wherein at least one first recess (17a - 17e) is formed in the first portion of the inner surface.

[0191] The present disclosure also relates to any one of the foregoing valves (1), wherein the adapter (14a - 14e) includes a body portion and an inner surface, and the inner surface is disposed between the body portion of the adapter (14a - 14e) and a first hole;

[0192] wherein the inner surface includes a first portion and a second portion, and the second portion of the inner surface is different from the first portion of the inner surface; and

[0193] wherein at least one first opening (17a - 17e) is formed in the first portion of the inner surface.

[0194] The present disclosure also relates to any one of the foregoing valves (1), wherein the adapter (14a - 14e) includes a body portion and an inner surface, and the inner surface is disposed between the body portion of the adapter (14a - 14e) and a first hole;

[0195] wherein the inner surface includes a first portion and a second portion, and the second portion of the inner surface is different from the first portion of the inner surface; and

[0196] wherein at least one first cavity (17a - 17e) is formed in the first portion of the inner surface.

[0197] The at least one first recess (17a - 17e) is different from the first hole.

[0198] It is contemplated that the inner surface of the adapter (14a - 14e) includes an internal cylindrical surface. It is also contemplated that the inner surface of the adapter (14a - 14e) is an internal cylindrical surface.

[0199] The inner surface of the adapter (14a - 14e) is different from the first surface (16) of the adapter (14a - 14e). The inner surface of the adapter (14a - 14e) is different from the second surface of the adapter (14a - 14e). The latter surface of the adapter (14a - 14e) abuts the gasket (12).

[0200] The present disclosure also relates to any one of the foregoing valves (1), wherein the body portion of the adapter (14a - 14e) includes a tubular portion.

[0201] The present disclosure also relates to any one of the foregoing valves (1), wherein the body portion of the adapter (14a - 14e) is a tubular portion.

[0202] The present disclosure also relates to any one of the foregoing valves (1), which includes the body portion of the adapter (14a - 14e) and the head portion (5) of the plunger, wherein, in the closed position, a first gap is formed between the head portion of the plunger (5) and the at least one first recess (17a - 17e).

[0203] The present disclosure also relates to any one of the foregoing valves (1), which includes the body portion of the adapter (14a - 14e) and the head portion of the plunger (5), wherein, in the closed position, a first gap is formed between the head portion of the plunger (5) and the at least one first opening (17a - 17e).

[0204] The present disclosure also relates to any one of the foregoing valves (1), which includes the body portion of the adapter (14a - 14e) and the head portion of the plunger (5), wherein, in the closed position, a first gap is formed between the head portion of the plunger (5) and the at least one first recess (17a - 17e).

[0205] The first gap is preferably at least 0.05 millimeters wide. More preferably, the first gap is at least 0.5 millimeters wide. When the valve (1) is in the open position, the wide gap provides a large flow rate. These widths are advantageously the widths in the transverse direction. The transverse direction is defined by the movement of the plunger (5), which is perpendicular to the linear movement of the plunger (5). The transverse direction is also defined by the movement of the plunger (5), which is perpendicular to the axial movement of the plunger (5).

[0206] The present disclosure also relates to any one of the aforementioned valves (1), which includes a body portion of the adapter (14a - 14e) and a head portion of the plunger (5), wherein, in the open position, a second gap is formed between the circular edge of the plunger (5) and the at least one first recess (17a - 17e).

[0207] The present disclosure also relates to any one of the aforementioned valves (1), which includes at least one first opening (17a - 17e), a body portion of the adapter (14a - 14e), and a circular edge of the plunger (5), wherein, in the open position, a second gap is formed between the circular edge of the plunger (5) and the at least one first opening (17a - 17e).

[0208] The present disclosure also relates to any one of the aforementioned valves (1), which includes at least one first recess (17a - 17e), a body portion of the adapter (14a - 14e), and a circular edge of the plunger (5), wherein, in the open position, a second gap is formed between the circular edge of the plunger (5) and the at least one first recess (17a - 17e).

[0209] The present disclosure also relates to any one of the aforementioned valves (1), which includes at least one first depression (17a - 17e), a body portion of the adapter (14a - 14e), and a circular edge of the plunger (5), wherein, in the open position, a second gap is formed between the circular edge of the plunger (5) and the at least one first depression (17a - 17e).

[0210] The present disclosure also relates to any one of the aforementioned valves (1), which includes at least one first opening (17a - 17e), a body portion of the adapter (14a - 14e), and a circular edge of the plunger (5), wherein, in the open position, a second gap is formed between the circular edge of the plunger (5) and the at least one first opening (17a - 17e).

[0211] The present disclosure also relates to any one of the aforementioned valves (1), which includes at least one first recess (17a - 17e), a body portion of the adapter (14a - 14e), and a circular edge of the plunger (5), wherein, in the open position, a second gap is formed between the circular edge of the plunger (5) and the at least one first recess (17a - 17e).

[0212] The second gap is preferably at least 0.05 millimeters wide. More preferably, the second gap is at least 0.5 millimeters wide. When the valve (1) is in the open position, a wide gap provides a large flow rate. These widths are advantageously the widths in the transverse direction. The transverse direction is defined by the movement of the plunger (5), which is perpendicular to the linear movement of the plunger (5). The transverse direction is also defined by the movement of the plunger (5), which is perpendicular to the axial movement of the plunger (5).

[0213] The present disclosure also relates to any one of the foregoing valves (1), which includes at least one first recess (17a-17e), a third portion of the inner surface being different from a first portion of the inner surface and the third portion of the inner surface being different from a second portion of the inner surface;

[0214] wherein at least one second recess (17a-17e) is formed in the third portion of the inner surface; and

[0215] wherein the at least one first recess (17a-17e) and the at least one second recess (17a-17e) are disposed on diametrically opposite sides of the first hole.

[0216] The present disclosure also relates to any one of the foregoing valves (1), which includes at least one first opening (17a-17e), wherein the inner surface includes a third portion, the third portion of the inner surface being different from a first portion of the inner surface and the third portion of the inner surface being different from a second portion of the inner surface;

[0217] wherein at least one second opening (17a-17e) is formed in the third portion of the inner surface; and

[0218] wherein the at least one first opening (17a-17e) and the at least one second opening (17a-17e) are disposed on diametrically opposite sides of the first hole.

[0219] The present disclosure also relates to any one of the foregoing valves (1), which includes at least one first concavity (17a-17e), wherein the inner surface includes a third portion, the third portion of the inner surface being different from a first portion of the inner surface and the third portion of the inner surface being different from a second portion of the inner surface;

[0220] wherein at least one second concavity (17a-17e) is formed in the third portion of the inner surface; and

[0221] wherein the at least one first concavity (17a-17e) and the at least one second concavity (17a-17e) are disposed on diametrically opposite sides of the first hole.

[0222] The present disclosure also relates to any one of the foregoing valves (1), which includes at least one first recess (17a-17e), wherein the inner surface includes a third portion, the third portion of the inner surface being different from a first portion of the inner surface and the third portion of the inner surface being different from a second portion of the inner surface;

[0223] wherein the first portion of the inner surface and the third portion of the inner surface are disposed on diametrically opposite sides of the first aperture; and

[0224] Wherein, at least one second recess (17a-17e) is formed in a portion of the inner surface different from the first portion and the third portion of the inner surface.

[0225] According to one aspect of the present disclosure, the at least one second recess (17a-17e) is formed in a second portion of the inner surface.

[0226] The present disclosure also relates to any one of the aforementioned valves (1), comprising at least one second recess (17a-17e) and a head portion, wherein, in the closed position, a third gap is formed between the head portion of the plunger (5) and the at least one second recess (17a-17e).

[0227] The present disclosure also relates to any of the aforementioned valves (1), comprising a third portion and a head portion, wherein, in the closed position, a third gap is formed between the head portion of the plunger (5) and the at least one second opening (17a-17e).

[0228] The present disclosure also relates to any of the aforementioned valves (1), comprising a third portion and a head portion, wherein, in the closed position, a third gap is formed between the head portion of the plunger (5) and the at least one second recess (17a-17e).

[0229] The third gap is preferably at least 0.05 mm wide. More preferably, the third gap is at least 0.5 mm wide. When the valve (1) is in the open position, a wide gap provides a large flow rate. These widths are advantageously widths in the transverse direction. The transverse direction is defined by (the movement of) the plunger (5), which is perpendicular to (the linear movement of) the plunger (5). The transverse direction is also defined by (the movement of) the plunger (5), which is perpendicular to (the axial movement of) the plunger (5).

[0230] The present disclosure also relates to any of the aforementioned valves (1), comprising at least one second recess (17a-17e) and a head portion, wherein, in the open position, a fourth gap is formed between the circular edge of the plunger (5) and the at least one second recess (17a-17e).

[0231] The fourth gap is preferably at least 0.05 millimeters wide. More preferably, the fourth gap is at least 0.5 millimeters wide. When the valve (1) is in the open position, the wide gap provides a large flow rate. These widths are advantageously the widths in the transverse direction. The transverse direction is defined by the movement of the plunger (5), which is perpendicular to the linear movement of the plunger (5). The transverse direction is also defined by the movement of the plunger (5), which is perpendicular to the axial movement of the plunger (5).

[0232] It should be emphasized that the foregoing only relates to certain embodiments of the present disclosure. Many changes can be made therein 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 can be made within the scope of the following claims.

[0233] Reference numerals

[0234] 1 Valve

[0235] 2 Housing

[0236] 3 Port

[0237] 4 Port

[0238] 5 Plunger

[0239] 6 Valve seat assembly

[0240] 7 Armature

[0241] 8 Rod

[0242] 9a, 9b Solenoid

[0243] 10 Chamber

[0244] 11 Elastic member

[0245] 12 Washer

[0246] 13 Frame

[0247] 14a - 14e Adapter such as a flow control adapter

[0248] 15 Plane

[0249] 16 Surface such as a top surface

[0250] 17a - 17e Recesses and / or openings and / or notches

[0251] 18 Plane

[0252] 19 Diameter such as an inner diameter

[0253] 20a, 20b Profiles

Claims

1. A valve (1), comprising: 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) in the fluid path between the first port (3) and the second port (4), the plunger (5) being selectively movable between a closed position closing the fluid path between the first port (3) and the second port (4) and an open position opening the fluid path between the first port (3) and the second port (4); a valve seat assembly (6) in the fluid path between the first port (3) and the second port (4), the valve seat assembly (6) comprising: a gasket (12), a frame (13), and adapters (14a - 14e); wherein the gasket (12) is different from the adapters (14a - 14e) and is inserted between the adapters (14a - 14e) and a part of the frame (13); wherein the adapters (14a - 14e) have a first hole with a first diameter (19), and wherein the gasket (12) has a second hole with a second diameter; wherein, in the open position, the plunger (5) is separated from the gasket (12) to enable fluid to pass through the second hole and flow along the fluid path; wherein, in the closed position, the plunger (5) abuts the gasket (12) to prevent the fluid from passing through the second hole and flowing along the fluid path; wherein the first diameter (19) is greater than the second diameter; characterized in that the adapters (14a - 14e) include a body portion and an inner surface disposed between the body portion of the adapters (14a - 14e) and the first hole; and the inner surface includes a first portion and a second portion, the second portion of the inner surface being different from the first portion of the inner surface; and at least one first recess (17a - 17e) is formed in the first portion of the inner surface.

2. The valve (1) according to claim 1, wherein, The adapters (14a - 14e) include a second surface, and wherein the part of the frame (13) includes a first surface; wherein the first surface is parallel to the second surface; and wherein the gasket (12) abuts the first surface and abuts the second surface.

3. The valve (1) according to any one of claims 1 to 2, wherein, The frame (13) is mechanically mounted to the second port (4); wherein the adapters (14a - 14e) are mounted to the frame (13); and wherein the gasket (12) is squeezed between the part of the frame (13) and the adapters (14a - 14e).

4. The valve (1) according to any one of claims 1 to 3, wherein, The plunger (5) is mechanically connected to a linear actuator (7, 8, 9a, 9b); and wherein the linear actuator (7, 8, 9a, 9b) is configured to move the plunger (5) in an axial direction.

5. The valve (1) according to claims 2 and 4, wherein, The first surface is perpendicular to the axial direction; and Wherein, the second surface is perpendicular to the axial direction.

6. The valve (1) according to any one of claims 1 to 5, wherein The plunger (5) includes a head portion having an end, and the end points to the valve seat assembly (6); Wherein, the head portion projects from the plunger (5); Wherein, a circular edge is formed by the end of the head portion; and Wherein, in the closed position, the circular edge abuts the washer (12).

7. The valve (1) according to claims 4 and 6, wherein, The head portion projects axially from the plunger (5).

8. The valve (1) according to claim 7, wherein, The body portion of the adapter (14a - 14e) includes a tubular portion.

9. The valve (1) according to claim 6, wherein, In the closed position, a first gap is formed between the head portion of the plunger (5) and the at least one first recess (17a - 17e).

10. The valve (1) according to claim 6, wherein, In the open position, a second gap is formed between the circular edge of the plunger (5) and the at least one first recess (17a - 17e).

11. The valve (1) according to any one of claims 1 to 10, wherein, The inner surface includes a third portion, the third portion of the inner surface is different from the first portion of the inner surface, and the third portion of the inner surface is different from the second portion of the inner surface; Wherein, at least one second recess (17a - 17e) is formed in the third portion of the inner surface; and Wherein, the at least one first recess (17a - 17e) and the at least one second recess (17a - 17e) are disposed on diametrically opposite sides of the first hole.

12. The valve (1) according to any one of claims 1 to 10, wherein, The inner surface includes a third portion, the third portion of the inner surface is different from the first portion of the inner surface, and the third portion of the inner surface is different from the second portion of the inner surface; Wherein, the first portion of the inner surface and the third portion of the inner surface are disposed on diametrically opposite sides of the first hole; and Wherein, at least one second recess (17a - 17e) is formed in a portion of the inner surface that is different from the first portion and the third portion of the inner surface.

13. The valve (1) according to claim 6 and according to any one of claims 11 to 12, wherein, In the closed position, a third gap is formed between the head portion of the plunger (5) and the at least one second recess (17a - 17e).

14. The valve (1) according to claim 6 and according to any one of claims 11 to 13, wherein, In the open position, a fourth gap is formed between the circular edge of the plunger (5) and the at least one second recess (17a - 17e).

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