Pressure reducer assembly

Abstract

A pressure reducer assembly for reducing the pressure of a fluid, preferably a liquid, more preferably water, comprising: a pressure reducer body, the pressure reducer assembly comprising an inlet section and an outlet section fluidly coupled with the inlet section; a biasing member piston rod; a pressure reducer assembly includes a pressure reducer body including a pressure compensation bore connecting a pressure reducer chamber and an outer surface of the pressure reducer body, and a valve at an inlet section, the valve including a seal seat, the seal seat is configured to selectively interact with the end of the biasing member piston rod to allow and disallow fluid flow through the pressure reducer assembly. The valve is mounted to the pressure reducer body, and the pressure reducer assembly is configured to be detachably mounted, in particular tool-free, to the fluid outflow device and the fluid inflow device such that air pressure inside the pressure reducer chamber can be compensated via the pressure compensation hole and complementary threads of the fluid outflow device and the fluid inflow device.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a pressure reducer assembly. More particularly, the present disclosure relates to fitting or mounting a pressure reducer assembly in a fluid effluent device such as a sprayer for efficient working of the fluid effluent device. BACKGROUND

[0002] Sprayers or other application devices that can be used in domestic and industrial applications and preferably in irrigation of larger areas of cultivation or plant containers can generally require uniform or constant fluid pressure or spray pattern for efficient irrigation. However, the fluid received by the application device from a fluid source can have a non-uniform pressure ranging approximately between 3 bar to 12 bar. This can affect the consistency of the spray pattern produced by the application device. To overcome the drawbacks due to the variable fluid pressure from the fluid source, a pressure reducer assembly is generally mounted near the inlet portion of the fluid application device.

[0003] The pressure reducer assembly reduces the pressure of the fluid received from the fluid source at the fluid application device to a desired pressure level and further works to maintain the reduced pressure despite fluctuations in the fluid pressure of the fluid received from the fluid source.

[0004] The pressure reducer assembly generally includes a biasing member piston rod and a diaphragm operatively coupled with the piston rod in a pressure reducer chamber. To smoothen the working of the piston rod and the diaphragm, the pressure reducer further includes a pressure compensation hole. The pressure compensation hole ensures the mobility of the piston rod and the diaphragm in the axial direction of the pressure reducer chamber. In the known pressure reducer assemblies, the pressure compensation hole is exposed to the ambient environment and thus can get clogged with dirt, sand or any other foreign elements and can restrict the mobility of the piston rod and the diaphragm due to the under-pressure or over-pressure induced in the pressure reducer chamber, thereby compromising the functional safety of the pressure reducer assembly. Further, in the known pressure reducer assemblies, the pressure compensation hole is formed in the outer wall of the application device in which the pressure reducer assembly is mounted. Thus, the known fluid application devices can be used only with specific pressure reducer assemblies that are physically and / or geometrically adapted to the corresponding mounting of the fluid application device. Additionally, the outer wall including the pressure compensation hole is a part of the pressure reducer assembly. Thus, each application device requires a specially adapted and formed pressure reducer assembly. Therefore, there is a need for an improved pressure reducer assembly that can at least partially overcome the above-mentioned additional drawbacks. In particular, an improved and universally applicable pressure reducer assembly can be provided that can be easily retrofitted onto already existing application devices and that can not interact geometrically with the application device. At the same time, the pressure reducer assembly should be less susceptible to contamination. Thus, a universally applicable pressure reducer assembly with an extended service life can be provided.

[0005] One example of a pressure reducer is provided in Chinese Utility Model CN 204512569 U (hereinafter the '569 reference). The '569 reference provides a filter pressure reducer comprising a pressure reducer and a filter device. The pressure reducer comprises a main part, a regulator, and a valve cover. The valve cover outer wall is equipped with reinforcing ribs and a pressure regulating hole, the inside of which is equipped with a filter screen. However, the '569 reference requires additional attachments such as a filter screen, which can complicate the maintenance process of the pressure reducer assembly and further increase the overall production cost of the pressure reducer assembly. Additionally, the '569 reference requires a specially formed applicator that is adapted to conform to one particular pressure reducer.

[0006] Therefore, there is a need for a simple, improved, and smart pressure reducer assembly that provides an extended service life and increased maintenance intervals and is usable with different fluid applicators.

[0007] Another example of a pressure reducer is provided in U.S. Patent Application US 2018 / 0253113 Al (hereinafter the '113 reference). The '113 shows a pressure regulator comprising a housing having an inlet flow passage and an outlet flow passage, a plunger reciprocally mounted in the housing and including a plunger flow passage having an axis offset from an axis of the inlet flow passage, and a fixed valve seat fixed to the housing and positioned between the inlet flow passage and an inlet of the flow passage of the plunger, wherein the valve seat is configured to receive and abut the inlet of the flow passage of the plunger. Further, an opposite side of the diaphragm to the outlet flow passage can be at ambient pressure by venting the inner liner to atmosphere through a vent hole in the inner liner and through a tortuous path provided by the serrated threads of the retainer. However, the '113 reference requires a specially formed housing that includes a valve seat as part of itself, and thus is an important part of the pressure reducer as well. Therefore, the '113 reference requires a specially formed applicator that is adapted to conform to one particular pressure reducer.

[0008] Therefore, there is a need for a simple, improved, and smart pressure reducer assembly that provides an extended service life and increased maintenance intervals and is usable with different fluid applicators. SUMMARY

[0009] In view of the above, it is an object of the present disclosure to address or at least reduce the above-mentioned drawbacks. This object is at least partially achieved by a pressure reducer assembly for reducing the pressure of a fluid, preferably a liquid and more preferably water. The pressure reducer assembly comprises a pressure reducer body defining at least a portion of a pressure reducer chamber along a central axis. The pressure reducer assembly further comprises an inlet section and an outlet section fluidly coupled with the inlet section. The inlet section is configured to allow a fluid to flow in and the outlet section is configured to allow the fluid to flow out. A biasing member piston rod having a center along the central axis connects the inlet section with the outlet section. The piston rod is movable relative to the pressure reducer body. A sealing element is operatively coupled with the piston rod such that the sealing element is configured to form a seal between an inner wall section of the fluid flow out device and an outer surface of the piston rod at the outlet section. The pressure reducer assembly further comprises a pressure compensation bore connecting the pressure reducer chamber with an outer surface of the pressure reducer body. The pressure reducer assembly further comprises a valve at the inlet section comprising a sealing seat configured to selectively interact with an end of the biasing member piston rod to not allow the fluid to flow through the pressure reducer assembly. The pressure reducer assembly is characterized in that the valve is mounted to the pressure reducer body, wherein the pressure assembly is configured to be particularly tool-free, detachably mounted to the fluid flow out device and the fluid flow in device such that an air pressure inside the pressure reducer chamber can be particularly specifically compensated via the pressure compensation bore and complementary threads of the fluid flow out device and the fluid flow in device.

[0010] Thus, the present disclosure provides an improved pressure reducer assembly which can be simple in construction and also easily assembled or mounted in an application device. The pressure reducer assembly can advantageously be designed in such a way that the pressure compensation bore is not directly exposed to the outside environment. The pressure compensation bore is surrounded or covered by the fluid flow out device and the fluid flow in device, which can thereby provide protection to the pressure compensation bore from foreign elements present in the surrounding or outside environment of the fluid flow out device and the fluid flow in device. Thus, the pressure compensation bore can be prevented from clogging due to dirt, sand, etc. The pressure compensation bore thereby allows or ensures unhindered mobility of the piston rod in the pressure reducer chamber and thus allows or ensures efficient working of the pressure reducer assembly. In addition, the pressure reducer assembly can be improved and universally applicable to also easily retrofit onto already existing application devices and can not geometrically interact with the application device in which the pressure reducer assembly is mounted. Thus, the pressure reducer assembly can be provided in a simple construction, with a prolonged service life, increased maintenance intervals and can be retrofitted onto different already existing application devices.

[0011] The pressure reducer assembly comprising an inlet section and an outlet section according to the present application can mean that a pressure reducer chamber is defined or formed between the inlet section of the pressure reducer assembly and the outlet section of the pressure reducer assembly, wherein the outlet section and the inlet section are fluidly coupled to each other, and wherein the inlet section is configured to allow a fluid to flow into the pressure reducer assembly and the outlet section is configured to allow the fluid to flow out of the pressure reducer assembly.

[0012] The fluid outflow device according to the present application can be configured to direct the fluid away from the pressure reducer assembly, in particular away from the outlet section of the pressure reducer chamber. Further, the fluid outflow device can be configured to direct the fluid from the outlet section of the pressure reducer chamber to an outlet of the fluid outflow device, at which outlet the fluid can be applied to the environment. The fluid outflow device according to the present application can be, for example, a sprayer, a sprinkler, a shower head, a mist shower head, a spray gun, or a drip irrigation component. Further, the fluid outflow device can be, for example, a coupling nipple of a water socket.

[0013] The fluid inflow device according to the present application can be configured to direct the fluid to the pressure reducer assembly, in particular to the inlet section of the pressure reducer chamber. Further, the fluid inflow device can be configured to direct the fluid from an inlet (e.g., a fluid connection such as a hose or a line) of the fluid inflow device to the inlet section of the pressure reducer chamber. The fluid inflow device according to the present application can be, for example, a connector nipple of a water application device or a water supply line of a water socket.

[0014] The pressure reducer assembly further comprises a valve at the inlet section, wherein the valve being mounted to the pressure reducer body can mean that the valve and thus the sealing seat of the valve are part of the pressure reducer assembly. Thus, the pressure reducer assembly can be mounted, in particular tool-free, to any fluid outflow device without the need to geometrically modify or change the fluid outflow device or the fluid inflow device. All components required for pressure reduction can be integrated within the pressure reducer assembly. In addition, the pressure reducer assembly can be shaped compact.

[0015] According to the present application, the terms “outer” or “inner” can be used with respect to a central axis extending through the center of the pressure reducer assembly and between the inlet section and the outlet section of the pressure reducer assembly. Further, each of the different components of the pressure reducer assembly comprising an inner cavity or hollow region can comprise a respective inner surface and outer surface, inner wall and outer wall, etc.

[0016] The pressure compensation hole according to the present application connecting the pressure reducer chamber and the outer surface of the pressure reducer body can represent that an air passage can be formed inside the pressure reducer body. In particular, the pressure compensation hole can have a circular cross-section and can extend in a radial direction with respect to the central axis. It should be emphasized that the pressure compensation hole can extend at an angle to the radial direction with respect to the central axis, depending on the desired application. Furthermore, it should be emphasized that the pressure compensation hole can comprise a non-circular cross-section, such as a triangular, drop-shaped or rectangular cross-section.

[0017] The valve at the inlet section of the pressure reducer assembly is configured to selectively allow and disallow fluid flow through the pressure reducer assembly. The valve can selectively allow fluid access to the outlet section in order to maintain a constant output pressure of the pressure reducer assembly. The piston rod can be swung to temporarily or selectively block the supply of fluid from the inlet section towards the outlet section.

[0018] According to the present application, the pressure reducer assembly is configured such that, when the pressure reducer assembly is mounted to the fluid outflow device and the fluid inflow device, the air pressure inside the pressure reducer chamber can be compensated, in particular exclusively, via the pressure compensation hole and the complementary threads of the fluid outflow device and the fluid inflow device. In particular, the gap between the threads can serve as part of the passage for air to flow into and out of the pressure reducer chamber. Furthermore, the gap between the outer surface of the pressure reducer body and the inner surface of the fluid outflow device or the fluid inflow device can serve as another part of the passage for air. Thereby, it can be ensured that no dirt and foreign objects can enter the pressure compensation hole. In addition, each of the two previously mentioned gaps is small, such that it can be ensured that a water-tight seal between the pressure reducer assembly and the fluid outflow device and / or the fluid inflow device. In addition, the pressure reducer assembly can be retrofitted or mounted to different fluid inflow devices and / or fluid outflow devices without any geometrical restrictions imposed by external pressure compensation holes in the fluid inflow device or the fluid outflow device.

[0019] According to exemplary embodiments of the present application, the pressure reducer body, in particular the outer surface of the pressure reducer body, is configured to be mountable, in particular screwlessly and detachably, to a fluid outflow device, in particular a water application device, and / or to be mountable, in particular screwlessly and detachably, to a fluid inflow device.

[0020] Thus, the pressure reducer body can be quickly and ergonomically mounted by clamping the pressure reducer assembly between the fluid outflow device and the fluid inflow device. At the same time, air can flow around at least a portion of the circumference of the pressure reducer body between the outer surface of the pressure reducer body and the inner surface of the fluid outflow device and / or the fluid inflow device to achieve pressure compensation in the pressure reducer chamber.

[0021] According to an exemplary embodiment of the present application, the pressure reducer body comprises an outer surface and an inner surface, and the pressure reducer body extends as a solid body between the outer surface and the inner surface, and without a gap or a larger opening.

[0022] The pressure reducer body extending as a solid body between the outer surface and the inner surface and without a gap or a larger opening according to the present application can mean that the outer body or housing of the pressure reducer body can be formed as a solid body comprising neither an internal gap nor an opening or cavity. Instead, the pressure reducer body can comprise an outer shell which can have a pressure reducer bore formed therein and extending between the inner surface and the outer surface. In other words, the pressure reducer bore can be the only opening provided in the housing or peripheral shape of the pressure reducer body.

[0023] According to an exemplary embodiment of the present application, the outer surface of the pressure reducer body is formed smooth and without threads. Thus, the pressure reducer body can be quickly and ergonomically installed by clamping the pressure reducer assembly between the fluid outflow device and the fluid inflow device. At the same time, air can flow around at least a portion of the circumference of the pressure reducer body between the outer surface of the pressure reducer body and the inner surface of the fluid outflow device and / or the fluid inflow device to achieve pressure compensation in the pressure reducer chamber.

[0024] However, it should be emphasized that according to another exemplary embodiment of the present application, at least one pressure compensation groove can be formed in the outer surface of the pressure reducer body. However, at the same time, the remaining outer surface of the pressure reducer body can be formed smooth. The pressure reducer groove can provide improved pressure compensation by having different manufacturing tolerances of the pressure compensation bore. The pressure compensation groove can particularly extend between the pressure compensation bore and the axial end of the pressure reducer body close to the inlet section and extend parallel to the central axis. However, it can be emphasized that the pressure compensation groove can extend helically around the pressure reducer body in a zigzag or wave shape.

[0025] According to an exemplary embodiment of the present application, the spring element is a biasing member. The spring element can be functionally coupled with the piston rod and can be configured to allow axial movement of the piston rod along the central axis. The spring element can also be a compression spring, a disc spring or any other known type of spring typically used to operate a piston rod.

[0026] According to an exemplary embodiment of the present application, the spring element is a disc spring. By providing the spring element as a disc spring, the pressure reduction assembly can comprise a reduced axial extension and thus a reduced axial receiving space. Thus, a fluid outflow device having a small or reduced length can be equipped with the pressure reduction assembly.

[0027] According to an exemplary embodiment of the present application, the sealing element is configured to form an axial seal between the inner wall section, in particular the axial sealing protrusion, of the fluid outflow device and the outer surface of the piston rod at the outlet section and / or the sealing element is a diaphragm.

[0028] The axial sealing protrusion according to the present application can represent a portion of the inner wall section which protrudes radially towards the central longitudinal axis of the fluid outflow device, thereby forming an axial sealing surface for the sealing element as a diaphragm. In particular, the axial sealing protrusion of the inner wall section protrudes perpendicular to the central longitudinal axis of the fluid outflow device.

[0029] The sealing element can reliably not allow a backflow of fluid through the outlet section. Thereby, possible leaks can be eliminated and the overall efficiency of the pressure reducer assembly assembled in / mounted to the fluid outflow device and / or the fluid inflow device can be improved. Furthermore, the sealing can prevent air from entering the outlet section, thereby preventing the mixed air from the pressure compensation hole.

[0030] By providing a pressure reducer assembly comprising a diaphragm as a sealing element and a disc spring as a spring element, a compact pressure reducer assembly can be provided which requires a small axial installation area.

[0031] According to another exemplary embodiment of the present application, the spring element is a compression spring. A compression spring is a standardized component which is cheap at the same time and is also popular. Thus, a cost-effective and reliable pressure reducer assembly can be provided.

[0032] According to another exemplary embodiment of the present application, the sealing element is configured to form a radial seal between the inner wall section, in particular the planar inner surface, of the fluid outflow device and the outer surface of the piston rod at the outlet section of the pressure reducer assembly and / or the sealing element is an O-ring. The O-ring and / or the described radial seal can prevent air from entering the outlet section. Thereby, the mixed air from the pressure compensation hole can be prevented. The O-ring can allow a reliable and cost-effective way to provide a sealing.

[0033] By providing a pressure reducer assembly comprising an O-ring as a sealing element and a compression spring as a spring element, a pressure reducer assembly can be allowed to be made of standardized components. Thus, a reliable and cost-effective pressure reducer assembly can be provided.

[0034] According to another exemplary embodiment of the present application, the sealing element is configured to form an axial seal between the inner wall section, in particular the axial sealing protrusion, of the fluid outflow device and the outer surface of the piston rod at the outlet section and / or the sealing element is a diaphragm. In addition, the spring element is a compression spring.

[0035] By providing a pressure reducer assembly comprising a diaphragm as a sealing element and a compression spring as a spring element, it is possible to provide a reliable and widely accepted spring element with an improved leakage-eliminating sealing element. Thereby, the overall efficiency of the pressure reducer assembly assembled in an application device can be improved.

[0036] According to an exemplary embodiment of the present disclosure, the Belleville spring supports the diaphragm over substantially the entire radial extension of the diaphragm. Thereby, an improved diaphragm support can be provided.

[0037] According to an exemplary embodiment of the present disclosure, the Belleville spring supports the diaphragm over substantially the entire radial extension of the diaphragm. Thereby, an improved diaphragm support can be provided.

[0038] According to an exemplary embodiment of the present disclosure, the shape of the Belleville spring substantially corresponds to the shape of the diaphragm. The Belleville spring can prevent the diaphragm from slipping out due to fluid forces.

[0039] According to an exemplary embodiment of the present disclosure, the pressure reducer assembly is configured to generate a constant output pressure of at least 1.5 bar, in particular at least 3 bar, more particularly substantially 4 bar. The constant output pressure can be predetermined and / or pre-set during the manufacture of the pressure reducer assembly according to the application requirements of the fluid outflow device and / or the fluid inflow device into which the pressure reducer assembly is mounted. Alternatively, the pre-setting of the constant output pressure can be performed during the assembly or mounting of the pressure reducer assembly in the fluid outflow device and / or the fluid inflow device.

[0040] According to another exemplary embodiment of the present disclosure, the pressure reducer body comprises a collar having a greater radial extension than the pressure reducer body. The collar is formed at an axial end of the pressure reducer body adjacent to the outlet section of the pressure reducer assembly. Further, a groove is formed in the collar, wherein the groove extends over the entire radial extension of the collar and the groove is formed to communicate with the complementary thread of the fluid outflow device and the fluid inflow device. Thus, if the pressure reducer assembly can be more reliably mounted to the fluid outflow device, for example, when the pressure reducer assembly is mounted to a water spigot, the pressure reducer can be safely and reliably mounted to the water spigot.

[0041] The collar according to the present disclosure can be formed such that the pressure reducer assembly can be reliably and easily mounted to the fluid outflow device or the fluid inflow device. The groove is formed in the collar to communicate with the complementary thread of the fluid inflow device and the fluid outflow device when the pressure reducer assembly is mounted in the fluid outflow device or the fluid inflow device.

[0042] According to another aspect of the present application, a fluid application assembly is provided. The fluid application assembly comprises the above-mentioned pressure reducer assembly, a fluid outflow device configured to direct fluid out of the pressure reducer assembly and a fluid inflow device configured to couple the fluid outflow device to a fluid connection, in particular a hose or a line and configured to direct fluid into the pressure reducer assembly. The fluid outflow device is in particular a coupling joint of a sprayer, a sprinkler, a shower head, a fog shower head, a spray gun, a drip irrigation component or a water spigot. The fluid inflow device is in particular a connector joint or a water supply line of a water spigot. The pressure reducer assembly is detachably mounted, preferably screwlessly detachably mounted into an inlet portion of the fluid outflow device such that the outlet section of the pressure reducer assembly is fluidly coupled to the inlet portion of the fluid outflow device. The pressure reducer assembly of the present disclosure can be applied with a fluid outflow device or a fluid inflow device that can be used in horticultural operations. Thus, an increased service life can be provided for a horticultural tool and water can be more evenly spread with the horticultural tool. However, the fluid outflow device or the fluid inflow device can be used in any other industrial or household application.

[0043] According to exemplary embodiments of the present application, the pressure reducer assembly is detachably mounted, preferably screwlessly detachably mounted into an inlet portion of the fluid outflow device such that the outlet section of the pressure reducer assembly is fluidly coupled to the inlet of the fluid outflow device. The pressure reducer assembly is disposed close to the inlet of the fluid outflow device such that the fluid outflow device receives fluid at a constant reduced pressure to efficiently perform its operation, such as producing a constant spray pattern or supplying water at a constant pressure to a hose connected to a water spigot. Additionally, by being screwlessly detachable, the pressure reducer assembly can be retrofitted onto, for example, an already owned fluid outflow device or fluid inflow device, in particular an already owned horticultural tool, without the need to use any tools.

[0044] According to exemplary embodiments of the present application, the fluid application assembly further comprises a further sealing element, in particular an axial flat seal. The further sealing element is clamped between a sealing surface of the fluid inflow device and a substantially flat axial inlet end face of the pressure reducer body. The further sealing element can prevent leakage of fluid directed to the pressure reducer assembly via the fluid inflow device and ensure efficient working of the pressure reducer assembly and, thus, of the fluid outflow device on which the pressure reducer assembly is mounted. Thereby, the fluid application assembly can be provided with a retrofittable pressure reducer assembly.

[0045] According to an exemplary embodiment of the present application, the fluid outflow device is mounted, in particular screwed, to the fluid inflow device such that the axial inlet end face of the pressure reducer body is sealed via a further sealing element, more particularly via an axial flat seal, against a sealing surface of the fluid inflow device, wherein an axial air gap is formed between the axial inlet end face of the pressure reducer body and the axial inlet end face of the fluid outflow device. The axial inlet end face of the pressure reducer body and the axial end face of the fluid outflow device are axially spaced apart from each other, in particular by substantially 1 mm, wherein a pressure compensation is established from the pressure compensation bore via the axial air gap and the complementary threads of the fluid outflow device and the fluid inflow device. Thereby, foreign elements can be reduced from entering the pressure reducer chamber and, thus, the service life of the pressure reducer assembly and the entire fluid application assembly can be increased at least. Furthermore, potential noise generated during pressure compensation can be reduced. The length of the pressure reducer assembly and the length of the inlet portion of the fluid outflow device are complementary to each other such that, when the pressure reducer assembly is inserted into the inlet section of the fluid outflow device, the air gap is determined by the distance of the axial end face of the fluid outflow device and the axial inlet end face of the pressure reducer body.

[0046] According to an exemplary embodiment of the present application, the outer surface of the fluid outflow device or the fluid inflow device is formed without the pressure compensation bore. Thereby, unwanted foreign elements can be prevented from clogging the pressure compensation bore and affecting the operation of the pressure reducer assembly mounted in the fluid outflow device. In addition, already owned conventional fluid outflow devices can be used in the fluid application assembly.

[0047] According to another exemplary embodiment of the present application, the fluid outflow device is mounted, in particular screwed, to the fluid inflow device such that the collar of the pressure reducer body is axially clamped between the axial end face of the fluid inflow device and the sealing element, wherein the collar has a greater radial extension than the outer surface of the pressure reducer body and is formed at the axial end of the pressure reducer body adjacent to the outlet section of the pressure reducer chamber. A groove is formed in the collar and extends over the entire radial extension of the collar, wherein the groove is in communication with the complementary threads of the fluid outflow device and the fluid inflow device. A pressure compensation is established from the pressure compensation bore via the groove and the complementary threads of the fluid outflow device and the fluid inflow device.

[0048] According to the present application, the pressure reducer assembly can be reliably mounted to the fluid application assembly and is capable of reliably providing a constant pressure. Furthermore, foreign elements can be reduced from entering the pressure reducer chamber and, thus, the service life of the pressure reducer assembly and the entire fluid application assembly can be increased at least. Furthermore, potential noise generated during pressure compensation can be reduced.

[0049] Before the application is discussed in view of the drawings, the application will be briefly discussed in general. A compact pressure reducer assembly can be provided. The pressure reducer assembly can be used in various fluid inflow devices or fluid outflow devices, such as, but not limited to, a sprayer, a sprinkler, a shower head, a fog shower head, a lance, a water spigot, or a drip irrigation component. The pressure reducer assembly can be located directly in the area of a fluid inflow device, such as a connector nipple configured for coupling a fluid outflow device to a fluid connection, or the pressure reducer assembly can be held by the fluid inflow device. The pressure reducer assembly can be used in OGS (Original Gardena System) connection devices.

[0050] The compact pressure reducer assembly according to the application can have a dirt prevention technology. The pressure reducer assembly according to the application can relieve the pressure of a component of a fluid application assembly, for example an irrigation assembly, such as a shower plate or a valve, at high pressures greater than 10 bar magnitude. The pressure reducer assembly according to the application can provide a constant spray pattern over the entire pressure range of 3 bar to 12 bar. The pressure reducer assembly can be invisibly integrated in a fluid outflow device, for example an application device, or held in place by a fluid inflow device, for example a connection element. Furthermore, the pressure reducer assembly according to the application can work without a vent hole in the housing of the fluid outflow device, i.e. the housing of a sprinkler for example. Thus, the fluid inflow device or the fluid outflow device can remain unchanged. In addition, the fluid inflow device or the fluid outflow device can also be used without the pressure reducer assembly detached (for example, if the fluid outflow device or the fluid inflow device is used only at a small available line pressure). The pressure reducer assembly according to the application can be retrofitted to existing fluid outflow devices and / or existing fluid inflow devices. The pressure reducer assembly according to the application can allow gentle opening of the valve even at an inlet pressure of 12 bar, since there is only 3 bar at the valve assembly. Pressure shocks on the valve assembly and the housing of the fluid outflow device and / or the fluid inflow device can be prevented. Thus, a breakage in the housing can be prevented and the housing can be manufactured using recycled or recyclable plastic. In addition, a thinner wall thickness of the fluid outflow device or the fluid inflow device is possible. The pressure reducer assembly according to the application can comprise simple and cost-effective stamped parts. In addition, the pressure reducer assembly according to the application can be used as a freeze protection element or make existing freeze compensation redundant. Furthermore, cost-neutral production is possible.

[0051] According to an exemplary embodiment of the application, the valve comprises a seal formed as an O-ring. Thereby, the piston rod is sealed radially by the O-ring when the valve is closed. Thus, the seal can be essentially 100% tight even when the valve is closed or if zero flow is applied, since the maximum pressure can be measured in front of (upstream of) the valve (for example 3 bar even at an inlet pressure of 12 bar).

[0052] According to another exemplary embodiment, the pressure reducer assembly can include a slotted disc spring as a spring element and a silicone flat septum as a sealing element. Further, the pressure reducer assembly according to the exemplary embodiment of the present application can include a pressure compensation hole only on the pressure reducer body. In addition, the axial inlet end face of the pressure reducer body can be located about 1 mm above the axial end face of the fluid outflow device. The fluid inflow device (OGS fitting) presses the flat seal against the pressure reducer body. Thus, the flat seal is sealed only on the pressure reducer body, not on the conventional sealing rim of the fluid outflow device. Further, the septum is axially clamped between the axial sealing protrusion of the housing of the fluid outflow device and the pressure reducer body, and thus can be sealed substantially 100%. Thus, pressure compensation can be made through the multiple threads on the fluid outflow device, the side gap between the multiple threads on the fluid inflow device, and the axial air gap between the axial end face of the fluid outflow device and another sealing element. Without the pressure reducer assembly, the fluid outflow device and the fluid inflow device (e.g., OGS connector) can be assembled, and another sealing element is sealed on the axial end face of the fluid inflow device.

[0053] According to another exemplary embodiment of the present application, the septum piston rod assembly can be replaced with a piston rod assembly having a radial sealing element (e.g., a lip seal, a square ring, or an O-ring). Further, the disc spring element can be replaced with a compression spring element.

[0054] In addition, the pressure reducer body can support itself directly on a diameter jump on the inner wall section of the fluid outflow device. The diameter jump can be a region where the fluid outflow device has a change in diameter. The diameter jump can be an edge on the inner wall surface of the fluid outflow device described above.

[0055] Other features and aspects of the present application will be apparent from the following description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0056] The present application will be described in more detail with reference to the accompanying drawings, in which:

[0057] Figure 1 A partial cross-sectional view of a fluid application assembly according to an exemplary embodiment of the present disclosure is shown;

[0058] Figure 2 A cross-sectional view of fluid coupling between a fluid outflow device and a fluid inflow device according to an exemplary embodiment of the present disclosure is shown;

[0059] Figure 3 An exploded view of a circle-out portion of Figure 1 according to an exemplary embodiment of the present disclosure is shown;

[0060] Figure 4A and Figure 4B A cross-sectional view is shown of the fluid connection between a fluid outflow device, a pressure reducing device, and a fluid inflow device according to an exemplary embodiment of the present disclosure;

[0061] Figure 5A and Figure 5B A cross-sectional view of a pressure reducer assembly according to an exemplary embodiment of the present disclosure is shown, wherein the piston rod presents an upward stroke and a downward stroke, respectively;

[0062] Figure 6 It shows Figure 4A A cross-sectional view illustrating a stress compensation route according to an exemplary embodiment of the present disclosure;

[0063] Figure 7 A cross-sectional view of a pressure reducer assembly installed in a fluid application assembly according to an exemplary embodiment of the present disclosure is shown;

[0064] Figure 8A A perspective view is shown of a fluid connection between a fluid outflow device and a fluid inflow device according to an exemplary embodiment of the present disclosure;

[0065] Figure 8B An exemplary embodiment of the present disclosure is shown for installation to Figure 8A A cross-sectional view of the pressure reducing device assembly of the fluid outflow device and the fluid inflow device;

[0066] Figure 8C Exemplary embodiments according to this disclosure are shown. Figure 8B Exploded view;

[0067] Figure 8D An installation according to an exemplary embodiment of the present invention is shown. Figure 8A Another cross-sectional view of the pressure reducing device assembly of the fluid outflow device and the fluid inflow device;

[0068] Figure 9A A cross-sectional view of a pressure reducing device assembly installed in a water-bearing insert according to an exemplary embodiment of the present disclosure is shown;

[0069] Figure 9B Exemplary embodiments according to this disclosure are shown. Figure 9A Exploded view;

[0070] Figure 9C Exemplary embodiments according to this disclosure are shown. Figure 9A Partial exploded view;

[0071] Figure 10A A cross-sectional view of a pressure reducer assembly according to an exemplary embodiment of the present disclosure is shown; and

[0072] Figure 10B A side cross-sectional view of a pressure reducer assembly is shown in accordance with an example embodiment of the present disclosure. DETAILED DESCRIPTION

[0073] The application will be described more fully hereinafter with reference to the accompanying drawings, in which example embodiments of the application incorporating one or more aspects of the present application are shown. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art. For example, one or more aspects of the application can be utilized in other embodiments and even other types of structures and / or methods. In the drawings, like numbers refer to like elements.

[0074] Certain terminology is used herein for convenience only and does not be taken as a limitation on the application. For example, "upper", "lower", "front", "back", "side", "longitudinal", "lateral", "transverse", "upward", "downward", "forward", "rearward", "lateral", "left", "right", "horizontal", "vertical", "upward", "inward", "outward", "top", "bottom", "higher", "above", "below", "center", "middle", "centered", "between", "end", "adjacent", "proximate", "near", "distal", "remote", "radial", "circumferential", and the like describe the configuration shown in the drawings. Components can be oriented in any direction and the terminology should be understood as encompassing such variations unless otherwise specified.

[0075] Figure 1 A fluid application assembly 100 in accordance with an example embodiment of the present application is illustrated. The fluid application assembly 100 includes a fluid flow out device 200. The fluid flow out device 200 can be used to provide fluid for various industrial and domestic applications such as, but not limited to, irrigation. The fluid is preferably a liquid and more preferably water as water is the most commonly used fluid in various applications such as lawn watering, cleaning, firefighting, etc. Accordingly, in the present disclosure, fluid or liquid is used interchangeably for water and vice versa.

[0076] The fluid flow out device 200 is particularly a water application device such as a sprayer, a sprinkler, a shower head, a misting shower head, a spray gun, a drip irrigation component or a coupling joint 214 of a water spigot 100 which can be used to spray, sprinkle or simply provide water for different well-known applications in a non-limiting manner. Figure 1 The fluid flow out device 200 shown in FIG. 1 is a sprayer head.

[0077] The fluid application assembly 100 can receive water for operation from a water source (not shown). The water source can advantageously be provided with a valve to regulate the outflow of water from the water source. Further, the water source can be provided with an automatic operable attachment that can automatically regulate the outflow of water from the water source. For example, the water source can be provided with a watering computer. The watering computer can allow and regulate the outflow of water from the water source according to the time of day, preset water outflow timing, and other factors. The fluid application assembly 100 includes a fluid outflow device 200, a fluid inflow device 400, and a pressure reducer assembly 300.

[0078] Figure 2 A cross-sectional view of the fluid coupling between the fluid outflow device 200 and the fluid inflow device 400 according to an example embodiment of the present disclosure is shown. The fluid outflow device 200 includes an inlet portion 204 that includes an inner surface 206 and an outer surface 208. The inner surface 206 is opposingly disposed from the outer surface 208. In addition, the inlet portion 204 includes an axial sealing protrusion 207. An axial end face 210 seals against another sealing element 404. Threads 202, in particular external threads 202, are formed on the outer surface 208 and extend over at least a portion of the longitudinal / axial extension of the outer surface 208. The fluid inflow device 400, in particular the connector nipple, is fluidly coupled to the fluid outflow device 200 (also as shown in Figure 1 The fluid inflow device 400 includes an inner surface 408 and an outer surface 410. The inner surface 408 is opposingly disposed from the outer surface 410. When the fluid inflow device 400 is fluidly coupled with the fluid outflow device 200, the inner surface 408 of the fluid inflow device 400 faces the outer surface 208 of the fluid outflow device 200. In other words, when the fluid inflow device 400 is fluidly coupled with the fluid outflow device 200, the outer surface 410 of the fluid inflow device 400 faces away from the outer surface 208 of the fluid outflow device 200.

[0079] The fluid inflow device 400 includes a plurality of threads or teeth 406 that engage with a corresponding plurality of threads or teeth 202 of the fluid outflow device 200 to form the fluid coupling between the fluid inflow device 400 and the fluid outflow device 200.

[0080] The fluid inflow device 400, as shown in Figure 2 is configured for coupling the fluid outflow device 200 to a water connection, in particular a hose (not shown) that is fluidly coupled with a water source. Figure 2The fluid inflow device 400 in the example embodiment is a connector nipple. The fluid inflow device 400 includes an O-ring 402 for fluid-tight coupling with a water connection such as a hose. The O-ring 402 is disposed in an annular channel disposed on an outer surface 410 of the fluid inflow device 400. The fluid inflow device 400 can advantageously be designed to selectively allow water (received from a water source) to pass therethrough only when it is fluidly coupled with the fluid outflow device 200.

[0081] In addition, as Figure 2 illustrated, another sealing element 404 is positioned on a sealing surface 412 of the fluid inflow device 400. The other sealing element 404 contacts the threads 406 formed on the inner surface 408 on its radially outer surface. The other sealing element 404 can provide a seal using a sealing gasket or any other known and readily available sealing member (or sealing element). As Figure 2 illustrated, the other sealing element 404 is an axially flat sealing element 404. The other sealing element 404 can prevent water received from a water source from leaking via the fluid inflow device 400 towards a fluid coupling region between the fluid inflow device 400 and the fluid outflow device 200 and then further leaking to an external environment.

[0082] In addition, the water received from a water source can be provided at a pressure that is equal to or greater than the output pressure requirement of the fluid outflow device 200. The pressure of the water received from a water source can also fluctuate. The fluid application assembly 100 also includes a pressure reducer assembly 300 for reducing the pressure of the water received from a water source, as Figure 1 , Figure 3 , Figure 4A and Figure 4B illustrated. In the example embodiment illustrated, the pressure reducer assembly 300 is placed proximate to or at the inlet portion 204 of the fluid outflow device 200. The pressure reducer assembly 300 is placed between the fluid inflow device 400 and the fluid outflow device 200, as Figure 1 , Figure 3 , Figure 4A and Figure 4B illustrated. The pressure reducer assembly 300, the fluid inflow device 400, and the fluid outflow device 200 are all placed along a central axis X-X’ (illustrated in Figure 3 ). However, it can be appreciated that the pressure reducer assembly 300, the fluid inflow device 400, and the fluid outflow device 200 can be placed along different axes depending on application requirements or feasibility constraints and other factors.

[0083] In an installed state, as Figure 1 , Figure 4A and Figure 4BAs shown, the pressure reducer assembly 300 is completely surrounded by the fluid inflow device 400 and the fluid outflow device 200. The pressure reducer assembly 300 is annularly separated from the external environment by the fluid inflow device 400 and the fluid outflow device 200. The fluid outflow device 200 is in fluid communication with the fluid inflow device 400 via the pressure reducer assembly 300. The pressure reducer assembly 300, the fluid inflow device 400, and the fluid outflow device 200 can operate together to provide efficient operation of the fluid application assembly 100.

[0084] The pressure reducer assembly 300 includes a pressure reducer body 310 (as shown in Figure 4A , Figure 4B ). The pressure reducer body 310 of the present disclosure is a cylindrical body having a central axis X-X’ along a corresponding axial direction of the pressure reducer assembly 300. However, in alternative implementations of the present disclosure, the pressure reducer body 310 can have any other shape without limiting the scope of the present disclosure. The pressure reducer body 310 can be made of brass, plastic, and / or aluminum. Various grades of stainless steel, such as 303, 304, and 316, can also be used to manufacture the pressure reducer body 310. However, any other material that can be used to cope with various fluids and operating environments can be employed to make or manufacture the pressure reducer body 310. Further, any suitable manufacturing process can be employed to manufacture the pressure reducer body 310 without limiting the scope of the present disclosure.

[0085] The pressure reducer body 310 includes an outer surface 312 and an inner surface 314 (as shown in Figure 4A , Figure 4B , Figure 5A , and Figure 5B ). The outer surface 312 is disposed opposite the inner surface 314. The outer surface 312 faces the inner surface 206 of the inlet portion 204 of the fluid outflow device 200. The inner surface 314 of the pressure reducer body 310 faces away from the inner surface 206 of the fluid outflow device 200 (as shown in Figure 4A , and Figure 4B ). The outer surface 312 of the pressure reducer body 310, and thus the pressure reducer body 310 itself, is obscured by the inlet portion 204 of the fluid outflow device 200 or the inner surface 206 of the fluid outflow device 200.

[0086] The outer surface 312 of the pressure reducer body 310 is configured to be screwlessly, detachably mounted to the fluid outflow device 200. The outer surface 312 of the pressure reducer body 310 is formed smooth and without threads and engages with the inner surface 206 of the fluid outflow device 200. The pressure reducer body 310 can be quickly and ergonomically mounted to the fluid outflow device 200 by adapting its outer diameter according to the inner diameter of the inlet portion 204 of the fluid outflow device 200. In other words, the pressure reducer assembly 300 is detachably, preferably screwlessly mounted into the inlet portion 204 of the fluid outflow device 200 so that the outlet section 324 of the pressure reducer assembly 300 is fluidically coupled to the inlet defined by the inlet portion 204 of the fluid outflow device 200.

[0087] Another sealing element 404 mounted between the fluid inflow device 400 and the fluid outflow device 200 is clamped between a sealing surface 412 (as shown in Figure 4A and Figure 4B ) of the fluid inflow device 400 and a substantially planar axial inlet end face 326 (as shown in Figure 4A , Figure 4B , Figure 5A and Figure 5B ) of the pressure reducer body 310. The other sealing element 404 is clamped between the sealing surface 412 (as shown in Figure 4A and Figure 4B ) and the substantially planar axial inlet end face 326. The other sealing element 404 is firmly pressed in a direction parallel to the direction of the central axis X-X’ by the fluid inflow device 400 and the pressure reducer body 310. The other sealing element 404 is axially pressed between the fluid inflow device 400 and the pressure reducer body 310 for sealing.

[0088] The other sealing element 404 according to the exemplary embodiments illustrated in Figure 4A and Figure 4B comprises a larger radial extension than the radial extension of the pressure reducer body 310. The radial extension of the other sealing element 404 can depend on application requirements and other factors.

[0089] Another sealing element 404 prevents leakage of water received via the fluid inflow device 400 and ensures efficient working of the pressure reducer assembly 300 and thus the fluid outflow device 200 on which the pressure reducer assembly 300 is mounted. The other sealing element 404 is configured to allow all water received via the fluid inflow device 400 to reach the pressure reducer assembly 300 and not to leak radially towards the fluid coupling between the fluid outflow device 200 and the fluid inflow device 400. Further, the other sealing element 404 is mountable together with the pressure reducer assembly 300 to the fluid outflow device 200 and the fluid inflow device 400 such that in the mounted state, an axial air gap G is provided which allows increased air passage therethrough. The axial air gap G is provided between the axial inlet end face 326 of the pressure reducer body 320 and the axial end face 210 of the fluid outflow device 200. The pressure reducer assembly 300 is mounted to the fluid outflow device 200 such that the axial inlet end face 326 of the pressure reducer body 320 extends axially above the axial end face 210 of the fluid outflow device 200. In particular, the axial inlet end face 326 extends axially about 1 mm above the axial end face 210. Thus, the axial air gap G is substantially 1 mm.

[0090] Further, the pressure reducer body 310 defines at least a portion of the pressure reducer chamber 320 along a central axis X-X’ (as shown in Figure 4A , Figure 4B , Figure 5A and Figure 5B shown). The inner surface 314 of the pressure reducer body 310 defines an annular boundary wall of the pressure reducer chamber 320. The pressure reducer assembly 300 comprises an inlet section 322 and an outlet section 324 fluidically coupled with the inlet section 322. The inlet section 322 is configured to allow fluid to flow into the pressure reducer assembly 300 and the outlet section 324 is configured to allow fluid to flow out of the pressure reducer assembly 300. The pressure reducer chamber 320 extends between the inlet section 322 and the outlet section 324. As Figure 4A and Figure 4B shown, the inlet section 322 is parallel to or aligned with the outlet section 324. In alternative embodiments, the inlet section 322 is not parallel to or not aligned with the outlet section 324. In alternative embodiments, the outlet section 324 extends at an angle between about 0 degrees and 45 degrees relative to the extension of the inlet section 322. In alternative embodiments, the inlet section 322 and the outlet section 324 are offset relative to each other. The relative position of the inlet section 322 and the outlet section 324 can depend on application requirements, feasibility constraints, application device design, connection element design or efficiency, and other factors. Additionally, as Figure 4A and Figure 4B exemplarily illustrated, the inlet section 322 is in direct fluid contact with the fluid inflow device 400 and the outlet section 324 is in direct fluid contact with the fluid outflow device 400.

[0091] Furthermore, as Figure 4A , Figure 4B , Figure 5A and Figure 5B illustrate, the pressure reducer assembly 300 includes a valve 328. The valve 328 is disposed at the inlet section 322 of the pressure reducer assembly 300 (as Figure 4A and Figure 4B illustrate). Furthermore, the valve 328 selectively allows and does not allow water to pass through the pressure reducer assembly 300 via the inlet section 322. The valve 328 selectively allows water to pass to the outlet section 324, such as to support maintaining a constant output pressure of the pressure reducer assembly 300 and, thus, the fluid application assembly 100. Accordingly, the valve 328 includes a seal seat 339 that is configured to allow and not allow fluid flow through the pressure reducer assembly 300. The seal seat 339 is configured to interact with an end of the biasing member piston rod 322 to not allow fluid flow through the pressure reducer assembly 300.

[0092] As can be seen in Figure 5A and Figure 5B , the valve 328 is mounted to the inlet section 322 by a threaded connection. In other words, the valve 328 is threaded to the inlet section 322. The threaded connection / coupling between the valve 328 and the inlet section 322 can be established by corresponding threads on the valve 328 on one hand and on the pressure reducer body 310 on the other hand. Alternatively, the threaded coupling can be established by cutting threads on the valve 328 to thread the valve 328 to internal threads of the pressure reducer body 310. Both can allow the valve 328 to move relative to the inlet section 322 along a longitudinal direction of the pressure reducer assembly 300, for example for adjustment purposes. The threaded connection / threaded coupling between the valve 328 and the inlet section 322 allows the valve 328 to move relative to the inlet section 322 along a direction of the central axis X-X’. Movement of the valve 328 along the longitudinal direction of the pressure reducer assembly 300 can also help adjust the constant output pressure generated by the pressure reducer assembly 300. The valve 328 also includes a seal 330. The seal 330 can be an O-ring as Figure 4A , Figure 4B , Figure 5A and Figure 5B illustrate.

[0093] Furthermore, as Figure 4A , Figure 4B , Figure 5A and Figure 5B illustrate, the pressure reducer assembly 300 as a whole is toollessly, detachably mounted to the fluid outflow device 200 and the fluid inflow device 400.

[0094] In the example embodiment as illustrated, i.e. in Figure 4A , Figure 4B ,Figure 5A and Figure 5B In the example embodiment, the valve 328 extends along the central axis X-X’ of the pressure reducer body 310. In alternative embodiments, the valve 328 can extend parallel to the central axis X-X’ of the pressure reducer body 310. In another alternative embodiment, the valve 328 can extend offset from the central axis X-X’ of the pressure reducer body 310. In yet another example embodiment, the valve 328 can extend at an angle to the central axis X-X’ of the pressure reducer body 310. Without limiting the scope of the disclosure in any way, the valve 328 can have an orientation relative to the longitudinal direction of the pressure reducer body 310.

[0095] According to example embodiments of the disclosure, the inlet section 322 can include a filter element (not shown) located upstream of the valve 328. The valve 328 can be located downstream of the filter element in the direction of water flow. The filter element is operably coupled to the inlet section 322 such that it filters water received from the water source before it enters the pressure reducer chamber 320. The filter element prevents clogging of the inlet section 322 and thereby facilitates smooth operation of the pressure reducer assembly 300 and the fluid administration assembly 100. The filter element can be coupled to the inlet section 322 by any means known in the relevant art. For example, the filter element can be glued to the inlet section 322.

[0096] Further, the filter element can have any shape, size, and type as required by the application. In example embodiments, the filter element can be a surface filter made of a tight woven fabric or treated paper having a uniform pore size. Water from the water source flows through the pores of the filter element and contaminants are blocked on the surface of the filter element. In some embodiments, the filter element can be a depth filter made of a fabric or fiber layer that provides many tortuous paths for fluid to flow through. The pores or channels are larger than the nominal size of the filter element to retain particles in the depth of the media rather than on the surface. In example embodiments, the filter element can be 5 micron, woven mesh, micron grade, porous metal, or magnetic type. The micron grade and 5 micron elements have non-cleanable filter media and can be disposed of when they are removed, while the porous metal, woven mesh, and magnetic filter elements are designed to be cleaned and reused.

[0097] Continuing with reference to Figure 4A , Figure 4B , Figure 5A and Figure 5BThe pressure reducer assembly 300 further comprises a biasing member piston rod 332. The biasing member piston rod 332 is a hollow rod that allows water to pass through, the pressure of which will be reduced in the pressure reducer assembly 300 from the inlet section 322 to the outlet section 324. The piston rod 332 has a center Y along the central axis X-X’. The piston rod 332 connects the inlet section 322 with the outlet section 324. The piston rod 332 allows fluid, in particular water, to flow from the inlet section 322 towards the outlet section 324. The piston rod 332 is located downstream of the valve 328. When the valve 328 is in the closed position and prevents water from flowing through the piston rod 332, the end of the biasing member piston rod 332 interacts with the sealing seat 339 and the seal 330 axially seals the piston rod 332, in particular the circular axial end face of the piston rod 332. Thereby, fluid is prevented from flowing through the piston rod 332 and thus through the pressure reducer assembly 300.

[0098] The spring elements 334, 335 are biasing members. The spring elements 334, 335 are functionally coupled with the piston rod 332 and are configured to allow the piston rod 332 to move axially along the central axis X-X’. In an exemplary embodiment, the spring elements 334, 335 are wound along the outer peripheral surface of the piston rod 332. In another exemplary embodiment, the biasing member can comprise a plurality of similar spring elements 334, 335 that are positioned equidistantly adjacent to each other along the outer peripheral surface of the piston rod 332, such that the plurality of spring elements 334, 335 are oriented along the longitudinal direction of the pressure reducer assembly 300. The spring elements 334, 335 can provide sufficient spring force to operate the piston rod 332. The spring elements 334, 335 can have sufficient length to generate the strength to operate the piston rod 332. The spring elements 334, 335 can not have a strength that exceeds the strength required to operate the piston rod 332, as a greater strength of the spring elements 334, 335 would result in a greater assembly space of the spring elements 334, 335 and thus an unnecessary increase in the size of the pressure reducer assembly 300.

[0099] The spring elements 334, 335 are disc springs 335 (as shown in Figure 6 , Figure 7 , Figure 4A , Figure 4B and Figure 5A ), compression springs 334 (as shown in Figure 5B ) or any other known type of spring element. The use of disc springs 335 can result in a compact structure and can be easily manufactured at low cost.

[0100] As shown in all the figures, the piston rod 332 can be concentric with the reducer body 310 or the reducer chamber 320. It should be emphasized that the piston rod 332 can alternatively have any other orientation with respect to the previously defined central axis X-X’ depending on the operational feasibility of the reducer assembly 300. The piston rod 332 of the present disclosure is movable with respect to the reducer body 310. The piston rod 332 is configured to oscillate back and forth substantially within the reducer chamber 320. The piston rod 332 oscillates to temporarily prevent the supply of water from the inlet section 322 towards the outlet section 324. The back and forth movement of the piston rod 332 is due to the differential forces experienced by the piston rod 332. When the pressure at the outlet section 324 is greater than the predetermined / preset constant output pressure, the piston rod 332 is forced to assume a downward stroke, i.e. towards the inlet section 322. In other words, when the pressure at the outlet section 324 is greater than the pressure required for the application for which the reducer assembly 300 is intended. Furthermore, when the pressure at the outlet section 324 is less than the predetermined / preset constant output pressure, the piston rod 332 assumes an upward stroke, i.e. towards the outlet section 324. In other words, when the pressure at the outlet section 324 is less than the preset or predetermined pressure of the reducer assembly 300.

[0101] Furthermore, according to the present disclosure, the leakage of water in the outlet section 324 back into the reducer chamber 320 is prevented by the sealing elements 336, 337 operatively coupled with the piston rod 332. The sealing elements 336, 337 are configured to form a seal between the inner wall sections 206, 207 of the inlet portion 204 of the fluid outflow device 200 and the outer surface 338 of the piston rod 332 at the outlet section 324 of the reducer chamber 320 (as shown in Figure 6 、 Figure 4A 、 Figure 4B 、 Figure 5A and Figure 5B ). The sealing elements 336, 337 do not allow the backflow of water through the outlet section 324. Thereby, any possible leakage can be eliminated and the overall efficiency of the reducer assembly 300 fitted in the fluid outflow device 200 can be improved.

[0102] As shown in Figure 6 、 Figure 6 、 Figure 6 、 Figure 7 and Figure 6As specifically shown, spring elements 334 and 335 are disc springs 335, and sealing elements 336 and 337 are diaphragms 337. The disc spring 335 supports the diaphragm 337, particularly over its substantially entire radial extension. The shape of the disc spring 335 substantially corresponds to the shape of the diaphragm 337. The inclusion of both the disc-shaped diaphragm 337 and the disc spring 335 provides the advantage of a compact pressure reducer assembly design. The illustrated disc spring 335 prevents the diaphragm 337 from slipping / folding downwards due to fluid or hydraulic forces. Therefore, the diaphragm 337 in the pressure reducer assembly 300 is well supported by the disc spring 335. Furthermore, they are axially sealed by clamping the radially outer portion of the disc spring 335 and the corresponding radially outer portion of the diaphragm 337 between the axial outlet end face 327 of the pressure reducer body 320 and the axial sealing protrusion 207 of the fluid outlet device 200. Thus, the disc spring 335 and the diaphragm 337 are securely held in place.

[0103] In addition, such as Figure 4B As shown, the outer periphery of the diaphragm 337 is pressed or clamped by the pressure reducing body 310 and the fluid outlet device 200. Furthermore, the inner periphery of the diaphragm 337 is supported or clamped by a plurality of annular protrusions 332A, 332B formed on the outer surface 338 of the piston rod 332. The diaphragm 337 is well supported and stably resists the pressure difference in the pressure reducing chamber 320. By means of the piston rod 332, the pressure reducing body 310, the fluid outlet device 200, and the disc spring 335, any slippage or misalignment of the diaphragm 337 within the pressure reducing assembly 300 is prevented.

[0104] Sealing elements 336 and 337 can be diaphragm 337 (e.g.) Figure 5A (as shown), lip seal, O-ring 336 (as shown) Figure 5B (as shown) or any other known type of sealing element 336, 337 known and understood in the relevant field. However, in cases such as Figure 6 In the exemplary embodiment shown, sealing element 336 is diaphragm 337. For the purposes of this disclosure, sealing elements 336 and 337 are now interchangeably referred to as diaphragm 337. Diaphragm 337 transmits excess water pressure at outlet section 324 to piston rod 332 for a downstroke or a stroke in the direction toward inlet section 322 of pressure regulator assembly 300.

[0105] The septum 337 allows sealing between the inner wall section 206 of the inlet portion 204 of the fluid flow out device 200 and the outer surface 338 of the piston rod 332 at the outlet section 324 of the pressure reducer chamber 320. The multiple use or application of the septum 337 means that no separate sealing element such as an O-ring is required for sealing. The septum 337 provides an axial seal between the outer surface 338 of the piston rod 332 and the axial sealing protrusion 207 of the fluid flow out device 200.

[0106] Reference is made to the differential forces experienced by the piston rod 332. The forces experienced by the piston rod 332 are caused by the spring elements 334, 335 and the sealing elements 336, 337 operatively coupled with the piston rod 332. The direction of movement of the piston rod 332 at any particular moment is controlled by the direction of the resultant force caused by the spring forces of the spring elements 334, 335 and the fluid pressure on the sealing element 337 or the circular axial end surface of the piston rod 332. For example, when the resultant force is in the upstream direction due to a higher amount of force caused by the fluid acting on the surface of the sealing element 337 or the circular axial end surface of the piston rod 332 relative to the spring forces, particularly the restoring forces, caused by the spring elements 334, 335, the piston rod 332 moves in the upstream direction (as shown). Figure 4B

[0107] The constant output pressure generated by the pressure reducer assembly 300 can be adjusted by varying the initial distance or initial gap between the piston rod 332 and the valve 328 and the seal 330 during the manufacture of the pressure reducer assembly 300 or just before the pressure reducer assembly 300 is installed into the fluid flow out device 200. For example, the constant output pressure can be predetermined and pre-set during the manufacture of the pressure reducer assembly 300 according to the application requirements of the fluid flow out device 200 or the fluid flow in device 400 into which the pressure reducer assembly 300 is installed. The pressure reducer assembly 300 is configured to generate a constant output pressure of at least 1.5 bar, particularly at least 3 bar, more particularly substantially 4 bar. Some applications can require a constant output pressure of 4 bar, while other applications such as drippers and spray nozzles for horticultural operations can require a constant output pressure of 1.5 bar. Thus, the initial distance or initial gap between the piston rod 332 and the valve 328 and the seal 330 is increased to generate a constant output pressure of 4 bar, while it is relatively reduced to generate a constant output pressure of 1.5 bar.

[0108] Continuing reference is made to Figure 5A , Figure 4A and Figure 5B ​The pressure reducer assembly 300 includes a pressure reducer body 310 that also includes a pressure compensation hole 340. The pressure compensation hole 340 connects the pressure reducer chamber 320 and the outer surface 312 of the pressure reducer body 310. The pressure compensation hole 340 can ensure unrestricted mobility of the piston rod 332. When the piston rod 332 moves in an upstream direction visible in the direction of fluid flow through the pressure reducer assembly 300, the pressure compensation hole 340 allows release of air pressure created in the pressure reducer chamber 320. Thus, when the piston rod 332 moves in the upstream direction (as shown in Figure 6 and Figure 6 ), the pressure compensation hole 340 allows air to flow out of the pressure reducer chamber 320. Conversely, when the piston rod 332 moves in a downstream direction visible in the direction of fluid flow through the pressure reducer assembly 300 (as shown in Figure 6 and Figure 5A ), the pressure compensation hole 340 allows suction of ambient air (outside the pressure reducer assembly 300 or the pressure reducer chamber 320). Furthermore, the sealing elements 336, 337 can prevent air from the pressure reducer chamber 320 from entering the outlet section 324, thereby preventing mixing of air suctioned from the pressure compensation hole 340 with water in the outlet section 324.

[0109] As exemplified in Figure 5B , the sealing element 133 is used to seal the air in the pressure reducer chamber 320 surrounding the spring-operated piston rod 332 from the valve 328. The sealing element 133 prevents the air in the pressure reducer chamber 320 from mixing with the fluid introduced into the pressure reducer assembly 300 via the inlet section 322. The sealing element 133 can be an O-ring. Alternatively, without limiting the scope of the present disclosure, the sealing element 133 can be any other commonly used sealing element known in the art.

[0110] The pressure reducer assembly 300 is configured such that when the pressure reducer assembly 300 is installed to the fluid outflow device 200 and the fluid inflow device 400, the air pressure inside the pressure reducer chamber 320 can be compensated, particularly specifically, via the pressure compensation hole 340 and the complementary threads 202 and 406 of the fluid outflow device 200 and the fluid inflow device 400 (as shown by the arrows in Figure 5A ). Additionally, the pressure reducer assembly 300 is formed to be toollessly, detachably installed into the inlet portion 204 of the fluid outflow device 200, such that the air pressure inside the pressure reducer chamber 320 can be compensated via the pressure reducer hole 340 and the complementary threads 202 of the fluid outflow device 200 and the threads 406 of the fluid inflow device 400.

[0111] Figure 5B The pressure compensation route shown in Figure 1and Figure 1 The axial air gap G is further followed by a fluid coupling between the complementary threads 202, 406 of the fluid outflow device 200 and the fluid inflow device 400. In other words, a pressure compensation can be established from the pressure compensation hole 340 via the axial air gap G and the complementary threads 202, 406 of the fluid outflow device 200 and the fluid inflow device 400.

[0112] The pressure compensation route can be seen as a channel through which air flows during pressure compensation. Furthermore, the pressure compensation route is such that air coming out of the pressure compensation hole 340 is directed around a substantially 90-degree turn in the upstream direction of the water flow, followed by a 180-degree turn around the axial air gap G, further followed by a further 90-degree turn to reach the environment outside the fluid application assembly 100. The pressure compensation hole 340 and the passage of air therethrough via the pressure compensation hole 340, the axial air gap G, and the complementary threads 202 and 406 are configured for compensating pressure variations in the pressure reducer chamber 320 caused by the oscillating movement of the piston rod 332 and caused by the spring elements 334, 335. Thereby, the energy or pressure of the air can be reduced and the noise of the pressurized air that can be released from the pressure reducer chamber 320 and thus from the fluid application assembly 100 can be reduced. However, the air flowing out of the pressure compensation hole 340 can be prevented from reaching the outlet section 324 of the pressure reducer assembly 300 by means of the fluid-tight coupling between the axial sealing protrusion 207 of the pressure reducer body 310 and the fluid outflow device 200 and further by means of the seal formed with the help of the septum 337 pressed between the pressure reducer body 310 and the fluid outflow device 200.

[0113] According to Figure 7 and Figure 7 According to the exemplary embodiment shown in FIG. 3, the pressure compensation groove 342 formed on the outer surface 312 of the pressure reducer body 310 can be linear. According to alternative embodiments of the present application, the pressure compensation groove 342 on the outer surface 312 of the pressure reducer body 310 can be a non-linear groove. The groove design can depend on application requirements and other factors. The pressure compensation groove 342 forms a clearance space between the inner surface 206 of the fluid outflow device 200 and the outer surface 312 of the pressure reducer body 310, which can improve the flow of air in and out of the pressure compensation hole 340 or through the pressure compensation route.

[0114] Further, the outer surface 208 of the fluid outflow device 200 is formed without pressure compensation bore holes, such that there is no unwanted foreign elements to clog the pressure compensation holes 340 formed in the pressure reducer body 310 and affect the working of the pressure reducer assembly 300 installed in the fluid outflow device 200. Additionally, the outer surface 208 of the fluid outflow device 200 being formed without pressure compensation bore holes ensures that the pressure reducer assembly 300 can be included in different fluid outflow devices 200.

[0115] In operation, Figure 8A the operator of the fluid application assembly 100 presses the lever 102 (as shown in Figure 8B and Figure 8C ) to actuate the lever 102. Upon actuation, water from the water source reaches the pressure reducer assembly 300 installed in the fluid outflow device 200 via the fluid inflow device 400. The pressure reducer assembly 300 reduces the water pressure to a constant reduced and predetermined pressure for further use in various domestic and industrial applications.

[0116] Thus, the present disclosure provides an improved pressure reducer assembly 300 that can be simple in construction and can be easily assembled or installed in a fluid outflow device 200. The pressure reducer assembly 300 can advantageously be designed in such a way that the pressure compensation holes 340 can not be directly exposed to the external environment. The pressure compensation holes 340 can be surrounded or covered by the fluid outflow device 200 and the fluid inflow device 400, which can thereby provide protection to the pressure compensation holes 340 from the foreign elements present in the surrounding or external environment of the fluid outflow device 200 and the fluid inflow device 400. Thus, the pressure compensation holes 340 can be prevented from getting clogged due to dirt, sand, etc. The pressure compensation holes 340 can thereby allow or ensure unobstructed mobility of the piston rod 332 in the pressure reducer chamber 320 and thus allow or ensure efficient working of the pressure reducer assembly 300 in different types of fluid outflow devices 200.

[0117] The fluid application assembly 100 as exemplified in Figure 8D comprises a fluid inflow device 400, a fluid outflow device 200 and a pressure reducer assembly 300 installed to the fluid outflow device 200. The pressure reducer assembly 300 comprises a compression spring 334 as a spring element 334, 335 and an O-ring 336 as a sealing element 336, 337. The compression spring 334 allows axial movement of the piston rod 332 for pressure compensation. The O-ring 336 provides radial sealing between the planar inner surface 206 of the fluid outflow device 200 and the outer surface 338 of the piston rod 332 at the outlet section 324 of the pressure reducer chamber 320.

[0118] The fluid application assembly 100 as exemplified in Figures 8A-8D , Figure 2 , Figure 8B and Figure 1The illustrated fluid application assembly 100 is a mist sprayer and includes a fluid inflow device 400, a fluid outflow device 200, and a pressure reducer assembly 300 mounted to the fluid outflow device 200. The fluid outflow device 200 is configured to direct fluid outflow from the pressure reducer assembly 300. Figure 4A The illustrated fluid outflow device 200 is a mist sprayer head 200. The mist sprayer head 200 can be disposed on a surface to generate and spray a regulated mist stream in a non-limiting manner for different well-known applications. The mist sprayer head 200 includes a plurality of nozzles 216 to spray the mist stream. Each of the plurality of nozzles 216 can have a similar or different outflow diameter according to application requirements. Further, each of the plurality of nozzles 216 can have a different outflow profile with respect to each other.

[0119] The fluid outflow device 200 receives water from the fluid inflow device 400 via the pressure reducer assembly 300 for generating and spraying the mist stream. The fluid inflow device 400 is configured to fluidly couple the fluid outflow device 200 to a water connection, particularly a hose or a line fluidly coupled to a water source, and further configured to direct fluid or water inflow to the pressure reducer assembly 300. The fluid inflow device 400 is a connector nipple 400 and includes an O-ring 402 disposed in an annular channel disposed on an outer surface 410 of the connector nipple 400. The O-ring 402 provides a fluid-tight coupling with the water connection, such as the hose, to substantially minimize or reduce potential waste of water.

[0120] Further, as previously discussed with respect to the illustrated example embodiments as Figure 4B , Figure 8B the plurality of threads or teeth 406 of the fluid inflow device 400 engage with the corresponding plurality of threads or teeth 202 of the fluid outflow device 200 to form a fluid coupling between the fluid inflow device 400 and the fluid outflow device 200, as Figure 5A illustrated. Similarly, as previously disclosed with respect to the illustrated example embodiments as Figure 5B , Figure 6 and Figure 6 , Figure 9A the pressure reducer assembly 300 is completely enclosed by the fluid inflow device 400 and the fluid outflow device 200 in the installed state, as Figure 9A illustrated. Further, the pressure reducer assembly 300 is substantially similar in design as compared to the pressure reducer assembly 300 illustrated in Figure 9Bis installed in a similar manner. The pressure reducer assembly 300 includes a compression spring 334 as a spring element 334, 335 and a diaphragm 337 as a sealing element 336, 337. The compression spring 334 allows axial movement of the piston rod 332 for pressure compensation. The diaphragm 337 provides an axial seal between an outer surface 338 of the piston rod 332 and the axial sealing protrusion 207 of the fluid outflow device 200.

[0121] Furthermore, the compression spring 334 has a significantly longer length relative to the disc spring 335 (as Figure 9A As shown in the illustrated embodiment of the water spigot 100 as a fluid application device 100, the pressure reducer body 310 includes a pressure compensation hole 340 located near the inlet section 322 of the pressure reducer chamber 320. Thus, the air pressure inside the pressure reducer chamber 320 can be compensated, in particular specifically, via the pressure compensation hole 340 and the complementary thread 202 of the mist sprayer 200 and the thread 406 of the connector nipple 400. The pressure compensation is further supported or facilitated by the axial air gap G formed between the further sealing element 404 and the axial end face 210 of the mist sprayer 200.

[0122] Figure 10A A cross-sectional view of a fluid application assembly 100 as a water spigot 100 according to another exemplary embodiment of the present application is illustrated. The water spigot 100 includes a coupling nipple 214 as a fluid outflow device 200 and a water supply line 416 as a fluid inflow device 400. The water supply line 416 is fluidly couplable to an external water source or water connection. The water supply line 416 conveys water received from the water source to the coupling nipple 214 of the water spigot 100. The fluid outflow device 200, in particular the coupling nipple 214 of the water spigot 100, is mounted, in particular screwed, to the fluid inflow device 400, in particular the water supply line 416, using the complementary thread 202 of the fluid outflow device 200 and the thread 406 of the fluid inflow device 400, respectively. As Figure 10B As illustrated, the fluid inflow device 400 is a water supply line 416 and the fluid outflow device 200 is a coupling nipple 214.

[0123] The fluid outflow device 200 and the fluid inflow device 400 enclose the pressure reducer assembly 300 when coupled. In other words, the pressure reducer assembly 300 is mounted between the fluid outflow device 200 and the fluid inflow device 400 and is annularly separated from the external environment by the fluid inflow device 400 and the fluid outflow device 200. The pressure reducer assembly 300 regulates the pressure of the water flowing from the water supply line 416 towards the coupling nipple 214. Figure 10A An exploded view of the water spigot 100 as a fluid application device 100 is shown. Figure 10B The pressure reducer assembly 300 of this exemplary embodiment is mounted between the fluid outflow device 200 and the fluid inflow device 400 and is annularly separated from the external environment by the fluid inflow device 400 and the fluid outflow device 200. Figure 5A andFigure 5B As Figure 9A and Figure 9C illustrated, pressure reducer assembly 300 is substantially similar to pressure reducer assembly 100, with slight deviations in design depending on the fitting requirements in water spigot 100. Figure 10A and Figure 10B illustrated, pressure reducer assembly 300 is substantially similar to pressure reducer assembly 100, with slight deviations in design depending on the fitting requirements in water spigot 100.

[0124] Pressure reducer assembly 300 includes a pressure reducer body 310 having a central axis X-X’ along a longitudinal direction of pressure reducer assembly 300. Pressure reducer body 310 includes an outer surface 312 and an inner surface 314. Outer surface 312 of pressure reducer body 310 is configured to be installed to a water supply line 416 or a fluid inflow device 400 without screws, as shown in Figure 9A and Figure 9B illustrated. Further, a gasket 344 is retained in an annular cavity in pressure reducer body 310 and radially seals and prevents leakage of water received from a water source. Further, pressure reducer body 310 defines at least a portion of a pressure reducer chamber 320 along central axis X-X’. Inner surface 314 of pressure reducer body 310 defines an annular boundary wall of pressure reducer chamber 320. Pressure reducer chamber 320 includes an inlet section 322 and an outlet section 324 fluidly coupled to inlet section 322.

[0125] Further, pressure reducer assembly 300 includes a valve 328 disposed at inlet section 322 of pressure reducer chamber 320. Valve 328 is configured to selectively allow and disallow fluid, particularly water, to flow through pressure reducer assembly 300. Valve 328 can be coupled to inlet section 322 by any suitable means known in the art. However, in an exemplary embodiment, valve 328 is threaded to inlet section 322. Valve 328 also includes a seal 330. Seal 330 is an O-ring, as illustrated in the embodiments exemplified in Figure 9C and Figure 10A illustrated. Further, pressure reducer assembly 300 includes a valve 328 disposed at inlet section 322 of pressure reducer chamber 320. Valve 328 is configured to selectively allow and disallow fluid, particularly water, to flow through pressure reducer assembly 300. Valve 328 can be coupled to inlet section 322 by any suitable means known in the art. However, in an exemplary embodiment, valve 328 is threaded to inlet section 322. Valve 328 also includes a seal 330. Seal 330 is an O-ring, as illustrated in the embodiments exemplified in

[0126] With continued reference to Figure 10B , Figure 10A , Figure 10B , List of elements and ​ , pressure reducer assembly 300 also includes a biasing member piston rod 332. Piston rod 332 is a hollow piston rod 332 that allows water to pass through, the pressure of which will be reduced in pressure reducer assembly 300. Piston rod 332 connects inlet section 322 with outlet section 324 and allows fluid, particularly water, to flow from inlet section 322 towards outlet section 324. Piston rod 332 is located downstream of valve 328 such that seal 330 axially seals piston rod 332.

[0127] Further, the compression spring 334 is functionally coupled with the piston rod 332 and is configured to allow the piston rod 332 to move axially along the central axis X-X’. The piston rod 332 is configured to oscillate substantially within the pressure reducer chamber 320. The piston rod 332 oscillates to temporarily reduce or prevent the supply of water from the inlet section 322 towards the outlet section 324. The back and forth movement of the piston rod 332 is due to the differential forces experienced by the piston rod 332.

[0128] Further, leakage of water from the outlet section 324 back into the pressure reducer chamber 320 is prevented by the diaphragm 337 operatively coupled with the piston rod 332. The diaphragm 337 is configured to form a seal between the inner wall section 206 of the inlet portion 204 of the fluid outflow device 200 as the coupling joint 214 and the outer surface 338 of the piston rod 332 at the outlet section 324 of the pressure reducer chamber 320.

[0129] With reference to the differential forces experienced by the piston rod 332, the forces experienced by the piston rod 332 are caused by the compression spring 334 and the diaphragm 337 operatively coupled with the piston rod 332 in the pressure reducer chamber 320. The direction of movement of the piston rod 332 at any particular instant is controlled by the direction of the resultant force on the piston rod 332 by the spring force caused by the compression spring 334 and the fluid pressure on the diaphragm 337.

[0130] Further, the inner periphery of the diaphragm 337 is securely held in place by a plurality of annular protrusions 332A, 332B formed on the outer surface 338 of the piston rod 332.

[0131] As ​ and ​ illustrated, the pressure reducer body 310 additionally includes a collar 316. The collar 316 has a greater radial extension than the circular outer surface 312 of the pressure reducer body 310. The collar 316 is formed at the axial end 318 of the pressure reducer body 310 adjacent to the outlet section 324 of the pressure reducer chamber 320. The collar 316 supports the pressure reducer assembly 300 on the fluid inflow device 400. Further, the collar 316 is axially sandwiched or clamped between the axial end face 414 of the fluid inflow device 400 and the diaphragm 337 when the fluid outflow device 200 is mounted to the fluid inflow device 400. Thus, the diaphragm 337 is additionally supported and securely held in place by the collar 316 and the axial sealing protrusion 207 of the fluid outflow device 200 when the fluid outflow device 200 is mounted to the fluid inflow device 400.

[0132] According to the exemplary embodiment, the collar 316 further includes a groove 317 such that the groove 317 extends over the entire radial extension of the collar 316. The groove 317 can preferably have a circular cross-section. However, any other cross-section is within the scope of the present disclosure.

[0133] Pressure compensation is established from the pressure compensation hole 340 via the groove 317 and the complementary threads 202, 406 of the fluid outflow device 200 and the fluid inflow device 400, respectively. Thus, the groove 317 provides a passage between the pressure compensation hole 340 and the complementary threads 202, 406 for allowing air to flow out of the pressure reducer chamber 320 when the piston rod 332 is moved in the upstream direction.

[0134] Thus, the pressure reducer assembly 300 can be reliably mounted to the fluid application assembly 100 and is capable of reliably providing a constant pressure. Furthermore, foreign elements can be reduced from entering the pressure reducer chamber 320 and thus the service life of at least the pressure reducer assembly 300 and the entire fluid application assembly 100 can be increased.

[0135] In the drawings and specification, there have been disclosed preferred embodiments and examples of the invention and, although specific terms are employed, they are used in a generic and descriptive sense only and not for purposes of limitation, the scope of the invention being set forth in the following claims.

[0136] ​

[0137] 100 fluid application assembly / water spigot

[0138] 133 sealing element

[0139] 200 fluid outflow device

[0140] 202 plurality of threads or teeth of the fluid outflow device

[0141] 204 inlet portion of the fluid outflow device

[0142] 206 inner wall section / inner surface of the fluid outflow device

[0143] 207 inner wall section / axial sealing protrusion of the fluid outflow device

[0144] 208 outer surface

[0145] 210 axial end face of the fluid outflow device

[0146] 300 pressure reducer assembly

[0147] 310 pressure reducer body

[0148] 312 outer surface of the pressure reducer body

[0149] 314 inner surface of the pressure reducer body

[0150] 316 collar

[0151] 317 groove

[0152] 320 pressure reducer chamber

[0153] 322 inlet section of pressure reducer chamber

[0154] 324 outlet section of pressure reducer chamber

[0155] 326 axial inlet end face of pressure reducer body

[0156] 327 axial outlet end face of pressure reducer body

[0157] 328 valve

[0158] 330 seal

[0159] 332 piston rod

[0160] 332A, 332B annular protrusions

[0161] 334 spring element / compression spring

[0162] 335 spring element / disc spring

[0163] 336 sealing element / O-ring

[0164] 337 sealing element / diaphragm

[0165] 338 outer surface

[0166] 339 sealing seat

[0167] 340 pressure compensation hole

[0168] 342 pressure compensation groove

[0169] 400 fluid inflow device

[0170] 402 O-ring

[0171] 404 further sealing element

[0172] 406 plurality of threads or teeth

[0173] 408 inner surface of fluid inflow device

[0174] 410 outer surface of fluid inflow device

[0175] 412 sealing surface of fluid inflow device

[0176] 414 axial end face of fluid inflow device

[0177] X-X’ central axis

[0178] Y center

[0179] G axial air gap.

Claims

1. A pressure reducer assembly (300) for reducing the pressure of a fluid, preferably a liquid, more preferably water, the pressure reducer assembly comprising: a pressure reducer body (310) defining at least a portion of a pressure reducer chamber (320) along a central axis (X-X’), wherein the pressure reducer assembly (300) comprises an inlet section (322) and an outlet section (324) fluidly coupled with the inlet section (322), wherein the inlet section (322) is configured to allow inflow of the fluid, and wherein the outlet section (324) is configured to allow outflow of the fluid, a biasing member piston rod (332) having a center (Y) along the central axis (X-X’) connecting the inlet section (322) with the outlet section (324), and wherein the biasing member piston rod (332) is movable relative to the pressure reducer body (310), and a sealing element (336, 337) operatively coupled with the piston rod (332), wherein the sealing element (336, 337) is configured to form a seal between an inner wall section (206, 207) of a fluid outflow device (200) and an outer surface (338) of the piston rod (332) at the outlet section (324), wherein the pressure reducer body (310) comprises a pressure compensation bore (340), wherein the pressure compensation bore (340) connects the pressure reducer chamber (320) and an outer surface (312) of the pressure reducer body (310), wherein the pressure reducer assembly (300) further comprises a valve (328) at the inlet section (322), the valve comprising a sealing seat (339) configured to selectively interact with an end of the biasing member piston rod (322) to not allow fluid flow through the pressure reducer assembly (300), characterized in that: the valve (328) is mounted to the pressure reducer body (310), wherein the pressure reducer assembly (300) is configured to be tool-free, detachably mounted to the fluid outflow device (200) and a fluid inflow device (400), such that air pressure inside the pressure reducer chamber (320) is compensable via the pressure compensation bore (340) and complementary threads (202, 406) of the fluid outflow device (200) and the fluid inflow device (400).

2. The pressure reducer assembly (300) according to claim 1, wherein the pressure reducer body (310), in particular the outer surface (312) of the pressure reducer body (310), is configured to be screw-free, detachably mountable to the fluid outflow device (200), in particular a water application device, and / or the fluid inflow device (400), in particular a water spigot (100).

3. The pressure reducer assembly (300) according to claim 1 or 2, wherein the pressure reducer body (310) comprises the outer surface (312) and an inner surface (314), and wherein the pressure reducer body (310) extends as a solid body between the outer surface (312) and the inner surface (314), and is free of voids or larger openings.

4. The pressure reducer assembly (300) according to any one of the preceding claims, wherein the outer surface (312) of the pressure reducer body (310) is formed smooth and free of threads.

5. The pressure reducer assembly (300) according to any one of the preceding claims, further comprising: a spring element (334, 335) as biasing member, wherein the spring element (334, 335) is functionally coupled with the piston rod (332), and wherein the spring element (334, 335) is configured to allow an axial movement of the piston rod (332) along the central axis (X-X’).

6. The pressure reducer assembly (300) according to claim 5, wherein the spring element (334, 335) is a disc spring (335).

7. The pressure reducer assembly (300) according to claim 6, wherein the sealing element (336, 337) is configured to form an axial seal between the inner wall section (206, 207), in particular an axial sealing protrusion (207), of the fluid outflow device (200) and the outer surface (338) of the piston rod (332) at the outlet section (324) of the pressure reducer assembly (300), and / or wherein the sealing element (336, 337) is a septum (337).

8. The pressure reducer assembly (300) according to claim 5, wherein the spring element (334, 335) is a compression spring (334).

9. The pressure reducer assembly (300) according to any one of the preceding claims, wherein the sealing element (336, 337) is configured to form a radial seal between the inner wall section (206, 207), in particular a planar inner surface (206), of the fluid outflow device (200) and the outer surface (338) of the piston rod (332) at the outlet section (324) of the pressure reducer chamber (320), and / or wherein the sealing element (336, 337) is an O-ring (336).

10. The pressure reducer assembly (300) according to any one of claims 1 to 8, wherein the sealing element (336, 337) is configured to form an axial seal between the inner wall section (206, 207), in particular an axial sealing protrusion (207), of the fluid outflow device (200) and the outer surface (338) of the piston rod (332) at the outlet section (324) of the pressure reducer chamber (320), and / or wherein the sealing element (336, 337) is a septum (337).

11. The pressure reducer assembly (300) according to any one of the preceding claims, wherein the pressure reducer assembly (300) is configured to generate a constant output pressure of at least 1.5 bar, in particular of at least 3 bar, more in particular of substantially 4 bar.

12. The pressure reducer assembly (300) according to any one of the preceding claims, wherein the pressure reducer body (310) comprises a collar (316) having a greater radial extension than an outer surface (312) of the pressure reducer body (310), wherein the collar (316) is formed at an axial end (318) of the pressure reducer body (310) adjacent to the outlet section (324) of the pressure reducer assembly (300), and wherein a groove (317) is formed in the collar (316), wherein the groove (317) extends over the entire radial extension of the collar (316), and wherein the groove (317) is formed in communication with the complementary threads (202, 406) of the fluid outflow device (200) and the fluid inflow device (400).

13. A fluid application assembly (100) comprising a pressure reducer assembly (300) according to any one of the preceding claims, the fluid outflow device (200) is configured to direct the fluid out of the pressure reducer assembly (300), wherein the fluid outflow device (200) is in particular a sprayer, a spritz, a shower head, a mist shower head, a spray gun, a drip irrigation component, or a water socket of a water socket (100), and the fluid inflow device (400) is configured to couple the fluid outflow device (200) to a fluid connection, in particular a hose or a line, and wherein the fluid inflow device (400) is configured to direct the fluid into the pressure reducer assembly (300), wherein the fluid inflow device (400) is in particular a connector joint or a water supply line (416) of a water socket (100), wherein the pressure reducer assembly (300) is in particular tool-free, detachably mounted into an inlet portion (204) of the fluid outflow device (200) such that the outlet section (324) of the pressure reducer assembly (300) is fluidly coupled to the inlet portion (204) of the fluid outflow device (200), or wherein the pressure reducer assembly (300) is mounted, preferably screw-free mounted, into an outlet portion of the fluid inflow device (400) such that the inlet section (322) of the pressure reducer assembly (300) is fluidly coupled to the outlet portion of the fluid inflow device (200).

14. The fluid application assembly (100) according to claim 13, wherein the fluid outflow device (200) is mounted, in particular screwed, to the fluid inflow device (400) such that an axial inlet end face (326) of the pressure reducer body (300) is sealed against a sealing surface (412) of the fluid inflow device (400), in particular by a further sealing element (404), more particularly by an axial flat seal (404), wherein an axial air gap (G) is formed between the axial inlet end face (326) of the pressure reducer body (310) and an axial end face (210) of the fluid outflow device (200), and wherein a pressure compensation is established from the pressure compensation bore (340) via the axial air gap (G) and the complementary threads (202, 406) of the fluid outflow device (200) and the fluid inflow device (400).

15. The fluid application assembly (100) according to claim 13, wherein the fluid outflow device (200) is mounted, in particular screwed, to the fluid inflow device (400) such that a collar (316) is axially clamped between an axial end face (414) of the fluid inflow device (400) and the sealing element (337), wherein the collar (316) has a greater radial extension than an outer surface (312) of the pressure reducer body (310) and is formed at an axial end (318) of the pressure reducer body (310) adjacent to the outlet section (324) of the pressure reducer chamber (320), wherein a groove (317) is formed in the collar (316) and extends over the entire radial extension of the collar (316), and wherein the groove (317) is in communication with the complementary threads (202, 406) of the fluid outflow device (200) and the fluid inflow device (400), wherein a pressure compensation is established from the pressure compensation bore (340) via the groove (317) and the complementary threads (202, 406) of the fluid outflow device (200) and the fluid inflow device (400).

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