] The present disclosure relates generally to a field of a device for fluid flow and pressure regulation. More specifically, it pertains to a compact, cost effective device which regulates flow and pressure of fluid to provide smooth and i jerk free engagement of wet PTO clutch within optimum time frame.
BACKGROUND OF THE INVENTION
[0002] Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the
) information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art. [0003] A working vehicle with Hydro Static Transmission (HST) having wet Power Take Off (PTO) clutch comprises a solenoid actuator on dashboard, and a clutch immersed in fluid to engage PTO shaft coupled with an implement. An
i operator of working vehicle actuates solenoid actuator to engage wet PTO clutch and transfer power to PTO shaft coupled with an implement, which is stationary at the time of engagement of the clutch.
[0004] A solenoid actuator coupled with a solenoid valve can be configured with a conduit. Conduit is fluidically coupled with a wet PTO clutch housing such
) that fluid from solenoid valve can flow to wet PTO clutch housing through conduit. Wet PTO clutch is configured with a PTO shaft, which enables engagement and disengagement of PTO shaft coupled with an implement.
[0005] Actuating a solenoid actuator by an operator enables fluid flow from the solenoid valve to wet PTO clutch through conduit. Fluid coming from the
i solenoid valve is at higher pressure, say 10 bar pressure, which enables high pressure fluid to enter wet PTO clutch through conduit. Sudden engagement of wet PTO clutch at high pressure with PTO shaft coupled with an implement may result in providing instantaneous power to stationary implement coupled with PTO shaft. This causes impact loading on stationary implement due to sudden change in inertia.
) This may cause breakage of shear bolts in stationary implement and sudden jerk in

working vehicle. This kind of impact loading may produce heavy discomforting noise and may damage transmission unit.
[0006] In an existing technology, a conduit is configured between a solenoid valve and wet PTO clutch. An orifice of a predefined diameter is configured in
i conduit such that the orifice regulates fluid pressure and flow from the solenoid valve to wet PTO clutch. Disadvantage with existing technology is that volumetric flow rate of fluid decreases which delays entry of fluid into wet PTO clutch housing. Delayed entry of fluid into wet PTO clutch increases time for wet PTO clutch engagement. This results in early burning of discs in wet PTO clutch and causes
) early failure resulting in lesser life of wet PTO clutch.
[0007] In another existing technology, an accumulator valve is configured between the solenoid valve and wet PTO clutch housing to regulate fluid pressure. The accumulator valve includes a piston and a spring arrangement. The piston movement compresses spring as inlet fluid pressure exceeds predefined wet PTO
i clutch pressure valve, which results in regulating inlet fluid pressure. Disadvantage with existing technology is that accumulator valve, having a very large size in relation to solenoid valve and wet PTO clutch, causes constraints and difficulties in accommodating within the given space. There is also cost disadvantage with the existing technology.
) [0008] In yet another existing technology, an electronic modulation valve is fluidically configured between solenoid valve and wet PTO clutch along with a central electronic processing unit. The electronic modulation valve includes various sensors and a processing unit. The sensors sense fluid pressure and send signal to processing unit, which regulates fluid pressure and flow through electronic
i modulation valve. Disadvantage with existing technology is that electronic
modulation valve is a very complex system which requires many changes within
working vehicle systems, which increases overall cost and complexity.
[0009] There is, therefore, a need in the art to provide a simple, compact, and
cost effective device for regulating fluid pressure and flow to provide smooth and

jerk-free engagement of wet PTO clutch with PTO shaft coupled with implement within desired optimum time.
OBJECTS OF THE INVENTION
i [0010] A general object of the present disclosure is to provide a device for fluid flow and pressure regulation.
[0011] Another object of the present disclosure is to provide a compact, and cost effective device which regulates flow and pressure of fluid to enable jerk free engagement of a wet PTO clutch within optimum time frame.
) [0012] Another object of the present disclosure is to provide a device for fluid flow and pressure regulation to enable smooth engagement of power take off (PTO) shaft coupled between wet PTO clutch and an implement attached. [0013] Another object of the present disclosure is to provide a device for fluid flow and pressure regulation which provides regulated supply of fluid pressure to
! the wet PTO clutch.
[0014] Another object of the present disclosure is to provide a device for fluid flow and pressure regulation which provides smooth engagement of wet PTO clutch without noise and protects the transmission and implement from breakage and failure.
) [0015] Another object of the present disclosure is to provide a device for fluid flow and pressure regulation which provides optimum volumetric fluid flow rate such that fluid reaches the clutch in an optimum time thus preventing discs of wet PTO clutch from burning out. [0016] Another object of the present disclosure is to provide a device for fluid
i flow and pressure regulation which is compact in size, and can be easily configured between the solenoid valve and the wet PTO clutch inside hydrostatic transmission of a working vehicle.
[0017] Another object of the present disclosure is to provide a device for fluid flow and pressure regulation which includes a simple system which is cost effective.

[0018] These and other objects of the present invention will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings.
i SUMMARY OF INVENTION
[0019] Aspects of the present disclosure relate to a device for fluid flow and pressure regulation. More specifically, it pertains to a compact, cost effective device which regulates flow and pressure of fluid to provide smooth and jerk free engagement of wet PTO clutch within optimum time frame.
) [0020] In an aspect, the present disclosure elaborates upon a device for fluid flow and pressure regulation. The device may comprise a housing comprising an inlet end, an inner wall, and an outlet end. A first valve body may be configured with a cavity and coaxially disposed inside the housing along the inner wall, and the cavity may be in-line fluidic communication with the inlet end. A third valve
i body may be fluidically coupled with the first valve body and coaxially disposed inside the housing along the inner wall at a predefined distance from the inner wall. A second valve body may be coaxially disposed inside the third valve body and positioned in-line with the first valve body. A first biasing means may be coupled with the second valve body and may be extending to the first valve body and to the
) third valve body, to enable slidable movement of the second valve body between a first position and a second position, and may enable slidable movement of the first valve body between an open position and a close position.
[0021] In an aspect, the first position may enable fluid flow through a second opening, and the second position may disable fluid flow, and the open position may
i enable fluid flow through a first opening, and the close position may disable fluid flow. A second biasing means may be configured between the third valve body and the outlet end to enable slidable movement of the third valve body between a third position and a fourth position. [0022] In an aspect, the third position of the third valve body may enables the
) second valve body in the second position and the first valve body in the open

position to enable regulated fluid flow from the inlet end through the first opening to the outlet end. The fourth position of the third valve body may enable the second valve body in the first position and the first valve body in the close position to enable fluid flow from the inlet end through the cavity and the second opening to
i the outlet end.
[0023] In an aspect, higher fluid pressure at the inlet end than the outlet end may enable slidable movement of the third valve body at the third position, the second valve body at the second position and the first valve body at the open position may enable fluid flow from the first opening to the outlet end.
) [0024] In an embodiment, higher fluid pressure at the inlet end than the outlet end may enables slidable movement of the third valve body at the third position, the second valve body at the second position and the first valve body at the open position to enable fluid flow from the first opening to the outlet end. [0025] In an embodiment, higher fluid pressure at the outlet end than the inlet
i end may enable slidable movement of the third valve body at the fourth position, the second valve body at the first position, and the first valve body at the close position may enable fluid flow from the cavity through the second opening to the outlet end. [0026] In an embodiment, the device may comprise a holding means
) configured with the outlet end, and the holding means may be adapted to support the second biasing means.
[0027] In an embodiment, the first opening may be adapted by the slidable movement of the first valve body at a proximal distance from the inner wall to enable fluid flow.
i [0028] In an embodiment, the second opening may be adapted by the slidable movement of the second valve body at a proximal distance from the third valve body to enable fluid flow.
[0029] In an embodiment, the second position may be adapted by the slidable movement of the second valve body to couple with the third valve body to disable
) fluid flow.

[0030] In an embodiment, the close position may be adapted by the slidable movement of the first valve body to couple with the inner wall to disable fluid flow. [0031] In an embodiment, a one of the first biasing means may be configured between the first valve body and the second valve body, and a second of the first
i biasing means may be configured between the second valve body and the third valve body.
[0032] In an embodiment, stiffness of the second biasing means may be greater than stiffness of the first biasing means, and may enable slidable movement of the third valve body to the third position at higher fluid pressure at the inlet end.
) [0033] Various objects, features, aspects and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.
i BRIEF DESCRIPTION OF THE DRAWINGS
[0034] The accompanying drawings are included to provide a further understanding of the present disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiment of the present disclosure and, together with the description, serve to explain the principles
) of the present disclosure.
[0035] FIG. 1 illustrates an exemplary cross-sectional view of a device for fluid flow and pressure regulation engaged with wet PTO clutch coupled with PTO shaft, in accordance with an embodiment of the present disclosure. [0036] FIG. 2 illustrates a cross sectional view of a device for fluid flow and
i pressure regulation, in accordance with an embodiment of the present disclosure. [0037] FIG. 3 A illustrates a perspective view of a device for fluid flow and pressure regulation, in accordance with an embodiment of the present disclosure. [0038] FIG. 3B illustrates an exemplary view of a device for fluid flow and pressure regulation, in accordance with an embodiment of the present disclosure.

[0039] FIG. 4 illustrates a device for fluid flow and pressure regulation with a first valve body in an open position and a second valve body in a second position, in accordance with an embodiment of the present disclosure. [0040] FIG. 5 illustrates a device for fluid flow and pressure regulation with a i first valve body in a close position and a second valve body in a first position, in accordance with an embodiment of the present disclosure.
DETAILED DESCRIPTION OF INVENTION
[0041] The following is a detailed description of embodiments of the
) disclosure depicted in the accompanying drawings. The embodiments are in such details as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the
i appended claims.
[0042] If the specification states a component or feature "may", "can", "could", or "might" be included or have a characteristic, that particular component or feature is not required to be included or have the characteristic. [0043] Exemplary embodiments will now be described more fully hereinafter
) with reference to the accompanying drawings, in which exemplary embodiments are shown. This disclosure may however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete and will fully convey the scope of the disclosure to those of ordinary skill in the art.
i Moreover, all statements herein reciting embodiments of the disclosure, as well as specific examples thereof, are intended to encompass both structural and functional equivalents thereof. Additionally, it is intended that such equivalents include both currently known equivalents as well as equivalents developed in the future (i.e., any elements developed that perform the same function, regardless of structure).

[0044] To the extent a term used in a claim is not defined below, it should be given the broadest definition persons in the pertinent art have given that term as reflected in printed publications and issued patents at the time of filing. [0045] As used in the description herein and throughout the claims that follow,
i the meaning of "a," "an," and "the" includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of "in" includes "in" and "on" unless the context clearly dictates otherwise. [0046] The recitation of ranges of values herein is merely intended to serve as a shorthand method of referring individually to each separate value falling within
) the range. Unless otherwise indicated herein, each individual value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g. "such as") provided with respect to certain embodiments
i herein is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention otherwise claimed. No language in the specification should be construed as indicating any non-claimed element essential to the practice of the invention. [0047] Groupings of alternative elements or embodiments of the invention
) disclosed herein are not to be construed as limitations. Each group member can be referred to and claimed individually or in any combination with other members of the group or other elements found herein. One or more members of a group can be included in, or deleted from, a group for reasons of convenience and/or patentability. When any such inclusion or deletion occurs, the specification is herein
i deemed to contain the group as modified thus fulfilling the written description of all groups used in the appended claims.
[0048] Aspects of the present disclosure relate to a device for fluid flow and pressure regulation. More specifically, it pertains to a compact, cost effective device which regulates flow and pressure of fluid to provide smooth and jerk free
) engagement of wet PTO clutch within optimum time frame.

[0049] In an aspect, the present disclosure elaborates upon a device for fluid flow and pressure regulation. The device can include a housing comprising an inlet end, an inner wall, and an outlet end. A first valve body can be configured with a cavity and coaxially disposed inside the housing along the inner wall, and the cavity
i can be in-line fluidic communication with the inlet end. A third valve body can be fluidically coupled with the first valve body and coaxially disposed inside the housing along the inner wall at a predefined distance from the inner wall. A second valve body can be coaxially disposed inside the third valve body and positioned in¬line with the first valve body. A first biasing means can be coupled with the second
) valve body and can be extending to the first valve body and to the third valve body, to enable slidable movement of the second valve body between a first position and a second position, and can enable slidable movement of the first valve body between an open position and a close position. [0050] In an aspect, the first position can enable fluid flow through a second
i opening, and the second position can disable fluid flow, and the open position can enable fluid flow through a first opening, and the close position can disable fluid flow. A second biasing means can be configured between the third valve body and the outlet end to enable slidable movement of the third valve body between a third position and a fourth position.
) [0051] In an aspect, the third position of the third valve body can enable the second valve body in the second position and the first valve body in the open position to enable regulated fluid flow from the inlet end through the first opening to the outlet end. The fourth position of the third valve body can enable the second valve body in the first position and the first valve body in the close position to
i enable fluid flow from the inlet end through the cavity and the second opening to the outlet end.
[0052] In an aspect, higher fluid pressure at the inlet end than the outlet end can enable slidable movement of the third valve body at the third position, the second valve body at the second position and the first valve body at the open
) position can enable fluid flow from the first opening to the outlet end.

[0053] In an embodiment, higher fluid pressure at the inlet end than the outlet end can enables slidable movement of the third valve body at the third position, the second valve body at the second position and the first valve body at the open position to enable fluid flow from the first opening to the outlet end.
i [0054] In an embodiment, higher fluid pressure at the outlet end than the inlet end can enable slidable movement of the third valve body at the fourth position, the second valve body at the first position, and the first valve body at the close position can enable fluid flow from the cavity through the second opening to the outlet end. [0055] In an embodiment, the device can include a holding means configured
) with the outlet end, and the holding means can be adapted to support the second biasing means.
[0056] In an embodiment, the first opening can be adapted by the slidable movement of the first valve body at a proximal distance from the inner wall to enable fluid flow.
i [0057] In an embodiment, the second opening can be adapted by the slidable movement of the second valve body at a proximal distance from the third valve body to enable fluid flow.
[0058] In an embodiment, the second position can be adapted by the slidable movement of the second valve body to couple with the third valve body to disable
) fluid flow.
[0059] In an embodiment, the close position can be adapted by the slidable movement of the first valve body to couple with the inner wall to disable fluid flow. [0060] In an embodiment, a one of the first biasing means can be configured between the first valve body and the second valve body, and a second of the first
i biasing means can be configured between the second valve body and the third valve body.
[0061] In an embodiment, stiffness of the second biasing means can be greater than stiffness of the first biasing means, and can enable slidable movement of the third valve body to the third position at higher fluid pressure at the inlet end.

[0062] In an embodiment, sudden engagement of the PTO shaft with a stationary implement can provide impact loading and jerk on stationary implement causing failure of the implement. The device for fluid flow and pressure regulation can be configured between a solenoid valve and a wet PTO clutch of a working
i vehicle, such that the fluid pressure flowing to the wet PTO clutch from the solenoid valve can be regulated. The device can include a housing, and a housing can include a first valve body, second valve body, and third valve body such that the slidable movement of the first valve body, second valve body, and third valve body can enable regulation of flow and pressure of the fluid. The regulated fluid enables the
) wet PTO clutch to enable smooth engagement of the PTO shaft with the implement.
[0063] FIG. 1 illustrates an exemplary cross-sectional view of a device for fluid
flow and pressure regulation engaged with wet PTO clutch coupled with PTO shaft,
in accordance with an embodiment of the present disclosure.
[0064] In an embodiment, the solenoid valve 106 can be fluidically coupled
i with an inlet end 210 (as shown in FIG. 2) of the device 200 for fluid flow and pressure regulation. An outlet end 218 (as shown in FIG. 2) of the device 200 for fluid flow and pressure regulation can be fluidically coupled with the wet PTO clutch 102. The wet PTO clutch 102 can be coupled with the PTO shaft 104. The PTO shaft 104 can be configured with an implement such that an engagement and
) disengagement of the wet PTO clutch 102 can enable engagement and disengagement of the PTO shaft 104 coupled with an implement which can enable transition of inertial state of the implement from stationary to dynamic. [0065] In an exemplary embodiment, an actuator can be configured on dashboard of a working vehicle. The actuator can be configured with a solenoid
i valve 106, and the solenoid valve 106 can be fluidically coupled with the device 200. When an operator of the working vehicle actuates the actuator, the fluid with high pressure from the solenoid valve 106 flows to the device 200. The device 200 can regulate pressure and flow of the fluid and can allow the regulated fluid to flow to the wet PTO clutch 102, such that the wet PTO clutch 102, in an optimum time,
) enables smooth engagement of the PTO shaft 104 coupled with the implement. In

an exemplary embodiment, the fluid can be selected from group including but not limited to oil, hydraulic fluid, hydraulic oil, transmission oil, lubricant oil, working fluid, brake oil, and the likes. [0066] FIG. 2 illustrates a cross sectional view of a device for fluid flow and
i pressure regulation, in accordance with an embodiment of the present disclosure. FIG. 3 A illustrates a perspective view of a device for fluid flow and pressure regulation, in accordance with an embodiment of the present disclosure. FIG. 3B illustrates an exemplary view of a device for fluid flow and pressure regulation, in accordance with an embodiment of the present disclosure.
) [0067] In an embodiment, the device 200 can include a housing 202, a first valve body 204, a second valve body 208, a third valve body 206, a first biasing means 212, a second biasing means 214, and the likes. The housing 202 can be configured with the inlet end 210 and the outlet end 218, such that the fluid from the inlet end 210 can enter into the housing 202 and the fluid from the outlet end
i 218 can get out of the housing 202. The first valve body 204 can be coaxially disposed inside the housing 202. The third valve body 206 can be disposed inside the housing 202, and can be fluidically coupled with the first valve body 204. The second valve body 208 can be coaxially disposed inside the third valve body 206. The first biasing means 212-1, 212-2 can be coupled with the second valve body
) 208 such that the first biasing means 212-1, 212-2 can be extended to the first valve body 204 and to the third valve body 206 to enable slidable movement of the first valve body 204 and the second valve body 208. The second biasing means 214 can be configured between the third valve body 206 and the outlet end 218, such that the third valve body 206 can be adapted to move slidably.
i [0068] In an embodiment, the housing 202 can include inner walls 224. The
inner walls 224 can form a hollow casing such that various components can be configured within the hollow casing. The housing 202 can be selected from various shapes including but not limited to circular, cylindrical, elliptical, rectangular, square, and parabola. The top of the housing 202 can be configured with an orifice
) defining the inlet end 210, and bottom of the housing 202 can be configured with

an orifice defining the outlet end 218. The inner walls 224 of the housing 202 can be configured with a first slant surface 406 (as shown in FIG. 4). [0069] In an embodiment, the first valve body 204 can be configured with the cavity 220, and the cavity 220 can be configured in-line with the inlet end 210 of
i the housing 202. In another embodiment, the cavity 220 of the first valve body 204 can be in fluidic communication with the inlet end 210 of the housing 202. The first valve body 204 can be coaxially disposed inside the housing 202 along the inner walls 224. The outer surface of the first valve body 204 can be proximally positioned with the inner walls 224 of the housing 202.
) [0070] In an embodiment, the first valve body 204 can be partly configured with the third valve body 206. The first valve body 204 can be in fluidic communication with the second valve body 208 and the third valve body 206. The first valve body 204 can be in slidable movement between an open position and a close position. The first valve body 204 can be optimally designed with a slot 408
i (as shown in FIG. 4) such that the first valve body 204 can be in slidable movement with the third valve body 206. In another embodiment, the first valve body 204 can be in slidable movement with the inner walls 224 of the housing 202. The cavity 220 of the first valve body 204 can be in fluidic communication with the second valve body 208. The cavity 220 of the first valve body 204 can be optimally
) designed such that the fluid can easily flow. The cavity 220 of the first valve body 204 can be in-line with the orifice of the inlet end 210. A top of the first valve body 204 can be at a proximal distance from the inlet end 210, and a bottom of the first valve body 204 can be at predefined distance from the second valve body 208. [0071] In an embodiment, the first valve body 204 can be configured with a
i second slant surface 404 (as shown in FIG. 4). The second slant surface 404 of the first valve body 204 can be positioned at a predefined distance from the first slant surface 406 of the inner walls 224 defining a first opening 402 (as shown in FIG. 4) based on fluid pressure difference between the inlet end 210 and the outlet end 218. In another embodiment, the second slant surface 404 can be coupled with the
) first slant surface 406 based on fluid pressure difference between the inlet end 210

and the outlet end 218. In yet another embodiment, the second slant surface 404 can be at predefined distance from the first slant surface 406 based on a fluid pressure difference between the inlet end 210 and the outlet end 218. The first valve body 204 can be optimally designed in various shape including but not limited to circular,
i cylindrical, parabola, and elliptical.
[0072] In an embodiment, the third valve body 206 can be coaxially disposed inside the housing 202 along the inner walls 224. The third valve body 206 can be coupled with the first valve body 204. The third valve body 206 can be positioned at a predefined distance from the inner walls 224 of the housing 202 defining a third
) opening 222. The third opening 222 can be in fluidic communication with the first valve body 204. The top of the third valve body 206 can be configured with a slot 410 (as shown in FIG. 4) such that the slot 408 of the first valve body 204 can be in slidable movement with the slot 410 of the third valve body 206. The third valve body 206 can include a third slant surface 504 (as shown in FIG. 5). The third valve
i body 206 can be optimally designed in various shape including but not limited to circular, cylindrical, parabola, and elliptical. The third valve body 206 can be in slidable movement between the third position and the fourth position. [0073] In an embodiment, the second valve body 208 can be coaxially disposed inside the third valve body 206. The second valve body 208 can be positioned in-
) line with the first valve body 204. In another embodiment, the second valve body 208 can be positioned in-line with the cavity 220 of the first valve body 204. In an exemplary embodiment, the second valve body 208 can be in solid shape having a recess to provide seat for biasing means 212-1. In an exemplary embodiment, the second valve body 208 can be optimally designed with various shape including but
i not limited to circular, cylindrical, parabola, and elliptical. The second valve body 208 can be adapted to slide between a first position and a second position. [0074] In an embodiment, the second valve body 208 can be configured with a fourth slant surface 506 (as shown in FIG. 5) such that the fourth slant surface 506 can be positioned at a predefined distance from the third slant surface 504 of the
) third valve body 206 defining a second opening 502 (as shown in FIG. 5) based on

fluid pressure difference between the inlet end 210 and the outlet end 218. In another embodiment, the second position can be adapted to engage the fourth slant surface 506 with the third slant surface 504 of the third valve body 206 to disable fluid flow. In yet another embodiment, the first position can enable the fourth slant
i surface 506 proximally positioned from the third slant surface 504 to enable fluid flow through the second opening 502
[0075] In an embodiment, a first biasing means 212 can include a one of the first biasing means 212-1 and a second of the first biasing means 212-2. The one of the first biasing means 212-1 can be configured between the first valve body 204
) and the second valve body 208 to enable slidable movement of the first valve body 204 between the open position and the close position. The one of the first biasing means 212-1 can be selected from group including but not limited to spring, mechanical means, hydraulic means, and pneumatic means. The open position enables fluid flow from the first opening 402 through the third opening 222 to the
i outlet end 218. The close position disables fluid flow through the first opening 402, and can allow fluid flow through the cavity 220 of the first valve body 204. [0076] In an embodiment, the second of the first biasing means 212-2 can be configured between the second valve body 208 and the third valve body 206 to enable slidable movement of the second valve body 208 between the first position
) and the second position. The second of the first biasing means 212-2 can be selected from group including but not limited to spring, mechanical means, hydraulic means, pneumatic means, and piston cylinder arrangement. The first position of the second valve body 208 enables fluid flow from a second opening 502 to the outlet end 218. The second position of the second valve body 208 disables fluid flow through the
i second opening 502.
[0077] In an embodiment, the second biasing means 214 can be configured
between the third valve body 206 and the outlet end 218. The second biasing means 214 can be selected from group including but not limited to spring, mechanical means, hydraulic means, and pneumatic means. The second biasing means 214 can
) enable slidable movement of the third valve body 206 between a third position and

a fourth position. A stiffness of the second biasing means 214 can be greater than stiffness of the first biasing means 212, and can enable slidable movement of the third valve body 206 to the third position at higher fluid pressure of the inlet end 210. In an exemplary embodiment, a diameter of the second biasing means 214 can
i be greater than the first biasing means 212. In yet another exemplary embodiment, number of coils of the second biasing means 214 can be more than the first biasing means 212.
[0078] In an embodiment, the third position of the third valve body 206 can
enable the second valve body 208 in the second position and the first valve body
) 204 in the open position to allow regulated fluid flow from the inlet end 210 through the first opening 402 to the outlet end 218. The fourth position of the third valve body 206 can enable the second valve body 208 in the first position and the first valve body 204 in the close position to enable fluid flow from the inlet end 210 through the cavity 220 and the second opening 502 to the outlet end 218.
i [0079] In an embodiment, the device 200 can include a holding means 216. The holding means 216 can be configured at the outlet end 218 of the device 200, such that the holding means 216 can be adapted to support the second biasing means 214. The holding means 216 can be selected from group including but not limited to spring holder, pneumatic holder, hydraulic holder, and mechanical holder. The
) holding means 216 can include an opening, which can support the second biasing means. The opening of the holding means 216 can be configured in-line with the outlet end 218 of the device 200. The holding means 216 can be optimally designed in various shape including but not limited to circular, cylindrical, parabola, and elliptical.
i [0080] FIG. 4 illustrates a device for fluid flow and pressure regulation with a first valve body in an open position and a second valve body in a second position, in accordance with an embodiment of the present disclosure. [0081] In an embodiment, when the fluid pressure at the inlet end 210 exceeds the outlet end 218, the fluid pressure enables slidable movement of the third valve
) body 206 at the third position, the second valve body 208 at the second position and

the first valve body 204 at the open position to enable fluid flow from the first opening 402 to the outlet end 218. In another embodiment, fluid coming from the solenoid valve 106 with higher inlet pressure enters the inlet end 210, flows through the first opening 402, then through the third opening 222, flowing through the
i holding means 216, and finally exiting through the outlet means 218 to the wet PTO clutch 102. In yet another embodiment, the higher inlet pressure at the inlet end 210 can allow small amount of the fluid to flow to the second valve body 208 through the inlet end 210 and the cavity 220. The second position of the second valve body 208 can enable engagement of the second valve body 208 with the third valve body
) 206, thus disabling flow of the fluid. The fluid flows reversibly to the first opening 402 through the cavity 220 of the first valve body 204. When fluid pressure at inlet end reaches more than predefined pressure value, the fluid pressure can enable the third valve body 206 to slide at the third position, the second valve body 208 at the second position, and the first valve body 204 at the open position. In an exemplary
i embodiment, when fluid pressure at inlet end reaches more than 7 bar, the fluid pressure enables third valve body 206 to slide at the third position, the second valve body 208 at the second position, and the first valve body 204 at the open position. [0082] FIG. 5 illustrates a device for fluid flow and pressure regulation with a first valve body in a close position and a second valve body in a first position, in
) accordance with an embodiment of the present disclosure.
[0083] In an embodiment, when the fluid pressure at the outlet end 218 exceeds the inlet end 210, the fluid pressure can enable slidable movement of the third valve body 206 at the fourth position, the second valve body 208 at the first position, and the first valve body 204 at the close position to enable fluid flow from the cavity
i 220 through the second opening 502 to the outlet end 218. In another embodiment, higher fluid pressure at the outlet end 218 enables fluid coming from the solenoid valve 106 to the inlet end 210 through the cavity 220 flows through the second opening 502 and the third valve body 208 to the holding means 216 to the outlet end 218. The close position can be adapted by the slidable movement of the first

valve body 204 to engage with the inner walls 224 to disable fluid flow from the first opening 402.
[0084] It should be apparent to those skilled in the art that many more modifications besides those already described are possible without departing from
i the inventive concepts herein. The inventive subject matter, therefore, is not to be restricted except in the spirit of the appended claims. Moreover, in interpreting both the specification and the claims, all terms should be interpreted in the broadest possible manner consistent with the context. In particular, the terms "comprises" and "comprising" should be interpreted as referring to elements, components, or
) steps in a non-exclusive manner, indicating that the referenced elements, components, or steps may be present, or utilized, or combined with other elements, components, or steps that are not expressly referenced. Where the specification claims refers to at least one of something selected from the group consisting of A, B, C ... .and N, the text should be interpreted as requiring only one element from
i the group, not A plus N, or B plus N, etc. The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended
) to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with
i modification within the spirit and scope of the appended claims.
[0085] While the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or
) examples, which are included to enable a person having ordinary skill in the art to

make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.
ADVANTAGES OF THE INVENTION
i [0086] The present disclosure provides a device for fluid flow and pressure regulation.
[0087] The present disclosure provides a compact, and cost effective device which regulates flow and pressure of fluid to enable jerk free engagement of a wet PTO clutch within optimum time frame.
) [0088] The present disclosure provides a device for fluid flow and pressure regulation to enable smooth engagement of power take off (PTO) shaft coupled between wet PTO clutch and an implement attached.
[0089] The present disclosure provides a device for fluid flow and pressure regulation which provides regulated supply of fluid pressure to the wet PTO clutch.
i [0090] The present disclosure provides a device for fluid flow and pressure regulation which provides smooth engagement of wet PTO clutch without noise and protects the transmission and implement from breakage and failure. [0091] The present disclosure provides a device for fluid flow and pressure regulation which provides optimum volumetric fluid flow rate such that fluid
) reaches the clutch in an optimum time thus preventing discs of wet PTO clutch from burning out.
[0092] The present disclosure provides a device for fluid flow and pressure regulation which is compact in size, and can be easily configured between the solenoid valve and the wet PTO clutch inside hydrostatic transmission of a working
i vehicle.
[0093] The present disclosure provides a device for fluid flow and pressure regulation which includes a simple system which is cost effective.

We Claim:

1. A device (200) for fluid flow and pressure regulation, the device comprising:
a housing (202) comprising an inlet end (210), an inner walls (224), and an outlet end (218);
a first valve body (204), configured with a cavity (220) and coaxially disposed inside the housing (202) along the inner walls (224), and the cavity (220) is in in-line fluidic communication with the inlet end (210);
a third valve body (206) fluidically coupled with the first valve body (204) and coaxially disposed inside the housing (202) along the inner walls (224) at a predefined distance from the inner walls (224);
a second valve body (208), coaxially disposed inside the third valve body (206) and positioned in-line with the first valve body (204);
a first biasing means (212), coupled with the second valve body (208) and extending to the first valve body (204) and to the third valve body (206), to enable slidable movement of the second valve body (208) between a first position and a second position, and to enable slidable movement of the first valve body (204) between an open position and a close position,
wherein the first position enables fluid flow through a second opening (502), and the second position disables fluid flow, and the open position enables fluid flow through a first opening (402), and the close position disables fluid flow; and
a second biasing means (214) configured between the third valve body (206) and the outlet end (218) to enable slidable movement of the third valve body (206) between a third position and a fourth position,
wherein the third position of the third valve body (206) enables the second valve body (208) in the second position and the first valve body (204) in the open position to enable regulated fluid flow from the inlet end (210) through the first opening (402) to the outlet end (218), and the fourth

position of the third valve body (206) enables the second valve body (208) in the first position and the first valve body (204) in the close position to enable fluid flow from the inlet end (210) through the cavity (220) and the second opening (502) to the outlet end (218).
2. A device (200) for fluid flow and pressure regulation as claimed in claim 1, wherein higher fluid pressure at the inlet end (210) than the outlet end (218) enables slidable movement of the third valve body (206) at the third position, the second valve body (208) at the second position and the first valve body (204) at the open position to enable fluid flow from the first opening (402) to the outlet end.
3. A device (200) for fluid flow and pressure regulation as claimed in claim 1, wherein higher fluid pressure at the outlet end (218) than the inlet end (210) enables slidable movement of the third valve body (206) at the fourth position, the second valve body (208) at the first position, and the first valve body (204) at the close position to enable fluid flow from the cavity (220) through the second opening (502) to the outlet end (218).
4. A device for fluid flow and pressure regulation as claimed in claim 1, wherein the device (200) comprises a holding means (216) configured with the outlet end (218), wherein the holding means (216) is adapted to support the second biasing means (214).
5. A device (200) for fluid flow and pressure regulation as claimed in claim 1, wherein the second valve body (208) comprises a fourth slant surface (506), and the third valve body (206) comprises a third slant surface (504), wherein the first position enables slidable movement of the fourth slant surface (506) at a predefined distance from the third slant surface (504) to configure the second opening (502), and the second position slidably engages the fourth slant surface (506) with the third slant surface (504) to disable fluid flow.
6. A device (200) for fluid flow and pressure regulation as claimed in claim 1, wherein the inner walls (224) of the housing (202) comprises a first slant surface (406), and the first valve body (204) comprises a second slant

surface (404), wherein the open position enables slidable movement of the second slant surface (404) at a predefined distance from the first slant surface (406) to configure the first opening (402), and the close position slidably engages the second slant surface (404) with the first slant surface (406) to disable fluid flow.
7. A device (200) for fluid flow and pressure regulation as claimed in claim 1, wherein the first opening (402) is adapted by the slidable movement of the first valve body (204) at a proximal distance from the inner walls (224) to enable fluid flow.
8. A device (200) for fluid flow and pressure regulation as claimed in claim 1, wherein the second opening (502) is adapted by the slidable movement of the second valve body (208) at a proximal distance from the third valve body (206) to enable fluid flow.
9. A device (200) for fluid flow and pressure regulation as claimed in claim 1, wherein a one of the first biasing means (212-1) is configured between the first valve body (204) and the second valve body (208), and a second of the first biasing means (212-2) is configured between the second valve body (208) and the third valve body (206).
10. A device (200) for fluid flow and pressure regulation as claimed in claim 1, wherein stiffness of the second biasing means (214) is greater than stiffness of the first biasing means (212), and enables slidable movement of the third valve body (206) to the third position at higher fluid pressure at the inlet end (210).