[특허]Inline relief valve with parabolic piston face

Taylor Innovations, LLC

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Inline relief valve with parabolic piston face

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-017/14 F16K-001/36 F16K-017/02 F16K-031/12
출원번호	US-0832467 (2015-08-21)
등록번호	US-9599243 (2017-03-21)
발명자 / 주소	Taylor, Julian S. Bell, Bryce A.
출원인 / 주소	Taylor Innovations, LLC
대리인 / 주소	Hall Estill Attorneys at Law
인용정보	피인용 횟수 : 2 인용 특허 : 13

초록
▼

A pressure relief valve having a housing with an inlet port, an outlet port and a curvilinearly extending housing interior sidewall that defines a flow passageway through the housing from the inlet port to the outlet port. A piston assembly that is moveable between a closed position to establish a fluid-tight seal between the inlet port and the outlet port, and an open position to permit fluidic flow of pressurized fluid from the inlet port to the outlet port. The piston assembly has a piston head having a parabolically shaped piston face and elliptical perimeter that, when the inlet piston assembly is moved to the open position, aligns with the housing interior sidewall to provide a continuous transition from a position immediately upstream of the piston to a position immediately downstream of the piston.

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청구항
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1. A pressure relief valve comprising: a housing having an inlet port, an outlet port and a curvilinearly extending interior sidewall to define a flow passageway through the housing from the inlet port to the outlet port; anda piston assembly moveable between a closed position to establish a fluid-tight seal between the inlet port and the outlet port along the flow passageway and an open position to permit fluidic flow of pressurized fluid from the inlet port to the outlet port along the fluid passageway, the piston assembly comprising a piston head having a parabolically shaped piston face and an elliptical perimeter that, when moved to the open position, aligns with the housing interior sidewall to provide a continuous transition from a position immediately upstream of the piston to a position immediately downstream of the piston. 2. The valve of claim 1, wherein the flow passageway in the vicinity of the piston assembly has a constant cross sectional area normal to a direction of the fluidic flow from the inlet port to the outlet port and the piston face cooperates with a portion of the interior sidewall to provide said constant cross sectional area. 3. The valve of claim 1, wherein the flow passageway in the vicinity of the piston assembly has a continuously increasing cross sectional area normal to a direction of the fluidic flow from the inlet port to the outlet port and the piston face cooperates with a portion of the interior sidewall to provide said continuously increasing cross sectional area. 4. The valve of claim 1, wherein the flow passageway has a centerline that passes from the inlet port to the outlet port, the centerline having a substantially Gaussian shape. 5. An inline relief valve comprising: a housing having an inlet port, an outlet port and a housing having an interior sidewall defining a curvalearly extending passageway between the inlet port and the outlet port;a piston assembly moveable by pressurized fluid between a closed position to establish a fluid-tight fluid seal along the flow passageway and an open position to permit fluidic flow from the outlet port, the piston assembly comprising a piston head having a parabolically shaped piston face and an elliptical shaped perimeter so that, when moved to the open position, the piston face aligns with the housing interior sidewall to provide a continuous transition from a position immediately upstream of the piston to a position immediately downstream of the piston; andwherein the flow passageway in the vicinity of the piston assembly has a cross sectional area normal to a direction of the fluidic flow from the inlet port to the outlet port and the piston face cooperates with a portion of the interior sidewall to provide said cross sectional area. 6. The inline relief valve of claim 5, wherein the cross sectional area of the flow passageway has a constant cross sectional area throughout the length of the flow passageway. 7. The inline relief valve of claim 5, wherein the cross sectional area of the flow passageway has a continuously increasing cross sectional area throughout the length of the flow passageway. 8. The inline relief valve of claim 5, wherein the flow passageway has a centerline that passes from the inlet port to the outlet port, the centerline having a substantially Gaussian shape. 9. The inline relief valve of claim 5 wherein the piston assembly further comprises a central shaft extending from the piston head, a piston stem extending from the piston shaft, a bonnet plate connected to the upper portion of the housing with an aperture therein, and the piston stem extending through the aperture. 10. The inlet relief valve of claim 9 further comprising a plurality of standoffs connected to and extending from the bonnet plate, a top plate supported by the standoffs, a collapsible pin the lower end of which is supported by the piston stem and the upper end of the collapsible pin supported by the top plate, the collapsible pin bent by the fluid pressure pressing against the piston head. 11. The inlet relief valve of claim 10, wherein the top plate has an aperture into which the upper end of the collapsible pin extends, the valve further comprising a threaded fastener that connects to the upper end of the collapsible pin to secure the upper end in the aperture, and whereby the collapsible pin is releasable once collapsed by the fluid flow pressing the piston assembly upward and a new pin insertable therein once the piston assembly has been returned to its closed position. 12. The inlet relief valve of claim 11, wherein the axis of the piston stem is offset to the axis of the central shaft, the bonnet plate aperture is offset from the center of the bonnet plate so that the parabolic piston face is maintained in proper orientation to the interior housing wall as the piston face as the valve is opened by fluid pressure against the piston face. 13. The inlet relief valve of claim 12, wherein the bonnet plate has an interior passageway communicating with the atmosphere and the interior of the house between the piston stem and the bonnet plate, a relief port connected to the passageway. 14. The inlet relief valve of claim 13, further comprising an inlet orifice plate connected at the inlet port and having an orifice hole by which pressurized fluid is admitted to the flow passageway to throttle the pressurized fluid entry to the flow passageway as required. 15. An inline relief valve comprising: a housing having an inlet port, an outlet port and a housing having an interior sidewall defining a curvalearly extending passageway between the inlet port and the outlet port;a piston assembly moveable by pressurized fluid between a closed position to establish a fluid-tight fluid seal along the flow passageway and an open position to permit fluidic flow from the outlet port, the piston assembly comprising a piston head having a parabolically shaped piston face and an elliptical shaped perimeter so that, when moved to the open position, the piston face aligns with the housing interior sidewall to provide a continuous transition from a position immediately upstream of the piston to a position immediately downstream of the piston;wherein the flow passageway in the vicinity of the piston assembly has a cross sectional area normal to a direction of the fluidic flow from the inlet port to the outlet port and the piston face cooperates with a portion of the interior sidewall to provide said cross sectional area;wherein the cross sectional area of the flow passageway has a constant cross sectional area throughout the length of the flow passageway; andwherein the flow passageway has a centerline that passes from the inlet port to the outlet port, the centerline having a substantially Gaussian shape. 16. The inline relief valve of claim 15, wherein the piston assembly further comprises a central shaft extending from the piston head, a piston stem extending from the piston shaft, a bonnet plate connected to the upper portion of the housing with an aperture therein, and the piston stem extending through the aperture. 17. The inlet relief valve of claim 16, further comprising a plurality of standoffs connected to and extending from the bonnet plate, a top plate supported by the standoffs, a collapsible pin the lower end of which is supported by the piston stem and the upper end of the collapsible pin supported by the top plate, the collapsible pin bent by the fluid pressure pressing against the piston head. 18. The inlet relief valve of claim 17, wherein the top plate has an aperture into which the upper end of the collapsible pin extends, the valve further comprising a threaded fastener that connects to the upper end of the collapsible pin to secure the upper end in the aperture, and whereby the collapsible pin is releasable once collapsed by the fluid flow pressing the piston assembly upward and a new pin insertable therein once the piston assembly has been returned to its closed position. 19. The inlet relief valve of claim 18, wherein the axis of the piston stem is offset to the axis of the central shaft, the bonnet plate aperture is offset from the center of the bonnet plate so that the parabolic piston face is maintained in proper orientation to the interior housing wall as the piston face as the valve is opened by fluid pressure against the piston face. 20. The inlet relief valve of claim 19, wherein the bonnet plate has an interior passageway communicating with the atmosphere and the interior of the house between the piston stem and the bonnet plate, a relief port connected to the passageway.

이 특허에 인용된 특허 (13)

이 특허를 인용한 특허 피인용횟수: 2

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특허 상세정보

Inline relief valve with parabolic piston face

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이 특허에 인용된 특허 (13)

이 특허를 인용한 특허 피인용횟수: 2

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Inline relief valve with parabolic piston face

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이 특허에 인용된 특허 (13)

이 특허를 인용한 특허 피인용횟수: 2

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IPC 상세정보(version : 201201)

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