[특허]Force transferring pressure relief device

BS&B Safety Systems, Limited

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특허 상세정보

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Force transferring pressure relief device

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-017/40 F16K-017/14 F16K-025/04 F16K-015/06
미국특허분류(USC)	137/068.11; 137/015.19; 251/086
출원번호	US-0221856 (2005-09-09)
등록번호	US-8915260 (2014-12-23)
발명자 / 주소	Klein, Greg Beair, Charlie Kelly, Joseph P. Brazier, Geof
출원인 / 주소	BS&B Safety Systems, Limited
대리인 / 주소	Finnegan, Henderson, Farabow, Garrett and Dunner LLP
인용정보	피인용 횟수 : 2 인용 특허 : 15

초록
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A pressure relief device is disclosed for a system containing a pressurized fluid. The device includes a main valve body having inlet and outlet flow ports and a valve plug positioned to seal the flowpath of the pressurized fluid between the inlet port and the outlet port of main valve body. A force transmission component is connected to the valve plug and an activation component is installed between the force transmission component and a mounting surface. The activation component is configured to prevent axial movement of the valve plug until a predeter...

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1. A pressure relief device for a system containing a pressurized fluid, comprising; a main valve body including an axial passageway defining an inlet port, an outlet port, and a fluid flowpath between the inlet and outlet ports;a valve plug positioned to seal the inlet port of the main valve body;a force transmission component connected to the valve plug, the force transmission component comprising a curved protrusion member;an activation component installed between the protrusion member and a mounting surface, the activation component configured to prevent axial movement of the valve until a predetermined pressure is exerted on the valve; anda piston slidably housed within the relief device between the protrusion member and the activation component, the piston having a first end and a second end, wherein the first end and second end are exposed to environmental pressure;wherein the force transmission component only transfers an axial force acting on the valve plug to the activation component through the curved protrusion member and piston. 2. The device of claim 1, wherein the axial passageway terminates within the main valve body at a mouth within the main valve body. 3. The device of claim 2, wherein the valve plug comprises a disk shaped valve seat providing a seal at the mouth. 4. The device of claim 2, wherein the valve plug comprises a component sealingly engaged within the axial passageway downstream of the mouth. 5. The device of claim 1, wherein the valve plug comprises a single plate valve plug. 6. The device of claim 1, wherein the activation component is a buckling pin configured to buckle when the pressurized fluid of the system reaches the predetermined pressure. 7. The device of claim 1, wherein the activation component is a pin configured to break when the pressurized fluid of the system reaches the predetermined pressure. 8. The device of claim 1, wherein the distance between the mounting surface and the piston is adjustable to accommodate installation of the activation component. 9. The device of claim 1, wherein the piston and force transmission component are dimensioned such that when the valve plug is positioned to seal the inlet port, the force transmission component is positioned to slidably displace the piston. 10. The device of claim 1, further comprising a pre-loading mechanism configured to axially load the force transmission component such that the valve plug is positioned to seal the inlet port prior to the installation of the activation component. 11. The device of claim 10, wherein the pre-loading mechanism comprises a rotatable arm. 12. The device of claim 1, wherein the force transmission component includes at least one gimballing joint. 13. The device of claim 12, wherein the at least one gimballing joint is connected to the valve plug. 14. The device of claim 1, wherein the force transmission component further comprises a gimballing joint connected to the valve plug and a shaft extending between the gimballing joint and the protrusion member. 15. The device of claim 14, wherein the protrusion member comprises a ball bearing. 16. The device of claim 1, further comprising a sensor activating device positioned along the force transmission component and a sensor fixed relative to the main valve body configured to monitor axial movement of the sensor activating device and the force transmission device. 17. The device of claim 1, further comprising a plurality of sensor activating devices positioned along the force transmission component and a plurality of sensors fixed relative to the main valve body configured to monitor several axial positions of the force transmission device. 18. The device of claim 1, wherein the outlet port exits the main valve body at an angle approximately 90 degrees relative to the axial passageway. 19. The device of claim 1, wherein a chimney extending from the valve plug prevents back pressure from reaching the valve plug downstream side through the outlet port. 20. The device of claim 1, wherein a bellows extends from the valve plug and prevents back pressure from reaching a downstream side of the valve plug through the outlet port. 21. The device of claim 1, wherein the valve plug extends through the main valve body beyond the axial passageway such that the valve plug prevents back pressure from reaching a downstream side of the valve plug through the outlet port. 22. A pressure relief device for a system containing a pressurized fluid, comprising; a main valve body including an axial passageway defining an inlet port, an outlet port, and a fluid flowpath between the inlet and outlet ports;a valve plug positioned to seal the inlet port of the main valve body;a force transmission component connected to the valve plug;a protrusion member connected to the force transmission component, the protrusion member comprising a curved surface;a piston having a base surface and a pin platform, the base surface being configured to contact the protrusion member, wherein the piston is constrained from moving in a non-axial direction by a single cylinder having a uniform diameter;an activation component having a first end and a second end, the first end being engaged with a mounting surface, the second end being engaged with the pin platform, the activation component configured to prevent axial movement of the valve plug until a predetermined pressure is exerted on the valve plug; andwherein the force transmission component is incapable of transferring through the protrusion member any moment resulting from the output force acting on the valve plug to the activation component. 23. The device of claim 22, wherein the force transmission component comprises a gimballing joint connected to the valve plug and a shaft extending between the gimballing joint and the protrusion member. 24. The device of claim 22, wherein the axial passageway terminates within the main valve body at a mouth within the main valve body. 25. The device of claim 24, wherein the valve plug comprises a disk shaped valve seat providing a seal at the mouth. 26. The device of claim 24, wherein the valve plug is sealingly engaged within the axial passageway downstream of the mouth. 27. The device of claim 22, wherein the valve plug comprises a single plate valve plug. 28. The device of claim 22, wherein the activation component is a buckling pin configured to buckle when the pressurized fluid of the system reaches the predetermined pressure. 29. The device of claim 22, wherein the activation component is a spring configured to compress when the pressurized fluid of the system reaches the predetermined pressure. 30. The device of claim 22, wherein the distance between the mounting surface and the piston is adjustable to accommodate installation of the activation component. 31. The device of claim 22, further comprising a pre-loading mechanism configured to axially load the force transmission component such that the valve plug is positioned to seal the inlet port prior to the installation of the activation component between the force transmission component and the mounting surface. 32. The device of claim 31, wherein the pre-loading mechanism comprises a rotatable arm. 33. The device of claim 22, further comprising a sensor activation device positioned along the force transmission component and a sensor fixed relative to the main valve body configured to monitor axial movement of the sensor activation device and the force transmission device. 34. The device of claim 33, wherein the sensor activation device comprises a magnet and the sensor comprises a proximity switch. 35. The device of claim 33, wherein the sensor is integral to or connected to a wireless transmitter. 36. The device of claim 22, further comprising a plurality of sensor activating devices positioned along the force transmission component and a plurality of sensors fixed relative to the main valve body configured to monitor several axial positions of the force transmission device. 37. The device of claim 22, wherein a chimney extending from the valve plug prevents back pressure from reaching the valve plug downstream side through the outlet port. 38. The device of claim 22, wherein a bellows extends from the valve plug and prevents back pressure from reaching a downstream side of the valve plug through the outlet port. 39. The device of claim 22, wherein the valve plug extends through the main valve body beyond the axial passageway such that the valve plug prevents back pressure from reaching a downstream side of the valve plug through the outlet port. 40. A method of installing a pressure relief device for a system containing a pressurized fluid, comprising; providing a main valve body including an axial passageway defining an inlet port, an outlet port, and a fluid flowpath between the inlet and outlet ports;providing a valve plug, a force transmission component connected to the valve plug, a piston, a mounting surface, and an activation component, the force transmission component having a spherical protrusion;positioning the valve plug to seal the inlet port of the main valve body;installing the force transmission component such that only an axial component of output force acting on the valve plug can be transferred therealong;installing the piston in contact with the spherical protrusion, wherein the piston has a first end and a second end exposed to atmospheric pressure; andinstalling an activation component between the piston and the mounting surface such that the activation component is configured to prevent axial movement of the valve plug until a predetermined pressure is exerted on the valve plug. 41. The method of claim 40, further comprising prior to installing an activation component, pre-loading an axial force to the force transmission component such that the valve plug is positioned to seal the inlet port prior to the installation of the activation component between the force transmission component and the mounting surface. 42. The method of claim 40, further comprising installing the force transmission component such that the force transmission component is incapable of transferring any moment resulting from the output force acting on the valve plug to the activation component. 43. The method of claim 40, wherein positioning the valve plug further comprises preventing back pressure from reaching the valve plug through the outlet port by providing a chimney extending from the valve plug beyond the axial passageway. 44. The method of claim 40, wherein positioning the valve plug further comprises preventing back pressure from reaching the valve plug through the outlet port by providing a bellows extending from the valve plug beyond the axial passageway. 45. The method of claim 40, wherein positioning the valve plug further comprises preventing back pressure from reaching the valve plug through the outlet port by having an extended valve plug that extends beyond the axial passageway. 46. The method of claim 40, wherein providing a force transmission component comprises providing a gimballing joint connected to the valve plug and a shaft extending between the gimballing joint and the protrusion.

이 특허에 인용된 특허 (15)

이 특허를 인용한 특허 피인용횟수: 2

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Force transferring pressure relief device

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이 특허에 인용된 특허 (15)

이 특허를 인용한 특허 피인용횟수: 2

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Force transferring pressure relief device

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이 특허에 인용된 특허 (15)

이 특허를 인용한 특허 피인용횟수: 2

IPC 상위 출원인

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IPC 상세정보(version : 201201)

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