Fluid flow control members for use with valves
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16K-039/02
F16K-001/38
출원번호
US-0202876
(2008-09-02)
등록번호
US-8256462
(2012-09-04)
발명자
/ 주소
Lin, Chun
Miller, Eric Alan
Pelfrey, Roy Ronald
Sun, Yan Tao
Jun, Fan Jian
출원인 / 주소
Emerson Process Management Regulator Technologies, Inc.
대리인 / 주소
Hanley, Flight & Zimmerman, LLC
인용정보
피인용 횟수 :
3인용 특허 :
3
초록▼
Fluid flow control members for use with valves are described herein. An example fluid flow control member for use with a valve includes a body having a first seating surface to control a flow of fluid through the valve. The body defines a second seating surface opposite the first seating surface to
Fluid flow control members for use with valves are described herein. An example fluid flow control member for use with a valve includes a body having a first seating surface to control a flow of fluid through the valve. The body defines a second seating surface opposite the first seating surface to control a flow of fluid through the valve. Additionally, the body defines an aperture to receive a stem of the valve, and a bore surrounded by the first seating surface to receive at least one of a seal or a sliding member each of which have a first surface to be engaged by a second surface of a spring seat coupled to the stem to control a fluid flow through the valve.
대표청구항▼
1. A poppet for use with a valve, comprising: a first body having a first seating surface to sealingly engage a second body of the valve, wherein the first body defines: a second seating surface opposite the first seating surface to sealingly engage a plug of the valve; anda fluid flow channel thro
1. A poppet for use with a valve, comprising: a first body having a first seating surface to sealingly engage a second body of the valve, wherein the first body defines: a second seating surface opposite the first seating surface to sealingly engage a plug of the valve; anda fluid flow channel through the first body to fluidly couple a chamber of the valve to another chamber, wherein the fluid flow channel has an opening positioned adjacent the second seating surface; andan aperture to receive a stem of the valve, the stem comprising a surface to substantially prevent fluid flow through the fluid flow channel when the first seating surface sealingly engages the second body and the plug is in a fully open position. 2. The poppet as defined in claim 1, wherein the fluid flow channel is to increase a fluid flow rate between the other chamber and the chamber of the valve. 3. The poppet as defined in claim 1, wherein the fluid flow channel is to increase a rate at which a pressure of the other chamber equalizes with a pressure of the chamber of the valve. 4. The poppet as defined in claim 1, wherein the first body further defines a plurality of substantially flat surfaces to enable gripping of an exterior surface of the first body. 5. The poppet as defined in claim 4, wherein the plurality of substantially flat surfaces are step-shaped surfaces. 6. The poppet as defined in claim 4, wherein the exterior surface is a tapered surface. 7. The poppet as defined in claim 1, further comprising a sliding member having an exterior surface to slidably and sealingly engage a bore defined by the first body, wherein the bore is coaxially aligned with the aperture and surrounded by the first seating surface. 8. The poppet as defined in claim 7, wherein the sliding member has a surface to be engaged by the surface of the stem to control a fluid flow between the other chamber and the chamber of the valve. 9. The poppet as defined in claim 8, wherein the sliding member is to move relative to the bore in response to being engaged by the surface. 10. The poppet as defined in claim 1, wherein the stem has a cylindrical body. 11. The poppet as defined in claim 1, wherein a size of the aperture corresponds to a size of the stem to guide the stem relative to the body. 12. The poppet as defined in claim 1, wherein the fluid flow channel is substantially coaxial with the aperture. 13. The poppet of claim 8, wherein the surface of the stem comprises a surface of a spring seat coupled to the stem. 14. The poppet of claim 1, wherein the opening is positioned between the aperture and the second seating surface. 15. A poppet for use with a valve, comprising: a first body having a first seating surface to sealingly engage a second body of the valve, wherein the first body defines: a second seating surface opposite the first seating surface to sealingly engage a plug of the valve;an aperture to receive a stem of the valve;at least one fluid flow channel through the first body to fluidly couple a chamber of the valve to another chamber, wherein the at least one fluid flow channel has an opening positioned between the aperture and the second seating surface;a sliding member having an exterior surface to slidably and sealingly engage a bore defined by the first body, wherein the bore is coaxially aligned with the aperture and surrounded by the first seating surface; anda plate coupled to the first body to position the sliding member within the bore. 16. The poppet as defined in claim 15, further comprising a biasing element positioned within the bore to urge the sliding member away from the first body. 17. A fluid flow control member for use with a valve, comprising: a body having a first seating surface to control a flow of fluid through the valve, wherein the body defines: a second seating surface opposite the first seating surface to control a flow of fluid through the valve;an aperture to receive a stem of the valve; anda bore surrounded by the first seating surface to receive at least one of a seal or a sliding member each of which have a first surface to be engaged by a second surface of a spring seat coupled to the stem to control a fluid flow through the valve. 18. The fluid flow control member as defined in claim 17, wherein the sliding member is to move relative to the bore in response to being engaged by the second surface and a movement of the stem. 19. The fluid flow control member as defined in claim 17, further comprising a plate coupled to the body to position at least one of the seal or the sliding member within the bore. 20. The fluid flow control member as defined in claim 17, further comprising a first biasing element positioned within the bore to urge the sliding member away from the body. 21. The fluid flow control member as defined in claim 20, further comprising a second biasing element positioned between a surface of the bore and a surface of the spring seat to urge the spring seat away from the body. 22. The fluid flow control member as defined in claim 17, wherein the sliding member is symmetrical. 23. The fluid flow control member as defined in claim 17, wherein an exterior surface of the body further defines a plurality of stepped portions to enable gripping the exterior surface of the body. 24. The fluid flow control member as defined in claim 23, wherein the exterior surface is a tapered surface. 25. An internal valve for controlling a fluid flow, comprising: a valve body;a poppet having first and second opposing seating surfaces to control fluid flow through the internal valve, the first seating surface to sealingly engage the valve body, the second seating surface to sealingly engage a plug;a passage through the poppet to decrease a time required to equalize a fluid pressure across the internal valve; andan aperture to receive a stem of the internal valve, the stem comprising a surface to substantially prevent fluid flow through the passage when the first seating surface sealingly engages the valve body and the plug is in a fully open position. 26. The internal valve as defined in claim 25, wherein the surface comprises a spring seat to engage a surface of the poppet surrounding the passage to substantially prevent fluid from flowing through the passage. 27. The internal valve as defined in claim 26, wherein the surface of the poppet is defined by a sliding member disposed within a bore of the poppet, wherein the bore of the poppet is coaxially aligned with the aperture.
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