Control valve having “C” seal
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0122376
(2008-05-16)
|
등록번호 |
US-7681594
(2010-04-21)
|
발명자
/ 주소 |
- Gossett, James L.
- Fitzgerald, William V.
- Micheel, Raymond W.
- Sanders, Donald
- Bush, Donald R.
- Helfer, Wade J.
|
대리인 / 주소 |
Marshall, Gerstein & Borun LLP
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
8 |
초록
▼
A control valve having a shiftable valve plug includes a valve body having an inlet, an outlet, a flow passage extending between the inlet and the outlet, and defining a longitudinal axis, a generally cylindrical valve cage disposed within the valve body and sized to receive the valve plug, with the
A control valve having a shiftable valve plug includes a valve body having an inlet, an outlet, a flow passage extending between the inlet and the outlet, and defining a longitudinal axis, a generally cylindrical valve cage disposed within the valve body and sized to receive the valve plug, with the valve cage including at least one aperture comprising at least a portion of the flow passage, a portion of the valve cage disposed adjacent a portion of the valve body at an interface. A seal having a C-shaped cross section is provided and is disposed at the interface between the valve cage and the valve body, and a retainer is disposed adjacent the interface and positioned to secure the seal against movement along the longitudinal axis.
대표청구항
▼
What is claimed is: 1. A control valve comprising: a valve body having a first portion, a second portion, and a flow passage extending between the first portion and the second portion; a generally cylindrical seat defined adjacent the second portion; a generally cylindrical valve cage mounted withi
What is claimed is: 1. A control valve comprising: a valve body having a first portion, a second portion, and a flow passage extending between the first portion and the second portion; a generally cylindrical seat defined adjacent the second portion; a generally cylindrical valve cage mounted within the valve body so as to be at least partially disposed in the flow passage, the valve cage having a first end fixedly secured to the valve body and a second end sized to be disposed adjacent to the seat; a retaining ring sized for insertion within the valve body, the retaining ring spaced from the valve body to form a gap; and a seal disposed in the gap at an interface between the seat and the second end of the valve cage, the seal having a C-shaped cross-section. 2. The control valve of claim 1, wherein the seat includes a generally circumferential flange and the C-shaped cross section of the seal includes an open part, the seal disposed within the gap such that the open part faces the flange. 3. The control valve of claim 1, wherein the seat includes a generally circumferential flange and the C-shaped cross section of the seal includes an open part, the seal disposed within the gap such that the open part faces away from the flange. 4. The control valve of claim 1, wherein the valve cage includes a longitudinal axis, and wherein the seal is oriented within the gap so as to resiliently accommodate outward thermal expansion of the valve cage relative to the valve body in a direction perpendicular to the longitudinal axis. 5. The control valve of claim 1, wherein the retaining ring comprises a snap ring. 6. The control valve of claim 5, wherein the valve body includes a recessed channel, and wherein the snap ring is disposed within the recessed channel. 7. The control valve of claim 1, wherein the retaining ring is disposed in a recessed channel, the recessed channel defined in at least one of the valve cage and the valve body. 8. The control valve of claim 1, wherein the valve body includes an indentation sized to receive the seal. 9. The control valve of claim 1, wherein the retaining ring is secured to the valve body by at least one of threads, a pin, a plurality of pins, welding, adhesives, and mechanical fasteners. 10. The control valve of claim 1, wherein the valve cage includes a hardened outer surface. 11. The control valve of claim 1, wherein the seal includes a coating. 12. The control valve of claim 11, wherein the coating comprises a soft metal coating. 13. The control valve of claim 11, wherein the coating comprises a hardened wear resistant coating. 14. The control valve of claim 1, wherein an outer surface of the valve cage includes a coating and the seal includes a coating, the coating of the outer surface of the valve cage compatible with the coating of the seal.
이 특허에 인용된 특허 (8)
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Stoll Kurt,DEX ; Kees Ulrich,DEX, Choke valve.
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Rynders Steven Walton ; Minford Eric ; Tressler Richard Ernest ; Taylor Dale M., Compliant high temperature seals for dissimilar materials.
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Gossett,James L.; Fitzgerald,William V.; Micheel,Raymond W.; Sanders,Donald, Control valve having "C" seal.
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Luthe ; Fred J. ; Hays ; Allen E., Control valve trim assembly.
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Tripp Dale S. (Erie PA), Erosion resistant soft seated valve trim.
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Alman,Paul T.; Barron,Kimball R., Multiple material valve plug for high temperature operation.
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Berchem Rtger (Essen DEX), Throttle device, especially for a throttle valve, with throttle cage of ceramic and metal layers.
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Steinke Joseph H., Valve and filter therefor.
이 특허를 인용한 특허 (4)
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Rowland, Clifford M.; Schmidt, William L., Closure lip seal relief.
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Haibel, Joshua A., Tool-less closure.
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Haibel, Joshua A.; Schmidt, William L., Tool-less closure.
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Bell, Brandon Wayne; Fleming, Leslie E., Valve trim apparatus for use with valves.
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