[특허]Balanced stem fail-safe valve system

Balanced stem fail-safe valve system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-031/126
출원번호	US-0516704 (1974-10-21)
발명자 / 주소	Herd David P. (Houston TX) McCaskill John W. (Houston TX) Childers Thomas W. (Mandeville LA)
출원인 / 주소	Exxon Production Research Company (Houston TX 02)
인용정보	피인용 횟수 : 22 인용 특허 : 0

초록 ▼

A balanced stem fail-safe valve controls flow of fluids through a submerged pipeline. A closed subsea hydraulic pressure system operates or powers the valve. In the fail-safe mode the operating or reservoir pressure equals ambient sea pressure. A valve housing is arranged on the pipeline and a valve chamber is formed in the valve housing. A valve element is movable in the valve chamber between open and closed positions to control the flow of fluids through the pipeline. A first fluid pressure operable means is connected to the valve element to move the valve element to open position upon application of pump pressure to the first fluid pressure operable means. Electrically operated valves are used to direct the flow of power fluid to and from the valve. A spring is arranged in the valve housing to urge the valve element to its closed position in the event of power failure. A second fluid pressure operable means detached from the valve element engages the valve element upon application of operating or reservoir pressure to the second fluid pressure operable means to balance any unwanted force which might occur when the ambient pressure is greater than the internal valve pressure and permit the spring to close the valve element. The valve operator may be removable by means of a remotely operated manipulator for repair or replacement of the valve system or portions thereof.

대표청구항 ▼

A hydraulically operable valve system for use in controlling flow of fluids through a submerged flowline comprising: a valve housing arranged on said submerged flowline; a valve chamber arranged in said valve housing; a valve element movable in said valve chamber between open and closed positions for controlling the flow of fluids through said flowline; first fluid pressure operable means connected to said valve eLement for urging said valve element from one to another of said positions of said valve element upon application of fluid pressure to said first fluid pressure operable means; biading means arranged in said valve housing for urging said valve element from said other to said one of said positions of said valve element; and second fluid pressure operable means detached from and engagable with said valve element to urge said valve element toward said one position of said valve element upon application of same or about same fluid pressure applied to said first fluid pressure operable means to counterbalance the force applied to said valve element by means of said first pressure operable means.

이 특허를 인용한 특허 (22)

Lenz, Norbert, Actuating device and method for displacing the actuating device.
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Lenz, Norbert, Actuating device and method for displacing the actuating device.
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Iida Akio,JPX ; Iida Yoshio,JPX, Apparatus for operating water gate.
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Gaydos, Stephen Thomas, Blowout preventer and ram actuator.
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Kecskemethy Geza (Budapest HUX) Virag Gyorgy (Budapest HUX) Tihanyi Robert (Budapest HUX) Czirmai Zoltan (Tatabanya HUX), Dispenser having manually operated air controlled valves.
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Herd David P. (Kingwood TX), Fail-safe, non-pressure locking gate valve.
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Coppedge, Charles Don; Louvier, Dewey James; Ronalds, Anna Azzolari; Rumann, Hildebrand A, Gas generator driven hydraulic accumulator.
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Coppedge, Charles Don; Louvier, Dewey James; Ronalds, Anna Azzolari; Rumann, Hildebrand A, Gas generator driven hydraulic pressure supply systems.
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Coppedge, Charles Don; Louvier, Dewey James; Ronalds, Anna Azzolari; Rumann, Hildebrand A, Gas generator driven pressure supply device.
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Holliday David G., Gate valve having fail safe actuator.
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McGee John K. (Houston TX), Hydraulic control assembly.
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Coppedge, Charles Don; Reeves, Joseph; Ramakrishnan, Jayant; Hernandez, Jorge, Multiple gas generator driven pressure supply.
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Askeland, Tom Kjetill, Pressure accumulator to establish sufficient power to handle and operate external equipment and use thereof.
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Larson, Eric Dale; Baker, Brian Scott, Pressure assisted blowout preventer.
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Pierce ; Jr. Elwood K. (Coldspring TX), Pressure balanced gate valve having selective actuator systems.
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Jones, Taylor L.; Hernandez, Philip; Smith, Archie L.; Cain, David E.; Glidden, Gregory L.; Bartlett, Christopher D.; Cunningham, Christopher E.; Luangraj, Paul P., Small bore gate valve.
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Geiger, David; Scheffler, Raymond S., Subsea actuation system.
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Lenz, Norbert, Subsea equipment.
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Martin,David W., Subsea pressure compensation system.
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Eide, Jørgen; Madsen, Henrik Steine, Subsea valve.
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Martino, Jerry A.; Elliott, Declan; Amberg, James, System for controlling fluid flow.
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Geiger, David, Two-stage submersible actuators.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Balanced stem fail-safe valve system 원문보기

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Balanced stem fail-safe valve system 원문보기

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이 특허를 인용한 특허 (22)

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