[특허]Valve control apparatus and method

Valve control apparatus and method 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-017/22
출원번호	US-0558272 (1975-03-14)
발명자 / 주소	Clayton Hadwen A. (Bartlesville OK)
출원인 / 주소	Phillips Petroleum Company (Bartlesville OK 02)
인용정보	피인용 횟수 : 27 인용 특허 : 0

초록 ▼

An apparatus and method for controlling a fluid pressure actuated valve are provided whereby the valve inlet pressure and valve outlet pressure are applied to control and limit the valve outlet pressure and to substantially reduce the fluid pressure applied to the valve actuating means when the valv

대표청구항 ▼

Apparatus for controlling the flow of fluid through a main conduit means, said apparatus comprising: a valve means for controlling flow through said main conduit, said valve means comprising an upstream inlet portion, a downstream outlet portion, a valve element adapted to vary the restriction to flow from said upstream inlet portion to said downstream outlet portion, and pilot pressure inlet means for applying fluid pressure to said valve element to exert a closing force on said valve element; first conduit means, in fluid communication with said upstream inlet portion of said valve means, for providing a source of fluid pressure responsive to the fluid pressure within said upstream inlet portion; second conduit means, in fluid communication with said downstream outlet portion of said valve means, for providing a source of fluid pressure responsive to the fluid pressure within said downstream outlet portion; flow restriction means for providing a predetermined degree of communication between said first conduit means and a third conduit means; first pilot valve means for controlling fluid communication between said second conduit means and said third conduit means in response to the fluid pressure within said second conduit means; second pilot valve means for controlling fluid communication between said third conduit means and said pilot pressure inlet means in response to the fluid pressure within said first conduit means; and third pilot valve means for controlling fluid communication between said pilot pressure inlet means and a low fluid pressure source in response to the fluid pressure within said first conduit means, said low fluid pressure source having a fluid pressure which is less than the fluid pressure within said second conduit means. A method for operating a valve means having an upstream inlet, a downstream outlet, and a fluid-actuated closure mechanism associated therewith to control the flow of fluid through said valve means, said method comprising: establishing a first fluid pressure signal responsive to the fluid pressure within said upstream inlet of said valve means; establishing a second fluid pressure signal responsive to the fluid pressure within said downstream outlet of said valve means; automatically applying said first fluid pressure signal to said closure mechanism when said second fluid pressure signal exceeds a preselected first pressure value; automatically applying said second fluid pressure signal to said closure mechanism when said first fluid pressure signal is within a preselected range between said first pressure value and a preselected second pressure value, said second pressure value being lower than said first pressure value; and automatically reducing the pressure applied to said closure mechanism to a value lower than said second fluid pressure signal when said first fluid pressure signal is lower than a preselected third pressure value, said third pressure value being lower than said second pressure value.

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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

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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Valve control apparatus and method 원문보기

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Valve control apparatus and method 원문보기

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이 특허를 인용한 특허 (27)

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