[특허]Membrane pump

Membrane pump 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F04B-043/06 F04B-045/00 F16K-015/00
출원번호	US-0508697 (1974-09-23)
우선권정보	UK-0049353 (1973-10-23)
발명자 / 주소	Hamilton Thomas W. (27 Clevehurst Close Stoke Poges Buckinghamshire EN)
인용정보	피인용 횟수 : 59 인용 특허 : 0

초록 ▼

An air pressure-operated membrane pump for pumping a liquid comprises a housing including a chamber which is divided into liquid and air compartments by a floppy flexible membrane extending across it. The air compartment has an air inlet and outlet connected by a duct to the throat of a venturi to which an air supply under pressure is connected. The outlet from the venturi is controlled by a control valve which is itself opened and closed by the movement of the diaphragm to which a closure member of the valve is connected by a control member. When the valve is open, air flows through the venturi and causes air to be drawn from the air compartment of the pump to move the diaphragm in a direction to draw liquid into the liquid compartment in an intake stroke. At the end of this stroke, the part of the membrane to which the control member is fixed moves and closes the control valve. This causes air under pressure to flow from the throat of the venturi into the air compartment to move the diaphragm in a direction to expel liquid from the liquid compartment in a pumping stroke and again at the end of this stroke movement of the diaphragm moves the control member to shut the valve so that the cycle of operations is repeated, the control of operation of the pump thus being effected entirely by the movement of the membrane itself without any external agency.

대표청구항 ▼

A gas pressure-operated membrane pump for pumping liquids, said pump comprising a housing defining a chamber, a limp flexible membrane in said chamber, a gas pressure compartment on one side of said membrane within said chamber, a liquid pumping compartment on the other side of said membrane within said chamber, means defining a gas inlet and outlet to said gas pressure compartment, means defining a liquid inlet and outlet to said pumping compartment, control valve means for controlling the gas supply and outlet from said gas pressure compartment, said control valve including a valve member and means operatively connected to said valve member for moving said valve member between first and second end positions, said means for moving said valve member including a control member and means attaching said control member to said membrane for movement of said control member by said membrane between first and second end positions corresponding to said first and second end positions of said valve member, means for restraining said control member and said valve member in both said first and second end positions, whereby, when said pump is connected to a pressurized gas supply and said valve member and said control member are in said first end positions wherein said means attaching said coNtrol member to said membrane is displaced within said gas pressure compartment, gas under pressure is admitted to said gas pressure compartment and parts of said membrane spaced from said means attaching said membrane to said control member are displaced to reduce the volume of said pumping compartment to discharge liquid therefrom in a discharge stroke, and shortly before the end of said discharge stroke, said membrane initiates movement said control member, against the action of said restraining means, from said first end position of said control member in the direction of said pumping compartment to said second end position thereof and said control member moves said valve member from said first end position to said second end position thereof wherein said valve member causes said gas to be exhausted from said gas pressure compartment, so that parts of said membrane spaced from said means attaching said membrane to said control member are displaced back to increase said volume of said pumping compartment and admit further liquid to said pumping compartment in an intake stroke, and shortly before the end of said intake stroke, said membrane initiates movement said control member against the action of said restraining means in the direction of said gas pressure compartment back into said first end position of said control member and said control member moves said valve member from said second end position back into said first end position thereof wherein said valve member allows further gas under pressure to be admitted to said gas pressure compartment, said pump further comprising means defining a gas inlet duct for connection to said source of gas under pressure, a venturi including a throat, means communicating said gas inlet duct with said venturi, means communicating said gas inlet and outlet to said throat and means defining a gas outlet from said venturi, said valve member being operatively arranged to close said outlet from said venturi when said valve member is in said first end position thereof and to open said outlet to atmosphere when said valve member is in said second end position thereof whereby when said valve member is in said first end position thereof gas supplied under pressure to said inlet duct pressurizes said gas pressure compartment and when said valve member is in said second end position thereof, gas from said inlet duct flows through said venturi and exhausts gas from said gas pressure compartment through said throat.

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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
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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Membrane pump 원문보기

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Membrane pump 원문보기

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이 특허를 인용한 특허 (59)

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