[특허]Cryogenic pump

Cryogenic pump 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F04B-015/08
출원번호	US-0384970 (1995-02-07)
발명자 / 주소	Brown Bruce G. (Corona CA) Crowl Robert E. (Corpus Christi TX) Westermann Phillip J. (El Toro CA)
출원인 / 주소	Cryogenic Group, Inc. (Murrieta CA 02)
인용정보	피인용 횟수 : 30 인용 특허 : 0

초록 ▼

A cryogenic pump capable of operating with a sub-zero net positive suction head includes a reciprocating piston positioned in a cylindrical housing for dividing the interior of the housing into a supercharger chamber and an evacuation chamber on opposite sides of the piston. A supercharger chamber valve, positioned directly behind the reciprocating piston, controls the flow of liquified gas from a gas inlet into the supercharger chamber. A fixed piston, extending into the evacuation chamber, engages a cylindrical skirt carried by the reciprocating piston to form a high pressure chamber between the two pistons. Liquified case from the high pressure chamber is supplied to a gas outlet via a passageway in the fixed piston.

대표청구항 ▼

A cryogenic pump for liquified gases comprising: a cylindrical housing having a longitudinal axis and an inlet section at one end and discharge section at the other end; a moveable piston positioned in the cylindrical housing for reciprocating movement therein from the end of its forward stroke adjacent the outlet end of the housing to the end of the return stoke, adjacent the inlet end of the housing, the moveable piston dividing the interior of the cylindrical housing into a supercharger chamber and an evacuation chamber on opposite sides of the piston, the piston having a skirt extending into the evacuation chamber; a liquified gas inlet; at least one supercharger inlet port extending through the cylindrical housing in the inlet section thereof for channeling liquified gas from the liquified gas inlet into the supercharger chamber, the port being positioned behind the moveable piston whereby the position of the port does not interfere with an optimum position for the end of the return stroke of the moveable piston; a supercharger chamber valve communicating with the supercharger inlet port for controlling the flow of liquified gas through the port; a fixed piston mounted in the housing in sliding engagement with the moveable piston skirt to form a high pressure chamber between the moveable and fixed pistons; a high pressure chamber suction valve disposed between the supercharger chamber and the high pressure chamber for controlling the flow of liquified gas into the high pressure chamber; a high pressure outlet extending through the fixed piston and the discharge section; and a discharge valve positioned in the high pressure outlet for controlling the flow of liquified gas through the outlet.

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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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Cryogenic pump 원문보기

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이 특허를 인용한 특허 (30)

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