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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Fuel fill vapor recovery system with differential pressure control valve

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16K-017/04   
미국특허분류(USC) 141/59 ; 141/44 ; 141/46 ; 141/302
출원번호 US-0299282 (1994-08-31)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 65  인용 특허 : 0
초록
▼

A refueling vapor recovery system for a vehicle utilizes recirculation of a portion of the displaced vapor and combines a vapor vent valve and a recirculation control into a single differential pressure valve assembly. A vapor vent conduit provides fuel tank vapor pressure to one side of a diaphragm and, through a restricted orifice, to the other side of the diaphragm, the other side being further connected by a recirculation conduit to the tank filler neck. When a gas cap closes the filler neck from the atmosphere, the orifice allows pressure to equaliz...

대표
청구항
▼

In a vehicle having a fuel tank that is filled through a fill pipe having a filler neck that is open to atmosphere when a gas cap is removed therefrom for refueling, a vapor recovery system for storing vapor displaced from the fuel tank by liquid fuel from a refueling nozzle inserted in the filler neck comprising, in combination: vapor storage canister means; a valve assembly having a housing defining first and second chambers separated by a diaphragm carrying a valve member, the housing further defining an internal conduit separate from the first and se...

이 특허를 인용한 특허 피인용횟수: 65

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