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특허 상세정보

Method and system for monitoring an evaporative purge system

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02M-033/02   
미국특허분류(USC) 73/1181 ; 123/521
출원번호 US-0515844 (1995-08-16)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 51  인용 특허 : 0
초록

A method and system for monitoring an evaporative purge system for malfunctions and leaks. First, a plurality of predetermined entry conditions are checked for satisfaction. If the plurality of predetermined entry conditions have been met, a flow of vapor in the evaporative purge system is determined. The evaporative purge system is then sealed from atmosphere so as to pull a vacuum on the fuel tank. The vacuum is compared to a predetermined vacuum range. If the vacuum is within the predetermined vacuum range, the vacuum is allowed to stabilize to obtain...

대표
청구항

For use with a vehicle having an evaporative purge system including a fuel tank, an evaporation canister for trapping and subsequently using vapor dispelled from the fuel tank, and an internal combustion engine having an intake manifold all in fluid communication, a method for monitoring the evaporative purge system for malfunctions and leaks, the method comprising: (a) determining whether a plurality of predetermined entry conditions have been met; (b) if the plurality of predetermined entry conditions have been met, determining a flow of vapor in the e...

이 특허를 인용한 특허 피인용횟수: 51

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