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특허 상세정보

Method and apparatus for attenuating fuel pump noise in a direct injection internal combustion chamber

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02M-061/14    F02M-061/00    F02M-061/18   
미국특허분류(USC) 123/470
출원번호 UP-0166760 (2008-07-02)
등록번호 US-7527038 (2009-07-01)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Gifford, Krass, Sprinkle, Anderson & Citkowski, P.C.
인용정보 피인용 횟수 : 7  인용 특허 : 51
초록

An apparatus for attenuating fuel pump noise in a direct injection internal combustion engine. In one proposal, the direct injection fuel nozzle is suspended from a fuel rail in a fashion that avoids direct metal-to-metal contact between the injector and the engine block. The direct injection nozzle may also be connected to the fuel rail by a pair of spaced-apart seals which equalize the longitudinal pressure on the nozzle during operation. Enlarged diameter fuel reservoirs and/or a restricted orifice may be provided fluidly in series between the fuel pu...

대표
청구항

The invention claimed is: 1. For use in conjunction with a direct injection internal combustion engine having at least one fuel rail, an engine block, a combustion chamber in the engine block and a passageway in the engine block to the combustion chamber, a direct injection nozzle assembly comprising: a direct injection fuel injector having a main body with a fuel inlet and a tip with a fuel outlet, an injector cup secured to the fuel rail, said injector cup having an open end cavity in fluid communication with the fuel rail and dimensioned to receive a...

이 특허에 인용된 특허 (51)

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