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특허 상세정보

Electromagnetically driven valve control apparatus and method for an internal combustion engine

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F01L-009/04   
미국특허분류(USC) 123/090.11 ; 251/129.01 ; 335/266
출원번호 US-0211917 (1998-12-15)
우선권정보 JP-0007622 (1998-01-19)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Kenyon & Kenyon
인용정보 피인용 횟수 : 66  인용 특허 : 7
초록

A control apparatus for a valve of an internal combustion engine electrically opens and closes an intake or exhaust valve of the internal combustion engine with reduced power consumption while securing stable operating characteristics. The electromagnetically driven valve is opened and closed by combining an electromagnetic force produced by upper and lower electromagnets and an elastic force produced by upper and lower springs. At a timing at which one of the upper and lower electromagnets is to attract the valve, a predetermined attracting current is s...

대표
청구항

[ What is claimed is:] [1.] An apparatus for opening and closing a valve of an internal combustion engine, wherein the apparatus combines an electromagnetic force produced by an electromagnet and an elastic force produced by an elastic member to drive the valve, the apparatus comprising:an attracting current supplier that supplies an attracting current to the electromagnet to attract the valve to the electromagnet;a step-out detector that detects a step out of the valve from a predetermined opening and closing operation;attracting current increase means ...

이 특허를 인용한 특허 피인용횟수: 66

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