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특허 상세정보

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내보내기 페이스북 공유 카카오톡 공유

Method and device for operating an internal combustion engine with low nitrogen oxide emissions

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F01N-003/00   
미국특허분류(USC) 60/274 ; 60/276 ; 60/285 ; 60/286 ; 60/301 ; 60/277
출원번호 US-0897769 (1997-07-21)
우선권정보 DE-0029163 (1996-07-19)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Evenson, McKeown, Edwards & Lenahan, P.L.L.C.
인용정보 피인용 횟수 : 67  인용 특허 : 0
초록
▼

A method and an apparatus for operating an internal combustion engine, in particular a motor-vehicle diesel engine, with low nitrogen-oxide emissions, has a first mode of operation which sets an early start of fuel injection and a nitrogen-oxide reducing agent is added to the stream of exhaust gases upstream of a nitrogen-oxide-reducing exhaust-gas catalytic converter, and a second mode of operation which sets a late start of fuel injection. A temperature sensor measures the temperature of the exhaust-gas catalytic converter. The engine is operated in th...

대표
청구항
▼

[ What is claimed is:] [2.] Method for operating an internal combustion engine with low nitrogen-oxide emissions, comprising the steps ofproviding a first mode of operation in which an early start of fuel injection is set and a nitrogen-oxide reducing agent is added to a stream of exhaust gases upstream of a nitrogen-oxide-reducing exhaust-gas catalytic converter, providing a second mode of operation in which a late start of fuel injection is set;measuring temperature in the exhaust-gas catalytic converter;operating the engine in the second mode of opera...

이 특허를 인용한 특허 피인용횟수: 67

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