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특허 상세정보

Internal combustion engine having lean NOx catalyst

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02M-025/06   
미국특허분류(USC) 602/78 ; 600/280 ; 600/281 ; 600/599 ; 123/551
출원번호 US-0213051 (1998-12-16)
우선권정보 JP0257296 (1998-09-10)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Kenyon & Kenyon
인용정보 피인용 횟수 : 9  인용 특허 : 16
초록

An engine having in an exhaust system a lean NOx catalyst for purifying nitrogen oxide in an oxygen excessive exhaust gas by using a reducing agent, includes an intake air quantity decreasing device for decreasing a quantity of intake air flowing through an intake system when the nitrogen oxide needs to be purified by the lean NOx catalyst, and a combustion heater provided separately from the internal combustion engine also serves as a CO.sub.2 adding device for adding carbon dioxide to the intake air when a flowing quantity in the intake system decrease...

대표
청구항

[ What is claimed is:] [1.]1. An internal combustion engine having in an exhaust system a lean NOx catalyst for purifying nitrogen oxide in an exhaust gas in an oxygen excessive state by using a reducing agent, comprising:CO.sub.2 concentration increasing means for increasing a concentration of carbon dioxide in an intake air flowing through an air intake system of said internal combustion engine; andintake air quantity decreasing means for decreasing a quantity of the intake air flowing through the intake system when the nitrogen oxide is required to be...

이 특허에 인용된 특허 (16)

  1. Okura Eiji (Konan JPX) Tomita Ichizo (Konan JPX) Ida Hiroyuki (Konan JPX). Air conditioner system with combustion heater for automobiles. USP1988064749028.
  2. Suzuki Makoto,JPX. Compression-ignition internal combustion engine having combustion heater. USP2000096119660.
  3. Kobayashi Akira (Nagoya JPX). Constant combustion engine. USP1980074212162.
  4. Kawamura Hideo (Samukawa JPX). Control system for quick heater. USP1989084858825.
  5. Greenwood Stuart A. ; Fluga Eric C.. Diesel engine with a combustor which provides combustion products to reduce NO.sub.x production in a combustion chamber. USP2000046053144.
  6. Backus Harold A. (Wynnewood PA). Engine combustion system. USP1979124176651.
  7. Eller Martin (Ludwigsburg DEX) Peters Odd (Bietigheim-Bissingen DEX). Flame glow unit. USP1995045402757.
  8. Eller Martin (Ludwigsburg DEX) Peters Odd (Bietigheim-Bissingen DEX). Flame starting unit for a combustion device. USP1995015377440.
  9. Yamaguchi Shunzo (Nishio JA) Ozaki Tadashi (Gamagori JA) Konomi Toshiaki (Susono JA). Fuel-air mixture heating device for use with internal combustion engine. USP1977064030464.
  10. Okada Masaki (Yokohama JPX). Heater device for motor vehicle. USP1990054927077.
  11. Kamada Naoki (Hitachi JA) Hasebe Nobutoshi (Ibaraki JA). Intake air heating device for use in internal combustion engine. USP1977064027642.
  12. Sienicki Edward J.. Method and apparatus for reducing engine NOx emissions. USP1998105823170.
  13. Geiger Istvan,DEX. Method and arrangement for controlling exhaust emissions from an internal combustion engine. USP1999095950420.
  14. Tarabulski Theodore J.. Reducing NO.sub.x emissions from an engine while maximizing fuel economy. USP1999075924280.
  15. Yamaguchi Shunzo (Nishio JA) Ozaki Tadashi (Gamagori JA) Kida Masashi (Nishio JA) Konomi Toshiaki (Susono JA). System for heating intake pipe of internal combustion engine. USP1977014002025.
  16. Okada Masaki (Kawasaki JPX). Vehicle heating system. USP1989064836445.