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특허 상세정보

Engine secondary air flow control system

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02B-075/10   
미국특허분류(USC) 60/278 ; 60/290 ; 123/119A
출원번호 US-0619341 (1975-10-03)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 20  인용 특허 : 0
초록

An engine has an air injection system injecting air into the exhaust system to reduce emissions. The injection is scheduled by a bypass valve that normally permits injection, but bypasses or dumps the air as a function of a carburetor ported vacuum signal that is also used to control exhaust gas recirculation. A control is provided to maintain air injection for a short period during certain engine idle conditions, but dumping of the air after this period. An engine deceleration override is provided to dump the air when this condition exists, to prevent b...

대표
청구항

An airflow control system for an internal combustion engine having an engine driven air pump with a discharge outlet delivering air to the engine, a selectively operable air bypass valve associated with the outlet when operable movable to a dump position diverting air from the outlet, the valve being rendered operable in response to engine manifold vacuum acting thereon at engine deceleration vacuum levels, the engine having a carburetor providing a throttle valve ported vacuum signal varying from an atmospheric pressure level to manifold vacuum levels a...

이 특허를 인용한 특허 피인용횟수: 20

  1. Wheeler Dean F. (Redford Township ; Wayne County MI). Automotive exhaust emission system. USP1981124302936.
  2. Collins George R. (Rochester MI) Large William R. (Detroit MI). Control unit. USP1977094050249.
  3. Hewelt James Michael ; Stewart Etsuko Muraji. Crankcase ventilation system diagnostic. USP1998085792949.
  4. Harada Setsuo (Hiroshima JP). Engine acceleration detection apparatus. USP1979044147143.
  5. Cavallino Francesco (Pinerolo ITX) Martinez Pasquale (Turin ITX) Vaccaneo Stefano (Turin ITX) Allione Michele (Turin ITX). Exhaust emission control system for internal combustion engines. USP1981024250707.
  6. Kohama Tokio (Nishio JPX) Obayashi Hideki (Hoi JPX) Ozaki Tadashi (Nishio JPX) Nohira Hidetaka (Mishima JPX). Exhaust gas purifying apparatus for internal combustion engine. USP1980094222237.
  7. Siki Kazuhiro (Toyota JPX). Exhaust gas purifying system for engines. USP1979044148189.
  8. Goto ; Mikio ; Sasano ; Mitsunori ; Oosawa ; Koichi ; Yoshihara ; Mitsuy a. Exhaust gas recirculating control system. USP1978094114576.
  9. Weathers Lawrence M. (Warren MI) Wellenkotter Carl A. (Rochester MI). Exhaust gas recirculation control. USP1980044195605.
  10. Bamsey Robert G. (Kitchener CAX) VAN DER Male Dirk B. (Cambridge CAX). Exhaust gas recirculation control valve and heat exchanger. USP1979014134377.
  11. Gropp Karl H. (Grosse Pointe Woods MI). Exhaust gas valve position regulator assembly. USP1979044149501.
  12. Klimazewski Leo T. (St. Louis MO) McNairy James A. (St. Louis MO). Forced air control valve for exhaust system of internal combustion engine. USP1979124178755.
  13. Takahashi ; Akira. Intake regulator for internal combustion engine. USP1978104117814.
  14. Takagi Yasuo (Yokohama JPX) Nakajima Yasuo (Yokosuka JPX) Sugihara Kunihiko (Yokohama JPX) Hisatomi Takashi (Yokohama JPX). Internal combustion engine with emission control systems. USP1979044149377.
  15. Cavallino Francesco (Pinerolo ITX) Martinez Pasquale (Turin ITX) Allione Michele (Turin ITX) Schiavuzzi Roberto (Turin ITX). Internal combustion engine with exhaust emission control system. USP1981054269029.
  16. Cavallino Francesco (Pinerolo ITX) Martinez Pasquale (Turin ITX) Schiavuzzi Roberto (Turin ITX) Allione Michele (Turin ITX). Internal combustion engine with exhaust emission control system. USP1981024250860.
  17. O'Daniel Gregory Francis. Positive crankcase ventilation system diagnostic. USP1999045897597.
  18. Shibata Norio (Susono JPX). Secondary air control valve device. USP1979024139983.
  19. Danby, Susannah Elizabeth; Faulkner, Stephen Anthony; Heaton, David Mark; Southall, Robert. System for controlling exhaust aftertreatment. USP2011027886528.
  20. Luken, Todd R.; Robinson, James S.. Turbocharged engine using an air bypass valve. USP2012038136357.