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KR960023704A - Exhaust reflux control device for multi-cylinder internal combustion engine - Google Patents

Exhaust reflux control device for multi-cylinder internal combustion engine Download PDF

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Publication number
KR960023704A
KR960023704A KR1019940033926A KR19940033926A KR960023704A KR 960023704 A KR960023704 A KR 960023704A KR 1019940033926 A KR1019940033926 A KR 1019940033926A KR 19940033926 A KR19940033926 A KR 19940033926A KR 960023704 A KR960023704 A KR 960023704A
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KR
South Korea
Prior art keywords
exhaust
catalyst
passage
internal combustion
combustion engine
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Application number
KR1019940033926A
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Korean (ko)
Other versions
KR0142898B1 (en
Inventor
오가네 히로아끼
이시하라 고지
Original Assignee
요시후미 쓰지
닛산 지도샤 가부시끼가이샤
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Publication date
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Priority to KR1019940033926A priority Critical patent/KR0142898B1/en
Publication of KR960023704A publication Critical patent/KR960023704A/en
Application granted granted Critical
Publication of KR0142898B1 publication Critical patent/KR0142898B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/35—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for cleaning or treating the recirculated gases, e.g. catalysts, condensate traps, particle filters or heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/42—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders
    • F02M26/44—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders in which a main EGR passage is branched into multiple passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

다기통 내연기관에 있어서 각 뱅크에서 이미션 성능의 균형을 취해 전체로서의 이미션 성능을 향상시킨다.In multi-cylinder internal combustion engines, the immunity performance is balanced in each bank to improve the overall emission performance.

촉매용량이 작은 쪽의 촉매(16b)를 갖춘 배기통로(15b)의 촉매(16b) 상류에서 배기환류통로(17)의 배기도입구(17a)가 개구하고 있고, 배기의 일부를 배기환류통로(17) 및 분배통로(18)를 개재해서 각 콜렉터(13a,13b)로 유도해 환류하도록 되어 있다. 그리고 분배통로(18) 양단의 각 콜렉터(13a,13b)의 접속부에는 통로면적이 다른 오리피스(23a,23b)가 각각 설치되고, 촉매용량이 작은 촉매(16b)를 갖춘 측의 오리피스(23b)의 통로면적을 촉매용량이 큰 배기정화용 촉매(16a)를 갖춘 측의 오리피스(23a)보다도 크게 형성하고 있다. 즉 촉매용 량이 작은 배기정화용 촉매(16a)를 갖춘 측으로는 촉매용량이 큰 배기정화용 촉매(16b)를 갖춘 측과 비교해서 다량의 EGR을 환류하도록 되어 있다.The exhaust inlet port 17a of the exhaust reflux passage 17 is opened upstream of the catalyst 16b of the exhaust passage 15b having the catalyst 16b having the smaller catalyst capacity, and a part of the exhaust gas flows through the exhaust reflux passage ( 17) and reflux are led to the collectors 13a and 13b via the distribution passage 18. The orifices 23a and 23b having different passage areas are respectively provided at the connecting portions of the collectors 13a and 13b at both ends of the distribution passage 18, and the orifices 23b on the side with the catalyst 16b having a small catalyst capacity are provided. The passage area is formed larger than the orifice 23a on the side with the exhaust purification catalyst 16a having a large catalyst capacity. In other words, a larger amount of EGR is refluxed on the side with the exhaust purification catalyst 16a having a smaller catalyst capacity than the side with the exhaust purification catalyst 16b having a large catalyst capacity.

Description

다기통 내연기관의 배기환류 제어장치Exhaust reflux control device for multi-cylinder internal combustion engine

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른 내연기관의 배기환류 제어장치의 전체구성을 도시한 시스템도.1 is a system diagram showing an overall configuration of an exhaust reflux control apparatus for an internal combustion engine according to the present invention.

Claims (1)

기통군마다 독립해서 설치된 복수의 배기통로 하류에 각각 촉매용량이 다른 배기정화용 촉매를 갖춘 다기통 내연기관에 있어서, 그 기관의 배기의 일부를 상기 기통군마다 분배해서 흡기계로 유도하는 배기환통로를 갖춘 다기통 내연기관의 배기환류 제어장치에 있어서, 상기 배기환류통로의 배기도입구를 상기 촉매 용량이 가장 작은 배기정화용 촉매가 개장된 배기통로의 그 촉매상류에 설치함과 동시에, 상기 배기환류통로의 상기 기통군마다 유효통로 단면적을 상기 촉매용량이 작은 배기정화용 촉매를 갖춘 기통군에 대응하는 것일수록 크게 하는 것을 특징으로 하는 다기통 내연기관의 배기환류 제어장치.In a multi-cylinder internal combustion engine having exhaust purification catalysts having different catalyst capacities downstream of a plurality of exhaust passages provided independently for each cylinder group, an exhaust circulation passage for distributing a part of the exhaust of the engine for each cylinder group to guide the intake machine is provided. An exhaust reflux control apparatus for a multi-cylinder internal combustion engine, comprising: an exhaust inlet of the exhaust reflux passage installed at an upstream of the catalyst in which an exhaust purification catalyst having the smallest catalyst capacity is mounted, and at the same time as the exhaust reflux passage; And exhaust passage control device for a multi-cylinder internal combustion engine, characterized in that the effective passage cross-sectional area of each cylinder group corresponds to a cylinder group having an exhaust purification catalyst having a small catalyst capacity. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940033926A 1994-12-13 1994-12-13 Apparatus for controlling exhaust rotary flow of multiple cylinder internal combustion engine KR0142898B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940033926A KR0142898B1 (en) 1994-12-13 1994-12-13 Apparatus for controlling exhaust rotary flow of multiple cylinder internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940033926A KR0142898B1 (en) 1994-12-13 1994-12-13 Apparatus for controlling exhaust rotary flow of multiple cylinder internal combustion engine

Publications (2)

Publication Number Publication Date
KR960023704A true KR960023704A (en) 1996-07-20
KR0142898B1 KR0142898B1 (en) 1998-08-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940033926A KR0142898B1 (en) 1994-12-13 1994-12-13 Apparatus for controlling exhaust rotary flow of multiple cylinder internal combustion engine

Country Status (1)

Country Link
KR (1) KR0142898B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100482548B1 (en) * 2001-12-06 2005-04-14 현대자동차주식회사 A gasoline direct injection engines
KR20160062467A (en) 2014-11-25 2016-06-02 김동우 Fixed pin devices in the mold

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100482548B1 (en) * 2001-12-06 2005-04-14 현대자동차주식회사 A gasoline direct injection engines
KR20160062467A (en) 2014-11-25 2016-06-02 김동우 Fixed pin devices in the mold

Also Published As

Publication number Publication date
KR0142898B1 (en) 1998-08-17

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