JPS5650251A - Egr system for engine - Google Patents

Egr system for engine

Info

Publication number
JPS5650251A
JPS5650251A JP12637879A JP12637879A JPS5650251A JP S5650251 A JPS5650251 A JP S5650251A JP 12637879 A JP12637879 A JP 12637879A JP 12637879 A JP12637879 A JP 12637879A JP S5650251 A JPS5650251 A JP S5650251A
Authority
JP
Japan
Prior art keywords
egr
intake pipe
engine
amount
control valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP12637879A
Other languages
Japanese (ja)
Other versions
JPS5751536B2 (en
Inventor
Hiroshi Kanesaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kanesaka Gijutsu Kenkyusho KK
Original Assignee
Kanesaka Gijutsu Kenkyusho KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kanesaka Gijutsu Kenkyusho KK filed Critical Kanesaka Gijutsu Kenkyusho KK
Priority to JP12637879A priority Critical patent/JPS5650251A/en
Publication of JPS5650251A publication Critical patent/JPS5650251A/en
Publication of JPS5751536B2 publication Critical patent/JPS5751536B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/08—Modifying distribution valve timing for charging purposes
    • F02B29/083—Cyclically operated valves disposed upstream of the cylinder intake valve, controlled by external means
    • 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
    • F02M26/39—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with two or more EGR valves disposed in series
    • 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
    • F02M26/40—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with timing means in the recirculation passage, e.g. cyclically operating valves or regenerators; with arrangements involving pressure pulsations
    • 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
    • F02M26/65—Constructional details of EGR valves
    • F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves
    • 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

Abstract

PURPOSE:To enable proper correction of EGR amount particularly when an engine is driven under a partial load so as to reduce the negative operation of the engine by providing a pair of EGR valves within an EGR passage whose opening timings are set differently. CONSTITUTION:In an internal combustion engine, an intake pipe 10 and an exhaust pipe 32 are communicated with each other through an EGR intake pipe 31, which enables a recirculation of a part of exhaust gas into the intake pipe 10 so as to reduce the amount of NOx contained in the exhaust gas. The intake pipe 10 is provided with an intake control valve 11 which comprises a rotary valve cooperating with an accel pedal not shown. The EGR pipe 31 is provided with the first and the second EGR rotary valve 11A and 11B arranged in series to each other whose opening timings are set differently. These two valves cooperates with the control valve 11 to open or close so that the EGR amount can be increased corresponding to an increase of the mixture amount or decreased to zero when the control valve 11 is near its fully opened position.
JP12637879A 1979-10-02 1979-10-02 Egr system for engine Granted JPS5650251A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12637879A JPS5650251A (en) 1979-10-02 1979-10-02 Egr system for engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12637879A JPS5650251A (en) 1979-10-02 1979-10-02 Egr system for engine

Publications (2)

Publication Number Publication Date
JPS5650251A true JPS5650251A (en) 1981-05-07
JPS5751536B2 JPS5751536B2 (en) 1982-11-02

Family

ID=14933670

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12637879A Granted JPS5650251A (en) 1979-10-02 1979-10-02 Egr system for engine

Country Status (1)

Country Link
JP (1) JPS5650251A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1278953A4 (en) * 2000-05-03 2004-10-27 Cooper Standard Automotive Inc Egr valve apparatus
KR100787271B1 (en) 2000-05-03 2007-12-21 쿠퍼-스탠다드 오토모티브 인코포레이티드 Egr valve apparatus

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS607955A (en) * 1983-06-27 1985-01-16 Colpo Co Ltd Multiplex liquid feeder
DE8336955U1 (en) * 1983-12-23 1984-02-16 Otto, Roland, 8752 Kleinostheim Compressed gas gun
GB2301398B (en) * 1994-03-07 1998-01-14 Komatsu Mfg Co Ltd Variable compression ratio engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1278953A4 (en) * 2000-05-03 2004-10-27 Cooper Standard Automotive Inc Egr valve apparatus
KR100787271B1 (en) 2000-05-03 2007-12-21 쿠퍼-스탠다드 오토모티브 인코포레이티드 Egr valve apparatus

Also Published As

Publication number Publication date
JPS5751536B2 (en) 1982-11-02

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