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JPS56121853A - Exhaust gas recirculation system of engine with reduced number of cylinder having turbocharger - Google Patents

Exhaust gas recirculation system of engine with reduced number of cylinder having turbocharger

Info

Publication number
JPS56121853A
JPS56121853A JP2646680A JP2646680A JPS56121853A JP S56121853 A JPS56121853 A JP S56121853A JP 2646680 A JP2646680 A JP 2646680A JP 2646680 A JP2646680 A JP 2646680A JP S56121853 A JPS56121853 A JP S56121853A
Authority
JP
Japan
Prior art keywords
exhaust gas
passage
gas recirculation
cylinders
exhaust
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.)
Pending
Application number
JP2646680A
Other languages
Japanese (ja)
Inventor
Kazuya Kunii
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP2646680A priority Critical patent/JPS56121853A/en
Publication of JPS56121853A publication Critical patent/JPS56121853A/en
Pending legal-status Critical Current

Links

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
    • F02M26/42—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
    • F02M26/43—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 exhaust from only one cylinder or only a group of cylinders is directed to the intake of the engine
    • 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
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • 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
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

PURPOSE: To maintain sufficient exhaust gas recirculation ratio during the supercharging period by connecting an exhaust gas recirculation passage to an exhaust passage at the upstream of the exhaust turbine of a supercharger while connecting the other end of said recirculation passage to a suction passage at the down stream of the throttle valve.
CONSTITUTION: The fuel supply to cylinders #4W#6 is cut off when the engine is under light load and, at the same time, a shut off valve 5 is closed to supply all fresh suction air to cylinders #1W#3 to perform partial cylinder running by the cylinders #1W#3. In such engine running with reduced number of cylinders, an exhaust turbine 9 of a supercharger 8 is installed in an exhaust gas passage 4a of the working cylinders #1W#3 and a compressor 10 of the supercharger 8 is installed in a common suction passage 2. The exhaust gas passage 4a at the upstream of the exhaust turbine 9 and the suction passage 2 at the downstream of a throttle valve 3 is connected by an exhaust gas recirculation passage 11 with an exhaust gas recirculation valve 12 installed therein.
COPYRIGHT: (C)1981,JPO&Japio
JP2646680A 1980-03-03 1980-03-03 Exhaust gas recirculation system of engine with reduced number of cylinder having turbocharger Pending JPS56121853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2646680A JPS56121853A (en) 1980-03-03 1980-03-03 Exhaust gas recirculation system of engine with reduced number of cylinder having turbocharger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2646680A JPS56121853A (en) 1980-03-03 1980-03-03 Exhaust gas recirculation system of engine with reduced number of cylinder having turbocharger

Publications (1)

Publication Number Publication Date
JPS56121853A true JPS56121853A (en) 1981-09-24

Family

ID=12194286

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2646680A Pending JPS56121853A (en) 1980-03-03 1980-03-03 Exhaust gas recirculation system of engine with reduced number of cylinder having turbocharger

Country Status (1)

Country Link
JP (1) JPS56121853A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010223040A (en) * 2009-03-23 2010-10-07 Hino Motors Ltd Exhaust gas recirculation method and apparatus for turbocharged engine
CN103557098A (en) * 2013-10-29 2014-02-05 潍柴动力股份有限公司 Exhaust gas recirculation system and exhaust gas recirculation rate control method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010223040A (en) * 2009-03-23 2010-10-07 Hino Motors Ltd Exhaust gas recirculation method and apparatus for turbocharged engine
CN103557098A (en) * 2013-10-29 2014-02-05 潍柴动力股份有限公司 Exhaust gas recirculation system and exhaust gas recirculation rate control method

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