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JPS57210156A - Exhaust gas recirculating controller for diesel engine - Google Patents

Exhaust gas recirculating controller for diesel engine

Info

Publication number
JPS57210156A
JPS57210156A JP56092588A JP9258881A JPS57210156A JP S57210156 A JPS57210156 A JP S57210156A JP 56092588 A JP56092588 A JP 56092588A JP 9258881 A JP9258881 A JP 9258881A JP S57210156 A JPS57210156 A JP S57210156A
Authority
JP
Japan
Prior art keywords
negative pressure
suction
valve
suction control
controller
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
JP56092588A
Other languages
Japanese (ja)
Other versions
JPH0315024B2 (en
Inventor
Shigeru Aoki
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Toyota Jidosha Kogyo 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 Toyota Motor Corp, Toyota Jidosha Kogyo KK filed Critical Toyota Motor Corp
Priority to JP56092588A priority Critical patent/JPS57210156A/en
Publication of JPS57210156A publication Critical patent/JPS57210156A/en
Publication of JPH0315024B2 publication Critical patent/JPH0315024B2/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
    • 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
    • F02M26/55—Systems for actuating EGR valves using vacuum actuators
    • F02M26/56—Systems for actuating EGR valves using vacuum actuators having pressure modulation valves
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

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

Abstract

PURPOSE:To steer clear of a lowering of engine maximum power caused by exhaust recirculation as well as to prevent an increase of black smoke, etc., with the exhaust recirculation suspended in high load operation, by installing two suction control valves in a control system of an EGR valve. CONSTITUTION:An EGR valve 12 being intermediately installed between capillary tubes 14 and 16 which are interconnected to an exhaust manifold 10 and a suction tube 6 through, comprises a valve element 18 to be opened or closed by a diaphragm unit 20. This diaphragm unit 20 is to actuate the valve element 18 in accordance with the magnitude of negative pressure to be taken into its suction chamber 22 and have the negative pressure by a vacuum pump 32 introduced into the said suction chamber 22 through a capillary tube 34, etc., in design. In this case, a choke system 35, the 1st and 2nd suction control valves 37 and 59 are intermediately installed through the within of the capillary tube 34, etc. This 1st suction control valve 37 is to be made up so as to cause the negative pressure, which is proportionally decreased according to the amount of treadling accelerator, to be produced at port 43 and the 2nd suction control valve 59 is also to be made up so as to close when negative pressure is below the set value.
JP56092588A 1981-06-16 1981-06-16 Exhaust gas recirculating controller for diesel engine Granted JPS57210156A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56092588A JPS57210156A (en) 1981-06-16 1981-06-16 Exhaust gas recirculating controller for diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56092588A JPS57210156A (en) 1981-06-16 1981-06-16 Exhaust gas recirculating controller for diesel engine

Publications (2)

Publication Number Publication Date
JPS57210156A true JPS57210156A (en) 1982-12-23
JPH0315024B2 JPH0315024B2 (en) 1991-02-28

Family

ID=14058598

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56092588A Granted JPS57210156A (en) 1981-06-16 1981-06-16 Exhaust gas recirculating controller for diesel engine

Country Status (1)

Country Link
JP (1) JPS57210156A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4455987A (en) * 1981-07-17 1984-06-26 Pierburg Gmbh & Co. Kg Method of and an arrangement for controlling return quantities of exhaust
JPS6149052U (en) * 1984-09-06 1986-04-02

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54137520A (en) * 1978-04-14 1979-10-25 Nippon Soken Inc Exhaust gas recycling device
JPS5647651A (en) * 1979-09-27 1981-04-30 Nissan Motor Co Ltd Egr apparatus for diesel engine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54137520A (en) * 1978-04-14 1979-10-25 Nippon Soken Inc Exhaust gas recycling device
JPS5647651A (en) * 1979-09-27 1981-04-30 Nissan Motor Co Ltd Egr apparatus for diesel engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4455987A (en) * 1981-07-17 1984-06-26 Pierburg Gmbh & Co. Kg Method of and an arrangement for controlling return quantities of exhaust
JPS6149052U (en) * 1984-09-06 1986-04-02
JPH0338448Y2 (en) * 1984-09-06 1991-08-14

Also Published As

Publication number Publication date
JPH0315024B2 (en) 1991-02-28

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