JPS57210155A - Exhaust recirculation controller for diesel engine - Google Patents

Exhaust recirculation controller for diesel engine

Info

Publication number
JPS57210155A
JPS57210155A JP56092589A JP9258981A JPS57210155A JP S57210155 A JPS57210155 A JP S57210155A JP 56092589 A JP56092589 A JP 56092589A JP 9258981 A JP9258981 A JP 9258981A JP S57210155 A JPS57210155 A JP S57210155A
Authority
JP
Japan
Prior art keywords
control valve
suction
valve
negative pressure
exhaust recirculation
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
JP56092589A
Other languages
Japanese (ja)
Other versions
JPH0315025B2 (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
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 filed Critical Toyota Motor Corp
Priority to JP56092589A priority Critical patent/JPS57210155A/en
Publication of JPS57210155A publication Critical patent/JPS57210155A/en
Publication of JPH0315025B2 publication Critical patent/JPH0315025B2/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

Abstract

PURPOSE:To prevent a vacuum pumping loss in time of exhaust recirculation stoppage as well as to prevent an increase of black smoke, etc., with the exhaust recirculation suspended as high load operation takes place, by installing a hydraulic pressure control valve and a directional control valve (selector) 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 in common, comprises a valve element 18 to be opened or closed by a diaphragm unit 20. This diaphragm unit 20 is to energizes the valve element 18 in accorance 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 suction chamber 22 through a capillary tube 34, etc., in design. In this case, a choke system 35, a directional control valve (selector) 59 and a suction control valve 37 are installed within said capillary tube 34, etc., and the directional control valve 59 is governed to close via a controller 6 when high speed, high load operation takes place. In addition, the suction control valve 37 is made up so as to cause the negative pressure, which is proportionally decreased according to the amount of treadling accelerator, to be produced at a port 43.
JP56092589A 1981-06-16 1981-06-16 Exhaust recirculation controller for diesel engine Granted JPS57210155A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56092589A JPS57210155A (en) 1981-06-16 1981-06-16 Exhaust recirculation controller for diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56092589A JPS57210155A (en) 1981-06-16 1981-06-16 Exhaust recirculation controller for diesel engine

Publications (2)

Publication Number Publication Date
JPS57210155A true JPS57210155A (en) 1982-12-23
JPH0315025B2 JPH0315025B2 (en) 1991-02-28

Family

ID=14058626

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56092589A Granted JPS57210155A (en) 1981-06-16 1981-06-16 Exhaust recirculation controller for diesel engine

Country Status (1)

Country Link
JP (1) JPS57210155A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11905903B2 (en) 2020-07-24 2024-02-20 Powerhouse Engine Solutions Switzerland IP Holding GmbH Port heating system and method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5554660A (en) * 1978-10-19 1980-04-22 Nissan Motor Co Ltd Compression ignition type internal-combustion engine
JPS5647651A (en) * 1979-09-27 1981-04-30 Nissan Motor Co Ltd Egr apparatus for diesel engine
JPS5657953A (en) * 1979-10-17 1981-05-20 Toshiba Corp Gas chromatograph

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5554660A (en) * 1978-10-19 1980-04-22 Nissan Motor Co Ltd Compression ignition type internal-combustion engine
JPS5647651A (en) * 1979-09-27 1981-04-30 Nissan Motor Co Ltd Egr apparatus for diesel engine
JPS5657953A (en) * 1979-10-17 1981-05-20 Toshiba Corp Gas chromatograph

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11905903B2 (en) 2020-07-24 2024-02-20 Powerhouse Engine Solutions Switzerland IP Holding GmbH Port heating system and method

Also Published As

Publication number Publication date
JPH0315025B2 (en) 1991-02-28

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