JPS643256A - Exhaust reflux control device for diesel engine - Google Patents

Exhaust reflux control device for diesel engine

Info

Publication number
JPS643256A
JPS643256A JP62156880A JP15688087A JPS643256A JP S643256 A JPS643256 A JP S643256A JP 62156880 A JP62156880 A JP 62156880A JP 15688087 A JP15688087 A JP 15688087A JP S643256 A JPS643256 A JP S643256A
Authority
JP
Japan
Prior art keywords
atmospheric temperature
opening
egr
egr valve
low speed
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
JP62156880A
Other languages
Japanese (ja)
Other versions
JPH0826821B2 (en
Inventor
Hiroyuki Nishimura
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.)
Mazda Motor Corp
Original Assignee
Mazda 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 Mazda Motor Corp filed Critical Mazda Motor Corp
Priority to JP62156880A priority Critical patent/JPH0826821B2/en
Publication of JPS643256A publication Critical patent/JPS643256A/en
Publication of JPH0826821B2 publication Critical patent/JPH0826821B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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

  • Exhaust-Gas Circulating Devices (AREA)

Abstract

PURPOSE:To make prevention of smoke generation compatible with reduction of NOx by controlling EGR quantity at high load as the atmospheric temperature becomes higher in a high speed region and controlling EGR quantity at high load as the atmospheric temperature becomes lower in a low speed region. CONSTITUTION:Detection values of an atmospheric temperature sensor 5, an accelerator opening sensor 7 and so on are input to a central processing unit 8 to control the opening of EGR valve 4 through a solenoid valve 4a. The central processing unit 8 is adapted to decrease the opening of the EGR valve 4 during low speed of an engine and increase the opening of the EGR 4 during high speed of the engine when the atmospheric temperature is low (less than 5 deg.C) according to a detection value of the atmospheric temperature sensor 5. On the other hand, when the atmospheric temperature is high (more than 35 deg.C), the opening of the EGR valve is corrected to increase at the time of low speed, and at the time of high speed, the opening of EGR valve 4 is corrected to decrease.
JP62156880A 1987-06-24 1987-06-24 Exhaust gas recirculation control device for diesel engine Expired - Fee Related JPH0826821B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62156880A JPH0826821B2 (en) 1987-06-24 1987-06-24 Exhaust gas recirculation control device for diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62156880A JPH0826821B2 (en) 1987-06-24 1987-06-24 Exhaust gas recirculation control device for diesel engine

Publications (2)

Publication Number Publication Date
JPS643256A true JPS643256A (en) 1989-01-09
JPH0826821B2 JPH0826821B2 (en) 1996-03-21

Family

ID=15637408

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62156880A Expired - Fee Related JPH0826821B2 (en) 1987-06-24 1987-06-24 Exhaust gas recirculation control device for diesel engine

Country Status (1)

Country Link
JP (1) JPH0826821B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01302223A (en) * 1988-05-30 1989-12-06 Nissha Printing Co Ltd Light shielding film and its production
JPH0787286A (en) * 1993-06-30 1995-03-31 Ricoh Co Ltd Picture forming device
KR100740360B1 (en) * 2000-06-21 2007-07-16 소니 가부시끼 가이샤 Information recording/reproducing apparatus and method
JP2009536283A (en) * 2006-04-13 2009-10-08 マック トラックス インコーポレイテッド Engine having exhaust gas treatment device and method for treating engine exhaust gas

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01302223A (en) * 1988-05-30 1989-12-06 Nissha Printing Co Ltd Light shielding film and its production
JPH0787286A (en) * 1993-06-30 1995-03-31 Ricoh Co Ltd Picture forming device
KR100740360B1 (en) * 2000-06-21 2007-07-16 소니 가부시끼 가이샤 Information recording/reproducing apparatus and method
JP2009536283A (en) * 2006-04-13 2009-10-08 マック トラックス インコーポレイテッド Engine having exhaust gas treatment device and method for treating engine exhaust gas

Also Published As

Publication number Publication date
JPH0826821B2 (en) 1996-03-21

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees