JPS5746056A - Exhaust gas cleaner of fuel injection type engine - Google Patents

Exhaust gas cleaner of fuel injection type engine

Info

Publication number
JPS5746056A
JPS5746056A JP55123116A JP12311680A JPS5746056A JP S5746056 A JPS5746056 A JP S5746056A JP 55123116 A JP55123116 A JP 55123116A JP 12311680 A JP12311680 A JP 12311680A JP S5746056 A JPS5746056 A JP S5746056A
Authority
JP
Japan
Prior art keywords
exhaust gas
valve
passage
control
fuel injection
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
JP55123116A
Other languages
Japanese (ja)
Other versions
JPS6119815B2 (en
Inventor
Kazuo Kobayashi
Hideki Tanaka
Katsuyoshi Iida
Junji Kamite
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
Toyo Kogyo 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 Mazda Motor Corp, Toyo Kogyo Co Ltd filed Critical Mazda Motor Corp
Priority to JP55123116A priority Critical patent/JPS5746056A/en
Priority to US06/294,352 priority patent/US4445489A/en
Publication of JPS5746056A publication Critical patent/JPS5746056A/en
Publication of JPS6119815B2 publication Critical patent/JPS6119815B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

PURPOSE: To improve the exhaust gas cleaning effect of an exhaust gas cleaner using the reflux of an exhaust gas by stopping the control of an exhaust gas reflux rate and controlling air-fuel ratio in special operation regions with low and high load and further by performing the reverse control in any operation region other than the aforementioned regions.
CONSTITUTION: Signals from an intake negative pressure sensor 15, a water temperature sensor 16, a revolution sensor 17 and exhaust sensor 18 are input to a microcomputer 14. A fuel injection nozzle 5 is provided in the upstream of a throttle valve 4 of an intake passage 3. The intake passage and an exhaust passage 3, 6 are communicated with each other by means of an EGR passage 8 having an EGR valve 9 with which a negative passage 10 having a three way valve 12 is communicated. The nozzle 5 and the valve 12 are feed-back-controlled by the microcomputer 14. In special operations with low and high load, said feed-back-control is performed such that the nozzle 5 is actuated and the valve 12 is stopped, while in an operation other than the above special operations said control is done in the reverse way.
COPYRIGHT: (C)1982,JPO&Japio
JP55123116A 1980-08-25 1980-09-04 Exhaust gas cleaner of fuel injection type engine Granted JPS5746056A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP55123116A JPS5746056A (en) 1980-09-04 1980-09-04 Exhaust gas cleaner of fuel injection type engine
US06/294,352 US4445489A (en) 1980-08-25 1981-08-19 Air-fuel mixture control for automobile engine having fuel injection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55123116A JPS5746056A (en) 1980-09-04 1980-09-04 Exhaust gas cleaner of fuel injection type engine

Publications (2)

Publication Number Publication Date
JPS5746056A true JPS5746056A (en) 1982-03-16
JPS6119815B2 JPS6119815B2 (en) 1986-05-19

Family

ID=14852570

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55123116A Granted JPS5746056A (en) 1980-08-25 1980-09-04 Exhaust gas cleaner of fuel injection type engine

Country Status (1)

Country Link
JP (1) JPS5746056A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59231145A (en) * 1983-06-13 1984-12-25 Matsushita Electric Ind Co Ltd Method of controlling injection quantity of fuel
JPS59231146A (en) * 1983-06-13 1984-12-25 Matsushita Electric Ind Co Ltd Method of controlling injection quantity of fuel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59231145A (en) * 1983-06-13 1984-12-25 Matsushita Electric Ind Co Ltd Method of controlling injection quantity of fuel
JPS59231146A (en) * 1983-06-13 1984-12-25 Matsushita Electric Ind Co Ltd Method of controlling injection quantity of fuel

Also Published As

Publication number Publication date
JPS6119815B2 (en) 1986-05-19

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