JPS6432059A - Combustion controller for engine - Google Patents

Combustion controller for engine

Info

Publication number
JPS6432059A
JPS6432059A JP18549287A JP18549287A JPS6432059A JP S6432059 A JPS6432059 A JP S6432059A JP 18549287 A JP18549287 A JP 18549287A JP 18549287 A JP18549287 A JP 18549287A JP S6432059 A JPS6432059 A JP S6432059A
Authority
JP
Japan
Prior art keywords
exhaust
valve
suction
flow control
overlap
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
JP18549287A
Other languages
Japanese (ja)
Inventor
Koji Onishi
Yoshikuni Yada
Hidetoshi Nobemoto
Makoto Hotate
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 JP18549287A priority Critical patent/JPS6432059A/en
Priority to US07/180,781 priority patent/US4875455A/en
Publication of JPS6432059A publication Critical patent/JPS6432059A/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
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder

Landscapes

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

Abstract

PURPOSE:To improve the extent of exhaust gas recirculating control precision by installing two exhaust valves in one cylinder, making the exhaust valve on one side operable so as to cause a suction-exhaust overlap to become larger, and installing a flow control valve in an exhaust passage extending from an exhaust port of this exhaust valve. CONSTITUTION:Two exhaust valves 4 and 5 are installed in a cylinder 1, and each of exhaust ports 7a and 7b is extending from respective exhaust valves 4 and 5. Timing of the exhaust valve 4 is made selectable with a mode operating at the same valve opening timing with the exhaust valve 5 and another mode delaying the valve closing timing and operating it in making a suction- exhaust overlap larger. In the exhaust port 7a of the exhaust valve 4, there is provided with a flow control valve 8, and at an intermediate load area of an engine, the exhaust valve 4 is selected to a mode where the suction-exhaust overlap becomes larger, while opening of the flow control valve 8 is controlled according to load, and control over an EGR value by a backflow of exhaust gas is carried out.
JP18549287A 1987-04-28 1987-07-27 Combustion controller for engine Pending JPS6432059A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP18549287A JPS6432059A (en) 1987-07-27 1987-07-27 Combustion controller for engine
US07/180,781 US4875455A (en) 1987-04-28 1988-04-12 Automobile exhaust gas recirculating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18549287A JPS6432059A (en) 1987-07-27 1987-07-27 Combustion controller for engine

Publications (1)

Publication Number Publication Date
JPS6432059A true JPS6432059A (en) 1989-02-02

Family

ID=16171716

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18549287A Pending JPS6432059A (en) 1987-04-28 1987-07-27 Combustion controller for engine

Country Status (1)

Country Link
JP (1) JPS6432059A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992014923A1 (en) * 1991-02-21 1992-09-03 T&N Technology Limited Internal combustion engines
US6932062B2 (en) 2003-11-07 2005-08-23 Kabushiki Kaisha Toyota Jidoshokki Compression ignition type internal combustion engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4916607B1 (en) * 1968-03-13 1974-04-23

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4916607B1 (en) * 1968-03-13 1974-04-23

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992014923A1 (en) * 1991-02-21 1992-09-03 T&N Technology Limited Internal combustion engines
US6932062B2 (en) 2003-11-07 2005-08-23 Kabushiki Kaisha Toyota Jidoshokki Compression ignition type internal combustion engine

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