JPS56167812A - Combustion chamber of engine - Google Patents

Combustion chamber of engine

Info

Publication number
JPS56167812A
JPS56167812A JP7197280A JP7197280A JPS56167812A JP S56167812 A JPS56167812 A JP S56167812A JP 7197280 A JP7197280 A JP 7197280A JP 7197280 A JP7197280 A JP 7197280A JP S56167812 A JPS56167812 A JP S56167812A
Authority
JP
Japan
Prior art keywords
projecting piece
inlet
exhaust
port
exhaust port
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
JP7197280A
Other languages
Japanese (ja)
Inventor
Yasuyuki Morita
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 JP7197280A priority Critical patent/JPS56167812A/en
Publication of JPS56167812A publication Critical patent/JPS56167812A/en
Pending legal-status Critical Current

Links

Landscapes

  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

PURPOSE: To prevent sucked air from flowing into an exhaust port during the over- lapping checking the lowering of the engine power by setting the projection of a projecting piece at a specified value after it is provided on the wall a combustion chamber between an inlet port and an exhaust port surrounding the inlet port.
CONSTITUTION: A circular-arc-shaped projecting piece 13 is formed integral on the surface 3 of a combustion chamber between an inlet port 4 and an exhaust port 5 while surrounding the inlet port 4. The projection of the projecting piece 13 is so arranged as to coincide the height of an undersurface periphery 14a of a bevel section 14 in an inlet valve when the inlet valve 9 and the exhaust valve 11 become the same in the lift level H during the overlapping thereof. In addition, the ends 13a and 13b of the projecting piece 13 are set at the optimal position. During the overlapping of the inlet and exhaust valves, the sucked air from the inlet port 4 is prevented from flowing into the exhaust port 5 with the projecting piece when and before they are the same in the lift level. Thereafter, the opening of the exhaust valve 11 is reduced so much to keep the sucked air from flowing into the exhaust port 5.
COPYRIGHT: (C)1981,JPO&Japio
JP7197280A 1980-05-28 1980-05-28 Combustion chamber of engine Pending JPS56167812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7197280A JPS56167812A (en) 1980-05-28 1980-05-28 Combustion chamber of engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7197280A JPS56167812A (en) 1980-05-28 1980-05-28 Combustion chamber of engine

Publications (1)

Publication Number Publication Date
JPS56167812A true JPS56167812A (en) 1981-12-23

Family

ID=13475883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7197280A Pending JPS56167812A (en) 1980-05-28 1980-05-28 Combustion chamber of engine

Country Status (1)

Country Link
JP (1) JPS56167812A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6075716A (en) * 1983-09-30 1985-04-30 Hino Motors Ltd Cylinder head of diesel engine
JPS63189613A (en) * 1987-02-03 1988-08-05 Mazda Motor Corp Structure of engine combustion chamber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6075716A (en) * 1983-09-30 1985-04-30 Hino Motors Ltd Cylinder head of diesel engine
JPS63189613A (en) * 1987-02-03 1988-08-05 Mazda Motor Corp Structure of engine combustion chamber

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