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JPS5685520A - Internal conbustion engine - Google Patents

Internal conbustion engine

Info

Publication number
JPS5685520A
JPS5685520A JP16298279A JP16298279A JPS5685520A JP S5685520 A JPS5685520 A JP S5685520A JP 16298279 A JP16298279 A JP 16298279A JP 16298279 A JP16298279 A JP 16298279A JP S5685520 A JPS5685520 A JP S5685520A
Authority
JP
Japan
Prior art keywords
piston
top portion
combustion chamber
cavity
cylinder head
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
JP16298279A
Other languages
Japanese (ja)
Inventor
Kotaro Tanaka
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.)
Daihatsu Motor Co Ltd
Original Assignee
Daihatsu Motor 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 Daihatsu Motor Co Ltd filed Critical Daihatsu Motor Co Ltd
Priority to JP16298279A priority Critical patent/JPS5685520A/en
Publication of JPS5685520A publication Critical patent/JPS5685520A/en
Pending legal-status Critical Current

Links

Landscapes

  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

PURPOSE: To improve the lean fuel-air mixture in ignitability and quick combustibility by forming the lower surface of the cylinder head of an internal combustion engine into a plane and providing a combustion chamber and a cavity in the top portion of the piston.
CONSTITUTION: The lower surface of a cylinder head 3 is formed into a plane, where a suction port 6 having a suction valve 8 and an exhaust port 7 having an exhaust valve 9 are provided. In the top portion of a piston 4, directly below the exhaust valve 9, a combustion chamber 10 is provided, and the top portion of the piston 4 outside the combustion chamber 10 is formed into a squashing area to the plane surface of the cylinder head 3. Moreover, in the top portion of the piston 4, directly below the suction valve 8, a cavity 13 is provided, and a turning groove 14 is provided from the cavity 13 to the combustion chamber 10. Thereby, the turning flow in the direction of an arrow A generated during the suction descending stroke of the piston 4 is accelerated during the compression ascending stroke of the piston 4 to present an intense turning flow phenomenon and ignited by a spark from an ignition plug 15.
COPYRIGHT: (C)1981,JPO&Japio
JP16298279A 1979-12-14 1979-12-14 Internal conbustion engine Pending JPS5685520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16298279A JPS5685520A (en) 1979-12-14 1979-12-14 Internal conbustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16298279A JPS5685520A (en) 1979-12-14 1979-12-14 Internal conbustion engine

Publications (1)

Publication Number Publication Date
JPS5685520A true JPS5685520A (en) 1981-07-11

Family

ID=15764958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16298279A Pending JPS5685520A (en) 1979-12-14 1979-12-14 Internal conbustion engine

Country Status (1)

Country Link
JP (1) JPS5685520A (en)

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