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JPS5623520A - Method for improving combustion of air-fuel mixture in 4-stroke cycle internal combustion engine - Google Patents

Method for improving combustion of air-fuel mixture in 4-stroke cycle internal combustion engine

Info

Publication number
JPS5623520A
JPS5623520A JP9996879A JP9996879A JPS5623520A JP S5623520 A JPS5623520 A JP S5623520A JP 9996879 A JP9996879 A JP 9996879A JP 9996879 A JP9996879 A JP 9996879A JP S5623520 A JPS5623520 A JP S5623520A
Authority
JP
Japan
Prior art keywords
intake
gas
exhaust
combustion
passage
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
JP9996879A
Other languages
Japanese (ja)
Other versions
JPS6217091B2 (en
Inventor
Junji Otani
Yasuo Ikenotani
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.)
Honda Motor Co Ltd
Original Assignee
Honda 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP9996879A priority Critical patent/JPS5623520A/en
Priority to US06/157,188 priority patent/US4354463A/en
Publication of JPS5623520A publication Critical patent/JPS5623520A/en
Publication of JPS6217091B2 publication Critical patent/JPS6217091B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

PURPOSE: To prevent generation of harmful gasses such as HC, CO, etc. in the combustion of a 4-stroke cycle internal combustion engine, by providing in an exhaust gas system a means to generate turbulence by the combustion gas flowing back to the combustion chamber and also providing in an intake system a means to assist in generating turbulent flow of the back-flowing combustion gas.
CONSTITUTION: The upper wall of the combustion chamber 4 is provided with an intake valve opening 5 and exhaust valve opening 6 with valve seats 7, 8 respectively, and at each valve port an intake passage 9 and exhaust passage 10 are formed. The exhaust valve port 6 is provided with a guide wall 14 which is for generating rotating currents in the already combusted gas which flows back to the combustion chamber 4 through the exhaust gas passage 10 due to the overlap of opening of intake and exhaust valves 12 and 13. A spiral partition board 19 is provided in the intake passage 9, and it gives rotating currents to the intake gas and assists in effectively generating rotating currents in the back-flowing already combusted gas.
COPYRIGHT: (C)1981,JPO&Japio
JP9996879A 1979-06-09 1979-08-06 Method for improving combustion of air-fuel mixture in 4-stroke cycle internal combustion engine Granted JPS5623520A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP9996879A JPS5623520A (en) 1979-08-06 1979-08-06 Method for improving combustion of air-fuel mixture in 4-stroke cycle internal combustion engine
US06/157,188 US4354463A (en) 1979-06-09 1980-06-06 Device for improving combustion efficiency of mixture in four cycle internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9996879A JPS5623520A (en) 1979-08-06 1979-08-06 Method for improving combustion of air-fuel mixture in 4-stroke cycle internal combustion engine

Publications (2)

Publication Number Publication Date
JPS5623520A true JPS5623520A (en) 1981-03-05
JPS6217091B2 JPS6217091B2 (en) 1987-04-16

Family

ID=14261461

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9996879A Granted JPS5623520A (en) 1979-06-09 1979-08-06 Method for improving combustion of air-fuel mixture in 4-stroke cycle internal combustion engine

Country Status (1)

Country Link
JP (1) JPS5623520A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002030937A (en) * 2000-04-28 2002-01-31 Gureitochiren:Kk Engine and system
CN100422521C (en) * 2005-05-27 2008-10-01 三菱自动车工业株式会社 Combustion chamber structure for engine
CN110080873A (en) * 2018-01-25 2019-08-02 丰田自动车株式会社 internal combustion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002030937A (en) * 2000-04-28 2002-01-31 Gureitochiren:Kk Engine and system
CN100422521C (en) * 2005-05-27 2008-10-01 三菱自动车工业株式会社 Combustion chamber structure for engine
CN110080873A (en) * 2018-01-25 2019-08-02 丰田自动车株式会社 internal combustion engine
CN110080873B (en) * 2018-01-25 2021-03-19 丰田自动车株式会社 internal combustion engine

Also Published As

Publication number Publication date
JPS6217091B2 (en) 1987-04-16

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