JPS5644419A - Device for improving combustion of mixture in four-cycle internal combustion engine - Google Patents

Device for improving combustion of mixture in four-cycle internal combustion engine

Info

Publication number
JPS5644419A
JPS5644419A JP12097979A JP12097979A JPS5644419A JP S5644419 A JPS5644419 A JP S5644419A JP 12097979 A JP12097979 A JP 12097979A JP 12097979 A JP12097979 A JP 12097979A JP S5644419 A JPS5644419 A JP S5644419A
Authority
JP
Japan
Prior art keywords
intake
throttle valve
valve
mixture
combustion chamber
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
JP12097979A
Other languages
Japanese (ja)
Inventor
Yasuo Ikenotani
Junji Otani
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 JP12097979A priority Critical patent/JPS5644419A/en
Priority claimed from US06/157,188 external-priority patent/US4354463A/en
Publication of JPS5644419A publication Critical patent/JPS5644419A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Abstract

PURPOSE: To improve combustion in a light load region in particular, by protruding swirl causing guide walls around the exhaust valve port and intake valve ports of the wall of a combustion chamber, dividing an intake passage into a plurality of branch passages and installing a throttle valve in each branch passage.
CONSTITUTION: Two intake valve ports 5, 5' and an exhaust valve port 6 are opened into the top of a combustion chamber 4 eccentrically thereto. Swirl-causing guide walls 14, 14' shaped as an arc are protruded on the wall of the combustion chamber around the exhaust valve port 6 and the intake valve port 5. Intake branch passages 20, 20' divided from an intake passage 9 are connected to the intake valve ports 5, 5'. The first throttle valve 21 is installed between a carburetor 19 and the divided portions of the passages 20, 20'. The second throttle valve 22 is installed at the inlet portion of one intake branch passage 20' and interlocked with the first throttle valve 21 through a link mechanism 25. The second throttle valve 22 is opened only in a heavy load region to appropriately control the flowing velocity of a mixture.
COPYRIGHT: (C)1981,JPO&Japio
JP12097979A 1979-09-20 1979-09-20 Device for improving combustion of mixture in four-cycle internal combustion engine Pending JPS5644419A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12097979A JPS5644419A (en) 1979-09-20 1979-09-20 Device for improving combustion of mixture in four-cycle internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP12097979A JPS5644419A (en) 1979-09-20 1979-09-20 Device for improving combustion of mixture in four-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

Publications (1)

Publication Number Publication Date
JPS5644419A true JPS5644419A (en) 1981-04-23

Family

ID=14799769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12097979A Pending JPS5644419A (en) 1979-09-20 1979-09-20 Device for improving combustion of mixture in four-cycle internal combustion engine

Country Status (1)

Country Link
JP (1) JPS5644419A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5877128U (en) * 1981-11-19 1983-05-25
JPS59163165U (en) * 1983-04-16 1984-11-01
JPS59224416A (en) * 1983-06-03 1984-12-17 Mazda Motor Corp Combustion chamber structure of engine
JPS6060216A (en) * 1983-09-09 1985-04-06 Daihatsu Motor Co Ltd Internal-combustion engine
JPS62245264A (en) * 1986-04-18 1987-10-26 Fuji Photo Film Co Ltd Image forming method of silver halide color photographic sensitive material

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5877128U (en) * 1981-11-19 1983-05-25
JPS6319550Y2 (en) * 1981-11-19 1988-06-01
JPS59163165U (en) * 1983-04-16 1984-11-01
JPH0244024Y2 (en) * 1983-04-16 1990-11-22
JPS59224416A (en) * 1983-06-03 1984-12-17 Mazda Motor Corp Combustion chamber structure of engine
JPH0119050B2 (en) * 1983-06-03 1989-04-10 Mazda Motor
JPS6060216A (en) * 1983-09-09 1985-04-06 Daihatsu Motor Co Ltd Internal-combustion engine
JPS62245264A (en) * 1986-04-18 1987-10-26 Fuji Photo Film Co Ltd Image forming method of silver halide color photographic sensitive material

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