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 engineInfo
- 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
- combustion chamber
- mixture
- 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
Links
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
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
Priority Applications (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 |
Applications Claiming Priority (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 |
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) | 1979-06-09 | 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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5877128U (en) * | 1981-11-19 | 1983-05-25 | 三菱自動車工業株式会社 | Internal combustion engine intake system |
JPS59163165U (en) * | 1983-04-16 | 1984-11-01 | トヨタ自動車株式会社 | Intake system for two-valve multi-cylinder internal combustion engine |
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 |
-
1979
- 1979-09-20 JP JP12097979A patent/JPS5644419A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5877128U (en) * | 1981-11-19 | 1983-05-25 | 三菱自動車工業株式会社 | Internal combustion engine intake system |
JPS6319550Y2 (en) * | 1981-11-19 | 1988-06-01 | ||
JPS59163165U (en) * | 1983-04-16 | 1984-11-01 | トヨタ自動車株式会社 | Intake system for two-valve multi-cylinder internal combustion engine |
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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