JPS5452220A - Air intake passage for engine - Google Patents
Air intake passage for engineInfo
- Publication number
- JPS5452220A JPS5452220A JP11791877A JP11791877A JPS5452220A JP S5452220 A JPS5452220 A JP S5452220A JP 11791877 A JP11791877 A JP 11791877A JP 11791877 A JP11791877 A JP 11791877A JP S5452220 A JPS5452220 A JP S5452220A
- Authority
- JP
- Japan
- Prior art keywords
- passage
- primary
- air intake
- partition wall
- section
- 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
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
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
PURPOSE: To provide an air intake system for engine, in which its air intake passage is divided into a primary and a secondary sections, and the partition wall is twisted about 90 degrees at an upstream portion and a downstream portion to increase the mixture drawing speed and to give swirl to the mixture flow, whereby efficiency of combustion can be improved.
CONSTITUTION: Partition wall 15 is arranged in air intake passage 4, to divide the passage 4 into a primary section 16 communicated to primary passage 2 of carburetor 1 and having a relatively small cross section equal to that of the primary passage 2 and a secondary section 17 communicated to secondary passage 3 of carburetor 1 and having a relatively large cross section equal to that of the passage 3. The above partition wall 15 is twisted about 90 degrees at an upstream portion and a downstream portion. At the time of low-speed, low-load operation of engine 5, mixture is passed through the primary passage 2 of carburetor 1 and then through the primary section 16 of the intake passage 4 at a relatively high speed, and introduced into combustion chamber 6 with swirl being given to the mixture flow by the twisting of partition wall 15
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52117918A JPS5945803B2 (en) | 1977-10-03 | 1977-10-03 | Engine intake passage device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52117918A JPS5945803B2 (en) | 1977-10-03 | 1977-10-03 | Engine intake passage device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5452220A true JPS5452220A (en) | 1979-04-24 |
JPS5945803B2 JPS5945803B2 (en) | 1984-11-08 |
Family
ID=14723392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52117918A Expired JPS5945803B2 (en) | 1977-10-03 | 1977-10-03 | Engine intake passage device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5945803B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4520776A (en) * | 1982-02-08 | 1985-06-04 | Suzuki Jidosha Kogyo Kabushiki Kaisha | Intake port structure for internal combustion engines |
US4567860A (en) * | 1981-03-16 | 1986-02-04 | Yamaha Hatsudoki Kabushiki Kaisha | Intake system for multiple cylinder engines |
-
1977
- 1977-10-03 JP JP52117918A patent/JPS5945803B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4567860A (en) * | 1981-03-16 | 1986-02-04 | Yamaha Hatsudoki Kabushiki Kaisha | Intake system for multiple cylinder engines |
US4520776A (en) * | 1982-02-08 | 1985-06-04 | Suzuki Jidosha Kogyo Kabushiki Kaisha | Intake port structure for internal combustion engines |
Also Published As
Publication number | Publication date |
---|---|
JPS5945803B2 (en) | 1984-11-08 |
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