JPS57110720A - Suction apparatus of internal combustion engine - Google Patents
Suction apparatus of internal combustion engineInfo
- Publication number
- JPS57110720A JPS57110720A JP55187036A JP18703680A JPS57110720A JP S57110720 A JPS57110720 A JP S57110720A JP 55187036 A JP55187036 A JP 55187036A JP 18703680 A JP18703680 A JP 18703680A JP S57110720 A JPS57110720 A JP S57110720A
- Authority
- JP
- Japan
- Prior art keywords
- suction
- passage
- sub
- throttle valve
- communication 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.)
- Pending
Links
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
PURPOSE: To improve the measures to purify exhaust gas and the countermeasures against the cost of fuel, by providing a communication passage that communicates a main suction passage with a sub-suction passage at their intermediate points, and arranging throttle valves upstream of said communication passage and in the suction passages, and a throttle valve down stream of said communication passage and in the sub-suction passage.
CONSTITUTION: The sub-suction passage 10 has a cross-sectional area less than that of the main suction passage 9, and both the passages are controlled by a suction valve 17 to become in and out of communication with a combustion chamber 8. The communication passage 26 is arranged for communicating both the suction passages 9, 10 and the throttle valves 23W25 are provided upstream and downstream of the communication passage 26. When the engine is driven under low load, the throttle valve 23 is actuated to supply major part of the suction gas via the sub-suction passage 10 into the combustion chamber. As the flow rate increase, the throttle valve 25 is actuated followed by the action of the throttle valve 24. Consequently, the shift from the driving under low load to the driving under high load can be effected smoothly, and purifying of the exhaust gas and lowering of the cost for fuel can be enhanced.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55187036A JPS57110720A (en) | 1980-12-29 | 1980-12-29 | Suction apparatus of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55187036A JPS57110720A (en) | 1980-12-29 | 1980-12-29 | Suction apparatus of internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57110720A true JPS57110720A (en) | 1982-07-09 |
Family
ID=16199050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55187036A Pending JPS57110720A (en) | 1980-12-29 | 1980-12-29 | Suction apparatus of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57110720A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0867610A2 (en) * | 1997-03-28 | 1998-09-30 | Hidaka Engineering Co., Ltd. | Air intake system for internal combustion engine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5539348B2 (en) * | 1975-08-11 | 1980-10-09 |
-
1980
- 1980-12-29 JP JP55187036A patent/JPS57110720A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5539348B2 (en) * | 1975-08-11 | 1980-10-09 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0867610A2 (en) * | 1997-03-28 | 1998-09-30 | Hidaka Engineering Co., Ltd. | Air intake system for internal combustion engine |
| EP0867610A3 (en) * | 1997-03-28 | 1999-05-26 | Hidaka Engineering Co., Ltd. | Air intake system for internal combustion engine |
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