JPS5578136A - Idling setting device for engine equipped with control on number of cylinders - Google Patents
Idling setting device for engine equipped with control on number of cylindersInfo
- Publication number
- JPS5578136A JPS5578136A JP15221378A JP15221378A JPS5578136A JP S5578136 A JPS5578136 A JP S5578136A JP 15221378 A JP15221378 A JP 15221378A JP 15221378 A JP15221378 A JP 15221378A JP S5578136 A JPS5578136 A JP S5578136A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- cylinders
- idling
- air
- manifold
- 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
- Exhaust-Gas Circulating Devices (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE: To prevent the lowering of the combined exhaust temperature and operate exhaust cleaning effectively by means of a three-element catalyst, by the method wherein a part of the heated air discharged from an idling exhaust manifold when a part of the cylinders are operated in the idle time is used as the suction air of the operating cylinders.
CONSTITUTION: When three cylinders are operated in the idle time, signal "L" from number of cylinders control circuit 35 is inputted to three-directional electromagnetic valve 39, and signal "L" from number of revolutions switch 45, which detects the condition of idling, is inputted to electromagnetic valves 41, 42; hence, paths M-N are connected. Consequently, air intake valve 30 and air return valve 32 are totally opened and exhaust return valve 32 is totally closed. By this, air of atmospheric pressure is drawn into idling suction manifold 22 and a part of the air discharged from idling exhaust manifold 26 is supplied to operating suction manifold 21. By this, the temperature of the exhaust gas discharged from the operating exhaust manifold is increased, and thereby the temperature of the combined exhaust can be increased.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15221378A JPS5578136A (en) | 1978-12-08 | 1978-12-08 | Idling setting device for engine equipped with control on number of cylinders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15221378A JPS5578136A (en) | 1978-12-08 | 1978-12-08 | Idling setting device for engine equipped with control on number of cylinders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5578136A true JPS5578136A (en) | 1980-06-12 |
Family
ID=15535535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15221378A Pending JPS5578136A (en) | 1978-12-08 | 1978-12-08 | Idling setting device for engine equipped with control on number of cylinders |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5578136A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4320726A (en) * | 1979-03-16 | 1982-03-23 | Nissan Motor Company, Limited | Internal combustion engine |
| US4344393A (en) * | 1979-06-22 | 1982-08-17 | Nissan Motor Company, Limited | Internal combustion engine |
| JPS5884341U (en) * | 1981-12-01 | 1983-06-08 | トヨタ自動車株式会社 | Split operation controlled internal combustion engine |
-
1978
- 1978-12-08 JP JP15221378A patent/JPS5578136A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4320726A (en) * | 1979-03-16 | 1982-03-23 | Nissan Motor Company, Limited | Internal combustion engine |
| US4344393A (en) * | 1979-06-22 | 1982-08-17 | Nissan Motor Company, Limited | Internal combustion engine |
| JPS5884341U (en) * | 1981-12-01 | 1983-06-08 | トヨタ自動車株式会社 | Split operation controlled internal combustion engine |
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