JPS61198536U - - Google Patents
Info
- Publication number
- JPS61198536U JPS61198536U JP8366285U JP8366285U JPS61198536U JP S61198536 U JPS61198536 U JP S61198536U JP 8366285 U JP8366285 U JP 8366285U JP 8366285 U JP8366285 U JP 8366285U JP S61198536 U JPS61198536 U JP S61198536U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- gas recirculation
- negative pressure
- operating
- valve
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Temperature-Responsive Valves (AREA)
Description
図は本考案の一実施例を示す内燃エンジンの排
気還流装置の概略構成図である。
２……吸気管（吸気通路）、７……排気還流量
調整弁（ＥＧＲ弁）、９……作動負圧通路、１４
……チヨーク弁開度制御機構（制御機器）、１７
，１８……作動負圧通路、１９……熱応動型切換
弁、２０，２１……作動負圧通路、２２……大気
開放用連通路、２４……作動負圧通路、２５……
キヤニスタ（制御機器）。
The figure is a schematic configuration diagram of an exhaust gas recirculation system for an internal combustion engine showing an embodiment of the present invention. 2... Intake pipe (intake passage), 7... Exhaust recirculation amount adjustment valve (EGR valve), 9... Operating negative pressure passage, 14
...Chiyoke valve opening control mechanism (control equipment), 17
, 18... Operating negative pressure passage, 19... Thermally responsive switching valve, 20, 21... Operating negative pressure passage, 22... Atmospheric release communication passage, 24... Operating negative pressure passage, 25...
Canister (control equipment).
Claims (1)
の排気環流量をエンジンの運転状態に応じて最適
値となる如く調整する排気還流量調整弁と、負圧
を作動源として所定の制御を行なう制御機器と、
エンジン温度に応じて前記排気還流量調整弁及び
制御機器の作動負圧が大気にリークする状態とリ
ークしない状態とに切り換える単一の熱応動型切
換弁とを具備し、エンジン温度が所定温度以下の
時前記熱応動型切換弁を介して前記排気還流量調
整弁及び制御機器の作動負圧を大気へリークさせ
ることにより、該排気還流量調整弁及び制御機器
の制御を停止し得るようにした内燃エンジンの排
気還流制御装置において、前記排気還流量調整弁
の作動負圧通路を大気開放用連通路を介して前記
制御機器の作動負圧通路に接続し、前記排気還流
量調整弁の作動負圧を大気へリークする方向のみ
許容する逆止弁を前記大気開放用連通路に介装し
たことを特徴とする内燃エンジンの排気還流制御
装置。 An exhaust gas recirculation amount adjustment valve that uses negative pressure as an operating source to adjust the amount of exhaust gas recirculated to the intake passage of an internal combustion engine to an optimal value depending on the operating condition of the engine, and a control that uses negative pressure as an operating source to perform predetermined control. equipment and
A single heat-responsive switching valve is provided that switches between a state in which the operating negative pressure of the exhaust gas recirculation amount adjustment valve and control equipment leaks to the atmosphere and a state in which it does not leak depending on the engine temperature, so that the engine temperature is below a predetermined temperature. At this time, the operating negative pressure of the exhaust gas recirculation amount adjusting valve and the control device is leaked to the atmosphere through the thermally responsive switching valve, so that the control of the exhaust gas recirculation amount adjusting valve and the control device can be stopped. In the exhaust gas recirculation control device for an internal combustion engine, the operating negative pressure passage of the exhaust gas recirculation amount regulating valve is connected to the operating negative pressure passage of the control device via a communication passage for atmospheric release, and the operating negative pressure passage of the exhaust gas recirculation amount regulating valve is An exhaust gas recirculation control device for an internal combustion engine, characterized in that a check valve that allows pressure to leak only to the atmosphere is interposed in the atmosphere opening communication passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8366285U JPS61198536U (en) | 1985-06-03 | 1985-06-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8366285U JPS61198536U (en) | 1985-06-03 | 1985-06-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61198536U true JPS61198536U (en) | 1986-12-11 |
Family
ID=30632493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8366285U Pending JPS61198536U (en) | 1985-06-03 | 1985-06-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61198536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005068808A1 (en) * | 2004-01-20 | 2005-07-28 | Honda Motor Co., Ltd. | Control method and control device for internal combustion engine |
-
1985
- 1985-06-03 JP JP8366285U patent/JPS61198536U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005068808A1 (en) * | 2004-01-20 | 2005-07-28 | Honda Motor Co., Ltd. | Control method and control device for internal combustion engine |
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