JPH0222660U - - Google Patents
Info
- Publication number
- JPH0222660U JPH0222660U JP10063288U JP10063288U JPH0222660U JP H0222660 U JPH0222660 U JP H0222660U JP 10063288 U JP10063288 U JP 10063288U JP 10063288 U JP10063288 U JP 10063288U JP H0222660 U JPH0222660 U JP H0222660U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- gas recirculation
- recirculation port
- throttle valve
- passage downstream
- 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
- 238000010992 reflux Methods 0.000 claims description 2
- 230000003134 recirculating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Description
第１図は本考案に係るエンジンの排気ガス還流
装置の好適な一実施例の概略構成図、第２図はソ
レノイドバルブの作動制御領域を示すマツプ、第
３図は排気ガス還流制御領域を示すマツプである
。
２……多気筒エンジン、６……気筒、１６……
スロツトル弁、３２……吸気系通路、３４……排
気ガス還流装置、３８……第１排気ガス還流ポー
ト、４０……第２排気ガス還流ポート、４３……
還流ポート切換手段。
Fig. 1 is a schematic configuration diagram of a preferred embodiment of the engine exhaust gas recirculation device according to the present invention, Fig. 2 is a map showing the operation control area of the solenoid valve, and Fig. 3 shows the exhaust gas recirculation control area. It is a map. 2...multi-cylinder engine, 6...cylinder, 16...
Throttle valve, 32... Intake system passage, 34... Exhaust gas recirculation device, 38... First exhaust gas recirculation port, 40... Second exhaust gas recirculation port, 43...
Reflux port switching means.
Claims (1)
気筒に接続される多気筒エンジンにおいて、 前記スロツトル弁下流の吸気系通路に、該スロ
ツトル弁に近接されて開口される第１排気ガス還
流ポートと、 該第１排気ガス還流ポートより下流の吸気系通
路に開口される第２排気ガス還流ポートと、 吸気温度が所定値以上のときには前記第１排気
ガス還流ポートから排気ガスを還流させると共に
、吸気温度が所定値に満たないときには前記第２
排気ガス還流ポートから排気ガスを還流させる還
流ポート切換手段と、 を備えたことを特徴とするエンジンの排気ガス還
流装置。[Claims for Utility Model Registration] In a multi-cylinder engine in which the intake system passage downstream of the throttle valve is branched and connected to each cylinder, an opening is provided in the intake system passage downstream of the throttle valve in close proximity to the throttle valve. a first exhaust gas recirculation port; a second exhaust gas recirculation port that opens into the intake system passage downstream from the first exhaust gas recirculation port; and when the intake air temperature is above a predetermined value, exhaust gas is exhausted from the first exhaust gas recirculation port. While refluxing the gas, when the intake air temperature is less than a predetermined value, the second
An exhaust gas recirculation device for an engine, comprising: a recirculation port switching means for recirculating exhaust gas from an exhaust gas recirculation port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10063288U JPH0222660U (en) | 1988-07-30 | 1988-07-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10063288U JPH0222660U (en) | 1988-07-30 | 1988-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0222660U true JPH0222660U (en) | 1990-02-15 |
Family
ID=31328884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10063288U Pending JPH0222660U (en) | 1988-07-30 | 1988-07-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0222660U (en) |
-
1988
- 1988-07-30 JP JP10063288U patent/JPH0222660U/ja active Pending