JPS6254264U - - Google Patents
Info
- Publication number
- JPS6254264U JPS6254264U JP14416785U JP14416785U JPS6254264U JP S6254264 U JPS6254264 U JP S6254264U JP 14416785 U JP14416785 U JP 14416785U JP 14416785 U JP14416785 U JP 14416785U JP S6254264 U JPS6254264 U JP S6254264U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- exhaust gas
- recirculation valve
- valve
- gas recirculation
- 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
- 238000001514 detection method Methods 0.000 claims 1
- 239000000446 fuel Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案のデイーゼル機関の排気還流制
御装置の実施例を示す構成図、第２図は第１図の
排気還流制御装置の作動を説明するフローチヤー
ト、第３図及び第４図は同特性図、第５図及び第
６図は第３図及び第４図に対応する従来の排気還
流制御装置の特性図である。
図中、１はデイーゼルエンジン、５は排気還流
弁、７はバキユームスイツチングバルブ、１２は
制御器としての電子制御装置、１３はクラツチセ
ンサ、１４は車速センサである。
Fig. 1 is a block diagram showing an embodiment of the exhaust recirculation control device for a diesel engine according to the present invention, Fig. 2 is a flowchart explaining the operation of the exhaust recirculation control device of Fig. 1, and Figs. 3 and 4 are The characteristic diagrams, FIGS. 5 and 6, are characteristic diagrams of the conventional exhaust gas recirculation control device corresponding to FIGS. 3 and 4. In the figure, 1 is a diesel engine, 5 is an exhaust recirculation valve, 7 is a vacuum switching valve, 12 is an electronic control device as a controller, 13 is a clutch sensor, and 14 is a vehicle speed sensor.
Claims (1)
の排気ガス還流量を制御する排気還流弁と、クラ
ツチのＯＮ・ＯＦＦを検知するクラツチセンサと
を有し、このクラツチセンサのＯＦＦ検知信号に
より排気還流弁を閉成方向に制御する制御器を備
えた自動車用デイーゼル機関の排気還流制御装置
。 (2) 上記制御器が走行・停止を検知する車速セ
ンサを有して、この車速センサから走行信号を検
知したとき上記排気還流弁の閉成方向の制御を行
うようにした実用新案登録請求の範囲第１項記載
の自動車用デイーゼル機関の排気還流制御装置。 (3) 上記排気還流弁の閉成方向の制御が排気還
流弁に大気圧を供給して排気還流弁を遮断するバ
キユームスイツチングバルブを介して行われるよ
うにした実用新案登録請求の範囲第１項又は第２
項記載の自動車用デイーゼル機関の排気還流制御
装置。 (4) 上記排気還流弁の閉成方向の制御が、排気
還流弁にデユーテイ比制御される負圧を供給して
排気還流弁を絞るバキユームコントロールバルブ
を介して行われるようにした実用新案登録請求の
範囲第１項又は第２項記載の自動車用デイーゼル
機関の排気還流制御装置。[Scope of Claim for Utility Model Registration] (1) Equipped with an exhaust recirculation valve that controls the amount of exhaust gas recirculated to the intake side according to the fuel injection amount and engine speed, and a clutch sensor that detects ON/OFF of the clutch. An exhaust recirculation control device for an automotive diesel engine, comprising a controller that controls an exhaust recirculation valve in the closing direction based on an OFF detection signal from the clutch sensor. (2) A request for utility model registration in which the controller has a vehicle speed sensor that detects running/stopping, and controls the closing direction of the exhaust gas recirculation valve when a running signal is detected from the vehicle speed sensor. An exhaust gas recirculation control device for an automotive diesel engine according to item 1. (3) The scope of the utility model registration claim is that the control of the closing direction of the exhaust gas recirculation valve is performed via a vacuum switching valve that supplies atmospheric pressure to the exhaust gas recirculation valve and shuts off the exhaust gas recirculation valve. Paragraph 1 or 2
Exhaust recirculation control device for an automobile diesel engine as described in 2. (4) Registration of a utility model in which the closing direction of the exhaust recirculation valve is controlled via a vacuum control valve that throttles the exhaust recirculation valve by supplying negative pressure whose duty ratio is controlled to the exhaust recirculation valve. An exhaust gas recirculation control device for an automobile diesel engine according to claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14416785U JPS6254264U (en) | 1985-09-24 | 1985-09-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14416785U JPS6254264U (en) | 1985-09-24 | 1985-09-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6254264U true JPS6254264U (en) | 1987-04-03 |
Family
ID=31054525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14416785U Pending JPS6254264U (en) | 1985-09-24 | 1985-09-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6254264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10634074B2 (en) | 2014-02-20 | 2020-04-28 | Yanmar Co., Ltd. | EGR device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57191440A (en) * | 1981-05-19 | 1982-11-25 | Toyota Motor Corp | Exhaust gas recirculation control device for vehicular diesel engine |
| JPS6119663B2 (en) * | 1977-03-25 | 1986-05-19 | Dainippon Ink & Chemicals |
-
1985
- 1985-09-24 JP JP14416785U patent/JPS6254264U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6119663B2 (en) * | 1977-03-25 | 1986-05-19 | Dainippon Ink & Chemicals | |
| JPS57191440A (en) * | 1981-05-19 | 1982-11-25 | Toyota Motor Corp | Exhaust gas recirculation control device for vehicular diesel engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10634074B2 (en) | 2014-02-20 | 2020-04-28 | Yanmar Co., Ltd. | EGR device |
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