JPH0319461U - - Google Patents
Info
- Publication number
- JPH0319461U JPH0319461U JP7973789U JP7973789U JPH0319461U JP H0319461 U JPH0319461 U JP H0319461U JP 7973789 U JP7973789 U JP 7973789U JP 7973789 U JP7973789 U JP 7973789U JP H0319461 U JPH0319461 U JP H0319461U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust recirculation
- control valve
- recirculation control
- exhaust
- intake throttle
- 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
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
第１図は本考案のクレーム対応図、第２図は本
考案の実施例を示す概略構成図、第３図は制御動
作のフローチヤート、第４図は排気還流の制御領
域を示す特性図、第５図は従来例の制御動作のフ
ローチヤート、第６図は同じく制御特性図である
。
１……エンジン、２……吸気通路、３……排気
通路、４……排気還流通路、５……排気還流制御
弁、６……吸気絞弁、９……コントローラ。
Fig. 1 is a diagram corresponding to claims of the present invention, Fig. 2 is a schematic configuration diagram showing an embodiment of the present invention, Fig. 3 is a flowchart of control operation, Fig. 4 is a characteristic diagram showing the control region of exhaust gas recirculation, FIG. 5 is a flowchart of a conventional control operation, and FIG. 6 is a control characteristic diagram. DESCRIPTION OF SYMBOLS 1...Engine, 2...Intake passage, 3...Exhaust passage, 4...Exhaust recirculation passage, 5...Exhaust recirculation control valve, 6...Intake throttle valve, 9...Controller.
Claims (1)
介装した排気還流制御弁と、排気還流を行う領域
をエンジン回転数と負荷に応じて設定した手段と
、エンジン回転数信号と負荷信号とに基づいて上
記設定領域で排気還流を行うように前記吸気絞弁
または排気還流制御弁の開閉を切替える駆動手段
とを備えたデイーゼルエンジンの排気還流制御装
置において、運転条件が前記設定領域へまたはこ
の領域から移行したときに前記吸気絞弁または排
気還流制御弁の切替えを所定の時間だけ遅延させ
る遅延手段を設けたことを特徴とするデイーゼル
エンジンの排気還流制御装置。 An intake throttle valve installed in the intake passage, an exhaust recirculation control valve installed in the exhaust recirculation passage, means for setting an area for exhaust recirculation according to the engine rotation speed and load, and an engine rotation speed signal and a load signal. and a drive means for switching the opening and closing of the intake throttle valve or the exhaust recirculation control valve so as to perform exhaust recirculation in the set range based on the operating conditions, 1. An exhaust recirculation control device for a diesel engine, comprising a delay means for delaying switching of the intake throttle valve or the exhaust recirculation control valve by a predetermined time when the exhaust gas recirculation control valve shifts from the region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7973789U JPH0319461U (en) | 1989-07-06 | 1989-07-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7973789U JPH0319461U (en) | 1989-07-06 | 1989-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0319461U true JPH0319461U (en) | 1991-02-26 |
Family
ID=31624167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7973789U Pending JPH0319461U (en) | 1989-07-06 | 1989-07-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0319461U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS589938B2 (en) * | 1977-04-27 | 1983-02-23 | コニカ株式会社 | Photosensitive silver halide multilayer color photographic material |
-
1989
- 1989-07-06 JP JP7973789U patent/JPH0319461U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS589938B2 (en) * | 1977-04-27 | 1983-02-23 | コニカ株式会社 | Photosensitive silver halide multilayer color photographic material |
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