JPS62200143U - - Google Patents
Info
- Publication number
- JPS62200143U JPS62200143U JP8847986U JP8847986U JPS62200143U JP S62200143 U JPS62200143 U JP S62200143U JP 8847986 U JP8847986 U JP 8847986U JP 8847986 U JP8847986 U JP 8847986U JP S62200143 U JPS62200143 U JP S62200143U
- Authority
- JP
- Japan
- Prior art keywords
- main body
- exhaust circulation
- engine
- valve
- engine main
- 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.)
- Granted
Links
- 239000000498 cooling water Substances 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Supercharger (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
第１図乃至第３図はこの考案の一実施例を示す
もので、第１図は過給機付きエンジン全体の概略
構成図、第２図はエンジン本体の低温始動時にお
けるエンジン本体の冷却水温とウエストゲートバ
ルブの弁開度との関係を示す特性図、第３図はエ
ンジン本体の低温始動時におけるエンジン本体の
冷却水温と排気循環制御バルブの弁開度との関係
を示す特性図、第４図は従来の過給機付きエンジ
ン全体の概略構成図である。
１１……エンジン本体、１２……排気通路、１
３……給気通路、１４……過給機、１５……ター
ビン、１６……コンプレツサ、１７……バイパス
通路、１８……ウエストゲートバルブ、１９……
コントローラ、２２……温度検出器、２４……排
気循環路、２５……排気循環制御バルブ。
Figures 1 to 3 show an embodiment of this invention. Figure 1 is a schematic diagram of the entire engine with a supercharger, and Figure 2 is the temperature of the cooling water in the engine when the engine is started at a low temperature. Figure 3 is a characteristic diagram showing the relationship between the temperature of the cooling water in the engine body and the valve opening of the exhaust circulation control valve when the engine is started at a low temperature. FIG. 4 is a schematic diagram of the entire conventional supercharged engine. 11...Engine body, 12...Exhaust passage, 1
3... Air supply passage, 14... Supercharger, 15... Turbine, 16... Compressor, 17... Bypass passage, 18... Waste gate valve, 19...
Controller, 22...Temperature detector, 24...Exhaust circulation path, 25...Exhaust circulation control valve.
Claims (1)
タービンに対して並列に連結されたバイパス通路
を設け、このバイパス通路を開閉操作する過給圧
調整用のウエストゲートバルブを備えた過給機付
きエンジンにおいて、一端を前記バイパス通路に
おけるウエストゲートバルブの下流側に連結させ
、他端を前記エンジン本体の吸気通路側に連結さ
せた排気循環路およびこの排気循環路を開閉操作
する排気循環制御バルブをそれぞれ設けるととも
に、前記エンジン本体の冷却水温にもとづいて前
記エンジン本体の運転状態を検出する運転状態検
出機能を備え、前記エンジン本体の低温始動時に
は前記ウエストゲートバルブおよび排気循環制御
バルブをそれぞれ開放状態で保持し、前記エンジ
ン本体の冷却水温の上昇に連動させて前記排気循
環制御バルブの弁開度を全開状態から全閉状態ま
で制御して前記エンジン本体の始動運転の終了時
点で前記ウエストゲートバルブを通常の開閉制御
状態、前記排気循環制御バルブを全閉状態にそれ
ぞれ切換え操作するコントローラを設けたことを
特徴とする過給機付きエンジン。 A supercharger equipped with a bypass passage connected in parallel to the turbocharger turbine installed in the exhaust passage of the engine body, and a wastegate valve for adjusting boost pressure that opens and closes this bypass passage. an exhaust circulation path having one end connected to the downstream side of the waste gate valve in the bypass passage and the other end connected to the intake passage side of the engine body; and an exhaust circulation control valve for opening and closing the exhaust circulation path. and an operating state detection function for detecting the operating state of the engine main body based on the cooling water temperature of the engine main body, and the waste gate valve and the exhaust circulation control valve are each in an open state when the engine main body is started at a low temperature. The valve opening degree of the exhaust circulation control valve is controlled from a fully open state to a fully closed state in conjunction with a rise in the cooling water temperature of the engine main body, and the waste gate valve is opened at the end of the starting operation of the engine main body. 1. A supercharged engine comprising a controller for switching the exhaust circulation control valve to a normal opening/closing control state and a fully closed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8847986U JPH0513965Y2 (en) | 1986-06-12 | 1986-06-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8847986U JPH0513965Y2 (en) | 1986-06-12 | 1986-06-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62200143U true JPS62200143U (en) | 1987-12-19 |
| JPH0513965Y2 JPH0513965Y2 (en) | 1993-04-14 |
Family
ID=30946615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8847986U Expired - Lifetime JPH0513965Y2 (en) | 1986-06-12 | 1986-06-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0513965Y2 (en) |
-
1986
- 1986-06-12 JP JP8847986U patent/JPH0513965Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0513965Y2 (en) | 1993-04-14 |
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