JPS62175235U - - Google Patents
Info
- Publication number
- JPS62175235U JPS62175235U JP6476186U JP6476186U JPS62175235U JP S62175235 U JPS62175235 U JP S62175235U JP 6476186 U JP6476186 U JP 6476186U JP 6476186 U JP6476186 U JP 6476186U JP S62175235 U JPS62175235 U JP S62175235U
- Authority
- JP
- Japan
- Prior art keywords
- turbine
- pressure
- boost pressure
- inlet
- waste gate
- 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
- 239000002699 waste material Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Supercharger (AREA)
Description
第１図および第２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の過給圧
制御装置全体の概略構成図、第２図はエンジン回
転数と軸トルクとの関係を示す特性図、第３図は
従来の過給機付きエンジンの過給圧制御装置全体
の概略構成図である。
２１…エンジン本体、２２…排気通路、２３…
給気通路、２５…タービン、２７…バイパス通路
、２８…ウエストゲートバルブ、３７…コントロ
ーラ、３８…第１の圧力センサ（ブースト圧検出
器）、３９…第２の圧力センサ（タービン入口圧
検出器）。
Figures 1 and 2 show an embodiment of this invention. Figure 1 is a schematic diagram of the entire boost pressure control system for a supercharged engine, and Figure 2 shows the engine speed and shaft torque. FIG. 3 is a schematic configuration diagram of the entire boost pressure control device for a conventional supercharged engine. 21...Engine body, 22...Exhaust passage, 23...
Air supply passage, 25... Turbine, 27... Bypass passage, 28... Waste gate valve, 37... Controller, 38... First pressure sensor (boost pressure detector), 39... Second pressure sensor (turbine inlet pressure detector) ).
Claims (1)
に対して並列に連結されたバイパス通路を設ける
とともに、前記エンジン本体の給気通路内のブー
スト圧を検出するブースト圧検出器および前記タ
ービンの入口部の圧力を検出するタービン入口圧
検出器をそれぞれ設け、前記バイパス通路を開閉
操作するウエストゲートバルブを前記ブースト圧
検出器および前記タービン入口圧検出器からの各
検出信号にもとづいて開閉制御し、前記給気通路
内のブースト圧をＰｂ、前記タービンの入口部の
圧力をＰｉｔとした場合にＰｂ＜Ｐｉｔの状態で
前記ウエストゲートバルブを開状態、Ｐｂ≧Ｐｉ
ｔの状態で前記ウエストゲートバルブを閉状態に
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の過給圧制御
装置。 A bypass passage connected in parallel to the turbine provided in the exhaust passage of the engine body is provided, and a boost pressure detector for detecting the boost pressure in the intake passage of the engine body and a boost pressure detector at the inlet of the turbine are provided. Turbine inlet pressure detectors for detecting pressure are provided, and a waste gate valve for opening and closing the bypass passage is controlled to open and close based on detection signals from the boost pressure detector and the turbine inlet pressure detector. When the boost pressure in the air passage is Pb and the pressure at the inlet of the turbine is Pit, the waste gate valve is opened in a state of Pb<Pit, and Pb≧Pi
A supercharging pressure control device for a supercharged engine, characterized in that a controller is provided for switching the waste gate valves to the closed state in the state t.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6476186U JPS62175235U (en) | 1986-04-28 | 1986-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6476186U JPS62175235U (en) | 1986-04-28 | 1986-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62175235U true JPS62175235U (en) | 1987-11-07 |
Family
ID=30901212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6476186U Pending JPS62175235U (en) | 1986-04-28 | 1986-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62175235U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58214620A (en) * | 1982-06-07 | 1983-12-13 | Yanmar Diesel Engine Co Ltd | Supercharge pressure controller for internal- combustion engine with supercharger |
| JPS5999025A (en) * | 1982-11-29 | 1984-06-07 | Hitachi Ltd | Supercharged internal-combustion engine |
-
1986
- 1986-04-28 JP JP6476186U patent/JPS62175235U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58214620A (en) * | 1982-06-07 | 1983-12-13 | Yanmar Diesel Engine Co Ltd | Supercharge pressure controller for internal- combustion engine with supercharger |
| JPS5999025A (en) * | 1982-11-29 | 1984-06-07 | Hitachi Ltd | Supercharged internal-combustion engine |
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