JPH0317145U - - Google Patents
Info
- Publication number
- JPH0317145U JPH0317145U JP7667289U JP7667289U JPH0317145U JP H0317145 U JPH0317145 U JP H0317145U JP 7667289 U JP7667289 U JP 7667289U JP 7667289 U JP7667289 U JP 7667289U JP H0317145 U JPH0317145 U JP H0317145U
- Authority
- JP
- Japan
- Prior art keywords
- passage
- bypass
- supercharger
- control
- intake passage
- 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
- 230000001133 acceleration Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Supercharger (AREA)
Description
第1図は本考案の一実施例を示す構成図、第2
図は本考案のバイパス制御装置によつて得られる
過給機下流の過給圧とエンジン・トルクを示す特
性図、第3図は従来例のバイパス制御装置の一つ
を示す構成図、第4図はそれによつて得られる過
給機下流の過給圧とエンジン・トルクを示す特性
図である。
1……エンジン、2……スロツトル・バルブ、
3……吸気通路、4……機械式過給機、5……バ
イパス通路、6……バイパス制御バルブ、7……
ブースト通路、8……制御バルブ、9……制御通
路、10……制御回路、11……エンジン加速検
知手段。
Fig. 1 is a configuration diagram showing one embodiment of the present invention;
The figure is a characteristic diagram showing the supercharging pressure and engine torque downstream of the supercharger obtained by the bypass control device of the present invention, FIG. 3 is a configuration diagram showing one of the conventional bypass control devices, and FIG. The figure is a characteristic diagram showing the boost pressure downstream of the supercharger and the engine torque obtained thereby. 1...Engine, 2...Throttle valve,
3...Intake passage, 4...Mechanical supercharger, 5...Bypass passage, 6...Bypass control valve, 7...
Boost passage, 8... control valve, 9... control passage, 10... control circuit, 11... engine acceleration detection means.
Claims (1)
機械式過給機と、該過給機とスロツトル・バルブ
との間の吸気通路と過給機より下流の吸気通路と
を連通するバイパス通路と、このバイパス通路に
配設されていて、該バイパス通路を選択的に開閉
するバイパス制御バルブと、上記過給機とスロツ
トル・バルブとの間の吸気通路と上記バイパス制
御バルブの負圧作動室とを連通するブースト通路
とを備えた機械式過給機付エンジンにおいて、 上記過給機より下流の吸気通路と上記バイパス
制御バルブの負圧作動室とを連通する制御通路と
、この制御通路を開閉する制御バルブと、エンジ
ンが加速状態にあるか否かを判断するエンジン加
速検知手段と、このエンジン加速検知手段がエン
ジン加速状態を検知したとき、上記制御バルブを
作動させて上記制御通路を解放し、上記過給機下
流の吸気通路圧力を上記負圧作動室に供給して上
記バイパス通路を閉じる制御信号を出力する制御
回路とを備えたことを特徴とするバイパス制御装
置。[Claim for Utility Model Registration] A mechanical supercharger installed downstream of a throttle valve in an intake passage, an intake passage between the turbocharger and the throttle valve, and an intake passage downstream of the supercharger. a bypass passage communicating with the bypass passage, a bypass control valve disposed in the bypass passage and selectively opening and closing the bypass passage, an intake passage between the supercharger and the throttle valve, and the bypass control valve. In an engine with a mechanical supercharger, the control passage communicates between an intake passage downstream of the supercharger and the negative pressure working chamber of the bypass control valve; , a control valve for opening and closing the control passage; an engine acceleration detection means for determining whether the engine is in an acceleration state; and when the engine acceleration detection means detects the engine acceleration state, the control valve is actuated. and a control circuit that outputs a control signal that opens the control passage, supplies intake passage pressure downstream of the supercharger to the negative pressure working chamber, and closes the bypass passage. .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7667289U JPH0317145U (en) | 1989-06-29 | 1989-06-29 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7667289U JPH0317145U (en) | 1989-06-29 | 1989-06-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0317145U true JPH0317145U (en) | 1991-02-20 |
Family
ID=31618352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7667289U Pending JPH0317145U (en) | 1989-06-29 | 1989-06-29 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0317145U (en) |
-
1989
- 1989-06-29 JP JP7667289U patent/JPH0317145U/ja active Pending
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