JPS61132446U - - Google Patents
Info
- Publication number
- JPS61132446U JPS61132446U JP1418585U JP1418585U JPS61132446U JP S61132446 U JPS61132446 U JP S61132446U JP 1418585 U JP1418585 U JP 1418585U JP 1418585 U JP1418585 U JP 1418585U JP S61132446 U JPS61132446 U JP S61132446U
- Authority
- JP
- Japan
- Prior art keywords
- turbocharger
- stopper mechanism
- nozzle vane
- nozzle
- engine rotation
- 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 3
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例に係るターボチヤー
ジヤの過給圧制御装置の系統図、第２図は本考案
のリーク機構の拡大断面図、第３図のイ，ロ，ハ
，ニは本考案の場合、可変ノズル付ターボチヤー
ジヤの場合、ウエストゲートバルブ付ターボチヤ
ージヤの場合を併せ示した、エンジンの回転数と
、エンジン軸トルク、過給圧力、タービン入口圧
力、ターボチヤージヤ有効効率との関係の特性図
、である。
２……ターボンホイール、３……第１のストツ
パ、４……ノズルベーン、７……リング、８……
アクチユエータ（可変ノズル駆動用）、９……ス
プリング、１０……ダイヤフラム、１１……圧力
室、１４……アクチユエータ（ウエストゲートバ
ルブ駆動用）、１５……圧力室、１６……スプリ
ング、１７……ダイヤフラム、１９……ウエスト
ゲートバルブ、２７……絞り、３０……リークラ
イン、３１……孔。
Fig. 1 is a system diagram of a boost pressure control device for a turbocharger according to an embodiment of the present invention, Fig. 2 is an enlarged sectional view of the leak mechanism of the present invention, and Fig. Characteristic diagram of the relationship between engine rotation speed, engine shaft torque, boost pressure, turbine inlet pressure, and turbocharger effective efficiency, showing the case of the invention, the case of a turbocharger with a variable nozzle, and the case of a turbocharger with a wastegate valve. , is. 2... Turbo wheel, 3... First stopper, 4... Nozzle vane, 7... Ring, 8...
Actuator (for driving variable nozzle), 9... Spring, 10... Diaphragm, 11... Pressure chamber, 14... Actuator (for driving waste gate valve), 15... Pressure chamber, 16... Spring, 17... Diaphragm, 19... waste gate valve, 27... aperture, 30... leak line, 31... hole.
Claims (1)
ズル付ターボチヤージヤに、排気ガスの一部をタ
ービンを通らないようにバイパスするウエストゲ
ートバルブを並設し、可変ノズル開閉機構に、タ
ービン効率が急激に低下するノズルベーン開度以
上にノズルベーンが開くことを規制するストツパ
機構を設け、該ストツパ機構に、該ストツパ機構
が作動するエンジン回転域以上の高回転域で前記
ウエストゲートバルブへの印加圧をリークさせる
リーク機構を接続したことを特徴とするターボチ
ヤージヤの過給圧制御装置。 A turbocharger with a variable nozzle that opens the nozzle vane as boost pressure increases is installed in parallel with a wastegate valve that bypasses a portion of the exhaust gas so that it does not pass through the turbine, and the variable nozzle opening/closing mechanism rapidly reduces turbine efficiency. A stopper mechanism is provided that restricts the nozzle vane from opening beyond the nozzle vane opening degree, and leakage occurs in the stopper mechanism that causes pressure applied to the waste gate valve to leak in a high engine rotation range that is higher than the engine rotation range in which the stopper mechanism operates. A supercharging pressure control device for a turbocharger, characterized in that a mechanism is connected to the turbocharger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1418585U JPS61132446U (en) | 1985-02-05 | 1985-02-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1418585U JPS61132446U (en) | 1985-02-05 | 1985-02-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61132446U true JPS61132446U (en) | 1986-08-19 |
Family
ID=30498881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1418585U Pending JPS61132446U (en) | 1985-02-05 | 1985-02-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61132446U (en) |
-
1985
- 1985-02-05 JP JP1418585U patent/JPS61132446U/ja active Pending
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