JPH02122127U

JPH02122127U -

Info

Publication number: JPH02122127U
Application number: JP2917389U
Authority: JP
Priority date: 1989-03-16
Filing date: 1989-03-16
Publication date: 1990-10-05

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示し、過給機付内
燃エンジンのバイパスバルブ制御機構の構成を示
すブロツク図、第２図はスーパーチヤージヤの電
磁クラツチのオン・オフ各領域を示すグラフ、第
３図乃至第５図はエンジンの各気筒の空燃比のバ
ラツキを示すグラフである。１０……インジエクタ、１２……吸気管、１５
……スロツトル弁、１６……スーパーチヤージヤ
（過給機）、２０……電子コントロールユニツト
（ＥＣＵ）、２２……バイパス通路、２３……バ
イパスバルブ、２４……アクチユエータ、２４ｅ
……負圧室、２６，３３……ソレノイド弁、３０
……スロツトル開度センサ、３１……エンジン回
転数センサ、３２……エンジン冷却水温度センサ
。 Fig. 1 shows an embodiment of the present invention, and is a block diagram showing the configuration of a bypass valve control mechanism for a supercharged internal combustion engine, and Fig. 2 is a graph showing the on/off regions of the electromagnetic clutch of a supercharger. , and FIGS. 3 to 5 are graphs showing variations in the air-fuel ratio of each cylinder of the engine. 10...Injector, 12...Intake pipe, 15
... Throttle valve, 16 ... Supercharger (supercharger), 20 ... Electronic control unit (ECU), 22 ... Bypass passage, 23 ... Bypass valve, 24 ... Actuator, 24e
... Negative pressure chamber, 26, 33 ... Solenoid valve, 30
...Throttle opening sensor, 31...Engine rotation speed sensor, 32...Engine coolant temperature sensor.

Claims

[Scope of utility model registration request]

A supercharger with an electromagnetic clutch is disposed in an intake passage downstream of a throttle valve of an internal combustion engine, a bypass passage that bypasses the supercharger is connected to the intake passage, and a bypass valve is disposed in the middle of the bypass passage. A bypass valve control mechanism for a supercharged internal combustion engine that opens and closes a bypass valve according to engine operating conditions includes a fuel supply device disposed in an intake passage upstream of the throttle valve; 1. A bypass valve control mechanism for a supercharged internal combustion engine, comprising: control means for closing a valve.