Category Archives for Actuators

Bosch-Common Rail System – Intake manifold flap servo motor

An intake manifold flap is located in the air intake system which has the following functions: • Restricting the intake air for exhaust gas recirculation, • Closing the intake system when the engine is stopped, • Closing the air path … Continue reading

10. August 2018 by sam
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Bosch-Common Rail System – EGR valve

The EGR valve is fitted on the exhaust side of the engine on the cylinder head. The EGR valve comprises the following components: • Servo motor, • Position sensor, • the EGR valve itself. 1 PCM 2 DC motor 3 … Continue reading

09. August 2018 by sam
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Bosch-Common Rail System – Boost pressure control solenoid valve

Function The boost pressure control solenoid valve is supplied with vacuum by the vacuum pump. Pulse width modulated signals from the PCM control this vacuum via the boost pressure control solenoid valve. The controlled vacuum acts upon the vacuum unit … Continue reading

09. August 2018 by sam
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Bosch-Common Rail System – Fuel injector solenoid valve

1 Solenoid armature 2 Wiring harness connector connection 3 Solenoid valve needle The fuel injectors are each fitted with one solenoid valve. Actuation for fuel metering is carried out by the PCM. The electrical supply of the solenoid valves occurs … Continue reading

08. August 2018 by sam
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Bosch-Common Rail System – Fuel metering valve (CP1H)

NOTE: When de-energized, the fuel metering valve is completely closed. Additional functions as well as strategies are essentially the same as those of the fuel metering valve of CP3.2

08. August 2018 by sam
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Bosch-Common Rail System – Fuel metering valve (CP3.2)

The fuel metering valve regulates the fuel quantity which is fed to the high-pressure chambers of the high-pressure pump depending on the fuel pressure in the fuel rail. As a result, the quantity of fuel that flows back to the … Continue reading

08. August 2018 by sam
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