Drive mechanism. 1.9 TDI PD from VAG Group. Family of diesel engines with injection pump-injector

AvtoAd

10/05/2022
Drive mechanism. 1.9 TDI PD from VAG Group. Family of diesel engines with injection pump-injector

Drive mechanism

 

The camshaft has four additional chambers to control the injector pump. This activates the pistons with a roller-type rocker arm.

 

 

The injection cam has a steep leading edge and a gradual tilt to the trailing edge. As a result of the steep leading edge, the pump piston is pushed down at high speed. High fuel pressure is achieved quickly.

 

 

The gradual tilt of the rear edge of the cam allows the pump piston to move up slowly and evenly. The fuel enters the high pressure chamber of the injector pump without air bubbles.

 

 

Read more about the family of diesel engines with injection pump-injector here .