1Switch assignment, installation point.................................................................................................. 20-1

Pos. Component

A Fuel tank B Low pressure line between fuel tank A and fuel filter C C Fuel filter D Low pressure line between fuel filter C and high pressure pump E E High-pressure pump F High pressure line between high pressure pump E and common rail I G High pressure line between common rail I and injectors H H Injectors I Common Rail

Function description of fuel supply

The fuel is conveyed from the tank A, within a low pressure range of max. 0.2bar, via the fuel filter C to the high pressure pump E. From the high pressure pump E the fuel is conveyed at a pressure of 2000 bar via the common rail I and the injectors H to the combustion chamber of the diesel engine.

Overview of fuel reflux

D

C E

H

B F

G

I

A

Colour Description

Reflux (0.2bar)