CE ENGINE FUEL SYSTEM
3-4
©
200416
Description of components
2
ΧΦ65/75/85 series
4
3.3 INJECTOR
The injectors can be opened and closed
electrically. The injector is normally closed. The
load of the spring (2) and the fuel rail pressure
that controls chamber C ensure this.
The fuel is supplied from the fuel rail via A. The
return fuel can flow back to the fuel tank via B.
When the coil (7) is energised, the armature
housing (5) moves up. As a result the pressure in
chamber C drops slightly and the injector
needle (1) is forced up to chamber D by the rail
pressure. The fuel can then be injected.
7
C
E
A
B
F
D
6
5
4
3
2
1
I400548
https://www.truck-manuals.net/
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