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Fav 900
Engine / Injection Pump
EDC - Description
A
General
Fav 900 23/3001 and up.
10/2000
2710
000001
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a
1/6
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EDC - Description
Text-module
Injection System Fav 900 VP 44 ( Fav. 900 / 23 / ....)
Text-module
Common Injection systems on agricultural tractors
Text-module
Linear Injection Pump
One pump element per cylinder wich consists of pump cylinder and piston.
The engine drives a pump integrated cam shaft wich moves the pistons of the pump. A spring pushes
the piston back ..
The piston course is invariable
Slanting control profile within the pistons allows variable Displacement wich is controlled by a control
Rod. The desired displacement will be obtained by adjusting the control rod.
Text-module
Common Rail System :
Generation of fuel pressure and the injection itself are controlled separately.
Injection pressure is generated independantly of engine speed and injection volume. The pressure is
permanently available for injection within the "Rail"(storage).
The injection volume and time are determined by the electronic control module. Injection occurs via
arespective solenoid valve for each cylinder (Injection unit). The solenoid valve is controlled by the
injection control module..
Text-module
Injection System Fav. 900 / 23 /....... ( Facelift )
Radial piston pump
Die Radial piston pump with integrated spray adjustment are controlled electronically .
A single High- pressure pump module for all cylinders.
A Vane type pump lifts the fuel.
A Radial piston pump with a cam ring and 3 radial pistons generates the jhigh pressure.
A High pressure solenoid valve allows a defined injection volume.
Injection start and Spray adjustment will be controlled by the rotation of the cam ring
Two electronic control modules (Pump and Engine control module ) are processing various control
parameters.
Linear Injection Pump
Pressure approx. 1300 bar
Radial Injection pump
Pressure approx. 1700 bar
Pump- Injector system
Pressure approx. 2100 bar
Common - Rail
Pressure approx. 1400 bar