Fig 4-8
Fuel system with ICU (generic and simplified)
57
Cyl. 1
Cyl. 2
Cyl. 3
Cyl. 4
Cyl. n
60 50 49
52
51
PLANT
ENGINE
59
67
ENGINE
PLANT
001
002
004
005
003
007
008
009
006
Legend
001
Pressure control valve
006
Injection valve
002
Relief valve
007
Supply unit
003
Injection control unit (ICU)
008
Fuel pump
004
Fuel rail
009
Pressure retaining valve
005
Rail unit
X72-B
AA00-0000-00AAA-043E-A
Operation Manual
Fuel system
Winterthur Gas & Diesel Ltd.
- 95 -
Issue 003 2021-12