5.2.5 Starting valve
The starting valve in each cylinder cover supplies pressurized air into the combustion chamber in
the two situations that follow:
•
To start the engine before combustion starts
•
To decrease the engine speed when combustion has stopped.
The ECS and the cylinder control modules (CCM-20) control and monitor the starting valves. Each
starting valve opens and closes at the correct crank angle of the related cylinder. This makes the
piston move down (for engine start) or makes the piston speed decrease (for engine speed
decrease).
As soon as combustion starts the starting air supply stops.
Fig 5-9 Starting valve (example)
001
002
003
004
005
006
007
008
009
Legend
001 Solenoid valve 006 Valve spindle
002 Cover 007 Cylinder cover
003 Piston 008 Starting air outlet
004 Housing 009 Starting air inlet
005 Compression spring
X72-B
AA00-2728-00AAA-043A-A
Operation Manual Starting valve
Winterthur Gas & Diesel Ltd.
- 156 - Issue 003 2021-12
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