WÄRTSILÄ Vasa R22, Instruction Manual

Page: 197 / 297

assembled. Always tighten the connections to correct torque.
If necessary, the engine can be provided with alarm for a broken
injection pipe. In that case the injection pipes are enclosed in a
pipe, from which a drain pipe goes to a collecting vessel for the
leak fuel lines. The vessel is provided with a level switch, which
gives alarm at the set level. To prevent the normal leak fuel flow
from triggering the alarm the vessel is fitted with a valve. This
valve should be adjusted so that the normal leak fuel continuously
flows through it. The switch gives alarm only when the flow is
abnormal (a broken injection pipe).
When removed, the injection line details have to be protected
against dirt and rust.
16.5 Injection valve
16.5.1 General description
The injection valve is centrally located in the cylinder head and
includes nozzle holder and nozzle. The fuel enters the nozzle
holder sideways through a connection piece screwed into the
nozzle holder.
Injection valves
2
1
9
6 5
3
10
1. Nut
2. Cap nut
3. Nut
4. Nut
5. Connection piece
8. Spring
8
9. Screw
10. Nut
4
6. Screw
Fig 16-2
2216539213
16 Injection System 22-9601
16-8 L’Orange