Fig 6-2
Internal fuel system, V-engine (DAAR030664)
System components
Flywheel
07
Fuel & timing rack
04
Injection pump
01
Camshaft
08
Pulse damper
05
Injection valve
02
Pressure regulating valve
09
Fuel oil leakage collector
06
Switching valve
03
Sensors and indicators
Engine speed 1 (safety)
ST173
Fuel oil pressure, engine inlet
PT101A/B
Engine speed 2 (safety)
ST174
Fuel oil temperature, engine inlet
TE101A/B
Timing rack actuator
CV178
Fuel oil temperature, engine inlet (local)
TI101A/B
Timing rack position
GT178
Fuel oil temperature, engine outlet
TE102A/B
Engine speed for torsional vibration
ST191
Fuel oil (clean) leakage - DE
LS103A/B
Engine speed, prime
ST196P
Fuel oil (clean) leakage - FE
LS106A/B
Drive unit for CV161
U161
Fuel oil (dirty) leakage - FE
LS107A/B
Engine speed, back-up
ST196S
Fuel oil (dirty) leakage - DE
LS108A/B
Turning gear engaged
GS792
Fuel rack actuator
CV161
Electric motor for turning gear
M755
Fuel rack position
GT165-2
Drive unit for CV178
U178
Stop lever in stop position
GS171
Size
Pipe connections
DN32
Fuel inlet
101A/B
DN32
Fuel outlet
102A/B
DN25
Leak fuel drain, clean fuel
103A/B
DN25
Leak fuel drain, dirty fuel
104A/B
The engine is designed for continuous operation on heavy fuel oil (HFO). On request the engine
can be built for operation exclusively on marine diesel fuel (MDF). It is however possible to
operate HFO engines on MDF intermittently without any alternations. Continuous operation
on HFO is recommended as far as possible.
If the operation of the engine is changed from HFO to continuous operation on MDF, then a
change of exhaust valves from Nimonic to Stellite is recommended.
DAAB605814
6-9
6. Fuel Oil System
Wärtsilä 46F Product Guide
Summary of Contents for 46F Series
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