1. Main Data and Outputs
The Wärtsilä 46DF is a 4-stroke, non-reversible, turbocharged and inter-cooled dual fuel engine
with direct injection of liquid fuel and indirect injection of gas fuel. The engine can be operated
in gas mode or in diesel mode.
460 mmCylinder bore
580 mmStroke
96.4 l/cylPiston displacement
2 inlet valves and 2 exhaust valvesNumber of valves
6, 7, 8 and 9 in-line; 12, 14 and 16 in V-
form
Cylinder configuration
clockwise, counter-clockwise on requestDirection of rotation
600 rpmSpeed
11.6 m/sMean piston speed
1.1 Maximum continuous output
Table 1-1 Maximum continuous output
IMO Tier 2Cylinder configuration
bhpkW
93406870W 6L46DF
109008015W 7L46DF
124509160W 8L46DF
1401010305W 9L46DF
1868013740W 12V46DF
2179016030W 14V46DF
2491018320W 16V46DF
The mean effective pressure P
e
can be calculated using the following formula:
where:
mean effective pressure [bar]P
e
=
output per cylinder [kW]P =
engine speed [r/min]n =
cylinder diameter [mm]D =
length of piston stroke [mm]L =
operating cycle (4)c =
DBAD209883 1-1
1. Main Data and OutputsWärtsilä 46DF Product Guide
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