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Wärtsilä
Wärtsilä W46DF
The Wärtsilä W46DF is a high‑speed, four‑stroke marine diesel engine family offering dual‑fuel (LNG/HFO/MGO) operation with up to 1 200 kW per cylinder at 600 rpm, delivering flexible power from ~7 MW to >19 MW for main propulsion.
Engine Specifications
460 mm
Bore
580 mm
Stroke
Components & Design
Component data being added…
Technical Data
Hubraum pro Zylinder
96,4 Liter
Leistung pro Zylinder (46F)
1200 kW @ 600 rpm
SFOC (Specific Fuel Oil Consumption)
170-173 g/kWh ISO
Ventile
2 inlet valves, 2 exhaust valves per cylinder
Kraftstoffeinspritzung
Direkte Einspritzung (Twin-Pump)
Aufladung
Turbolader mit Ladeluftkühlung
Betriebsstunden Feldhistorie
7,200,000+ hours since 2004
Gewicht 6L46
95 Tonnen
Gewicht 12V46F
177 Tonnen
Gewicht 16V46
214 Tonnen
rpm
600
configuration
L
fuel type
LNG/HFO/MGO
technology
Dual-Fuel Common Rail (LNG/HFO/MGO)
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Common failures & inspection points
Failing exhaust valves due to corrosion on valve stem, caused by inferior fuel quality. A documented case: all four valves fractured
Turbocharger damage from debris from valve failures. Secondary damage from exhaust valve leakage that introduces cooling water into cylinder (identifiable
Cylinder liner wear and scoring: inspections required every 4–8 weeks, regular measurement of ring coating thickness and groove tightness. Early detec
Piston crown wear: measurement of piston crown and shaft height necessary to determine replacement. Inspection required if piston falls below scavenge port
Engine bearing monitoring: continuous temperature monitoring of lubricant and crankshaft bearings necessary. Three-section engine design enables p
Type-general inspection and maintenance points for this equipment category — not model-specific.
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Maritime Network →Manuals
- datasheet
- project_guide
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Equipment Model #66627
· ✓ still in production