OceanSphereENGINES

9LW46TS-DF

Main Engine 4-Stroke · Main Engines (4-Stroke)

Class-certified type (DNV register) · technical data sheet not yet verified​‌⁠‍​‌​⁠⁠‌⁠⁠​‍‍‍⁠​‌‍
6,030 kWPower
9Cylinders
460 mmBore
580 mmStroke

The Wärtsilä 9LW46TS-DF is a medium‑speed, 9‑cylinder dual‑fuel (LNG/HFO) main engine delivering 6 030 kW at 600 rpm, noted for its high thermal efficiency and Tier III emissions compliance without after‑treatment.

Specifications

Technical data.reference — unverified

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Thermischer Wirkungsgrad (BTE)46TS-DF: bis 52% (Gasmode); 46TS-SG: 51,3% (Spark-Ignited)
Leistungsdichte1.300 kW pro Zylinder, ohne Größenerhöhung zu Vorgänger
TurboladerZweistufiges Turboladersystem mit hochelektronischer Common-Rail-Einspritzung
AbgasemissionenIMO Tier III konform (Gasmode ohne Abgasnachbehandlung); Methanschlupf 20% unter Marktbenchmark; Niedrigste CO₂-Emissionen im Segment
Hochfahrzeit2 Minuten (46TS-SG, keine Min/Max-Betriebzeitanforderungen)
Temperaturbereich-55°C bis +55°C Vollastbereich
Motorgewicht (46TS-SG)359-381 Tonnen (je nach Zylinderkonfiguration)
Dimensions-Länge (46TS-SG)18.902-19.952 mm
Dimensions-Höhe (46TS-SG)5.891 mm
Dimensions-Tiefe (46TS-SG)6.688 mm
Power (kW)6030
Speed (rpm)600
Fuel TypeLNG/HFO (Dual-Fuel)
ConfigurationL
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