OceanSphereENGINES

9LW64

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

Class-certified type (DNV register) · technical data sheet not yet verified​‌⁠‍​‌‌‌⁠‍‌​⁠‍​⁠​​‌‍
16,380 kWPower
9Cylinders
640 mmBore
900 mmStroke

The Wärtsilä 9LW64 is a 9‑cylinder, low‑speed (medium‑speed) four‑stroke diesel engine delivering up to 16 380 kW at ~333 rpm, designed for direct‑drive gear propulsion with high specific power and fuel flexibility (HFO/MDO).

Specifications

Technical data.reference — unverified

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Zylinderbohrung640 mm
Kolbenhub L-Reihe900 mm
Kolbenhub V-Reihe770 mm
Max. Zylinderdruck160-170 bar
Spezifische Zylinderleistung2,000-2,150 kW/Zylinder
Ventile pro Zylinder4 (2 Ein-, 2 Auslassventile)
Fuel systemTwin-Plunger Injektionspumpe mit Direkteinspritzung
AufladungTurbolader mit Ladeluftkühler
Besonderheit L-SerieOptimiert für Getriebepropulsion (900 mm Hub)
Besonderheit V-SerieOptimiert für Dieselektrik (770 mm Hub)
Power (kW)16380
Speed (rpm)333
Fuel TypeHFO/MDO
ConfigurationL
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