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9L M34DF

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

Technical data from manufacturer or class sources · not yet verified by a person​‌​​​⁠⁠‍‌⁠⁠​⁠‌‍​‍‌⁠‌
4,590 kWPower
9Cylinders
340 mmBore
460 mmStroke

The Caterpillar MaK 9L M34DF is a 9‑cylinder, medium‑speed (720 rpm) dual‑fuel marine main engine delivering ~4.5 MW per cylinder, capable of running on LNG, HFO or MGO with real‑time combustion monitoring.

Specifications

Technical data.reference — unverified

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Power per Zylinder500 kW/Zyl @ 720–750 rpm (Diesel + Gas-Modus)
Brennstoffverbrauch188 g/kWh
FußabdruckIdentisch mit M32C
Feuchtluft-schlupfMinimal (Technologie für Reduktion implementiert)
VerbrennungsüberwachungReal-time combustion monitoring mit Zylinderdruck-Feedback
Flexibles Nockenschaft-SystemFlexible Camshaft Technology (FCT) für variable Ventilöffnungszeiten
KlassifizierungDNV, Lloyd's Register zertifiziert
Emissionen (Diesel)IMO II / EPA Tier 2 Konformität
ConfigurationL
Speed (rpm)720
Fuel TypeLNG/HFO/MGO
TechnologyDual-Fuel Common Rail (LNG/HFO/MGO)
Displacement l per cyl41.8
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