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9LM20-GS-50Hz

Auxiliary Engine (Generator Set) · Auxiliary Engines

Class-certified type (DNV register) · technical data sheet not yet verified
1,620 kWPower
9Cylinders
200 mmBore
300 mmStroke

The MaK 9LM20‑GS‑50Hz is a 9‑cylinder, 4‑stroke dual‑fuel auxiliary engine delivering up to 1 620 kW (≈1 540 kW electrical) in a compact L‑configuration, capable of running on diesel/HFO/MDO or LNG with low emissions in gas mode.

Specifications

Technical data.reference — unverified

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Displacement per cylinder101.3 liters
Power per cylinder900 kW/cylinder at 500-514 rpm
Bmep21.3/20.7 bar
Fuel consumption (diesel mode)186 g/kWh
Fuel injection systemCommon-Rail-Ignition fuel oil system with cylinder selective gas injection
Turbocharged charge air cooledYes
Four-stroke non-reversibleYes
IMO complianceIMO Tier II in diesel mode; IMO III in gas mode
Methane slip (gas mode)Minimal (stated as feature; specific values not publicly disclosed)
Power (kW)1620
Speed (rpm)750
Fuel TypeHFO/MDO
ConfigurationL
Genset Output (kW)1539
Genset Output (kVA)1924
Frequency (Hz)50
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