MaK (Caterpillar)
20VVM43
MaK M46DF Dual-Fuel (460mm bore) — Viertakt-Marinediesel, Bohrung 460 x Hub 610 mm, 500-514 rpm, 5,400 kW (6M46DF) to 18,000 kW (20VM46DF). Brennstoff: Diesel, Marine Diesel Oil (MDO), Heavy Fuel Oil (HFO), Liquefied Natural Gas (LNG). Status: In Production / Active Service (First installation 2013). Verifiziert, Datenblatt verlinkt.
18000.0 kW
Power
Engine Specifications
20
Cylinders
430 mm
Bore
610 mm
Stroke
4-stroke
Stroke Type
🔧 Komponenten & Aufbau
Component data being added…
📊 Technische Daten
power kw
18000
rpm
500
fuel type
HFO/MDO
configuration
V
confidence
0.85
needs verification
False
catalog added at
2026-05-22T23:48:32
verified specs
{'Displacement per cylinder': '101.3 liters', 'Power per cylinder': '900 kW/cylinder at 500-514 rpm', 'BMEP': '21.3/20.7 bar', 'Fuel consumption (diesel mode)': '186 g/kWh', 'Fuel injection system': 'Common-Rail-Ignition fuel oil system with cylinder selective gas injection', 'Turbocharged charge air cooled': 'Yes', 'Four-stroke non-reversible': 'Yes', 'IMO compliance': 'IMO Tier II in diesel mode; IMO III in gas mode', 'Methane slip (gas mode)': 'Minimal (stated as feature; specific values not publicly disclosed)'}
bore mm v
460
stroke mm v
610
rpm v
500-514
fuel v
Diesel, Marine Diesel Oil (MDO), Heavy Fuel Oil (HFO), Liquefied Natural Gas (LNG)
status v
In Production / Active Service (First installation 2013)
datasheet url
https://www.teknoxgroup.com/fileadmin/user_upload/M_46_DF.pdf
sources
['https://www.industrialmarinepower.com/products/mak-m-46-df-propulsion/36/', 'https://gcaptain.com/caterpillar-mak-dual-fuel-marine-engine/', 'https://shipshub.com/article/323-2.html', 'https://www.offshore-energy.biz/caterpillars-first-mak-dual-fuel-engine-for-cruise-liner/', 'https://www.motorship.com/mak-dual-fuel-engine-launched/408733.article', 'https://www.greencarcongress.com/2011/11/cat-20111128.html']
⚠️ Typische Ausfälle
- ● _hinweis
- ● items
📦 Verschleißteile
Spare parts data being added…
Equipment-Model #123648
· ✓ still in production