Wärtsilä
12VW31SG
Wärtsilä 31 (W31) — Viertakt-Marinediesel, Bohrung 310 x Hub 430 mm, 720, 750 rpm, 4880–9760 kW (8V31–16V31 @ 750 rpm); 4700–9400 kW @ 720 rpm. Brennstoff: Diesel (HFO, MDO, LFO), Dual-Fuel LNG/Diesel (W31DF), Natural Gas (W31SG). Status: In production (2024–present). First introduced 2015. Over 1,000 MW installed globally and >1 million running hours logged.. Verifiziert, Datenblatt verlinkt.
3600.0 kW
Power
Engine Specifications
12
Cylinders
310 mm
Bore
430 mm
Stroke
4-stroke
Stroke Type
🔧 Komponenten & Aufbau
Component data being added…
📊 Technische Daten
power kw
3600
rpm
750
fuel type
LNG (Spark-Ignited)
configuration
V
confidence
0.85
needs verification
False
catalog added at
2026-05-22T23:48:32
verified specs
{'Cylinder power': '610 kW/cyl (diesel)', 'Mean effective pressure (BMEP)': '30 bar', 'SFOC (diesel)': '167.7 g/kWh (optimal point)', 'Weight (8V31)': '~57.1 tonnes (dry, diesel)', 'Weight (16V31)': '~89–92.5 tonnes (dry, diesel)', 'Piston speed': '10.75 m/s', 'Turbocharging': 'Two-stage turbocharging with intercooling', 'Fuel injection': 'Common rail direct injection', 'Valve layout': '2 inlet, 2 exhaust valves per cylinder'}
bore mm v
310
stroke mm v
430
rpm v
720, 750
fuel v
Diesel (HFO, MDO, LFO), Dual-Fuel LNG/Diesel (W31DF), Natural Gas (W31SG)
status v
In production (2024–present). First introduced 2015. Over 1,000 MW installed globally and >1 million running hours logged.
datasheet url
https://www.wartsila.com/docs/default-source/product-files/engines/ms-engine/product-guide-w31.pdf (W31 diesel) + https://www.wartsila.com/docs/default-source/product-files/engines/df-engine/product-guide-w31df.pdf (W31DF)
sources
['https://www.wartsila.com/marine/products/engines-and-generating-sets/dual-fuel-engines/wartsila-31', 'https://www.wartsila.com/insights/article/wartsila-31-the-most-efficient-engine-in-the-world', 'https://www.maritimeinformed.com/w-rtsil-8v31-prime-mover-technical-details.html', 'https://www.maritimeinformed.com/w-rtsil-16v31-prime-mover-technical-details.html', 'https://www.manualslib.com/manual/1228139/Wartsila-31.html', 'https://www.cimac.com/cms/upload/events/cascades/CASCADES_2017_Finland/1_Jesper_Engstrom_Wartsila_The_most_efficient-4-stroke-engine-in-the-world-Wrtsil_31.pdf']
⚠️ Typische Ausfälle
- ● _hinweis
- ● items
📦 Verschleißteile
Spare parts data being added…
Equipment-Model #124312
· ✓ still in production