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Wärtsilä

Wärtsilä 31

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.

Wärtsilä Wärtsilä 31
Per Hersteller-Datenblatt
Capacity
MDO/HFO/LNG depending variant
Medium

Engine Specifications

8L-16V
Cylinders
310 mm
Bore
4-stroke
Stroke Type

🔧 Komponenten & Aufbau

Component data being added…

📊 Technische Daten

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
rpm 720/750
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)

⚠️ Typische Ausfälle

  • ● _hinweis
  • ● items

🔍 Service & Wartung

Follow OEM condition-based maintenance. Typical medium-speed 4-stroke inspections include valve gear, injectors and turbocharger checks at running-hour intervals defined by Wärtsilä service schedule.

🛒 Bezugsquellen & Ersatzteile

Direkte Links zu Hersteller, Datenblatt, Ersatzteil-Portal und Händler — damit du als Inspektor Teile sofort findest.

🔒 Premium-Funktion freischalten

📦 Verschleißteile

Spare parts data being added…

Keep injector sets, exhaust valves, valve rotators, filter sets, charge air cooler gaskets and turbocharger service kit onboard for trading vessels.

📚 Manuals

Equipment-Model #36797 · ✓ still in production