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Rolls-Royce / Bergen

8LC25:33L

Bergen B33:45 — Marinediesel, Bohrung 330 x Hub 450 mm, 750 (Propulsion MCR), 720/750 (Genset 50/60 Hz) rpm, 3600-5400 kW (L-series), 7200 kW (V12 MCR). Brennstoff: Diesel (MDO/HFO per ISO 8217, up to 700 cSt @ 50°C). Status: Production current (2014+ introduction, 2023+ iteration). Verifiziert, Datenblatt verlinkt.

2320.0 kW
Power

Engine Specifications

8
Cylinders
250 mm
Bore
330 mm
Stroke
4-stroke
Stroke Type

Components & Design

Component data being added…

Technical Data

BMEP 25 bar @ 750 rpm (Propulsion), 26 bar @ 720 rpm (Genset)
SFOC (100% MCR) 171-177 g/kWh (MDO basis, varies by cylinders)
SFOC (85% MCR) 173-175 g/kWh
Lube Oil Consumption 0.5 g/kWh
Mean Piston Speed 11.2 m/s (@ 750 rpm), 10.8 m/s (@ 720 rpm)
Dry Weight L6P 42,400 kg
Dry Weight L8P 53,500 kg
Dry Weight L9P 56,400 kg
Dry Weight V12P 71,867 kg
Genset Weight L6A 48,300 kg (engine only)
Genset Weight L8A 60,600 kg (engine only)
Genset Weight L9A 62,400 kg (engine only)
Engine Type 4-stroke, turbocharged with 2-stage charge air cooler
Service Intervals Extended up to 25,000 hours
IMO Compliance Tier II (standard), Tier III (with SCR)
Electrical Output L6 50Hz 3,515 kW genset
Electrical Output L8 50Hz 4,690 kW genset
Electrical Output L9 50Hz 5,285 kW genset
Electrical Output V12 60Hz 6,750 kW genset
Electrical Output V12 50Hz 7,050 kW genset
power kw 2320
rpm 900
fuel type MDO
configuration L

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Common failures & inspection points

Piston rod scoring risk due to heavy scavenge space dirt accumulation
Cylinder liner wear and ovality development requiring periodic measurement via micrometer in port-starboard and forward-aft positions
Turbocharger oil starvation and contamination (>90% of turbo failures) - requires monitoring lube oil quality and pressure
Water or fuel in scavenge space (leak detection through piston inspection at BDC) - indicates potential head gasket or fuel valve seat leakage
Fuel injection system wear requiring maintenance - Bergen standard practice includes complete cylinder head overhaul kits available with 3-piece conrod design

Type-general inspection and maintenance points for this equipment category — not model-specific.

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Equipment Model #123605 · ✓ still in production