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Bergen B36:45L propulsion

Choose Bergen Engines for cost-effective operation

The Bergen B-series is based on a modular design, which gives a flexible platform and at the same time carries forward the Bergen traditional values as a robust and reliable engine.

09.Engines 2p B36 45L Genset 12.02.jpg

The selection of technology was done after consulting a broad range of operators, designers and shipbuilders, to establish the qualities they prize in an engine. This engine series was first introduced to the market in 2014 as a diesel engine, and the gas version followed in 2018. It is available in several in-line or Vee cylinder variants for both diesel and gas, and is equally suitable for mechanical transmission or as a marine generating set.

Main benefits for ship yards:

  • Easy installation
  • Aligned piping at pump-end for easy connection
  • New resilient mounting (no need of welding brackets)

Main benefits for ship owners:

  • IMO Tier III compliant without SCR
  • Single fuel = single bunkering
  • No lubricating oil separator needed
  • Fast load response
  • Cleaner engine room and no smoke emission
  • Extremely low methane slip at all engine loads
  • Cylinder Pressure Monitoring (CPM) for improved load control, and possibility for diagnostics per cylinder
  • Exceptionally low emissions of NOx, CO2, SOx and particulate
  • No “switch over” problems - ref ECA or port regulations
  • Long-term compliance with local port regulations and potential benefits from taxation/green port dues
  • VVT – Variable Valve Timing for optimum response and load increase
  • Gas safe (double wall piping)
  • Possible conversion from gas to diesel and vice versa
  • Wastegate turbocharger to ensure optimised fuel/air ratio at varying ambient conditions for lean-burn operation


ENGINE TYPE B36:45L6P B36:45L8P B36:45L9P
Number of cylinders 6 8 9
Engine speed r/min 750 750 750
Mean piston speed m/s 11.2 11.2 11.2
Max.cont rating (MCR) kW 3600 4800 5400
Mean effective pressure (BMEP) bar 21 21 21
Specific energy consumption kJ/kWh 7420 7420 7420
Specific lubricating oil consumption g/kWh 0.4 0.4 0.4
Cooling water temp. engine outlet oC 90 90 90

The performance data is based on: Marine gas engine ratings are according to ISO 3046-1, at maximum 45°C ambient air temperature and maximum 32°C sea water temperature. Specific fuel gas consumption given at 100% load and no engine driven pumps, running on natural gas with Methane number above 70 and net calorific value of 36 MJ/nm3.To include 3 engine driven pumps, add 1.3% for each pump. Gas feed temperature is 20-40°C. Minimum gas feed pressure to Gas Regulating Unit to be 5,5 barg.
Waste heat recovery: Necessary data for arranging waste heat recovery plants (exhaust gas and cooling water) are available upon request.
Note: Due to continuous development, some data may be changed without notice.

B36:45L6P 4600 5630 3890 2380 1354 2138 1350 42400 kg
B36:45L8A 5640 6800 4160 2665 1354 2138 1350 53500 kg
B36:45L9A 6160 73200 4170 2665 1370 2138 1360 56400 kg

*Weight dry engine excludes transport foundation.

Services and support

  • 24/7 Technical support

    Our 24/7 technical support team is there to help at any time, day or night, wherever your vessel is.


    We understand the importance of having the right parts, available in the right place, at the right time.

  • Training

    Ensure that your crew is properly and thoroughly trained. This will reduce operational risk, downtime and maximise return on asset investment.

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Kongsberg Maritime

is the exclusive distributor of Bergen Engines medium speed engines for commercial marine applications

Kongsberg Maritime P.O.Box 483, NO-3601 Kongsberg, Norway