Bergen 35:40 Gas generator set

Low emissions with high electrical and heat recovery efficiency

The Bergen B35:40 delivers low exhaust emissions, the highest possible electrical and heat recovery efficiency and outstanding reliability. It sets new standards in power and efficiency in the 720-750rpm class with exceptionally low emissions of NOx, CO2 and particulates, and is a high technology, low risk design that builds on the latest Bergen B diesel hardware.

Twin turbochargers with variable turbine geometry (VTG) deliver precise airflow and the solid-state ignition with individual cylinder timing and diagnostics ensures optimum efficiency. A large swept volume and optimised combustion technology delivers the high cylinder output.

Classed for power generation and mechanical propulsion applications, V12, V16 and V20 cylinder versions are available with powers from 5250kW - 8750kW

To meet power requirements between 2,300kW and 3,600kW gas variants of the Bergen B32:40 in-line engines have been developed and are now available.


  • Compact and powerfull
  • Exceptionally low emissions of NOx, CO2, SOx and particulates
  • Low energy consumption
  • Optimum response to all engine loads (Variable Turbo Geometry)
  • Super silent resilient mounting
  • Stable frequency


The Bergen engines are supported worldwide by the Rolls-Royce global service network, and a range of tailored maintenance packages are available, including service exchange modules. Our goal is to keep your vessel profitable and your investment protected.

Typical applications

  • Offshore supply/service vessels
  • Exploration rigs
  • Ferries
  • Naval auxiliaries
  • Auxiliary power

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