MTZ industrial

, Volume 6, Issue 1, pp 14–21 | Cite as

GE’s J920 FleXtra Gas Engine for 60 Hz Applications

  • Andreas Birgel
  • Stefan Köberl
  • Christian Trapp
  • Andreas Wimmer
Cover Story High Efficiency

GE Power has developed a new version of its J920 gas engine, aimed especially at distributed power generation in areas using 60 Hz alternating current. The new 60 Hz version features high electrical efficiency. In addition significant improvements at low emissions were achieved and are seen as possible precursors to engines which will not require exhaust aftertreatment.


Distributed (decentralised) power supply is becoming more and more popular and modern gas engines play a key role in this area by providing high power output at high electrical efficiencies and with low pollutant emissions.

Using advanced technology concepts like two-stage turbocharging with advanced Miller valve timing, a rapid-burn pre-chamber combustion with high air-fuel ratio, cylinder-individual fuel gas admission and in-cylinder pressure-based engine control, GE’s J920 FleXtra gas engine offers one of the highest electrical efficiencies in its class, making it well suited to distributed (decentralised)...


Selective Catalytic Reduction Engine Version Brake Mean Effective Pressure Main Combustion Chamber High Electrical Efficiency 
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Copyright information

© Springer Fachmedien Wiesbaden 2016

Authors and Affiliations

  • Andreas Birgel
    • 1
  • Stefan Köberl
    • 1
  • Christian Trapp
    • 1
  • Andreas Wimmer
    • 2
  1. 1.GE Power’s Distributed Power BusinessJenbachAustria
  2. 2.Graz University of TechnologyGrazAustria

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