MTZ industrial

, Volume 7, Issue 2, pp 26–33 | Cite as

Common Rail Technology for Low-speed Engines

  • Klaus M. Heim
  • Marco Coppo
Cover Story Diesel Engines

The medium-speed common rail injection system presented by OMT in 2013 has been expanded to include an additional product line covering two-stroke low-speed engines of various bore sizes. Both injector ranges feature integral pressure accumulators designed to enable both greater parameter setting flexibility and increased injection pressures for further improving the combustion process.

Product Objectives

Generally lower than in their medium-speed counterparts [1, 2], peak injection pressures for low-speed engines typically range from 600 to 1000 bar. In order to explore a wider range of possibilities for controlling the combustion process, OMT has developed an injection system designed to operate at a maximum rail pressure of 1250 bar.

A key requirement of the new common rail system is the possibility of operating in a multi-shot mode, especially to be able to produce up to five controlled injections per engine cycle. The architecture and operation mode of low-speed engines also posed...


  1. [1]
    Coppo, M.; Heim, K.; Cocito, C.: New Developments and Service Experience with OMT’s Latest Generation Common Rail Injector. CIMAC Paper No. 184, 2016Google Scholar
  2. [2]
    Heim, K.; Coppo, M.: Advanced Common Rail Injection for Medium Speed Engines. In: MTZindustrial, Special Edition MTZ, October 2013Google Scholar
  3. [3]
    Hoeg, H.: A Nozzle for a Fuel Valve in a Diesel Engine, and a Method of Manufacturing a Nozzle. European Patent EP1556608, 2002Google Scholar
  4. [4]
    Coppo, M.; Negri, C.: Electrically Controlled Fuel Injector For Large Diesel Engines. European Patent EP2503138, 2011Google Scholar

Copyright information

© Springer Fachmedien Wiesbaden GmbH 2017

Authors and Affiliations

  • Klaus M. Heim
    • 1
  • Marco Coppo
    • 1
  1. 1.OMT S.p.A.TurinItaly

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