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MTZ industrial

, Volume 4, Issue 2, pp 12–19 | Cite as

New Generation Low Speed Two-stroke Engines

  • Marc Spahni
  • Andreas Kyrtatos
Cover Story Multi-Role Combustion Engines
  • 105 Downloads

With their best-in-class fuel consumption and excellent reliability, low speed two-stroke engines will remain the workhorses of world maritime trade for medium vessels to the very largest ships. In preparation for an era of ever bigger containerships, ever tighter emissions regulations and new sizes of vessel due to the enlargement of the Panama Canal, Wärtsilä has launched a new two-stroke engine Generation. This article is based on Paper 267, CIMAC Congress 2013.

Engine concept

As well as being designed to comply with present and future environmental legislation, the low speed, two-stroke engines in Wärtsilä’s new Generation X have been developed to meet ship owners’ requirements for lowest total cost of ownership (TCO), combined with highest reliability, maximised vessel payload via compact design, and the licensee engine builders’ need for rational, economic production.

The principal particulars of the new X-engines are listed in . Following the introduction of the Wärtsilä 82 cm...

Keywords

Cylinder Liner Brake Specific Fuel Consumption Bulk Carrier Main Bearing Brake Mean Effective Pressure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. [1]
    Antonopoulos, D.: The New W-X92 For Propulsion Of Modern Large And Ultra Large Container Vessels, July 2012Google Scholar
  2. [2]
    Frigge, P.; Affolter, S.; Bachmann, D.; De Jong, R.: New Two-Stroke Marine Diesel Engines From Wärtsilä. In: MTZ 72 (2011), No. 11., pp. 846Google Scholar
  3. [3]
    Karamitsos, A,; Spahni, M.: The New Wärtsilä X62 And X72 Engines, Wärtsilä Licensees Conference 2011, TriesteGoogle Scholar
  4. [4]
    Spahni, M.; Brunner, H; De Jong, R,: The New Wärtsilä 820 Mm-Bore Engine Series — Advanced Design And First Service Experience, CIMAC Congress, Bergen, 2010Google Scholar
  5. [5]
    Heim, K.; Frigge, P,: The Wärtsilä Low-Speed Engine Programme For Today’s And Future Requirements, CIMAC Congress, Bergen, 2010Google Scholar
  6. [6]
    Boletis, E.; Kyrtatos, A.; Yildirim, T.; Jia, Y,: A New Fuel Injection And Exhaust Valve Actuation System For A Two-Stroke Engine Family In The 30 to 50 Bore Segment, CIMAC Congress, Bergen, 2010Google Scholar
  7. [7]
    Spahni, M., Kyrtatos, A., De Jong Ronald. The New X Generation Low-Speed Engines From Wärtsilä, CIMAC Congress, Shanghai, 2013Google Scholar

Copyright information

© Springer Fachmedien Wiesbaden 2014

Authors and Affiliations

  • Marc Spahni
    • 1
  • Andreas Kyrtatos
    • 1
  1. 1.Wärtsilä Switzerland Ltd.WinterthurSwitzerland

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