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, Volume 78, Issue 7–8, pp 50–55 | Cite as

Variable Compression for Large Engine

  • Udo Schlemmer-KellingEmail author
  • Stefano Ghetti
  • Peter Methfessel
  • Christopher Marten

In order to meet future requirements in the marine sector, different technologies are needed. The most important technologies like two-stage charging, variable valve train, Miller timing and waste heat recovery are explained in the technical literature [1]. The variable compression ratio is explained as follows in more detail.

Improving the Efficiency of Dual-fuel Engines

Global trade continues to rise steadily and continuously reaches new peak levels. This trend can be attributed in particular to container handling, which has increased by 20 % over the past six years [2]. In the maritime sector, the regulations of the International Maritime Organization (IMO), which address the reduction of air pollutants from shipping as well as energy-efficiency of vessels, are driving the development of future propulsion systems. One pillar of these regulations was the introduction of so-called Emission Control Areas (ECA) in major coastal areas [3]. The use of dual-fuel engines, capable of diesel...



The authors wish to thank Dipl.-Ing. Holger Schever, Dr.-Ing. Jose Geiger, Stefan Wedowski and Lukas Virnich for their support in creating this article.

Copyright information

© Springer Fachmedien Wiesbaden 2017

Authors and Affiliations

  • Udo Schlemmer-Kelling
    • 1
    Email author
  • Stefano Ghetti
    • 2
  • Peter Methfessel
    • 3
  • Christopher Marten
    • 4
  1. 1.Springer Fachmedien Wiesbaden GmbHWiesbadenGermany
  2. 2.Springer Fachmedien Wiesbaden GmbHWiesbadenGermany
  3. 3.Springer Fachmedien Wiesbaden GmbHWiesbadenGermany
  4. 4.Springer Fachmedien Wiesbaden GmbHWiesbadenGermany

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