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, Volume 73, Issue 5, pp 40–43 | Cite as

Piston Ring Coating Reduces Gasoline Engine Friction

  • Marcus Kennedy
  • Steffen Hoppe
  • Johannes Esser
Development Friction
  • 138 Downloads

Federal-Mogul has developed a coating system for piston rings under the name of Carboglide which decreases wear in highly charged gasoline engines and further reduces friction losses which occur between the ring pack and the cylinder running surface. The tailored composition of the specific layer structure of the carbon-based Carboglide coating in combination with corresponding modified piston ring designs yields a potential to improve fuel efficiency by up to 1.5 %.

REQUIREMENTS

Manufacturers of internal combustion engines continually face the challenge to reduce fuel consumption and emissions by improving engine efficiency. In particular this necessitates a substantial reduction of mechanical frictional losses. The components of the power cylinder and crankshaft drive are at the center of these development efforts. The piston ring pack has a significant potential for bringing down friction losses due to its fairly high (24 %) share of mechanical frictional losses, . At the same...

References

  1. [1]
    VDI-Richtlinie 2840 Kohlenstoffschichten, Grundlagen, Schichttypen, EigenschaftenGoogle Scholar
  2. [2]
    Hoppe, S.; Münchow, F.; Esser, J.: DLC — Hochleistungsbeschichtung für Kolbenringe, Potenzial und Einsatzerfahrungen. VDI-Fachtagung Zylinderlaufbahnen, Kolben, Pleuel, Baden-Baden, June 2008Google Scholar
  3. [3]
    Esser, J.; Hoppe, S.; Mittler, R.: Kolbenringauslegung für Ottomotoren im Spannungsfeld von Reibungsreduzierung und Funktionsverhalten. VDI-Fachtagung Zylinderlaufbahnen, Kolben, Pleuel, Baden-Baden, June 2010Google Scholar
  4. [4]
    Esser, J.; Münchow, F.: Ölabstreifringe mit konischem Steg. MTZ 65 (2004), no. 9Google Scholar

Copyright information

© Springer Fachmedien Wiesbaden 2012

Authors and Affiliations

  • Marcus Kennedy
    • 1
  • Steffen Hoppe
    • 1
  • Johannes Esser
    • 1
  1. 1.Federal-MogulBurscheidGermany

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