Improving fuel efficiency with laser surface textured piston rings

I. Etsion, E. Sher

Research output: Contribution to journalArticlepeer-review

399 Scopus citations


An experimental study is presented to evaluate the effect of partially laser surface textured piston rings on the fuel consumption and exhaust gas composition of a compression-ignition IC engine. Dynamometer tests were performed with a Ford Transit naturally aspirated 2500 cm3 engine at a wide range of engine speeds under near-half-load conditions. A comparison was made between the performance of reference non-textured conventional barrel-shaped rings and optimum partial laser surface texturing (LST) cylindrical-shape rings. It was found that the partial LST piston rings exhibited up to 4% lower fuel consumption, while no traceable change in the exhaust gas composition or smoke level was observed.

Original languageEnglish
Pages (from-to)542-547
Number of pages6
JournalTribology International
Issue number4
StatePublished - 1 Apr 2009


  • Engine friction
  • Fuel efficiency
  • IC Engines
  • Laser surface texturing
  • Piston rings

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films


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