TRIBOLOGICAL PERFORMANCE OF PISTON RING IN MARINE DIESEL ENGINE

Tajammal Imran, Peder Klit, Christian Felter, Anders Vølund

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

Abstract

From a tribology point of view, it is the two dead centers that are the main area of interest for experimental study of piston rings in large marine diesel engines. Therefore, in this work the performance of piston rings is studied to mark the importance of the two dead centers. A test rig based on a reciprocating principle was developed. Tribological parameters such as friction force, thickness of oil film and temperature variation of the piston ring bulk were studied as a function of crankshaft rotational speed, loading of the piston ring and two different types of lubricating oils. Dead loading was applied for each experiment. Selected results are presented for friction force, oil film thickness and temperature variation of the piston ring bulk as a function of crankshaft instantaneous position. Results are also compared for two different oils used in this study. Obtained results showed that the two dead centers have significant influence on the performance of piston rings under lubricated conditions. It can be concluded that at the dead centers the piston rings will experience a transition from dry friction to hydrodynamic friction with corresponding variation in rotational speed.
Original languageEnglish
Publication date2009
Publication statusPublished - 2009
EventASME/STLE International Joint Tribology Conference - Memphis, Tennessee, USA
Duration: 1 Jan 2009 → …

Conference

ConferenceASME/STLE International Joint Tribology Conference
CityMemphis, Tennessee, USA
Period01/01/2009 → …

Keywords

  • ring
  • tribology
  • piston

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