FRICTION POWER LOSS OF MINERAL AND SYNTHETIC LUBRICANTS IN A RUNNING ENGINE

The performance of single grade and multigrade oils and synthetic oils, has been evaluated in terms of friction power loss using an engine running on the test bed according to a modified Morse procedure. The results obtained show a good correlation between the engine performance and the rheological properties of the lubricants. The very low friction power loss experienced when using lubricants containing polymer can be explained by introducing the concept of anisotropic effective viscosity. Based on the good correlation between the measured and calculated friction generated in main bearings, a method has been devised for evaluating the temporary viscosity losses of multigrade oils by measuring the engine friction power loss and bearing temperatures.

  • Corporate Authors:

    Laboratorio Nacional de Engenharia Civil

    Avendia do Brazil
    Lisbon 5,   Portugal 

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Badiali, F L
    • Cassiani Ingoni, A A
    • Pusateri, G
  • Publication Date: 1978

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00188335
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: Special Pub 429
  • Files: TRIS
  • Created Date: Feb 27 1979 12:00AM