Direct measurement of piston friction of internal-combustion engines using the floating-liner principle
Michael Gore
Michael Theaker
S.J. Howell-Smith
Homer Rahnejat
Paul King
2134/17751
https://repository.lboro.ac.uk/articles/journal_contribution/Direct_measurement_of_piston_friction_of_internal-combustion_engines_using_the_floating-liner_principle/9559970
Piston–cylinder interactions account for a significant portion of frictional losses in an internal-combustion engine. This is
mainly as the result of significant changes in the operating conditions (the load, the speed and the temperature) as well
as the contact geometry and the encountered topography during a typical engine cycle. These changes alter the regime
of lubrication which underlies the mechanisms of friction generation. The multi-variate interactive nature of the problem
requires quite complex analyses which do not fully replicate the actual in-situ conditions. Therefore, there is a need for
direct measurement of cyclic friction under controlled conditions. The paper describes the use of a novel floating-liner
arrangement which is capable of direct measurement of friction, its transitory mechanisms, as well as determination of
the regime of lubrication.
2015-06-08 13:48:40
Internal-combustion engine
Friction
Piston-cylinder system
Floating liner
Mechanical Engineering not elsewhere classified
Mechanical Engineering