SYMPOSIA PAPER Published: 01 January 1978
STP46079S

Friction Power Loss of Mineral and Synthetic Lubricants in a Running Engine

Source

The performance of single grade and multigrade oils and synthetic oils, has been eva luated 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 Theological proper ties of the lubricants. The very low friction power loss experiern ced 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 en gine friction power loss and bearing temperatures.

Author Information

Badiali, F., L.
Snamprogetti — Petroleum Products Labs, Milan, Italy
Cassiani Ingoni, A., A.
Snamprogetti — Petroleum Products Labs, Milan, Italy
Pusateri, G.
Agip, Rome, Italy
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Details
Developed by Committee: D02
Pages: 85–95
DOI: 10.1520/STP46079S
ISBN-EB: 978-0-8031-6761-2
ISBN-13: 978-0-8031-6697-4