A Test Procedure for Evaluating Temporary-Shear Loss of Engine Lubricants Rohm and Haas Company

Format:

Conference/Event

Author/Creator:

Stambaugh, R. L., author.

Conference Name:

1975 Automotive Engineering Congress and Exposition (1975-02-24 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1975

Summary:

Temporary shear loss characteristics of multigraded engine oils were measured in a newly developed engine oil pump rig. Correlations of the results with high pressure capillary viscometry data indicate that the test apparatus generates shear rates in the range of 2-3 105 s-1. One advantage of this technique over similar mechanical approaches is that the test rig causes virtually no permanent shear degradation. Test results are reported for a variety of polymer types, and the relationship of permanent and temporary shear losses is discussed

Notes:

Vendor supplied data

Publisher Number:

750379

Access Restriction:

Restricted for use by site license