Use of a Couette High-Shear-Rate Viscometer for Measuring the Viscosity of Engine Lubricants 790212
A Couette viscometer is described which is capable of measuring the viscosity of engine lubricants at a temperature of 150°C and shear rates from 105 to 106 s-1. A novel feature of the instrument is the introduction of an electrical capacitance method for measuring the size of the annular gap. Operating procedures are discussed in detail and mathematical corrections are established for dealing with temperature rise in the test sample. Viscometric data for some single-grade oils and multigrade oils are presented.
Citation: Wright, B. and Mather, J., "Use of a Couette High-Shear-Rate Viscometer for Measuring the Viscosity of Engine Lubricants," SAE Technical Paper 790212, 1979, https://doi.org/10.4271/790212. Download Citation
Author(s):
B. Wright, J. Mather
Affiliated:
Shell Research Ltd., Thornton Research Centre (Chester/England)
Pages: 16
Event:
1979 Automotive Engineering Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Lubricant viscosity
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