Portable oil change analyzer

Details Portable oil change analyzer Portable oil change analyzer

1993-09-30

1995-01-03

Williams, Hezron E.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Lubricant testing

73 5402, 3404574, 340631, G08B 2100

Patent

active

053775317

ABSTRACT:
A small sample of combustion engine lubrication oil is analyzed, simultaneously, for its viscosity and contamination level in a compact, self-contained, computer-controlled unit. If the combination of viscosity and contamination level falls outside of the acceptable range, which is determined by comparison to a digitally stored matrix of the various states of used motor oil, a warning is displayed recommending that the oil be changed.

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patent: 5194910 (1993-03-01), Kirkpatrick, Jr. et al.
Wazer et al., "Viscosity and Fl;ow Measurement", Interscience Publishers, New York pp. 268, 269, 325, 326, 1963.

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