Method and apparatus for monitoring oil degradation

Details Method and apparatus for monitoring oil degradation Method and apparatus for monitoring oil degradation

1975-11-04

1977-02-15

Queisser, Richard C.

Measuring and testing

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

Lubricant testing

73 64, 235 92MT, G01N 3330

Patent

active

040076296

ABSTRACT:
A method and apparatus for monitoring the degradation of oil, particularly crankcase oil. A first sensor includes creep material positioned under constant stress in thermal contact with the oil to act as an analogue computer as it changes its length in response to temperature and the time at that temperature to register the degradation of oil due to the oil's oxidation. In addition, a second sensor registers the contamination of the oil by adding the number of times the oil is heated but not heated to a high enough predetermined temperature to disperse the water, acids and sludge which contaminate the oil. When the combination of these outputs reach a predetermined limit, a signal is provided.

REFERENCES:
patent: 2814201 (1957-11-01), Cotton
patent: 3275808 (1966-09-01), Knudsen

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