Device for measuring the effective viscosity of a lubricant

Details Device for measuring the effective viscosity of a lubricant Device for measuring the effective viscosity of a lubricant

1986-10-21

1989-12-26

Levy, Stewart J.

Measuring and testing

Frictional resistance, coefficient or characteristics

Lubricant testing

G01N 1900, G01N 3330

Patent

active

048889768

ABSTRACT:
A device for measuring the effective viscosity of a lubricant in which a motor rotates one element of a bearing with respect to the other, the lubricant being supplied to the bearing. The bearing is part of a sensor that outputs a signal corresponding to the percentage of contact time between the elements of the bearing. A speed regulator for the motor is responsive to the output of the sensor to maintain the speed of relative movement so that no roughness contacts occur in the bearing, at which time the motor speed is a measure of viscosity.

REFERENCES:
patent: 2033588 (1936-03-01), Pigott et al.
patent: 4253326 (1981-03-01), Munnich et al.
patent: 4267722 (1981-05-01), Hendry
patent: 4458544 (1984-07-01), Gyer et al.

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