Shaft bearing wear detector

Details Shaft bearing wear detector Shaft bearing wear detector

1992-09-02

1993-07-06

Bertsch, Richard A.

Pumps

Condition responsive control of pump drive motor

Having timer or delay means

417 32, 417 44, 417 53, 417 63, 417420, 73660, 340683, F04D 4900

Patent

active

052248356

ABSTRACT:
An apparatus and method for detecting shaft misalignment wherein a sensor is employed to detect contactings between a non-concentrically rotating component and a surface and to generate an electrical signal corresponding thereto, and wherein a signal processing circuit coupled to the sensor is configured to determine whether the signal received from the sensor is characteristic of a signal that is expected whenever a rotating component contacts the surface, and if so, whether the number of signals received exceeds the minimum number expected within a predetermined time interval on the occasion of contact between a rotating component and the surface.

REFERENCES:
patent: 4257747 (1981-03-01), Goldman
patent: 4631683 (1986-12-01), Thomas et al.
patent: 4748850 (1988-06-01), Kataoka
patent: 4988979 (1991-01-01), Sasaki et al.
patent: 4998863 (1991-03-01), Klaus

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