Bearing wear detection devices

Details Bearing wear detection devices Bearing wear detection devices

1975-03-27

1976-09-21

Freeh, William L.

Pumps

Condition responsive control of pump drive motor

By control of electric or magnetic drive motor

116124A, 116DIG21, 308 1A, 415 10, 415118, 417423R, F04B 4906

Patent

active

039816214

ABSTRACT:
A sealed pump having a rotor and a stator and including an electromagnetic system comprising magnet means and a coil mounted on the rotor and stator and arranged such that a voltage is induced in the coil when the rotor rotates eccentrically, with the said voltage depending on the eccentricity.

REFERENCES:
patent: 2941120 (1960-06-01), Harman et al.
patent: 2960938 (1960-11-01), Williams
patent: 2985010 (1961-05-01), Piltz
patent: 3486479 (1969-12-01), Hartmann
patent: 3565495 (1971-02-01), Lyman

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