Magnetically driven centrifugal pump

Details Magnetically driven centrifugal pump Magnetically driven centrifugal pump

1993-01-28

1994-04-12

Bertsch, Richard A.

Pumps

Motor driven

Electric or magnetic motor

41742312, 415111, 415229, F04B 3504

Patent

active

053020910

ABSTRACT:
In a magnetically driven centrifugal pump so designed that a drive power of an electric motor is transmitted from a magnets-embedded drive rotor to a magnets-embedded follower rotor which is opposed to the drive rotor for the formation of a magnetic coupling and is associated with an impeller by a rotating shaft, the rotating shaft is supported with a radial bearing of ceramic material of non-rotation which is fitted into a supporting member fixed in a pump casing, wherein a cushioning member is mounted compressedly in an interspace between a front end of the thrust bearing and a circular edged projection of the supporting member which are opposed to one another.

REFERENCES:
patent: 3420184 (1969-01-01), Englesberg et al.
patent: 3713749 (1973-01-01), Fitch
patent: 3796507 (1974-03-01), Smykal et al.
patent: 3877844 (1975-04-01), Klaus et al.
patent: 4421456 (1983-12-01), Huffman
patent: 4834628 (1989-05-01), Laing
patent: 5059097 (1991-10-01), Okazaki et al.
patent: 5160246 (1992-11-01), Horiuchi
patent: 5195867 (1993-03-01), Stirling

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