Magnet pump with rear thrust bearing member

Details Magnet pump with rear thrust bearing member Magnet pump with rear thrust bearing member

1994-06-22

1995-11-07

Bertsch, Richard A.

Pumps

Motor driven

Electric or magnetic motor

41742312, F04B 1700

Patent

active

054643333

ABSTRACT:
A rear thrust bearing member is disposed to be in frictional contact with an axial end face of a spindle supported in a cantilever fashion in the neighborhood of and on the rear side of an impeller. Frictional heat that is generated in this part is satisfactorily diffused with a cooling effect provided by the rotation of the impeller in the pump casing and a heat diffusion effect provided by the circulating effect. Thus, a temperature rise of the frictional portions is suppressed, and adverse effects of heat on the surrounding member are prevented.

REFERENCES:
patent: 3354833 (1967-11-01), Laing
patent: 3411450 (1968-11-01), Clifton
patent: 3877844 (1975-04-01), Klaus
patent: 4013384 (1977-03-01), Oikawa
patent: 4036565 (1977-07-01), Becker
patent: 4736989 (1988-03-01), Laing
patent: 4822256 (1989-04-01), Laing
patent: 4834628 (1989-05-01), Laing
patent: 4874300 (1989-10-01), Laing et al.
patent: 5160246 (1992-11-01), Horiuchi
patent: 5253986 (1993-10-01), Bond et al.
patent: 5302091 (1994-04-01), Horiuchi
Patent Abstracts of Japan, Kazuyoshi, vol. 6, No. 201 (M-163) 13 Oct. 1982, JP-A-57 108 492 (Hitachi Ltd.) 6 Jul. 1982.

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