Pumps – Motor driven – Motor within rotary pumping member
Patent
1996-03-06
1997-07-22
Gluck, Richard E.
Pumps
Motor driven
Motor within rotary pumping member
4174237, F04D 2904
Patent
active
056498110
ABSTRACT:
A combination motor and pump assembly comprising a housing, a shaft rotaty mounted in the housing, and an impeller fixed to the shaft in the housing, said impeller comprising alternately magnetically polarized portions. The assembly further comprises stator means fixed in the housing adjacent the impeller, the stator means comprising an array of pole pieces and windings associated therewith for receiving electrical alternating current. Fluid inlet means and outlet means are provided in the housing in communication with the impeller. The impeller reacts to current received by the stator means as a motor rotor and rotates in response to excitation of the pole pieces by the current. The rotation of the rotor serves to move fluid in the housing from the inlet to the outlet means.
REFERENCES:
patent: 2947467 (1960-08-01), Palmer
patent: 3171356 (1965-03-01), Pensabene
patent: 3194165 (1965-07-01), Sorlin
patent: 4806080 (1989-02-01), Mizobuchi et al.
patent: 4836147 (1989-06-01), Morris
Bedingfield Ralph A.
Cho Chahee P.
Krol, Jr. William P.
Uhlman, Jr. James S.
Gluck Richard E.
Lall Prithvi C.
McGowan Michael J.
Oglo Michael F.
The United States of America as represented by the Secretary of
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