Slender motor for canned motor pump

Details Slender motor for canned motor pump Slender motor for canned motor pump

1994-11-30

1997-12-16

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 87, 310 54, 310 58, H02K 510, H02K 512, H02K 900

Patent

active

056989164

ABSTRACT:
A slender motor for a cannned motor pump in which a motor rotor is provided between a pair of bearings on a rotor shaft, and a motor stator is provided throuth a path for a cooling and lubrication liquid around the motor rotor, whereby a ratio of axial length to diameter of the motor rotor is so set as to permit the cooling and lubrication liquid passing through the path to provide a bearing effect on the rotor shaft.

REFERENCES:
patent: 3050645 (1962-08-01), Redding, Jr.
patent: 3671786 (1972-06-01), Jones
patent: 3754844 (1973-08-01), Nusser et al.
patent: 3771909 (1973-11-01), Rousseau et al.
patent: 4283645 (1981-08-01), Hofmann
patent: 4577128 (1986-03-01), Gould et al.
patent: 4684329 (1987-08-01), Hashimoto
patent: 4745316 (1988-05-01), Nakashima et al.
patent: 4990068 (1991-02-01), Zhong et al.
patent: 5078628 (1992-01-01), Garis, Jr.
patent: 5256038 (1993-10-01), Fairman

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