Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1997-11-03
1999-03-02
Ramirez, Nestor
Electrical generator or motor structure
Dynamoelectric
Rotary
310 86, 310 87, 310 58, 416723R, 416131, 416132R, 416140, 416107, H02K 5132, F01D 902
Patent
active
058775668
ABSTRACT:
A submersible magnetic motor having improved rotary blades comprising a magnetic motor body, a magnetic rotor and a rotary impeller wherein the rotary impeller comprises a rotary hub provided with a plurality of blades which are uniformly distributed and extend outwardly around the periphery of the hub. The rotary hub is provided with an axial hole centrally formed therethrough for positioning an end of a central shaft of the magnetic rotor. The present invention is characterized in that the blades are each provided at the outer end edge with two stoppers and a fin freely pivoted therebetween, so as to be adjacent to the inner surface of the wall of the receiving chamber of the submersible motor. When the magnetic rotor is actuated to rotate, the fins each pivots to contact one of the two stoppers due to the resistance of the water such that the submersible motor can be maintained at a constant rotation speed, and the water pumping efficacy can be substantially improved.
REFERENCES:
patent: 3442493 (1969-05-01), Smith, Jr.
patent: 4022545 (1977-05-01), Shank
patent: 4832573 (1989-05-01), Dorski
patent: 5238367 (1993-08-01), Ellis et al.
Ramirez Nestor
Tamai Karl Eizo I.
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