Rotor with stabilizing magnets

Details Rotor with stabilizing magnets Rotor with stabilizing magnets

1988-05-24

1989-11-14

Croyle, Carlton R.

Pumps

Motor driven

Axial thrust balancing means for rotary pump and motor

417420, 41742312, 4174237, F04B 1702

Patent

active

048803626

ABSTRACT:
A rotor of an electric motor with a spherical magnetic gap or an impeller which forms a pivotably mounted rotating unit with an armature consists of a permanent magnetic annular member which is arranged juxtaposedly to a second stationary permanent magnetic annular member. The two magnets are spaced apart from each other by an air-gap and remain apart from each other because of their polarity. This prevents tumbling and counteracts the hydraulic thrust to prevent liftoff of the rotating unit from the step bearing.

REFERENCES:
patent: 3107310 (1963-10-01), Carriere et al.
patent: 4043706 (1977-08-01), Walker
patent: 4057369 (1977-11-01), Isenberg et al.
patent: 4523896 (1985-06-01), Llenry et al.
patent: 4609332 (1986-09-01), Miki et al.
patent: 4615662 (1986-10-01), Laing
patent: 4717315 (1988-01-01), Miki et al.

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