Efficient motor with dual cylindrical magnets and rotor arm...

Details Efficient motor with dual cylindrical magnets and rotor arm... Efficient motor with dual cylindrical magnets and rotor arm...

2005-04-26

2005-04-26

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S267000

Reexamination Certificate

active

06885130

ABSTRACT:
A motor in which dual permanent magnets in addition to the field magnets are positioned to do most of the work in magnetizing the rotor of a motor and coils on the rotor to supplement and focus the magnetic polarization. The amount of electricity required to run the motor is less than with other permanent magnet-assisted motors and considerably less than with standard electric motors. A top permanent cylindrical magnet is held in place by a top end-plate on a housing around a rotor, and a bottom permanent cylindrical magnet is held in place by a bottom end-plate the housing below the rotor, the rotor being rotatable on an axle aligned with an axis of the top cylindrical magnet and of the bottom cylindrical magnet, by which sections of the rotor are in turn magnetized with a polarity matching the top-to-bottom aligned polarity of the top and bottom permanent magnets, and individual inductive wire coils being wound around a portion of a plurality of rotor arms radiating from a rotor axle, the portion being adjacent to an end of each respective rotor arm, the coils being arranged as in an armature of a direct current electric motor, electrified through a commutator and brushes such that the coils produce the same magnetic polarity in the rotor overall as is produced in the rotor by the top and bottom permanent magnets.

REFERENCES:
patent: 4068143 (1978-01-01), Whiteley
patent: 4188556 (1980-02-01), Hahn
patent: 4605873 (1986-08-01), Hahn
patent: 5892307 (1999-04-01), Pavlovich et al.

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