Induction disk motor with metal tape components

Details Induction disk motor with metal tape components Induction disk motor with metal tape components

1980-10-14

1982-12-14

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310216, H02K 122

Patent

active

043639887

ABSTRACT:
An induction motor of the squirrel cage type is disclosed. The stator body and rotor body of the motor are each disclosed as being made of a coil of concentric layers of a thin metal tape which is slotted to receive the rotor and stator windings. The motor is similar to a conventional disk type motor except that the secondary, instead of being a solid copper or aluminum disk, is a coil of concentric turns of notched metal tape which improves the efficiency by reducing the effective air gap. A method of manufacture of the coil of tape is disclosed wherein identical notches are formed in the tape with a progressively increasing spacing between the notches which permits the notches to come into radial register with one another to form a slot in the end of the stator or rotor body.

REFERENCES:
patent: 1605796 (1926-11-01), Tanzler
patent: 2356972 (1944-08-01), Chubbuck
patent: 2550571 (1951-04-01), Litman
patent: 2758231 (1956-08-01), Welter
patent: 3048723 (1962-08-01), Watson
patent: 3061750 (1962-10-01), Stegman
patent: 3069577 (1962-12-01), Lee
patent: 4081298 (1968-03-01), Mendelsohn et al.

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