Linear motor

Details Linear motor Linear motor

1981-07-17

1983-01-25

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Linear

H02K 4100

Patent

active

043705774

ABSTRACT:
A linear motor of which is mover and its stator have magnetic teeth and is arranged such that the mover can move linearly on the stator while maintaining a constant gap with respect to the stator. The motor has a permanent magnet which is long in the longitudinal direction of the stator and two cores which are stacked perpendicularly to the longitudinal direction of the stator with said permanent magnet between them. A plurality of coils, each of which is wound over the two cores and the permanent magnet and has a magnetization axis which is perpendicular to the longitudinal direction of the stator. Each of the two cores has n groups (wherein n is an integer) of magnetic teeth facing the stator and each of the n group of magnetic teeth is arranged such that the pitch of a tooth is constant and is the same as that of the magnetic teeth of the stator but the phases of the magnetic teeth of each group are different from each other.

REFERENCES:
patent: 3999107 (1976-12-01), Reuting
patent: 4259602 (1981-03-01), Kuribayashi et al.
"Linear Incremental Motor", IBM Tech. Disclosure Bulletin, vol. 6, No. 9, 2/1964.

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