Linear D.C. motor with non-ferrous stator core

Details Linear D.C. motor with non-ferrous stator core Linear D.C. motor with non-ferrous stator core

1987-03-26

1988-12-27

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Linear

310156, 318135, H02K 1402

Patent

active

047942843

ABSTRACT:
The linear D.C. motor is provided with parallel tiers of windings arranged along a linear path. A commutator is connected to these windings and extends along and parallel to the path. A conductor is provided in the form of two parallel strips to supply current through the commutator and through the windings. A plurality of pairs of magnets is arranged with the magnets in each pair being in serial magnetic relationship on opposite sides of the parallel tiers. A support of high magnetic permeability material supports the magnets to form a substantially closed magnetic circuit having a gap in which the tiers of windings are accomodated. Brushes on the support couple the conductor and commutator, and the support is displaceable along the linear path for selectively passing current through the windings, to establish electromagnetic fields in sequence along the magnetic path. Displacement of the support moves the magnets along the linear path in correspondence with the fields. The windings are arranged in an epoxy resin matrix which incorporates fiberglass reinforcements. The windings and associated brushes are arranged so that the current passing through the windings is in the same direction for indentically polarized magnets.

REFERENCES:
patent: 4187453 (1980-02-01), Rough
patent: 4321499 (1982-03-01), Gupta
patent: 4369383 (1983-01-01), Langley
patent: 4645961 (1987-02-01), Malsky
patent: 4733143 (1988-03-01), Chitayat

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