Linear motor

Details Linear motor Linear motor

1997-11-17

1999-09-28

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Linear

318135, H02K 4100

Patent

active

059593733

ABSTRACT:
A linear motor includes a coil unit, and a movement unit including a magnetic planar body facing against the coil unit, wherein a changeable clearance .delta. is formed between the magnetic planar body and a plurality of lamination core protrusions in the coil unit, and a nonmagnetic planar body attached onto an upper surface of the magnetic planar body. The linear motor enables a speed control without an electrical current in its applied system such as an elevator, thereby excluding an additional current control system.

REFERENCES:
patent: 5179304 (1993-01-01), Kenjo et al.
patent: 5300846 (1994-04-01), Miller

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