Linear motor with magnet rail support, end effect cogging...

Details Linear motor with magnet rail support, end effect cogging... Linear motor with magnet rail support, end effect cogging...

2005-07-19

2005-07-19

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Linear

C310S013000

Reexamination Certificate

active

06919654

ABSTRACT:
A linear motor is provided which includes members for engaging a magnet rail to prevent bending of the magnet rail. Such members may include a wheel or sliding block, for example. The members exert a force proximate an upper edge of the magnet rail to counter potential bending of the magnet rail during operation of the motor, and thereby avoid substantial variations in the air gaps. Furthermore, an armature yoke is provided which includes at least one partial tooth at one end of the armature yoke for reducing an end effect cogging of the linear motor armature in relation to a magnet rail along which the armature will run. In addition, an armature yoke is provided which includes multiple segments which are held end-to-end via fasteners. Such fasteners may serve as part of the magnetic flux path. A support strip may be provided to reduce bowing.

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Communication Relating to the Results of the Partial International Search regarding International Application No. PCT/US03/03276.

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