Multi-phase claw-pole type rotary machine

Details Multi-phase claw-pole type rotary machine Multi-phase claw-pole type rotary machine

2007-07-31

2007-07-31

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S257000

Reexamination Certificate

active

11260535

ABSTRACT:
A two-phase or three-phase claw-pole type rotary machine comprises two or three coaxially arranged single phase rotary machine elements. Each of the rotary machine elements has a magnet rotor, a claw-pole type stator, and an annular stator winding. Claw poles of the stator are divided into a plurality of blocks and are circumferentially separated from one another. A distance between adjacent claw poles of the same polarity in each block is (β0−Δβ), substantially, where β0is a reference pitch when the claw poles of the same polarity are arranged equidistantly apart from one another in a range of 360°, Δβ is π/2q, or π/3q and q is a number of claw poles of the same polarity in each block. The first and second rotary machine elements are circumferentially shifted from each other by 90° or 120°.

REFERENCES:
patent: 6259176 (2001-07-01), Isozaki et al.
patent: 6479911 (2002-11-01), Koike et al.
patent: B1 10136631 (1998-05-01), None
patent: B2 2001161055 (2001-06-01), None

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