Rotary assembly including in particular radial support means and

Details Rotary assembly including in particular radial support means and Rotary assembly including in particular radial support means and

1995-12-22

1997-07-29

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 90, 310 67R, 310156, 4174234, H02K 708, H02K 709

Patent

active

056524730

ABSTRACT:
A rotary assembly comprising a stator and a rotor of axis .DELTA., rotary drive means, radial support means, and an active magnetic axial abutment comprising a magnetic circuit in two portions, namely a fixed portion, and a moving portion, the two portions being separated from each other by two parallel plane air gaps, each portion of said magnetic circuit being circularly symmetrical about axis .DELTA., and having the shape of an open channel-section extending about said axis .DELTA., the open ends of the two portions of magnetic circuit facing each other, an electrical coil being received in the inside annular space of the fixed portion of the magnetic circuit, wherein a drive winding secured to said axial abutment coil and received in the inside annular space of the moving portion of said magnetic circuit co-operates with permanent magnets fixed to the moving portion of said magnetic circuit, and facing said drive winding.

REFERENCES:
patent: 4036565 (1977-07-01), Becker
patent: 4082376 (1978-04-01), Wehde et al.
patent: 4609332 (1986-09-01), Miki et al.
patent: 4841204 (1989-06-01), Struder
patent: 4883981 (1989-11-01), Gerfast
patent: 5166566 (1992-11-01), Bernhardt et al.
patent: 5350283 (1994-09-01), Nakazeki et al.

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