Textiles: spinning – twisting – and twining – Apparatus and processes – Open end spinning
Patent
1995-03-15
1996-07-16
Stryjewski, William
Textiles: spinning, twisting, and twining
Apparatus and processes
Open end spinning
57 92, 57404, 57406, 310 6700R, 310 90500, D01H 400, H02K 700
Patent
active
055355820
ABSTRACT:
A drive for a shaftless spinning rotor wherein the spinning rotor is embodied as the rotor of an axial field motor utilizes axially opposed yoke-forming, magnetically conductive elements disposed respectively on the opposite sides of an air gap formed between the spinning rotor and the stator in combination with at least one magnet (preferably either permanent magnets or electromagnets) on one or both the rotor and stator arranged concentrically to one another and to the rotor axis. The present magnet/yoke arrangement does not require exact mutual alignment of oppositely located magnets nor their homogeneous polarization. The present arrangement is self-adjusting because of the generation of a point-symmetrical field which in operation forms a sort of magnetic potential depression. Magnetic drive and guide fields are advantageously decoupled in order to reduce their mutual interference.
REFERENCES:
patent: 3885839 (1975-05-01), Habermann
patent: 4076340 (1978-02-01), Meinke et al.
patent: 4519205 (1985-05-01), Gubler
patent: 4543780 (1985-10-01), Muller et al.
patent: 5250865 (1993-10-01), Meeks
SKF Textilmaschinen-Komponenten GmbH
Stryjewski William
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