Shaftless spinning rotor for an open-end spinning machine

Details Shaftless spinning rotor for an open-end spinning machine Shaftless spinning rotor for an open-end spinning machine

1994-12-07

1997-06-10

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Rotary

H02K 709

Patent

active

056379412

ABSTRACT:
A shaftless spinning rotor for an open-end spinning machine is adapted to operate as a rotor driven by a stator in an axial field motor supported thereon by a combined magnetic and gas bearing producing separate magnetic fields for guiding orientation of the rotational axis of the rotor and for driving rotation thereof which achieves smooth substantially non-oscillating operation with minimal heating in the region of the axis of rotation by interposing a barrier layer with nonmagnetic properties between respective means for conducting the magnetic flux of the driving and guiding magnetic fields for decoupling the magnetic fields. In particular, separate yokes are utilized for conducting the fluxes of the driving and guiding magnetic fields and permanent magnets are primarily used to generate the magnetic fields.

REFERENCES:
patent: 4128280 (1978-12-01), Purtschert
patent: 4970422 (1990-11-01), Lind
patent: 5196748 (1993-03-01), Rigney
patent: 5218257 (1993-06-01), Tozoni
patent: 5319275 (1994-06-01), Tozoni
patent: 5385007 (1995-01-01), Hartel et al.

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