Air cycle machine with magnetic bearings

Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between shaft or shaft sleeve and...

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4152141, 310 905, F01D 2516

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active

RE0361011

ABSTRACT:
An air cycle machine for producing a supply of cooled air and including a compressor rotor fixed to a shaft which is driven by a turbine rotor, the turbine serving to expand air which is pressurized by the compressor. Magnetic bearings support the shaft radially in a housing for rotation about a precisely established axis while a magnetic thrust bearing keeps the shaft in a precisely fixed axial position. The housing and the bearings are constructed as two split sections to permit the housing and the bearings to be separated radially and facilitate repair and/or replacement of the shaft and other internal components.

REFERENCES:
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patent: 5021697 (1991-06-01), Kralick
patent: 5027280 (1991-06-01), Ando et al.
patent: 5113670 (1992-05-01), McAuliffe et al.
patent: 5142175 (1992-08-01), Watanabe
Six-page brochure published Jan. 1988 by Magnetic Bearings, Inc., Radford, Virginia.
One-page article on magnetic bearings,, published by Magnetic Bearings, Inc., Radford, Virginia, publication dated unknown.

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