The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 09, 2018

Filed:

Dec. 26, 2013
Applicant:

Aktiebolaget Skf, Göteborg, SE;

Inventors:

Joaquim Da Silva, Sennely, FR;

Yves Dupuis, Saint-Just, FR;

Olivier Lemarchand, Guichainville, FR;

Lateb Ramdane, Vernon, FR;

Erwan Salahun, Groix, FR;

Ulrich Schroeder, Mont-Saint-Aignan, FR;

Assignee:

SKF MAGNETIC MECHATRONICS, Saint-Marcel, FR;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/058 (2006.01); F16C 32/04 (2006.01); H02K 7/09 (2006.01); F04D 25/16 (2006.01);
U.S. Cl.
CPC ...
F04D 29/058 (2013.01); F04D 25/16 (2013.01); F16C 32/0425 (2013.01); F16C 32/0478 (2013.01); F16C 32/0495 (2013.01); H02K 7/09 (2013.01); F16C 2360/24 (2013.01); F16C 2360/42 (2013.01); F16C 2360/44 (2013.01);
Abstract

A hybrid magnetic suspension of a rotor () having compressor wheels () having permanent magnets () integral to shrunk fit rings () arranged on the rotor () in the vicinity of the compressor wheels (), permanent magnets () integral to stationary rings () coaxially arranged with the rotor () and associated with a resilient material () to define a passive radial magnetic bearing, coils () associated with magnetic armatures () and facing rotor parts () being located perpendicularly to the rotor (), and axial sensors () configured for sensing the axial position of the rotor () and control means () configured for feeding the coils () as a function of the outputs of the axial sensors () for generating both axial bearing forces and a motor torque and thereby being adapted for defining an axial bearingless motor.


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