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.
Patent No.:
Date of Patent:
Feb. 24, 2015
Filed:
Dec. 18, 2012
Abb Research Ltd., Zurich, CH;
Parag Upadhyay, Morrisville, NC (US);
ABB Research Ltd., Zurich, CH;
Abstract
Rotating machines and magnetic thrust bearings therefor are disclosed. Magnetic thrust bearings may include a rotor core configured to extend coaxially around a shaft of a rotating machine, a non-magnetic element configured to be coaxially disposed on the shaft, and a stator comprising a stator core and a coil, both of which are configured to extend coaxially around the axis. The rotor core may include a substantially radially extending thrust face and a substantially axially extending peripheral surface. The non-magnetic element may radially space the thrust face from the shaft. The stator core may include a substantially radially extending first pole surface and a substantially axially extending second pole surface. The first pole surface may define an axial air gap with the thrust face, and the second pole surface may define a radial air gap with the peripheral surface.