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:
Nov. 12, 2013
Filed:
Jul. 08, 2010
Thomas Nussbaumer, Zurich, CH;
Thomas Nussbaumer, Zurich, CH;
Levitronix GmbH, Zurich, CH;
Abstract
An electric rotary drive is proposed, designed as a bearingless external rotor motor, having a magnetically supported, substantially ring-shaped rotor () which is arranged around an inwardly disposed stator (), wherein an air gap () is provided between the rotor () and the stator (), wherein the stator () is designed as a bearing and drive stator with which the rotation of the rotor () can be driven about an axis of rotation (A) and with which the rotor () can be magnetically supported, wherein the rotor () is radially supported in an actively magnetic manner in the plane perpendicular to the axis of rotation (A) and is supported axially in the direction of the axis of rotation (A) and against tilting in a passively magnetic manner. The stator () has, at least in its marginal region (), a magnetic height (H) which is smaller than the magnetic rotor height (H) of the rotor () in its radially inwardly disposed region ().