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:
May. 20, 2014
Filed:
Apr. 30, 2008
Thomas Nussbaumer, Zurich, CH;
Thomas Nussbaumer, Zurich, CH;
Levitronix GmbH, Zurich, CH;
Abstract
A bearing-free engine includes a bearing and drive stator having a magnetic stator plane and a magnetic rotor having a magnetic rotor plane and supported magnetically in contact free manner within the stator. The axial height of the rotor is smaller than or equal to a half diameter of the rotor. The rotor is stabilized passively by reluctance forces against axial displacement and tilting. A first sensor signal from a first measurement zone of the rotor is evaluated by a first sensor and a second sensor signal from a second measurement zone of the rotor is evaluated by a second sensor. To determine the tilting of the rotor, at least 50% of the first sensor signal from the first measurement zone is generated from a first control measurement zone which is a part of the first measurement zone disposed either below or above the magnetic rotor plane.