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:
Dec. 11, 2001
Filed:
Mar. 24, 2000
Christof Bernauer, Forbach, DE;
Wofgang Krauth, Sasbachrie, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
An electronically commutated motor is described that has a stator, carrying at least two winding phases, multiple magnet poles and grooves and a rotor, in which a defined position between the rotor and the stator can be detected by way of a position sensing device. A rotation speed and power output of the motor can easily be influenced by the fact that the magnet poles have regions with air gaps of different heights from the rotor; and that onset times of a temporally successively occurring energization of the at least two winding phases can be varied in terms of the position between the rotor and the stator and/or the energization duration of the at least two winding phases.