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. 08, 2001
Filed:
Feb. 04, 1999
Istvan Ragaly, Schwieberdingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A synchronous machine formed as a generator for a motor vehicle has a stator, a rotor, an excitation system composed of a plurality of electrically excited individual poles provided in the stator and the rotor and formed as claw poles excited by a joint excitation coil, and a stray field compensation device arranged in free spaces between the claw poles, the stray field compensation device being formed as an additional winding through which current flows and which surrounds the claw poles so that an axial current direction changes from one free space to another free space and a current to neighboring claw poles produces an additional flux which supports a main flux and counteracts a stray flux.