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:
Oct. 02, 2001
Filed:
Jan. 19, 1999
Uwe Knappenberger, Muehlacker, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
An electrical machine formed as a fluid-cooled three-phase alternating current generator has a cup-shaped housing, a stator arranged in the housing, a drive system, a shaft driven by the drive system, a claw pole rotor system mounted on the shaft, the claw pole rotor system including a first pole ring which is mounted on the shaft, formed as a pole wheel half and runs in claws, and a second pole ring which is formed as a pole wheel half and runs also in claws, so that tips of the claws of one of the pole rings extend in gaps between the claws of the other pole ring, pole rings producing a cooling air stream in the housing for withdrawing heat which is generated in the machine by convection through an outer casing of the housing to fluid medium which surrounds the housing, a plurality of substantially radially extending blower vanes formed on substantially flat end side of a respective one of the pole rings which is located at a side opposite to the drive system, and a ring chamber closing the blower vanes in an axial direction and formed as a part of a housing bottom.