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:
Sep. 04, 2018
Filed:
Aug. 17, 2012
Dietmar Metz, Meckenheim, DE;
Martin Mueller, Speyer, DE;
Aleksandar Sekularac, Worms, DE;
BorgWarner Inc., Auburn Hills, MI (US);
Abstract
An air feed device () for a fuel cell, having a shaft (); a compressor wheel () fastened to one of the ends () of the shaft (), a bearing arrangement () arranged in a bearing housing () for mounting the shaft (), and an electric motor () for driving the shaft (), which electric motor is arranged in the bearing housing (). The shaft () has two shaft bearing portions () and a magnet portion () arranged between the shaft bearing portions (), forming the rotor of the electric motor (). The shaft bearing portions () and the magnet portion () are centered relative to one another by means of a centering arrangement (A,F) which engages on an outer edge (A), the shaft bearing portions () and the magnet portion () bearing in each case axially against one another.