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:
Mar. 18, 2003
Filed:
Oct. 27, 2000
Applicant:
Inventor:
Wolfgang Zinser, Kirchheim/Teck, DE;
Assignee:
Ballard Power Systems AG, Kirchheim/Teck-Nabern, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/04 ;
U.S. Cl.
CPC ...
H01M 8/04 ;
Abstract
A device for generating electrical energy, having a fuel cell. A unit includes two rigidly coupled synchronous machines to drive compressors and other additional units. During the starting phase, the idling synchronous machine is energized and, at the end of the starting phase, is changed over to motor operation, to thereby drive the compressors and other additional units and the first synchronous machine, which is set to generator operation.