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. 20, 2001
Filed:
Mar. 11, 1999
Applicant:
Inventors:
Assignee:
Siemens Aktiengesellschaft, Muenchen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/04 ;
U.S. Cl.
CPC ...
H01M 8/04 ;
Abstract
A fuel cell system having a fuel cell block is operated by compressing an operating agent for the fuel cell block with a liquid ring compressor. After compressing the operating agent, water is separated from the operating agent in an apparatus for water separation. The fuel cell block is cooled with the water and, after the cooling, at least a portion of the water is fed back into the apparatus for water separation. This measure reduces the number of components which form the fuel cell system.