Patent · US Expired

Method for operating a fuel cell system and fuel cell system

US6203935A · kind A · utility

4Cited by

2References

5Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Walter Stuhler · Hirschaid, DE
Herbert Stenger · Burgthann, DE
Harry Gellert · Effeltrich, DE

Key dates

Filing date	Mar 11, 1999
Grant date	Mar 20, 2001
Priority date	—
Expiry date	Mar 11, 2019

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.