Patent · US Active

Method for operating a fuel cell system and fuel cell system

US7935446B2 · kind B2 · utility

0Cited by

2References

15Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Willi Bette · Erlangen, DE
Detlev Coerlin · Erlangen, DE
Walter Stuhler · Hirschaid, DE
Ottmar Voitlein · Lonnerstadt, DE

Key dates

Filing date	Feb 14, 2005
Grant date	May 3, 2011
Priority date	—
Expiry date	Oct 1, 2027

Classification

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

Abstract

During the operation of a fuel-cell assembly, the latter is supplied with ambient air with the aid of a liquid ring pump. Any foreign matter that is contained in the air is taken up by the service fluid of the liquid ring pump. The charging of the service fluid with foreign matter is controlled. In particular, the service fluid is continuously conducted in an circuit via a purification device.

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