Patent · US Expired

Fuel cell block including a water separator

US7338728B2 · kind B2 · utility

1Cited by

2References

14Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Norbert Ismaier · Eschborn, DE
Josef Lersch · Heroldsbach, DE
Arno Mattejat · Bubenreuth, DE

Key dates

Filing date	Sep 16, 2002
Grant date	Mar 4, 2008
Priority date	—
Expiry date	Jun 4, 2024

Classification

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

Abstract

A fuel cell block includes a plurality of channels and pipings and a resulting plurality of connecting and sealed points. Vibrations of the fuel cell block, particularly in vehicles, lead to stress and fatigue of sealed points. This causes a safety problem during operation of the fuel cell block. In order to solve the problem, the fuel cell block includes an end plate, an operating material channel that goes through the end plate and an operating material control device arranged at least partly in the operating material channel. The operating material control device is integrated at least partly into the end plate.

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