Patent · US Expired

Fuel cell stack

US7335437B2 · kind B2 · utility

8Cited by

6References

1Claims

0Family size

Assignee

Daimlerchrysler AG · US

Inventors

Felix Blank · Eßlingen, DE
Cosmas Heller · Friedrichshafen, DE
Ottmar Schmid · Markdorf, DE

Key dates

Filing date	Nov 6, 2001
Grant date	Feb 26, 2008
Priority date	—
Expiry date	Feb 19, 2023

Classification

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

Abstract

A fuel cell stack for gaseous fuel includes a membrane electrode unit and a distribution plate including a channel area having gas channels for distributing the anode gas and the cathode gas to the membrane electrode unit and a port area for supplying the anode gas and the cathode gas into the channel area. Additional connecting channels discharge from the port areas along the gas channels so that unused anode gas or cathode gas is locally meterable from the port areas into the gas channels via these connecting channels.

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