Patent · US Expired

Fuel cell apparatus with pressurized fuel tank and pressure-reducing unit for supplying fuel at a reduced operating pressure

US7214438B2 · kind B2 · utility

0Cited by

2References

29Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Ian Faye · Stuttgart, DE
Thanh-Hung Nguyen-Schaefer · Asperg, DE
Rainer Saliger · Freiberg, DE
Jan-Michael Graehn · Stuttgart, DE

Key dates

Filing date	Jul 29, 2003
Grant date	May 8, 2007
Priority date	—
Expiry date	May 3, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T90/40
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The fuel cell apparatus has a fuel cell (1), a pressurized fuel tank (2) for supplying fuel at a supply pressure and a pressure-reducing unit (4) for reducing the supply pressure to an operating pressure of the fuel cell. In order to improve the overall efficiency of the unit in comparison to the art the pressure-reducing unit (4) is constructed as a cooling apparatus for cooling at least one cooling element, preferably a condenser (5).

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