Patent ID: 6979506
Filing Date: 2005-12-27
Classification: H01M,Y02E

Abstract:
1. A reactant delivery system for a dead-headed PEM fuel cell system, comprising: a fuel cell having a first orifice and a second orifice, the first and second orifices being in fluid communication; a fuel supply coupled to the first orifice along a first conduit, the first conduit having a first valve adapted to regulate flow between the first conduit and the fuel cell, the first conduit being coupled to a second conduit at a location between the fuel supply and the first valve, the first conduit being coupled to a third conduit at a location between the first valve and the fuel cell; a purge valve coupled to the second orifice along a fourth conduit, the fourth conduit having a fourth valve adapted to regulate flow between the fourth conduit and the fuel cell, the fourth conduit being coupled to the second conduit at a location between the fuel cell and the fourth valve, the fourth conduit being coupled to the third conduit at a location between the fourth valve and the purge valve; the second conduit having a second valve adapted to regulate flow between the first conduit and the fourth conduit; and the third conduit having a third valve adapted to regulate flow between the first conduit and the fourth conduit.