Patent ID: 6251534
Filing Date: 2001-06-26
Classification: F28F,H01M,Y02E

Abstract:
A system, comprising:a first fuel cell stack having an inlet and an outlet;a second fuel cell stack having a first port, a second port different than the first port, and a third port different than the first and second ports, the third port being connected to the first fuel cell stack outlet along a first flow path;a conduit that accepts a reactant gas into the system, the conduit having an outlet connected to the first fuel cell stack inlet along a second flow path different than the first flow path; anda first valve between the conduit outlet and the first port of the second fuel cell stack along a third flow path different than the first and second flow paths so that when the first valve is open the conduit outlet is connected to the first port of the second fuel cell stack along the third flow path and when the first valve is closed the conduit outlet is disconnected to the first port of the second fuel cell stack along the third flow path.