Patent ID: 8481217

Claim:
A supply system for a fuel cell stack, said supply system comprising: a cathode gas supply line for supplying an oxidant to a cathode input of the fuel cell stack; an anode gas supply line for supplying a fuel to an anode input of the fuel cell stack; an anode gas recirculation line for recirculating partially reacted anode gas from an anode output to the anode input; and a purge line connected to convey the partially used anode gas as purge gas from the anode gas recirculation line into the cathode gas supply line; a partial flow line connected to and branching off from the cathode gas supply line in such a manner that the partial flow line receives a partial flow of the oxidant from the cathode gas supply line; and a conditioning arrangement arranged upstream of the cathode input and connected to the partial flow line, wherein the conditioning arrangement includes a mixing station to mix the partial flow of the oxidant supplied by the partial flow line with the purge gas and a device to compress, accelerate or heat the gas flow from the mixing station, and conduct it into the cathode gas supply line.