Patent ID: 7736775

Claim:
A fuel cell system, comprising: a fuel cell stack composed of a plurality of fuel cells, said fuel cell stack having a cathode side formed with a cathode inlet and a cathode outlet and an anode side formed with an anode inlet and an anode outlet, said anode side being connected to receive a hydrogen-containing medium and said cathode side being connected to receive an oxygen-containing medium; a feed line for the oxygen-containing medium connected to said cathode inlet and a compressor connected in said feed line; an anode-side exhaust gas line connected between said anode outlet and a suction side of said compressor, said exhaust gas line carrying anode exhaust gas and feeding at least some of the anode exhaust gas to said cathode side via said feed line; and the fuel cell system further including a reservoir vessel for collecting anode exhaust gas connected in said exhaust-gas line and a restrictor connected in said exhaust-gas line between said reservoir vessel and an inlet opening formed in said exhaust-gas line.