Patent ID: 8865369

Claim:
A device for recirculation of anode exhaust gases of a fuel cell with a recirculation blower ( 15 ) and at least one jet pump driven by the drive stream of a fuel which is under pressure, wherein the fuel cell ( 1 ) includes an anode space ( 3 ) with an anode inlet ( 4 ) and an anode outlet ( 5 ), wherein the anode outlet ( 5 ) is connected with a suction connection ( 7 a , 7 b ) of at least one jet pump ( 6 a , 6 b ) having an inlet and an outlet, and wherein in a first flow loop the outlet ( 13 a , 13 b ) of the at least one jet pump ( 6 a , 6 b ) is connected with the anode inlet ( 4 ) and in a second flow loop the outlet ( 13 a , 13 b ) of the at least one jet pump ( 6 a , 6 b ) branches from the first flow loop at a “T” connection and thereafter is connected with the suction connection ( 14 ) of the recirculation blower ( 15 ), wherein the outlet ( 16 ) of the recirculation blower ( 15 ) is connectable with a suction connection ( 7 b ′) of the at least one jet pump ( 6 a , 6 b ) bypassing the anode space ( 3 ) and connectable with a supplemental exhaust gas space ( 20 ) in which gasses are (a) decomposed or diluted or (b) exhausted to the environment.