Patent ID: 11862823
Assignee: AVL LIST GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC H

Claim 0:
1. A fuel cell system (100), comprising:
at least at least one fuel cell stack (1) having:
at least one cathode section (K) and
at least one anode section (A),

an air supply section (3) for supplying air (2) to the anode section (A) of the fuel cell stack (1),
an exhaust air section (4) for discharging exhaust air (5) from the anode section (A) of the fuel cell stack (1),
a supply section (7) for supplying at least one main medium (6) to the cathode section (K) of the fuel cell stack (1),
and exhaust gas discharge section (9) for discharging exhaust gas (8) from the cathode section (K) of the fuel cell stack (1), and
a pump (12) for delivering the at least one main medium (6),
wherein the exhaust gas discharge section (9) is fluidically connected via a recirculation section (14) to the supply section (7) downstream of the pump (12) in order to recirculate exhaust gas (8),
wherein the recirculation section (14) is connected via a jet pump (16) to the supply section (7) in order to introduce recirculated exhaust gas (8) as the secondary flow (20) of the jet pump (16) into the at least one gaseous main medium (6) as the primary flow (18) of the jet pump (16),
wherein a first heat exchanger (21) for heating at least one liquid main medium (6) is arranged between the pump (12) and the jet pump (16);
wherein the at least one heated main medium (6) is heated by the first heat exchanger (21) such that the heated main medium (6) evaporates on account of the pressure drop in the jet pump (16).