FUEL CELL SYSTEM

摘要

A fuel cell system (1) includes a reformer (2), for generating a reformate gas, a fuel cell (3) for generating electric current from cathode air and reformate gas, an air supply (4), which draws in ambient air and splits this at least into reformer air and cathode air, sends the reformer air via a reformer air line (15) in the direction of the reformer and sends the cathode air via a cathode air line (16) in the direction of a cathode side (11). A recirculating line (20) connects an anode side (10) to the reformer (2). A hot gas delivery (24),which contains a hot gas path (26), is arranged in the recirculating line for driving the anode waste. A cooling air path (27), which is integrated into the cathode air line, through which the reformer air or cathode air flows, reduces thermal load of the hot gas delivery.

主权项

1. A fuel cell system, as an auxiliary power supply unit of a motor vehicle, the fuel cell system comprising:
a reformer for generating a reformate gas from reformer air and fuel; a fuel cell for generating electric current from cathode air and reformate gas, said fuel cell comprising a cathode side and an anode side; an air delivery means for delivering air; a reformer air line; a cathode line; an air supply means for receiving ambient air from the surrounding area of the fuel cell system by said air delivery means and for splitting the air at least into reformer air and cathode air and sending the reformer air via said reformer air line in the direction of said reformer and sending the cathode air via said cathode air line in the direction of said cathode side; a recirculating line connecting said anode side to said reformer and recycling anode waste gas from said fuel cell to said reformer; a hot gas delivery means, said hot gas delivery means being arranged in said recirculating line for driving the anode waste gas, wherein:
said hot gas delivery means contains a hot gas path, through which the anode waste gas flows; andsaid hot gas delivery means contains a cooling air path, which is integrated into said reformer air line or into said cathode air line and through which the reformer air or the cathode air flows.