Fuel cell system for production of electricity in a vehicle with internal combustion engine

摘要

By control of the air supply and/or an ignition unit (11) associated with it, after-burner (7) operation is optionally started or stopped. Downstream of the after-burner (7), a branch unit (20) permits reformate or exhaust gases to be sent entirely or in part to the engine (22) and/or to the exhaust gas treatment unit (26). A heat exchanger (15) downstream of the after-burner, heats air supplied to the fuel cell. The branch unit is located between the after burner and the heat exchanger or downstream of the heat exchanger.