Eberspacher Climate Control Systems Gmbh & Co. Kg

Jörg Vom Schloss

Andreas Kaupert

Karsten Reiners

Valentin Notemann

Markus Münzner

Markus Willkommen

A burner () for burning a gaseous oxidant with a gaseous fuel, with a combustion chamber (), in which the combustion reaction takes place during the operation of the burner (), has a wall structure () which defines the combustion chamber () on the inlet side and which has oxidant openings () for introducing the oxidant into the combustion chamber () and fuel openings (), which are separate therefrom, for introducing the fuel into the combustion chamber (). The wall structure () has an oxidant distributor space (), which is fluidically connected with the oxidant openings () on the outlet side and is fluidically connected with at least one oxidant feed opening () on the inlet side, as well as contains a fuel distributor space (), which is fluidically separated from the oxidant distributor space () and is fluidically connected on the outlet side with the fuel openings () and is fluidically connected with at least one fuel feed opening () on the inlet side. A plurality of oxidant feed openings () are formed in the wall structure () on a side facing away from the combustion chamber (), a plurality of fuel feed openings () are formed in the wall structure () on the side facing away from the combustion chamber (), and the oxidant feed openings () and fuel feed openings () are arranged next to each other and alternating with one another in a straight connection area ().

Burner

A fuel cell system (), especially in a motor vehicle, is provided with a fuel cell (), which generates electric current during the operation from anode gas and cathode gas, with a residual gas burner (), which reacts anode waste gas with cathode waste gas into burner waste gas during the operation; with an air delivery device (), which feeds air as cathode gas to the fuel cell () via a fuel cell air line () during the operation; and with a first heat exchanger (), which couples a waste gas line () removing burner waste gas from the residual gas burner () with the fuel cell air line () in a heat-transmitting operation. The start-up process of the system () is improved with an auxiliary burner (), which reacts air with a fuel into an auxiliary burner waste gas during the operation; with a bypass air line (), which is connected on the inlet side to the fuel cell air line () between the air delivery device () and the first heat exchanger () and which is connected to the fuel cell air line () on the outlet side between the first heat exchanger () and the fuel cell (). A second heat exchanger () couples an auxiliary waste gas line () removing auxiliary burner waste gas from the auxiliary burner () with the bypass air line () in a heat-transmitting manner.

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Herzogenrath, Germany

Jörg Vom Schloss