Abstract: A burner arrangement for the combustion of a fuel gas/oxygen mixture, characterized by a body permeable for the mixture whose surface regions defining the free cross section of flow are covered with an oxidation catalyst, by a feeder device arranged on an intake side of the body permeable for the mixture which distributes the mixture over at least essentially the entire active intake area of the intake side and by a layer coordinated with the feeder device and separating the catalytic combustion zone of the permeable body from the mixture inflow, but permeable for it, which serves as a flashback safety.

Abstract: A heat-emitting burner element, especially for use in a reformer unit of a fuel cell system, consists of two at least essentially parallel and spaced-apart plates and is characterized by the fact that the plates form a reaction gap between them, and as a result of the catalytic combustion of a fuel gas/oxygen mixture there on a catalytic coating facing the reaction gap provided on at least one of the plates, generate heat and emit it by radiation, convection and conduction directly through the coated plates(s) to at least one neighboring endothermic stage and that at least one of the plates displays structural elements having the catalytic coating and also extending into the reaction gap, which structural elements extend in the flow direction and consist, e.g., of fins or bars. A device for introducing diluting air transversely to the flow direction through the reaction gap is preferably provided.

Abstract: A burner arrangement for the combustion of a fuel gas/oxygen mixture, characterized by a body permeable for the mixture whose surface regions defining the free cross section of flow are covered with an oxidation catalyst, by a feeder device arranged on an intake side of the body permeable for the mixture which distributes the mixture over at least essentially the entire active intake area of the intake side and by a layer coordinated with the feeder device and separating the catalytic combustion zone of the permeable body from the mixture inflow, but permeable for it, which serves as a flashback safety.

Abstract: A heat-emitting burner element, especially for use in a reformer unit of a fuel cell system, consists of two at least essentially parallel and spaced-apart plates and is characterized by the fact that the plates form a reaction gap between them, and as a result of the catalytic combustion of a fuel gas/oxygen mixture there on a catalytic coating facing the reaction gap provided on at least one of the plates, generate heat and emit it by radiation, convection and conduction directly through the coated plates(s) to at least one neighboring endothermic stage and that at least one of the plates displays structural elements having the catalytic coating and also extending into the reaction gap, which structural elements extend in the flow direction and consist, e.g., of fins or bars. A device for introducing diluting air transversely to the flow direction through the reaction gap is preferably provided.