Abstract: An exhaust gas heat exchanger and bypass has an intake manifold, an outlet manifold, a duct for a heat exchanger, and a bypass duct. The heat exchanger duct and the bypass duct run in parallel between the intake manifold and the outlet manifold and are sealingly connected to the outlet manifold. The heat exchanger is arranged in the interior of the heat exchange duct such that the intake side of the heat exchanger is sealingly connected to the heat exchanger duct and the outlet side of the heat exchanger is slideably received in the heat exchanger duct to allow thermal expansion of the heat exchanger relative to the heat exchanger duct.

Abstract: The application relates to a housing, in particular for a heat exchanger in an exhaust system of a motor vehicle, comprising a jacket with two joining margins which are joined along a joining line, the jacket having two connecting openings formed by recesses in the joining margins. The application also relates to a method of producing a housing by means of the following steps: First it is determined under which angle relative to each other two connecting openings of the housing are to be arranged with respect to a central line of the housing. Then the shape of a jacket is determined, taking into account the axial distance between the connecting openings. Subsequently the jacket is cut out from a sheet of material, with recesses which later form the connecting openings being cut out on at least one of two joining margins which later are adjoining each other. Thereafter the jacket is bent such that the two joining margins rest at each other. Finally the joining margins are connected with each other.

Abstract: An exhaust gas heat exchanger and bypass has an intake manifold, an outlet manifold, a duct for a heat exchanger, and a bypass duct. The heat exchanger duct and the bypass duct run in parallel between the intake manifold and the outlet manifold and are sealingly connected to the outlet manifold. The heat exchanger is arranged in the interior of the heat exchange duct such that the intake side of the heat exchanger is sealingly connected to the heat exchanger duct and the outlet side of the heat exchanger is slideably received in the heat exchanger duct to allow thermal expansion of the heat exchanger relative to the heat exchanger duct.