Abstract: A flat tube for an exhaust gas cooler including two flat wide sides and two rounded narrow sides. The flat tube further including a plurality of moulded turbulence projections arranged on the two wide sides in two flow rows and projecting from a respective one of the two wide sides toward the other of the two wide sides. The plurality of turbulence projections are respectively structured in an elongated manner and arranged at an angle relative to a longitudinal direction. The flat tube also including a plurality of moulded support projections projecting from a respective one of the two wide sides away from the other of the two wide sides. The plurality of support projections are arranged between the two flow rows. The two narrow sides each have an elongated flat region that merges into the two wide sides via a plurality of rounded corner regions.

Abstract: The invention relates to a flat pipe, comprising two substantially flat first walls that are opposite each other and arranged parallel to each other, two arcuate second walls that connect the two flat first walls, and an interior through which a medium can flow, wherein projections that protrude into the interior are provided in at least one of the flat first walls, wherein projections that protrude into the interior are provided in the arcuate second walls.

Abstract: A flat tube for an exhaust gas cooler may include two flat wide sides and two rounded narrow sides. A plurality of moulded turbulence projections may be arranged on the two wide sides in two flow rows and project from a respective one of the two wide sides toward the other of the two wide sides. The plurality of turbulence projections may be respectively structured in an elongated manner and arranged at an angle relative to the longitudinal direction. The flat tube may also include a plurality of moulded support projections projecting from a respective one of the two wide sides away from the other of the two wide sides. The plurality of support projections may be arranged between the two flow rows. The two narrow sides may each have an elongated flat region that merges into the two wide sides via a plurality of rounded corner regions.

Abstract: The invention relates to an apparatus for supplying a coolant to a closed fluid circuit, preferably for an exhaust gas cooler of an internal combustion engine of a motor vehicle, comprising a connecting stub, wherein the connecting stub is designed for insertion into a coolant connection, wherein a flow-directing device, which is of projection-like design, for the coolant is integrated in the interior of the connecting stub.

Abstract: A device for the exchange of heat between a first and a second medium with pairs of trays stacked one on top of the other in a stacking direction is provided, wherein a first flow chamber that can be flowed through by a first medium is provided between the two trays of at least one pair of trays or several pairs of trays and a second flow chamber that can be flowed through by a second medium is provided between two pairs of trays adjacent to one another, wherein the first flow chamber has first flow path with flow path sections that can be flowed through consecutively in opposite directions for the first medium, which are separated from one another by a division wall arranged between the at least two trays of the at least one pair of trays, and wherein the second flow chamber has a second flow path for the second medium.

Abstract: The invention relates to an apparatus for supplying a coolant to a closed fluid circuit, preferably for an exhaust gas cooler of an internal combustion engine of a motor vehicle, comprising a connecting stub, wherein the connecting stub is designed for insertion into a coolant connection, wherein a flow-directing device, which is of projection-like design, for the coolant is integrated in the interior of the connecting stub.

Abstract: The invention relates to a flat pipe, comprising two substantially flat first walls that are opposite each other and arranged parallel to each other, two arcuate second walls that connect the two flat first walls, and an interior through which a medium can flow, wherein projections that protrude into the interior are provided in at least one of the flat first walls, wherein projections that protrude into the interior are provided in the arcuate second walls.

Abstract: An exhaust-gas cooler for a motor vehicle is provided that includes a flow path which can be traversed by exhaust gas of an internal combustion engine and which has an inlet region and an outlet region for the exhaust gas, a housing which surrounds the flow path and which has at least one inlet and at least one outlet for a liquid coolant of a coolant circuit, wherein the coolant can flow around the flow path in order to cool the exhaust gas, and wherein the coolant circuit is formed as a main cooling circuit of the internal combustion engine of the motor vehicle, wherein the exhaust-gas cooler is arranged in the main cooling circuit in series with the internal combustion engine.

Abstract: An evaporator, in particular an exhaust gas evaporator for an exhaust gas system of a motor vehicle, is provided that includes a plate sandwich structure having a plurality of fluid-guiding plate elements stacked on top of one another for guiding a first fluid, wherein at least one rib, in particular a corrugated rib, is disposed between two plate elements for guiding a second fluid, wherein a plate element comprises at least one cover element covering a flow channel and a flow channel plate unit, wherein the flow channel plate unit comprises at least one flow channel plate having flow channels in order to guide the first fluid from an inlet to an outlet.

Abstract: An exhaust-gas cooler for a motor vehicle is provided that includes a flow path which can be traversed by exhaust gas of an internal combustion engine and which has an inlet region and an outlet region for the exhaust gas, a housing which surrounds the flow path and which has at least one inlet and at least one outlet for a liquid coolant of a coolant circuit, wherein the coolant can flow around the flow path in order to cool the exhaust gas, and wherein the coolant circuit is formed as a main cooling circuit of the internal combustion engine of the motor vehicle, wherein the exhaust-gas cooler is arranged in the main cooling circuit in series with the internal combustion engine.

Abstract: An exhaust gas installation is provided that comprises an exhaust gas evaporator mounted downstream of an internal combustion engine of a motor vehicle. The exhaust gas evaporator has a sandwich-type structure wherein exhaust gas planes and coolant planes are alternately directly adjacently arranged, providing a very compact while very efficient exhaust gas evaporator.

Abstract: A device for the exchange of heat between a first and a second medium with pairs of trays stacked one on top of the other in a stacking direction is provided, wherein a first flow chamber that can be flowed through by a first medium is provided between the two trays of at least one pair of trays or several pairs of trays and a second flow chamber that can be flowed through by a second medium is provided between two pairs of trays adjacent to one another, wherein the first flow chamber has first flow path with flow path sections that can be flowed through consecutively in opposite directions for the first medium, which are separated from one another by a division wall arranged between the at least two trays of the at least one pair of trays, and wherein the second flow chamber has a second flow path for the second medium.