Abstract: The present disclosure describes a heat exchanger of a motor vehicle that is supplied with a cooling air mass flow that changes depending on a travelling speed of the motor vehicle. The heat exchanger includes a heat exchanger block with a plurality of flat tubes that are each received on a longitudinal end side in an associated passage opening of a tube sheet and provide a coolant path. A tank is connected to the tube sheet and defines a coolant header. An additional element is arranged on an outer edge or on an outer marginal region of the tube sheet. The additional element is structured and arranged to provide an at least partial covering of the tube sheet relative to an inflow side, e.g., relative to the cooling air mass flow.

Abstract: A heat exchanger may include a heat exchanger block including a plurality of flat tubes held at a longitudinal end side in a respective rim hole of an associated tube plate. The respective rim hole may have at least two mutually opposite and substantially straight long sides and at least two mutually opposite narrow sides. A brazed connection may be disposed between at least one of the at least two long sides of at least one of the respective rim holes and a corresponding one of the flat tubes arranged therein, and the brazed connection may have an undulating brazing boundary. At least one of the plurality of flat tubes may include at least one partition. The undulating brazing boundary may have a high point that defines an increased thickness in relation to a plane running through two opposite groove bases disposed in the tube plate.

Abstract: The present disclosure describes a heat exchanger of a motor vehicle that is supplied with a cooling air mass flow that changes depending on a travelling speed of the motor vehicle. The heat exchanger includes a heat exchanger block with a plurality of flat tubes that are each received on a longitudinal end side in an associated passage opening of a tube sheet and provide a coolant path. A tank is connected to the tube sheet and defines a coolant header. An additional element is arranged on an outer edge or on an outer marginal region of the tube sheet. The additional element is structured and arranged to provide an at least partial covering of the tube sheet relative to an inflow side, e.g., relative to the cooling air mass flow.

Abstract: A heat exchanger may include a plate, a seal and a cover. The plate may have at least two receiving grooves having a respective groove base, an intermediate region disposed in a plane between a plurality of rim holes, and a ramp extending between the intermediate region and the respective groove base of the at least two receiving grooves. The seal extends in the at least two receiving grooves. The ramp may be rounded at a transition to the receiving grooves with a first radius and at a transition to the intermediate region with a second radius, and the ramp may be inclined between 20°<?<65° relative to the intermediate region or has an S-shaped progression. An inflection point of the plate may be arranged in a region from 10% to 80% of a height difference between the intermediate region and the respective groove base.

Abstract: A corrugated fin, in particular for a heat exchanger, having a substantially corrugated design, having a plurality of fin surfaces, wherein adjoining fin surfaces are connected to one another by means of a fin arch in such a way that a medium can flow through an intermediate space between adjoining fin surfaces, wherein the fin surfaces are arranged at an angle with respect to one another perpendicularly with respect to a throughflow direction for the medium, wherein the fin surface has at least one bulge which protrudes out of the plane of the fin surface, wherein the extent of the bulge in a direction perpendicularly with respect to the air throughflow direction is smaller than the extent of the fin surface in said direction.

Abstract: A heat exchanger, for example a charge-air cooler, may include at least two bases respectively having a passage for receiving a plurality of fluid-conducting tubes on a longitudinal end side. The heat exchanger may include at least one collecting chamber arranged on at least one of the at least two bases, and at least one lateral part received via a longitudinal end area at least partially in an end-side passage of an associated base of the at least two bases. The longitudinal end area of the at least one lateral part may have a beam shape and at least one recess. The longitudinal end area of the at least one lateral part may further have a cross-sectional surface that is smaller than a cross-sectional surface of the end-side passage of the associated base.

Abstract: A heat exchanger, for example an intercooler or a coolant radiator, may include at least two floors each having a passage for accommodating a longitudinal end region of a plurality of fluid-conducting tubes. The heat exchanger may further include at least one side part having a longitudinal end region at least one of at least partially accommodated in a passage at an end of an associated floor and adjoining the associate floor. The at least one side part may include at least two segments having a different cross-section from one another.

Abstract: A heat exchanger may include a heat exchanger block including a plurality of flat tubes held at a longitudinal end side in a respective rim hole of an associated tube plate. The respective rim hole may have at least two mutually opposite and substantially straight long sides and at least two mutually opposite narrow sides. A brazed connection may be disposed between at least one of the at least two long sides of at least one of the respective rim holes and a corresponding one of the flat tubes arranged therein, and the brazed connection may have an undulating brazing boundary. At least one of the plurality of flat tubes may include at least one partition. The undulating brazing boundary may have a high point that defines an increased thickness in relation to a plane running through two opposite groove bases disposed in the tube plate.

Abstract: A heat exchanger may include a plate, a seal and a cover. The plate may have at least two receiving grooves having a respective groove base, an intermediate region disposed in a plane between a plurality of rim holes, and a ramp extending between the intermediate region and the respective groove base of the at least two receiving grooves. The seal extends in the at least two receiving grooves. The ramp may be rounded at a transition to the receiving grooves with a first radius and at a transition to the intermediate region with a second radius, and the ramp may be inclined between 20°<?<65° relative to the intermediate region or has an S-shaped progression. An inflection point of the plate may be arranged in a region from 10% to 80% of a height difference between the intermediate region and the respective groove base.

Abstract: A corrugated fin, in particular for a heat exchanger, having a substantially corrugated design, having a plurality of fin surfaces, wherein adjoining fin surfaces are connected to one another by means of a fin arch in such a way that a medium can flow through an intermediate space between adjoining fin surfaces, wherein the fin surfaces are arranged at an angle with respect to one another perpendicularly with respect to a throughflow direction for the medium, wherein the fin surface has at least one bulge which protrudes out of the plane of the fin surface, wherein the extent of the bulge in a direction perpendicularly with respect to the air throughflow direction is smaller than the extent of the fin surface in said direction.

Abstract: The invention relates to a heat exchanger, particularly for a motor vehicle, comprising a plurality of exchanger tubes (3) attached to at least one floor for conveying a first fluid, wherein the exchanger tubes (3) are disposed in a housing through which a second fluid flows, wherein a holding member (5) is disposed inside the housing, wherein at least two of the exchanger tubes (3) are supported relative to one another by means of the holding member (5).

Abstract: A heat exchanger, particularly an exhaust gas heat exchanger, for transferring heat in two stages between a first fluid and second and third fluids that have different temperatures includes a block for separately conducting the first and second and third fluids in a heat transferring manner. The block encompasses a number of ducts through which the first fluid can flow, a first chamber of a high-temperature part through which the second fluid can flow and which accommodates the ducts, a second chamber of a low-temperature part through which the third fluid flows and which accommodates the ducts, and a housing in which the first and second chamber as well as the ducts are arranged. The first chamber and the second chamber are separated from one another by a separation area that is mounted in a groove.

Abstract: A device for reducing corrosive constituents in an exhaust gas condensate of an internal combustion engine is provided, in which the exhaust gas of the internal combustion engine is recirculated to the internal combustion engine via an exhaust gas recirculation system having an exhaust gas cooler and at least one exhaust gas recirculation line. To protect the exhaust gas recirculation system along with intake air components and the internal combustion engine from the corrosive effects of the exhaust gas condensate, the exhaust gas recirculation system has at least one neutralization unit for neutralizing the corrosive constituents of the exhaust gas condensate, which is connected to at least one component arranged downstream, through which the exhaust gas, which has been freed of nearly all corrosive constituents, flows.

Abstract: The invention relates to a heat exchanger (or a motor vehicle, comprising a first flow path (1) with a number of flow conduits (6) for conducting a fluid to be cooled, a deflection region (13), situated downstream of the first flow path (1) and a second flow path (2), situated downstream ol the deflection region (13). According to the invention, the flow conduits (6) of the first flow path (1) continue in the deflection region (13) and the second (low path (2) as continuous separate flow conduits (6). The invention also relates to a flow conduit (41, 41?, 61, 61?, 71, 71?, 81, 81?, 91, 91?) for a heat exchanger (30,40) for exchanging heat between a first fluid (31) and a second fluid (33). The aim of the invention is to guarantee an improved transfer of heat with a simultaneous acceptable pressure drop, whilst reducing the blocking risk.

Abstract: A device for recycling and cooling exhaust gas of an internal combustion engine is disclosed, comprising a first exhaust-gas heat exchanger and a second exhaust-gas heat exchanger, wherein the first and second exhaust gas heat exchangers are combined in a structural unit and form a module.

Abstract: A device for reducing corrosive constituents in an exhaust gas condensate of an internal combustion engine is provided, in which the exhaust gas of the internal combustion engine is recirculated to the internal combustion engine via an exhaust gas recirculation system having an exhaust gas cooler and at least one exhaust gas recirculation line. To protect the exhaust gas recirculation system along with intake air components and the internal combustion engine from the corrosive effects of the exhaust gas condensate, the exhaust gas recirculation system has at least one neutralization unit for neutralizing the corrosive constituents of the exhaust gas condensate, which is connected to at least one component arranged downstream, through which the exhaust gas, which has been freed of nearly all corrosive constituents, flows.

Abstract: A flow channel for a heat exchanger for exchanging heat between a first fluid and a second fluid, the flow channel having, perpendicular to a flow channel axis, a cross-section that can be traversed, the flow channel providing for an improved transfer of heat with an acceptable drop of pressure and a reduced risk of blocking. The flow channel has a hydraulic diameter, defined as quadruple the ratio between the surface of the cross-section that is traversed and the perimeter that can be moistened by the fluid, of between 1.5 mm and 6 mm. Also a heat exchanger having a plurality of flow channels of this type, through which the first fluid flows and fluidically connected by a fluid connection. Also a charge-air system and an exhaust gas recycling system having such flow channels.

Abstract: An extruded tube for a heat exchanger is provided that includes two at least approximately parallel outer side walls that extend in a longitudinal direction and a transverse direction of the extruded tube and that are connected by two outer narrow sides in a vertical direction of the extruded tube, wherein at least one continuous web extends between the side walls in the longitudinal direction and in the vertical direction and separates at least two ducts of the extruded tube, and wherein at least one of the outer side walls has embossings that serve to form both bulged portions that project into the ducts of the side walls and also bulged portions that extend substantially in the transverse direction of the web, wherein the bulged portions of the at least one web have a controlled orientation with respect to the transverse direction.

Abstract: The invention relates to a heat exchanger, particularly for a motor vehicle, comprising a plurality of exchanger tubes (3) attached to at least one floor for conveying a first fluid, wherein the exchanger tubes (3) are disposed in a housing through which a second fluid flows, wherein a holding member (5) is disposed inside the housing, wherein at least two of the exchanger tubes (3) are supported relative to one another by means of the holding member (5).

Abstract: The invention relates to a heat exchanger, particularly for a motor vehicle, comprising at least one duct (24-29) through which a fluid flows and of which at least some section have a curved shape. Preferably, said heat exchanger comprises several ducts through which a fluid flows and of which at least some sections have a curved shape. In order to increase the heat exchanging capacity, the duct (24-29) of which at least some sections have a curved shape is provided inside a profiled extruded element.