A heat exchanger includes a plurality of heat transfer tubes housed in a predetermined case, a connecting tube body for connecting the plurality of heat transfer tubes, a predetermined tube expansion portion provided on each heat transfer tube, a first peripheral wall portion provided on the tube expansion portion, and a second peripheral wall portion that is positioned on an end portion of the connecting tube body and fitted to the tube expansion portion, wherein the first and second peripheral wall portions have different sectional shapes and are fitted together in a partial contact state including predetermined contact and non-contact portions. According to this configuration, the heat transfer tubes can be fixed to a side wall portion of the case and the connecting tube body can be connected to the heat transfer tubes easily and appropriately.

A heat exchanger for an internal combustion engine transfers heat between fluids and includes a housing having a housing wall and a housing interior bordered at least in regions by the housing wall. The housing interior has a fluid inlet region for introducing a first fluid of the fluids into the housing interior and a fluid outlet region for discharging the first fluid out of the housing interior. The heat exchanger has at least two partition walls, which are at least substantially accommodated in the housing interior and connected to the housing wall of the housing at at least one connection region. The partition walls border at least regions of a fluid receiving chamber, through which a second fluid of the fluids can flow, in order to separate the fluids from one another. The partition walls are connected to one another at least at a joining region associated with the fluid inlet region and adjacent to the fluid receiving chamber in a main fluid flow direction of the first fluid. The partition walls also have a deformation, at least in a joining sub-region of the joining region spaced apart from the connection region, which is provided to at least reduce mechanical tension in the at least one connection region due to a temperature-dependent change in length of the joining region.

The main object of the invention is a heat exchanger including a first header plate of an inlet manifold, a second header plate of a distribution header and a heat exchange core bundle extending between the first header plate and the second header plate along a longitudinal direction, the heat exchange core bundle being defined by a shell and having a plurality of tubes arranged successively next to each other in a transverse direction, each tube being capable of cooperating with the header plates via through-holes formed in each plate. The shell has at least one longitudinal end with a straight edge configured to be in flat surface contact with at least one header plate in a contact area, the surface contact occurring mainly in a plane perpendicular to the longitudinal direction.

A header plate includes slots to receive heat exchange tubes of a heat exchanger. Each slot includes a lip extending in a direction of the tubes. Each slot has straight sides and corners. At least two tabs extend from each lip. One tab is on one side of each lip, and another tab is on an opposite side of each lip. Tabs are absent from the corners of the lip. Each tab is turned out from the lip so that the tabs on the lip act as a lead in for a tube entering the slot. Each slot has two long sides opposite one another. At least one tab is on each long side of the lip.

The present disclosure relates to a heat exchanger including a plurality of fluid guiding metal pipes (2) having pipe ends (3) arranged side by side at intervals, at least one pipe bottom (4) made of plastic and having receiving through-holes (5) in which the pipe ends (3) may be received, and a collection box (6) made of plastic and which may be connected to the pipe bottom (4) by a locking device formed between the pipe bottom and the collection box, wherein a seal (9) may be inserted between the pipe bottom (4) and the collection box (6), and the seal ensures press-fit of the pipe bottom (4) on the pipe ends (3) and seals the collection box (6) against the pipe bottom (4) and the pipe bottom (4) against the pipe ends (3).

A radiator includes a tube that has a flattened-shape, the tube including an internal flow channel that allows a coolant to flow through the internal flow channel; and a tank that includes an insertion port into which a joint end portion of the tube is inserted so that the tank and the tube are joined to each other, wherein the tube includes an outer-peripheral-wall extending in a direction perpendicular to a thickness direction of the tube, and bend depressions that are bent toward the internal flow channel in a concave shape are formed in at least a region of the outer-peripheral-wall adjacent to the joint end portion, the bend depressions extending along the internal flow channel, and the bend depressions are deformed in a width direction of the tube so that the width of the joint end portion is the same as the width of the insertion port.

A manifold for a heat exchanger assembly includes a body with a first end disposed opposite a second end, and a top surface disposed opposite a bottom surface. A first side surface extends between the top and bottom surfaces, and a second side surface extends between the top and bottom surfaces opposite the first side surface. A first plurality of chambers is formed in the body with each chamber of the first plurality of chambers being spaced apart from one another between the first end and the second end of the body. A second plurality of chambers is formed in the body with each chamber of the second plurality of chambers being spaced apart from one another between the first end and the second end of the body.

A refrigerator includes a cabinet that defines a storage space and a machine compartment that accommodates a compressor, a blow fan, and a condenser. The condenser is curved along front, rear, and side surfaces of the machine compartment. The condenser includes a first header disposed at a first end of the condenser, a second header disposed at a second end of the condenser, tubes that connect the first header and the second header to each other, heat exchange fins disposed the tubes, an input connection portion that extends from the first header toward the second header and is configured to supply refrigerant to the first header, and an output connection portion that extends from the first header toward the second header and is spaced apart from the input connection portion. The output connection portion is configured to receive the refrigerant discharged from the first header.

In a heat exchanger with double-walled tubes, an end junction between inner tube and outer tube comprises an end plate in which there is a seat in which an end portion of the inner tube is housed. The corresponding outer tube is peripherally fixed sealingly around the opening of the seat and a deflector extends the inner wall of the outer tube inside the seat so as to define a toroidal cavity between the deflector and a side wall of the seat. The seat is closed by a bottom which is opposite to the opening of the seat and which has a passage connected sealingly to the end of the inner tube in the seat for the transit of the fluid to be cooled. A radial space is present near the said bottom between the toroidal cavity and internal cavity of the double-walled tube, and the end plate has at least one conduit which emerges inside the toroidal cavity for the inflow or outflow of the cooling fluid. In this way a junction and an exchanger with such a junction which are robust and have innovative performance features may be provided.

A collector tube for a heat exchanger having at least one flat tube, may include a base and a cover arranged opposite the base. The base and the cover may define a longitudinal duct. The base may include at least one passage having an opening configured to accommodate the at least one flat tube of the heat exchanger. The opening may have at least one wide edge and at least one narrow edge. The longitudinal duct may have, in a cross section, a diameter that is smaller than the at least one wide edge of the opening. The at least one passage may include a collar extending away from the longitudinal duct.