A tank for a heat exchanger includes a tank member and a base member. The tank member has one of a pre-crimped tab and a slot portion on a first lateral side. The pre-crimped tab is bent outward from a longitudinal axis. The slot portion has a throughhole. The base member has the other of the pre-crimped tab and the slot portion on the first lateral side. The tank member and the base member are fitted together to define an inner cavity therebetween. The pre-crimped tab is inserted in the throughhole on the first lateral side. One of the tank member and the base member is crimped to the other of the tank member and the base member on a second lateral side.

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.

The present invention relates to a heat exchanger (1) comprising: a heat exchange core bundle (3) in which a first heat-transfer fluid circulates, at least one inlet tank (5a) or outlet tank (5b) for a second heat-transfer fluid, at least one collector (7) arranged on the periphery of the heat exchange core bundle (3) and comprising a lateral wall (75) of which at least two portions (77) are folded over so as to fix the tank (5a, 5b) by crimping against the heat exchange core bundle (3),
the lateral wall (75) following the contour of at least one corner of the heat exchange core bundle (7), said lateral wall (75) comprising, on each side of the corner, a folded-over portion (77) and comprising in the region of said corner a non-folded-over portion (79), the folded-over portions (77) being connected continuously to the non-folded over portion (79).

The invention relates to a heat exchanger including exchange components and fluid flow components (2, 2′, 3), at least one fluid collecting tank (11, 11′) into which the exchange components open out (2, 2′, 3), at least one collecting plate (10) for holding the exchange components (2, 2′, 3) and a housing (4) for accommodating the exchange components (2, 2′, 3). The exchanger is characterized in that it includes a flange (5) for fixing the collecting tank (11, 11′) on the housing (4).

Thanks to the invention, the transmission of stresses from the flange (5) to the collecting plate (10) is avoided, which means that a thinner collecting plate (10) is able to be formed.

A method of manufacturing a heat dissipating device includes steps of providing a heat dissipating fin and a heat pipe, wherein the heat dissipating fin includes a fin body, a through hole and a collar portion, the through hole is formed on the fin body, the collar portion extends from a periphery of the through hole and has a first U-shaped protruding ear, the first U-shaped protruding ear has a first opening, the heat pipe has a heat dissipating end and a heat absorbing end, and the heat dissipating end is opposite to the heat absorbing end; inserting the heat dissipating end into the through hole and the collar portion; and punching the collar portion to shrink the first opening of the first U-shaped protruding ear, such that the collar portion fixes the heat dissipating end in a tight-fitting manner.

A heat exchanger for transferring heat between a gaseous first fluid and a liquid second fluid may include a plurality of hollow pipes extending transversely through a first fluid path for conducting the first fluid. The plurality of pipes may be coupled externally to a plurality of cooling fins arranged in the first fluid path. The plurality of pipes may internally define a second fluid path for conducting the second fluid. The plurality of pipes and the plurality of cooling fins may be arranged stacked on one another in a stacking direction to define a cooler block. The cooler block may include two side parts extending along two outer sides of the cooler block facing away from one another in the stacking direction. At least one tension rod may fixedly connect the two side parts and be configured to transmit a tensile force in the stacking direction.

A heat exchanger with a heat-exchange core in which a first fluid and a second fluid circulate, at least one header tank configured to duct the second fluid from or to the heat-exchange core. The header tank has at least a shoulder oriented toward the outside of said header tank, and at least one header tank corner. At least one fastening member for fastening the header tank is positioned at least partly at the periphery of the heat-exchange core and includes at least one peripheral groove delimited by a base wall and a lateral wall and in which the shoulder of the header tank is at least partially housed. Part of the corner portion faces an upper face of the shoulder opposite to the groove of the fastening member and at a non-zero distance from this upper face so that a space is left between the corner portion and the upper face of the shoulder.

A heat exchanger includes: a header that extends in a first direction; and a plurality of heat transfer tubes that extend in a second direction crossing the first direction, each of which has one end connected to the header, and that are arranged in the first direction at intervals. The header includes: a header body having a tubular shape, a first member through which the one end of each of the heat transfer tubes extends, and a second member positioned between the header body and the first member in the second direction. The second member includes: a base portion that extends in the first direction, and a plurality of protruding portions that extend from the base portion toward the first member in the second direction.

A liquid to refrigerant heat exchanger includes a coolant volume that is at least partially defined by a plastic housing and by a metal closure plate. The plastic housing is sealingly joined to the closure plate along an outer periphery of the closure plate. The metal closure plate can be part of a brazed assembly that defines a continuous refrigerant flow path through the heat exchanger between a refrigerant inlet port and a refrigerant outlet port.

A double pipe includes an outer pipe, an inner pipe, a fin member and a sealing part. The outer pipe has a plurality of outer crimping parts projecting to an inner diameter side and aligned in at least one of a lengthwise direction and a circumference direction. The inner pipe is arranged on an interior of the outer pipe with a flow path gap being defined between the outer pipe and the inner pipe. The inner pipe has a plurality of inner crimping parts aligned in the at least one of the lengthwise direction and the circumference direction and overlapping the outer crimping parts. The fin member is arranged on the interior of the inner pipe and held by the inner crimping parts. The sealing part seals between the outer pipe and the inner pipe.