The object of the invention is, among others, a heat exchanger (1) for a motor vehicle comprising: at least two manifolds (10, 20) comprising covers (11, 21) and headers (12, 22), a plurality of tubes (30) deployed in parallel to each other between the manifolds (10, 20), the tubes (30) comprising open ends received in the headers (12, 22), the length of the tubes (30) being smaller than the distance between the covers (11, 21), characterised in that, the covers (11, 21) comprise an elongated portions (13, 23) long enough to form an abutting point for one end of the tube (30), so that the second end of the tube (30) is distanced from the elongated portions (13, 23) on the opposite cover, while still maintaining fluid-tight connection with both manifolds (10, 20).

A header for a heat exchanger includes a first and a second cylindrical fluid manifold extending in parallel. Each of the first and second manifolds have tube slots that extend through an arcuate wall section of the manifold. A thickened wall section of the header having a generally triangular wall section is bounded by the first and second fluid manifolds and by a planar outer surface of the header. An aperture extends through the thickened wall section to provide a fluid communication pathway between the first and second cylindrical fluid manifolds.

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 method for making a cold plate includes the steps of positioning a finstock structure in a cavity of a substrate; and applying a cover to the finstock structure and substrate, wherein the applying step comprises ultrasonically additive manufacturing the cover to the substrate and the finstock structure, whereby the cover joins with the substrate and the finstock structure. The resulting cold plate assembly includes a substrate having a cavity, a finstock structure within the cavity, and a cover closing the finstock structure within the cavity, the cover being integrally joined to the substrate and to the finstock structure.

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 invention relates to a heat exchanger (1) comprising at least, one fluid F passage tube (7) and at least one manifold (5) provided with a cover (11) closing, after assembly, a longitudinal opening (10) of a collector plate (9) cooperating with said cover (11) to form the manifold, said tube (7) being designed to form a connecting element for the exchanger and comprising an end partially crimped between said cover (11) and said collector plate (9) at a passage orifice (17) for said fluid F in the manifold.

A heat exchanger includes a plurality of flat tubes, and a header. A flow passage provided inside the header includes a plurality of partition portions each provided between the adjacent flat tubes, a plurality of insertion portions formed between the adjacent partition portions, a first communication passage allowing one ends of the adjacent insertion portions to communicate with each other, and a second communication passage allowing an other ends of the adjacent insertion portions to communicate with each other. A cross-sectional area of the first communication passage is larger than a cross-sectional area of the second communication passage, and the first communication passage is provided with a first refrigerant inlet connected to the flow passage and allowing the refrigerant to flow into the header. Thus, a heat exchanger performance can be improved by reducing a refrigerant pressure loss and by achieving uniform distribution of the refrigerant.

A tube sheet for a thermal transfer device can include a body having a plurality of apertures that traverse therethrough, where the plurality of apertures are configured to receive a plurality of tubes of the thermal transfer device. The tube sheet can also include an outer perimeter defining the body, where the outer perimeter has at least one first recess feature disposed therein. The at least one first recess feature can have a first shape and a first size, where the first shape is any shape aside from a semi-circle.

A method for assembling a heat exchanger device of a refrigeration unit may include pushing a heat exchanger coil of the heat exchanger device over a refrigerant collecting vessel of the heat exchanger device. The method may also include fluidically connecting the heat exchanger coil to the at least one cover of the heat exchanger device. The method may further include pushing a tubular casing of the heat exchanger device over the heat exchanger coil, and deforming the tubular casing radially inward.

Cooling performance is secured by reducing a compression loss when a high-pressure gas refrigerant is allowed to flow without heat exchange on cooling in a vehicle interior heat exchanger. In the vehicle interior heat exchanger, an upstream header and a downstream header are communicated and connected with the same end side of the refrigerant circulation tubes of an upstream tube group and a downstream tube group where the refrigerant circulation tubes are stacked. Internal spaces of the upstream header and the downstream header are communicated and connected with each other via communication holes in the boss portions of the connecting member. In the vehicle interior heat exchanger, the total opening area of the communication holes is set such that the percentage thereof, with respect to the total opening area of the channel on the uppermost stream side of the upstream tube group, is in the range of 38% to 93%.