The present invention discloses a novel micro-channel heat exchanger, comprising header pipes, a plurality of first flat pipes and fins, and further comprising a bending region formed by bending the header pipes, wherein second flat pipes and a bending assembly are provided in the bending region, the second flat pipes are connected between adjacent header pipes, the bending assembly is distributed between adjacent second flat pipes, and air is capable of passing through the bending assembly to circulate. On the premise that the performance of the heat exchanger is guaranteed, the present invention well solves the problem of fin deformation caused when the heat exchanger is bent along a length direction of the header pipes.

A heat exchanger includes a plurality of first and second fluid passages. The first fluid passages are defined by a pair of opposing first fluid passage walls and a plurality of first fluid diverters disposed between the first fluid passages walls. The second fluid passages are defined by a pair of opposing second fluid passage walls and a plurality of second fluid diverters disposed between the second fluid passage walls. The second fluid diverters include a body portion and a leading edge portion. The first fluid passage walls form a first fluid leading edge that extends upstream of the leading edge portion of the second fluid diverters. The second fluid passages extend in a direction perpendicular to the direction of the first fluid passages.

Plate-like fins have notches longer than a longitudinal axis of flat tubes that are placed in the notches. The plate-like fins also have bend portions that are located on projections projecting toward the edges more than the ends of the flat tubes, are formed by bending part of the plate-like fins, erect in a stacking direction in which the plate-like fins are stacked, and are in contact with adjacent ones of the plate-like fins. The height of the bend portions in the stacking direction is the length of a predetermined spacing.

A fluid circuit of a heat exchanger includes a core and a first header. The core is configured to receive a fluid and includes a plurality of conduits. Each of the plurality of conduits extends along a longitudinal axis from a first end portion to a second end portion. The first header is integrally formed with and fluidly connecting the plurality of conduits. Outer walls of the plurality of conduits taper outward relative to the longitudinal axes to join the first header.

The invention relates to a plate-shaped heat exchanger for a cooling device comprising at least one heat exchanger package, in particular for a motor vehicle, consisting of a plurality of openings for accommodating a pipe conducting a coolant, wherein each opening is surrounded by an passage and a plurality of projections are distributed between the passages for the heat exchange with the medium to be cooled. In order to allow a high performance increase of a cooling device, yet a low increase in pressure loss of the charge air, a plurality of projections are arranged around an passage, wherein the projections have a shape that assures deliberate heat conduction from the projections to the passage.

An aluminum alloy has high thermal conductivity without requiring an addition of metal elements such as iron and a method for producing the aluminum alloy. The aluminum alloy is obtained from a semi-solid material with a chemical composition containing 2 to 6 wt % of silicon (Si) and 0.7 wt % or less of magnesium (Mg), with the balance being aluminum (Al) and unavoidable impurities. It has a granular crystalline structure. The aluminum alloy is produced by a heating step of semi-solid material. A forming step is performed with semi-solid material obtained in the heating step S1. After the forming step, a heat treatment step is performed at 190 C. to 290 C. for 1 to 5 hours.

A thermal module includes a radiating fin unit having a plurality of superposed radiating fin assemblies, and a plurality of groups of heat pipes. The heat pipes respectively have a heat absorbing section and a heat dissipating section formed at two opposite ends thereof. The heat absorbing sections in each heat pipe group is in contact with a heat source, and the heat dissipating sections in the same heat pipe group is sandwiched between two adjacent ones of the radiating fin assemblies. The thermal module is characterized in that the heat dissipating sections are horizontally extended through the radiating fin assemblies from one of two opposite shorter sides to another shorter side along two parallel longer sides thereof, such that the heat dissipating sections not only have a maximum contact area with the radiating fin assemblies, but also give the radiating fin unit an enhanced structural strength.

In an embodiment, a heat exchanger includes a monolithic body that includes a first substrate, a second substrate, a third substrate, and a plurality of partial height fins. The second substrate is arranged parallel to and spaced from the first substrate, thereby defining a first fluid flow path. The third substrate is arranged parallel to and spaced from the second substrate opposite the first substrate, thereby defining a second fluid flow path. The plurality of partial height fins extend from one of the second substrate and the third substrate toward the other of the second substrate or the third substrate, wherein a terminal edge of each partial height fin is at least partially spaced from the other of the second substrate or the third substrate.

A heat exchanger for an internal combustion engine for transmitting heat between at least two fluids. The heat exchanger has at least one fluid conduit device which has a fluid conduit device wall to separate the first fluid from a second fluid. The fluid conduit device wall delimits a plurality of fluid conduits for guiding the first fluid between the fluid inlet region and the fluid outlet region at least in part, at least parts of one of the fluid conduits having an undulating shape in the longitudinal extension direction of the fluid conduit device.