This air-conditioning unit includes a heat exchanger that exchanges heat between air and a coolant, a blower, and an air outflow part. The heat exchanger includes a plurality of tubes in which the coolant flows, an inlet header, an outlet header, and a fin. The inlet header includes: a low-temperature-side coolant inflow part into which coolant that has a relatively low temperature can flow; and a high-temperature-side coolant inflow part into which coolant that has a relatively high temperature can flow. The low-temperature-side coolant inflow part and the high-temperature-side coolant inflow part are offset from each other in the direction of the flow of air that passes through the heat exchanger and in an intersecting direction that intersects the direction of the flow of air.

The invention relates to a heat exchanger assembly with at least one multi-pass heat exchanger, comprising a first distributor (1) with a first connection part (1a) for connecting to a fluid line (9), a second distributor (2) with a second connection part (2a) for connecting to a fluid line (9), and at least one first deflection distributor (4), as well as a plurality of tube lines (5) through which a fluid, in particular water, can flow, wherein the first distributor (1) and the second distributor (2) are arranged at one end (A) of the heat exchanger assembly, the deflection distributor (4) is arranged at the opposite end (B) and the tube lines (5) extend from the one end (A) to the opposite end (B), and wherein the first connection part (1a) is arranged at a lowest point (T) or at least near to the lowest point (T) of the first distributor (1) and the second connection piece (2a) is arranged at a lowest point (T) or at least near to the lowest point (T) of the second distributor (2). In order to allow for the heat exchanger assembly to be quickly filled with the fluid and quickly emptied, a third connection part (3) is arranged on the first distributor (1) and/or on the second distributor (2) at a highest point (H) or at least near to the highest point (H) of the respective distributor (1 or 2), and at least one ventilation opening (10) is provided at a highest point (T) or at least near to the highest point (T) of the deflection distributor (4) for pressure equalisation with the environment.

A heat exchanger includes a plurality of members made of aluminum or aluminum alloy, and a bundling component. The bundling component includes a main body portion having an anchoring portion, and a band portion extending from the main body portion and having a section on an opposite side of a main body portion side anchored in the anchoring portion. The bundling component is made of aluminum or aluminum alloy. At least part of the bundling component and at least part of the plurality of members are secured to each other with a brazing material interposed between the parts.

The present teachings provide for a heat exchanger assembly including a shroud, a heat exchanger, a pin, and a bead. The shroud can include a body and a first mount. The body can define a first aperture and a second aperture that can be fluidly coupled to the first aperture. The first mount can define a first surface. The heat exchanger can include a platform that can define a second surface. The pin can be fixedly coupled to and extend outwardly from one of the first or second surfaces and can be received in an aperture that is defined by the other of the first or second surfaces. The bead can be fixedly coupled to and extend from one of the first or second surfaces. The bead can be disposed about the aperture and compressed between the first and second surfaces.

A cooling module including a first heat exchanger cooling a first heat exchange medium, a second heat exchanger cooling a second heat exchange medium, a third heat exchanger cooling a third heat exchange medium, and a fan and shroud assembly arranged in parallel in an air flow direction, wherein a flow of the first heat exchange medium inside first tubes forming the first heat exchanger is perpendicular to a flow of the second heat exchange medium inside second tubes forming the second heat exchanger and parallel with a flow of the third heat exchange medium inside third tubes forming the third heat exchanger. The cooling module capable of sufficiently securing the first heat exchange medium condensing performance, the third heat exchange medium cooling performance, and the second heat exchange medium cooling performance and being miniaturized.

An adaptive heat dissipation apparatus is provided, including two or more chamber walls forming a chamber volume having a first open side and a second open side, a heat source positioned at the first open side of the chamber volume, a heat conducting surface positioned at the second open side of the chamber volume, and a thermally-expansive material occupying a predetermined portion of the chamber volume. The thermally-expansive material expands to substantially fill the chamber volume at an ambient temperature above a predetermined temperature threshold and conducts heat from the heat source to the heat conducting surface. The thermally-expansive material contracts to leave an air gap when the ambient temperature is below the predetermined temperature threshold.

An adaptive heat dissipation apparatus is provided, including two or more chamber walls forming a chamber volume having a first open side and a second open side, a heat source positioned at the first open side of the chamber volume, a heat conducting surface positioned at the second open side of the chamber volume, and a thermally-expansive material occupying a predetermined portion of the chamber volume. The thermally-expansive material expands to substantially fill the chamber volume at an ambient temperature above a predetermined temperature threshold and conducts heat from the heat source to the heat conducting surface. The thermally-expansive material contracts to leave an air gap when the ambient temperature is below the predetermined temperature threshold.

Heat transfer systems, methods and compositions which utilize a heat transfer fluid comprising: (a) from about 30% to about 65% by weight of HFC-134a; (b) from about 0% to about 70% by weight of HFO1234ze; and (c) from about 0% to about 70% by weight of HFO-1234yf, provided that the amount of HFO-1234ze and HFO-1234yf in the composition together is at least about 35% by weight, with the weight percent being based on the total of the components (a)-(c) in the composition.

Heat transfer systems, methods and compositions which utilize a heat transfer fluid comprising: (a) from about 30% to about 65% by weight of HFC-134a; (b) from about 0% to about 70% by weight of HFO1234ze; and (c) from about 0% to about 70% by weight of HFO-1234yf, provided that the amount of HFO-1234ze and HFO-1234yf in the composition together is at least about 35% by weight, with the weight percent being based on the total of the components (a)-(c) in the composition.

The invention relates to a radiator (1, 11) with a heating water duct system, within which heating water is able to be transported from a heating water intake (3, 15) to a heating water outlet (4, 16), wherein the heating water duct system comprises: heating segments (5,6,12,13,14) with respectively an internal cavity for receiving heating water, which in a ready-to-operate state of the radiator (1, 11) are arranged over one another in gravitation direction, and which respectively have an inlet opening for the supply of heating water and an outlet opening for the removal of heating water; a connecting pipe (7, 17), which connects the outlet opening of a first heating segment (5, 12) with the inlet opening of a second heating segment (6, 13);
wherein the heating water inlet (3, 15) is connected to the inlet opening of the first heating segment (5, 12), and wherein the second heating segment (6, 13) in the ready-to-operate state of the radiator (1, 11), viewed in gravitation direction, is arranged above the first heating segment (5, 12).