Abstract: 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.

Abstract: 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.

Abstract: The invention relates to an air-conditioning system, in particular for a motor vehicle, in which a fan takes in air which flows through an evaporator and/or a heater, wherein the fan has arranged downstream of it an air-bypass channel, which contains a bypass damper and guides air past the evaporator. In the case of an air-conditioning system in which the air-mass flow which flows through the air-bypass channel and/or evaporator can be adjusted in a particularly variable manner, an air-throttle element is arranged in and/or on the air-bypass channel and/or upstream or downstream of the evaporator.

Abstract: The invention relates to an air-conditioning system, in particular for a motor vehicle, in which a fan takes in air which flows through an evaporator and/or a heater, wherein the fan has arranged downstream of it an air-bypass channel, which contains a bypass damper and guides air past the evaporator. In the case of an air-conditioning system in which the air-mass flow which flows through the air-bypass channel and/or evaporator can be adjusted in a particularly variable manner, an air-throttle element is arranged in and/or on the air-bypass channel and/or upstream or downstream of the evaporator.

Abstract: The invention relates to a heater or air conditioner comprising a mixing zone (M1) in which cold and hot air discharged from a cold air duct (K) and a hot air duct (W), respectively, are mixed. At least one second mixing zone (M2) is provided which is disposed downstream of the first mixing zone (M1) in the direction of air flow and to which cold and/or hot air can be delivered directly via a duct (K3; K3?; K3?) while the first mixing zone (M1) is bypassed. Also disclosed is a method for mixing air.

Abstract: The invention is directed to a heat exchanger (10) having a block (2) which includes a plurality of tubes (11) for conducting a fluid therethrough. The heat exchanger also includes a collector (5) having a tube base (4). The tubes have tube end sections (11) and the tubes are inserted into the tube base so that the end sections are accommodated therein and extend into the collector to an insertion depth (x). The insertion depth (x) of the end sections (11a) is variable. The heat exchanger is preferably used as an evaporator in climate control systems for motor vehicles.

Abstract: An air control door with stratification feature is provided. The door includes a mixing section comprised of air guides that define spaced apart air passages. In a mixed mode application, where mixing of both hot and cold air streams is desired, the air control door directs the two air streams into each other, thereby promoting mixing of such air streams and reducing air stratification. By integrating a mixing section with the air control door, the present invention reduces the size, number and complexity of components required to reduce air stratification to an acceptable level.

Abstract: An electrohydrodynamic induction pumping thermal energy transfer system includes an outer conduit and a plurality of inner conduits disposed within the outer conduit. The system also includes a plurality of conductors disposed about a first surface of at least one of the inner conduits. The plurality of conductors is disposed in a spaced apart relationship to each other and extends longitudinally along the inner conduit. The system further includes a power supply coupled to the plurality of conductors. The power supply is operable to induce an electric traveling wave along the first surface of the inner conduit to enhance thermal energy transfer between a fluid disposed within the outer conduit and the inner conduit by inducing longitudinal pumping of a liquid phase of the fluid in contact with the first surface of the inner conduit along the first surface of the inner conduit.