A microchannel evaporator includes a plurality of microchannels. Each of the plurality of microchannels includes a first end and a second end. A first end-tank is coupled to each first end of the plurality of microchannels and a second end-tank is coupled to each second end of the plurality of microchannels. An inlet is coupled to the first end-tank for receiving a fluid into the microchannel evaporator and an outlet is coupled to the second end-tank for expelling the fluid from the microchannel evaporator. Each microchannel of the plurality of microchannels is substantially U-shaped.

A multi-slab microchannel heat exchanger is disclosed. The heat exchanger includes a first slab having a first inlet header and a first outlet header, a second slab including a second inlet header and a second outlet header, a first inlet connector fluidly connected to the first inlet header, a first outlet connector fluidly connected to the first outlet header, a second inlet connector fluidly connected to the second inlet header, and a second outlet connector fluidly connected to the second outlet header. The first slab and the second slab are arranged successively in a direction along a length of the heat exchanger. The first inlet connector, the first outlet connector, the second inlet connector, and the second outlet connector are disposed at a same end of the heat exchanger.

A heat exchanger includes an inlet manifold and an outlet manifold. A plurality of heat exchanger tubes are in fluid communication with the inlet manifold at a first end portion and the outlet manifold at a second end portion. The outlet manifold fluidly connects outlets on each of the plurality of heat exchanger tubes. A plurality of fluid conduits are in fluid communication with and extending from the outlet manifold. The plurality of fluid conduits are longitudinally spaced along the outlet manifold and are in fluid communication with a common outlet.

A device is configured for opening a heat exchanger core from a U-shape to a V-shape. Such heat exchanger core has a plurality of parallel flat tubes, each having two ends; and two manifolds. Each of the flat tubes has two straight sections adjacent to the manifolds and an intermediate bent section. The device has two hinged frames, a respective clamp arrangement on each of the hinged frames for holding the two manifolds, and a trough shaped support for the intermediate portion. For opening the U-shaped heat exchanger core, the heat exchanger core is inserted into the device, and the two manifolds are secured with the clamp arrangements. The clamp arrangements are separated from one another by pivoting apart the two hinged frames, on which the clamps are mounted. Simultaneously, the intermediate bent section is pushed toward the trough adapted to provide a desired curvature to the intermediate section.

A microchannel evaporator includes a plurality of microchannels. Each of the plurality of microchannels includes a first end and a second end. A first end-tank is coupled to each first end of the plurality of microchannels and a second end-tank is coupled to each second end of the plurality of microchannels. A second-fluid inlet is coupled to either the first end-tank or the second end-tank and configured to receive a fluid into the microchannel evaporator and a second-fluid outlet is coupled to either the first end-tank or the second end-tank and configured to expel the fluid from the microchannel evaporator. Each microchannel of the plurality of microchannels includes at least one bend along a length thereof.

A heat exchanger includes a plurality of heat exchange tube segments defining a plurality of fluid pathways therein and a bend formed in the plurality of heat exchange tube segments defining a first leg of the heat exchanger positioned at a first side of the bend, and a second leg of the heat exchanger positioned at a second side of the bend opposite the first side. The heat exchanger is positioned relative to a flow direction of an incoming airflow such that the bend is closer to a source of the incoming airflow than the first leg and the second leg.

A collector tube for a heat exchanger, which may have at least one flat tube, may include a base and a cover arranged opposite one another and embodying a longitudinal duct. The base may have at least one passage having an opening for accommodating the at least one flat tube of the heat exchanger. The at least one passage may have a collar, which may extend away from the longitudinal duct. The cover may have at least one notch, which may be located opposite the at least one passage and which may be embodied for accommodating a subarea of the at least one flat tube.

A double-row bent heat exchanger is provided. The heat exchanger includes: a first header and a second header; flat tubes each divided into a first straight segment connected to the first header, a second straight segment connected to the second header and a twisted segment connected between the first straight segment and the second straight segment, along a length direction of the flat tube; and fins disposed between adjacent first straight segments and between adjacent second straight segments. The flat tube is bent at the twisted segment around a first bending axis (L) to provide a first bending portion. The first header and the second header are bent around at least one second bending axis (K) to provide at least one second bending portion.

A heat exchanger includes a plurality of heat ex-change tube segments defining a plurality of fluid pathways therein and a plurality of fins disposed between adjacent heat exchange tube segments of the plurality of heat exchange tube segments. A bend is formed in the plurality of heat exchange tube segments defining a first portion of the heat exchanger located at a first side of the bend, and a second portion of the heat exchanger located at a second side of the bend opposite the first side. A support is positioned at or near the bend, the support including and includes a support base and at least one support finger extending from the support base and into a gap between adjacent heat exchange tube segments of the plurality of heat exchange tube segments.

A radiator includes an upper tank and a lower tank for storing cooling water, and a core for connecting the upper tank and the lower tank to each other, the core including a plurality of cooling water pipes for flowing the cooling water between the upper tank and the lower tank, and a plurality of fins that are extended between the plurality of cooling water pipes and promote heat dissipation from the cooling water pipes, in which a recess is provided at least on a back surface which is provided to the core and where air flows.