Abstract: A heat exchanger having a heat exchanger core having at least two rows of tube and fin blocks, each tube and fin block contains an assembly of tubes and fins, wherein the tubes are aligned parallel to each other while the fins are located between adjacent tubes, each tube having a first tube end and a second tube end, each tube and fin block of the first tube and fin block and the second tube and fin block having a manifold tube, the manifold tubes having a row of openings for a fluid tight connection with tubes of a tube and fin block, wherein the first tube ends of the first tube and fin block are fluid tight connected to the openings of a first manifold and the first tube ends of the second tube and fin block are fluid tight connected to the openings of a second manifold.

Abstract: An evaporator for an air conditioning system includes an inlet manifold, an outlet manifold and a plurality of refrigerant tubes. The refrigerant tubes hydraulically communicate with the inlet manifold and the outlet manifold for a refrigerant flow. The inlet manifold includes a distributor tube with a plurality of orifices for equally aliquoting two phase refrigerant inside the inlet manifold. A mandrel is provided inside the distributor tube and a portion of the distributor tube with the inserted mandrel is flattened and bent toward an inlet port of the distributor tube for fitting the distributor tube within the inlet manifold. The mandrel is inserted into the distributor tube for preventing the distributor tube from collapsing when the distributor tube is flattened and bent.

Abstract: An evaporator for an air conditioning system includes an inlet manifold, an outlet manifold and a plurality of refrigerant tubes. The refrigerant tubes hydraulically communicate with the inlet manifold and the outlet manifold for a refrigerant flow. The inlet manifold includes a distributor tube with a plurality of orifices for equally aliquoting two phase refrigerant inside the inlet manifold. A mandrel is provided inside the distributor tube and a portion of the distributor tube with the inserted mandrel is flattened and bent toward an inlet port of the distributor tube for fitting the distributor tube within the inlet manifold. The mandrel is inserted into the distributor tube for preventing the distributor tube from collapsing when the distributor tube is flattened and bent.

Abstract: A heat exchanger includes a header and a plurality of tubes. The header is configured to contain refrigerant and provide an inlet for the heat exchanger. The plurality of tubes extends away from and is fluidicly coupled to the header. The header includes an upper shell and a lower shell configured to form the header when attached together. The upper shell and the lower shell cooperate to define a manifold portion fluidicly coupled to the inlet, a lanced portion spaced apart from the manifold portion and fluidicly coupled to the plurality of tubes, and a distribution portion configured fluidicly couple the manifold portion to the lanced portion.