Patent ID: 6185957
Filing Date: 2001-02-13
Classification: B60H,F25B,F28D,F28F

Abstract:
A combined evaporator and suction line heat exchanger for use in air conditioning and refrigeration systems comprising:a first elongated, flattened, multiport tube having a major dimension, a minor dimension measured transverse to the major dimension and opposed ends, said first tube being formed in a serpentine configuration by bends across said minor dimension with a plurality of generally parallel, spaced runs between said ends defining an evaporator;a first tube inlet fixture on one of said ends;a first tube outlet fixture on the other of said ends;fins extending between adjacent ones of said runs;a second elongated, flattened, multiport tube having a length that is a minor fraction of that of said first tube, opposed ends, a major dimension and a minor dimension measured transverse to said major dimension, said second tube, along a side wall substantially defining said major dimension, being bonded to a corresponding side wall of said first tube at a location immediately upstream of said outlet fixture to be in good heat exchange relation therewith to define a suction line heat exchanger;a suction line inlet fixture on one of said second tube ends; anda suction line outlet fixture on the other of said second tube ends.