초록 ▼

Extreme compactness is achieved in a combined evaporator 22 and suction line heat exchanger 20 through the use of a first, elongated, flattened, multi-port tube 34 having a major dimension D.sub.M, a minor dimension d.sub.m measured transverse to the major dimension D.sub.M and opposed ends 38, 42.

Extreme compactness is achieved in a combined evaporator 22 and suction line heat exchanger 20 through the use of a first, elongated, flattened, multi-port tube 34 having a major dimension D.sub.M, a minor dimension d.sub.m measured transverse to the major dimension D.sub.M and opposed ends 38, 42. The tube is formed in a serpentine configuration by bends 48 across the minor dimension d.sub.m with a plurality of generally parallel, spaced runs 46 extending between the ends 38, 42 to define the evaporator 22. An evaporator inlet fixture 30 is provided on one of the ends 38 and an evaporator outlet fixture 32 is provided on the other end 42. Fins 50 extend between adjacent ones of the runs 46. A second, elongated, flattened, multiport tube 70 having a length that is a minor fraction of that of the first tube includes opposed ends 72, 74 a major dimension D.sub.M, and a minor dimension d.sub.m measured transverse to the major dimension D.sub.M. The second tube, along a side wall substantially defining the major dimension D.sub.M is bonded to a corresponding side wall of the first tube 34 at a location 58 immediately upstream of the outlet fixture 32 to be in good heat exchange relation therewith to define a heat exchange suction line heat exchanger integral with the evaporator 22.

대표청구항 ▼

[ What is claimed is:] [1.] 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, sai

[ What is claimed is:] [1.] 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.