Patent ID: 8931305
Filing Date: 2015-01-13
Classification: F25B,F28D

Abstract:
1. An evaporator unit comprising: an evaporator defining a refrigerant flow passage, an inlet port of the refrigerant flow passage and an outlet port of the refrigerant flow passage; an internal heat exchanger defining a high pressure flow passage into which high pressure refrigerant flows, and a low pressure flow passage into which low pressure refrigerant from the outlet port of the evaporator flows; and an expansion device connected downstream of the high pressure flow passage of the internal heat exchanger and upstream of the inlet port of the evaporator, wherein the internal heat exchanger and the evaporator are integrated to create one assembly; wherein the evaporator comprises a first tank, a second tank, and a plurality of tubes which interconnect the first tank and the second tank; the plurality of tubes define a heat exchange surface along their longitudinal length; the internal heat exchanger is attached to a side surface of the evaporator, the side surface of the evaporator is perpendicular to the heat exchange surface; and the internal heat exchanger resides over the first tank and the second tank.