Patent ID: 8555954

Claim:
A heat exchanger comprising: at least one first plate having a first channel defined therein having an inlet and an outlet, wherein the first channel is defined by a first section for carrying a cooling fluid, a second section where the fluid is expanded, and a third section carrying the expanded fluid, wherein the first and third section of the first channel are in a heat exchange region and the second section of the first channel is in an expansion region, and at least one insulating channel, wherein the insulating channel follows a path substantially parallel to the second section of the first channel, the insulating channel is disposed between the second section of the first channel and the heat exchange region; a second channel defined in the at least one plate having a second channel inlet and a second channel outlet, wherein the second channel is in fluid isolation from the first channel, and is substantially parallel to the third section of the first channel, wherein the third section of the first channel provides cooling to both the first section of the first channel and the second channel; an expansion device disposed within the second section of the first channel; and a cover plate.