Heat exchanger apparatus
AssigneeInternational Environmental Manufacturing Co.
InventorArthur L. Alford
Life of this patent
Estimating the term…
Abstract
An improved heat exchanger apparatus that serves alternatively as an evaporator and as a condenser, the heat exchanger apparatus comprising a frame and a heat exchange coil supported by the frame, the coil having a first coil end portion, a coil medial portion and a second coil end portion. The coil passes sinuously between ends of the frame such that the first coil end portion and the second coil end portion are disposed in the first coil row that is first contacted by air blown through the exchanger, and the coil medial portion is disposed to pass sinuously in subsequent coil rows so that approximately one half of the coil medial portion passes in co-flow heat exchange relationship to the air and approximately one half of the coil medial portion passes in counter-flow heat exchange relationship to the air.
Claims3
In a heat pump apparatus in which a refrigerant is selectively passed in one direction and in an opposite direction through a heat exchanger having air passed therethrough, an improved heat exchanger comprising:
- a frame having an air flow channel through which the air is passed;
- and
- a heat exchange coil supported by the frame and forming a first coil row and at least one other coil row subsequent to the first coil row, the coil rows disposed in the air flow channel such that entering air first contacts the first coil row and then the subsequent coil row, the coil characterized as having a first end portion, a medial portion, and a second end portion, the first end portion and the second end portion substantially disposed in the first coil row such that the first end portion and the second end portion are each in a heat exchange relationship with air entering the air flow channel, and the medial portion substantially disposed in at least one coil row subsequent to the first coil row, one of the first and second end portions serving as the entering portion for the refrigerant flow, and the other one of the first and second end portions serving as a final heat conditioning stage for the exiting refrigerant.
Dependencies are inferred from the claim text.