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AssigneeNordyne, Inc.
InventorsALLAN J. REIFEL, Russell W. Hoeffken
Estimating the term…
HVAC units and systems, air conditioning units, and heat pumps that have micro-channel heat exchangers wherein fins are slanted, multi-tubes are oriented non-horizontally (e.g., vertically), or both, for example. Fins may be slanted downward in the direction of air flow to facilitate drainage of condensation, or may be slanted either downward or upward as appropriate to reduce air-flow restriction. Other embodiments include the heat exchangers themselves and buildings having such heat exchangers, units, or systems, as well as methods concerning such devices, such as methods of manufacture. In some embodiments, heat exchangers are used as evaporators in air conditioning units, as condensers in heat pumps, or both, as examples.
An HVAC unit having at least one heat exchanger having a predominant air-flow direction, the heat exchanger comprising a first refrigerant header tube and a second refrigerant header tube, multiple parallel multi-tubes extending from the first refrigerant header tube to the second refrigerant header tube, the multi-tubes being parallel to each other geometrically and arranged in parallel with respect to flow of the refrigerant, each multi-tube having multiple contiguous parallel refrigerant passageways therethrough arranged in at least one row, and wherein each heat exchanger module includes multiple fins between the multi-tubes, wherein the fins are bonded to the multi-tubes;
A heat exchanger for transferring heat from air to a working fluid, wherein the air may contain moisture, the heat exchanger comprising:
A method of making an HVAC unit having reduced air flow restriction, the method comprising in any order at least the acts of:
Dependencies are inferred from the claim text.