Patent ID: 7779648

Claim:
A heat exchanger, comprising: a substantially solid body having a volume; a plurality of first individually self-contained air-conducting passageways within said solid body extending between a plurality of respective air inlets and a plurality of respective air outlets, at least two of said first passageways having different relative extents of travel between their respective inlets and outlets; a plurality of second individually self-contained refrigerant-conducting passageways within said body extending between a plurality of respective refrigerant inlets and a plurality of respective refrigerant outlets; an air moving device having a plurality of inlets and outlets connected respectively to said air-conducting passageways to thereby move air through said air-moving device from the respective passageway inlets to the respective passageway outlets; a plurality of said first air-conducting passageways being oriented non-parallel to each other and a plurality of said second refrigerant passageways being oriented non-parallel to each other; and wherein said solid body comprises more than two layers of thermally conductive material each having geometrically planar faces extending from one edge to an opposite edge of the layer, said layers being stacked one against another with adjacent planar faces in abutment to thereby form said solid body, individual ones of said layers having openings extending transversely therethrough from one planar face thereof to the opposite planar face thereof, the openings in the layers being aligned with openings in adjacent layers to form said first passageways.