Compact and Efficient Heat Exchanger, Furnace, HVAC Unit, Building, and Method of Making
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United States of America Patent
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N/A
Issued Date -
May 20, 2010
app pub date -
Nov 14, 2008
filing date -
Nov 14, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Compact and efficient apparatuses for transferring heat, heat exchangers, and furnaces, as well as HVAC units, HVAC systems, and buildings therewith, plus methods of making such devices. Furnace heat exchangers, for example, have an added stage, added in an unconventional way, that improves efficiency without unduly increasing size, while maintaining required radiuses of bends in tubing. Various embodiments orient bends at particular angles to allow stages to fit together more closely, provide improved structure for connecting stages using two collectors that seal against a common junction plate, provide for indoor air passing through the heat exchanger to pass through different passes of the heat exchanger in an unconventional order in order to provide greater compactness, or a combination thereof, as examples.
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