Asymmetric Dimple Tube for Gas Heat
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United States of America Patent
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Issued Date -
Jan 12, 2012
app pub date -
Jun 21, 2011
filing date -
Jul 6, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A heat exchanger tube for a gas furnace is provided. The heat exchanger tube may include an inlet, an outlet and one or more asymmetric dimple pairs disposed between the inlet and the outlet. The inlet and the outlet may form a passageway through the heat exchanger tube for receiving a heated combustion gas. Each asymmetric dimple pair may provide a first dimple and an opposing second dimple. The first and second dimples may be configured to at least partially constrict flow of the gas therethrough. Together, the first and second dimples may form an upstream section, a downstream section and a merge point.
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