ECONOMIZER
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United States of America Patent
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Issued Date -
May 2, 2013
app pub date -
Oct 25, 2012
filing date -
Oct 27, 2011
priority date (Note) -
Abandoned
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Abstract
Disclosed is an economizer including a plurality of coil stacks. Each coil stack includes a tube coiled such that adjacent layers of the tube contact one another in a radial direction. Further, the coil stacks are axially spaced from one another to allow exhaust to flow between adjacent coil stacks.
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