Combustion heater
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United States of America Patent
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Apr 18, 2017
Grant Date -
Mar 3, 2011
app pub date -
Jan 30, 2009
filing date -
Feb 1, 2008
priority date (Note) -
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Abstract
A combustion heater includes an inner tube having a supply passage for combustion gas in an inner portion, and an outer tube disposed to provide a separated combustion space in an outer periphery of the inner tube. A hole part for ejecting the combustion gas is formed on a tube wall of the inner tube and combustion gas is ejected with ejection characteristics such that circulating flow is formed on the periphery of a stagnation point. According to this combustion heater, a stable flame can be formed without increasing costs and the heating efficiency can be improved.
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