Dual-purpose combuster for ordinary combustion and pulse combustion
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United States of America Patent
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Aug 17, 1999
Grant Date -
N/A
app pub date -
Nov 13, 1997
filing date -
Jun 19, 1997
priority date (Note) -
Expired
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Abstract
A dual-purpose combustor for ordinary combustion and pulse combustion especially suited to be installed for a spray dryer, which is used not only as an ordinary combustion gas generator but also as a pulse combustion gas generator capable of generating high frequency sound waves and hot blast in large capacity to enhance the drying efficiency. The dual-purpose combustor is composed essentially of successionally connected chambers: a concentric narrow ring form fuel/combustion air mixed gas supply slit, a concentric wider ring form combustion chamber having an ignition means and a narrow outlet portion, a concentric narrow ring form exhaust gas chamber, a concentric wider ring form upper secondary combustion chamber, and a concentric cylindrical form lower secondary combustion chamber having the same diameter with the outer diameter of the concentric ring form upper secondary combustion chamber.
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