System for preheating fuel
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United States of America Patent
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Oct 21, 1997
Grant Date -
N/A
app pub date -
Jul 3, 1995
filing date -
Jul 3, 1995
priority date (Note) -
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Abstract
A system and method for preheating a mixture of fuel and air as the mixture is introduced into a furnace combustion chamber comprises passing the mixture through a nozzle extending into an upstream portion of an opening defined in a wall enclosing the combustion chamber. The nozzle is sized so that an annular space is formed between the nozzle and the opening. Hot air is introduced through the annular space and mixes with and preheats, in a downstream portion of the opening, the mixture passing through the nozzle. The preheated mixture then passes into the furnace combustion chamber for combustion therein.
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