Low-NO.sub.x gas burner
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United States of America Patent
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Nov 29, 1994
Grant Date -
N/A
app pub date -
Jul 15, 1992
filing date -
Jul 5, 1991
priority date (Note) -
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Abstract
A fuel-lean mixture burns in rows of flame ports each located between a pair of rows of flame ports burning a fuel-rich mixture. The fuel-rich flames support and stabilize the fuel-lean flames to stabilize combustion and to avoid flame liftoff and noise. The fuel-lean flames reduce the temperature of the overall flame, and thereby reduce the production of No.sub.x compounds produced by the burner. Stepwise and proportional burner control techniques are disclosed.
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