AUTO-IGNITER FOR BIOMASS FURNACE
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United States of America Patent
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Issued Date -
Oct 29, 2009
app pub date -
Feb 18, 2009
filing date -
Apr 25, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A biomass furnace (12) includes an auto-ignition system (28) for automatically resuming combustion of a biomass fuel (16) in response to sensed conditions. The auto-ignition system (28) raises the temperature of biomass fuel (16) in the combustion chamber (14), in the absence of flame or spark, by pumping superheated air into the combustion chamber (14) causing the fuel (16) to spontaneously combust. An auxiliary heat source (34) is located in a plenum (30) leading to the combustion chamber (14). A fan (32) forcibly moves air through the plenum (30), around the auxiliary heat source (34) and then into the combustion chamber (14) to initiate combustion in the absence of flame.
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