Premix burner with firing rate control
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Sep 12, 2002
app pub date -
Oct 29, 2001
filing date -
Apr 19, 1999
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An apparatus for heating a process chamber. The apparatus includes a furnace structure that defines a reaction zone that communicates with the process chamber. A burner structure defines a burner port and communicates with the reaction zone through the burner port. The burner structure includes a plurality of mixer tubes. The mixer tubes mix fuel and oxidant and define flow paths for the fuel and oxidant. Each of the flow paths extends through a respective mixer tube. A valve assembly interrupts a flow of fuel and oxidant along one of the flow paths. The valve assembly is shiftable between a closed condition interrupting a flow of fuel and oxidant along the flow path, and an open condition not interrupting the flow. A controller operates to shift the valve assembly into or out of its open condition. The controller has a mode of operation including consecutive cycles in which the valve assembly is shifted into and out of its open condition.
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