Rich-lean combustion burner
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United States of America Patent
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Aug 25, 2015
Grant Date -
Dec 6, 2012
app pub date -
May 30, 2012
filing date -
May 30, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A rich-lean combustion burner has a supply channel through which a lean-side mixture is supplied to lean-side flame holes; and a supply channel through which a rich-side mixture is supplied to rich-side flame holes. The supply channels are partitioned from each other. A third plate member including a pair of plate parts which are bent to form a V shape at its lower end edge as a fold line is employed to form a central rich-side burner part. A slit part is partitioned and formed between side edges of a pair of first plate members on both longitudinal sides for forming lean-side flame holes on width-wise sides of the central rich-side burner part. With the lower end part in front, the V-shaped third plate member s inserted into the slit part, thereby being interposed between the first plate members.
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