Burner, combustion apparatus, water heating apparatus and combustion method

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United States of America Patent

PATENT NO 9927143
SERIAL NO

14606185

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Abstract

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A burner includes a first burner port that generates a first flame, a gap that surrounds the first burner port, and a plurality of second burner ports that are disposed on either side of the gap, the second burner ports generating second flames to hold the first flame. The first burner port combusts a first mixture (lean mixture) to generate the first flame (lean flame). The first mixture includes air more than fuel gas. A gap that surrounds the first burner port is formed. A plurality of the second burner ports are arranged on either side of the gap. The second burner ports combust a second mixture (rich mixture) to generate the second flames (rich flames) and hold the first flame. The air-fuel ratio of the second mixture is smaller than the first mixture.

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Patent Owner(s)

Patent OwnerAddress
PURPOSE CO LTD201 NISHIKASHIWABARASHINDEN FUJI-SHI SHIZUOKA 417-8505

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Naitoh, Katsumi Fuji, JP 12 119
Sano, Yoshiaki Fuji, JP 71 825

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