| 摘要 |
A burner having improved flame quality even at high turn-down ratios. The burner includes a flow director which is preferably a bent sheet or plate positioned in the burner to alter the flow geometry of the air component into a series of channels where the air mixes with the fuel. Preferably the flow director is perforated, the perforations providing a second avenue for the flow of air into the mixing channel.
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