| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a gas burner constituted so as to provide the stable combustion effect even in a low load, by securing a gas flow speed corresponding to a load in operation. <P>SOLUTION: This gas burner 10 is formed so that a Laval nozzle forming part 21 is arranged in the same axis extension position as a fuel gas supply means 30 in the distal end of an outer case 11, and a separating air flowing part is formed between the sucking-in part opening edge 22a of the Laval nozzle forming part 21 and an inner surface of the outer case 11, and a secondary combustion gas sucking-in part 25 by mixing of air and combustion exhaust gas branched off by the separating air flowing part, is arranged in front of an outlet of a diffuser 24 of the Laval nozzle forming part 21. Flame retaining plates 25a and 25b arranged in the secondary combustion gas sucking-in part 25 are expandably arranged to a flame jetting passage 29. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
