| 摘要 |
PROBLEM TO BE SOLVED: To provide a burner which equalizes the flow rate of mixture in respective nozzles more positively while keeping its compactness. SOLUTION: This burner is designed so that an annular pipe 2 may have the largest area at a first inflow portion 21 into which the mixture flows in the forward direction (counter-clockwise) from an induction pipe 1. The cross-section area of the annular pipe 2 from the first inflow portion to a minimum cross-sectional area portion is gradually reduced in the forward direction. The cross-sectional area of the annular pipe 2 from a second inflow portion 22 into which the mixture flows in the opposite direction (clockwise) from the induction pipe 1 to the minimum cross-sectional area portion 24 is gradually reduced in the opposite direction. The minimum cross-sectional area portion 24 is formed at a position shifted to the second inflow portion 22 side from a middle portion 23 between the first inflow portion 21 and the second inflow portion 22. COPYRIGHT: (C)2004,JPO
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