| 摘要 |
PROBLEM TO BE SOLVED: To provide a jet nozzle which can obtain larger jet pressure than that of a conventional nozzle under in equivalent supply pressure conditions. SOLUTION: In the jet nozzle 10, the ratio between an inlet area which is the area of the opening of an inlet hole 13 and an outlet area which is the area of the opening of an outlet hole 11 is adjusted to be approximately 3:1 so that the pressure loss in the jet nozzle 10 is reduced, and simultaneously by connecting the inlet hole 13 and the outlet hole 11 to each other by a tapered inner wall surface 12 of a prescribed angleθof 20 deg., the generation of a vortex in the jet nozzle 10 is controlled.
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