PETAL NOZZLE OF EJECTOR TO IMPROVE STRUCTURE OF EJECTION PIPE BY FORMING FRONT EJECTION PIPE OF NOZZLE AS PETAL PORTION OF PETAL SHAPE

摘要

PURPOSE: A petal nozzle is provided to increase the carrying speed and the carrying efficiency of intake fluid by expanding the shear area of a driving fluid through the nozzle and improving the negative pressure in front of the nozzle. CONSTITUTION: An ejection pipe is formed by a petal pipe(25) having protruding portions(23) and folding portions(24). The protruding portions form a petal shaped passage by protruding in all directions centering the center shaft of a nozzle. The folding portions are folded toward the center shaft of the nozzle by the protruding portion. The imaginary diameter of the protruding portions in the petal pipe is extended in the same diameter through the injecting direction of driving fluid from a nozzle portion(21). Or the imaginary diameter is increased through the injecting direction of the driving fluid from the nozzle portion. Thereby, the strong whirlpool is formed in the front space of the nozzle and the front space of the nozzle becomes a high vacuum status.