| 摘要 |
PROBLEM TO BE SOLVED: To provide a nozzle capable of efficiently and excellently mixing an oil or the like with pressurized air. SOLUTION: The nozzle is constituted of the outer cylinder and the inner cylinder. The outer cylinder forms the inner cylinder housing passage therein: this inner cylinder housing passage, is a hollow flow passage opened in one end and fitted with a tip end cylinder in the other end, wherein a jetting opening penetrates in parallel into the center axis of the outer cylinder in the tip end cylinder and forms a pressurized air taking-in passage which takes in the pressurized air from the outside in a part of the inner cylinder housing passage. The inner cylinder forms a hollow oil passage in parallel to the center axis therein, in which the oil passage keeps one end opened for feeding the oil or the like, the other end closed, and an oil-or-the-like opening opened in a radial direction in the midway. An air passage is carved on the peripheral surface of the inner cylinder. A spiral passage is carved on the outer peripheral passage in a direction of crossing the center axis of the inner cylinder in a groove shape. A space as a mixing chamber is formed between the mixing surface of the top end of the inner cylinder and the top end cylinder of the top end of the outer cylinder when the inner cylinder is housed in the inner cylinder housing passage inside the outer cylinder. COPYRIGHT: (C)2009,JPO&INPIT
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