| 摘要 |
PURPOSE: An ejector of a vacuum cleaner is provided to restrain a remaining of a foreign material at an inside of an ejector chamber by placing a chamber suction pipe along a straight line tangent to an outer surface of the ejector chamber, thereby turning and introducing a fluid into the ejector chamber. CONSTITUTION: A vacuum cleaner comprises a casing(11) for forming a storing space at an inside, a suction head(21) coupled integrally at a lower side of the casing, a suction fan(13) for generating a suction force, a filter casing(15) for collecting a foreign material at the inside, and a filter member(17). An ejector of the vacuum cleaner comprises an ejector nozzle portion(43), an ejector chamber portion(41) of a cylindrical shape, and a chamber suction pipe(42). The ejector nozzle portion(43) is placed at an end portion of an exhaust air-circulating pipe(33) and sprays a fluid in a high speed. The ejector chamber portion is placed at a circumference area of the ejector nozzle along an injection direction of the fluid. The chamber suction pipe(42) is placed along a straight-line tangent to an outer surface of the ejector chamber at one end of the ejector chamber.
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