| 摘要 |
1. An output ejector of a vacuum pump attached to the output of the pump particularly of a rotary pump, composed of blanking-off elements placed preferably between two parallel rings, characterised in that the blanking-off elements are shapes (4, 5, 6), whose the exterior arms are spaced evenly on the circumference, whereas respective shapes (4, 5, 6) are grouped, and each group consists of shapes of different heights of cross-sections placed so that the interior arms of respective shapes (4, 5, 6) are set in groups radially, and the slots (a) between the exterior arms constitute a radial input of agent for the ejector, and the output axial passages of the ejector.<IMAGE>
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