FIELD: machine engineering.;SUBSTANCE: unit has a distributing chamber with nozzles, a receiving chamber, a mixing chamber and a discharge chamber. Each mixing chamber is mounted coaxially relative to its nozzle. The nozzle consists of an outer cylindrical shell provided with a bushing made of antifriction polymeric material is mounted, at that the bushing is capable of rotary motion relative to shell due to the gap between the inner wall of shell and outer surface of the bushing, and there are blades fixed on thr inner surface of the bushing.;EFFECT: increasing the ejector efficiency while reducing the device weight and simplifying the manufacturing process.;3 dwg
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