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The results of experimental researches of vortex ejector stage vacuum unit on the basis of liquid-ring vacuum pump are presented in the paper. Influence of geometry of the vortical chamber on regime characteristics of the vacuum unit is defined Recommendations for choice of the optimum geometrical parities of the flowing chamber depending on problems of designing of the vacuum unit are made

Regime Characteristics of Vacuum Unit With a Vortex Ejector Stage With Different Geometry of Its Flow Path