FIELD: jet facilities. SUBSTANCE: output of first ejector is connected by pipeline with intake chamber of passive medium of second ejector. Above-indicated pipeline is made branching in direction of medium flow into minimum two parallel-connected sections of which second one plays the part of outlet section communicating outlet of first ejector with atmosphere. Regulating shutoff device is installed on each branched section of above- indicated pipeline. EFFECT: enlarged operating capabilities. 122 cl, 33 dwg
