GAS EJECTOR Russian patent published in 1994 - IPC

FIELD: fluidics. SUBSTANCE: gas ejector has active nozzle 1, mixing chamber 2 with diffuser 3, blade insert 4 mounted coaxially relative to the mixing chamber; angle of inclination of blades 5 relative to ejector axis is varying by radius; this angle is equal to zero at axis of mixing chamber 2; leading edges 6 of blades 5 are stepped; leading edges 6 of stage of lesser radius are located inside nozzle 1 and leading edges 6 of blades 5 of stage of larger radius pass through circumference of outlet section of nozzle 1; blades 5 are made of two parts 7 and 8; part 8 of blade 5 which is arranged at larger distance from nozzle 1 is bent towards twist of blades 5. EFFECT: enhanced efficiency and reduced overall dimensions. 3 cl, 5 dwg