FIELD: creation of vacuum in closed volumes. SUBSTANCE: jet apparatus includes mixing chamber, receiving chamber and active nozzle equipped with distributing chamber on side of its inlet; distributing chamber has slotted holes in its lateral surface. Length of holes L is equal to Ad; width of holes δ is equal to 
. Inner diameter D of distributing chamber is equal to 
. A is rated factor equal to 2-18; B is rated factor equal to 0.2-11; C is rated factor equal to 0.5-6.0; d is diameter of minimum section of nozzle. EFFECT: enhanced efficiency of gas-and-liquid jet apparatus. 1 dwg
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