MULTINOZZLE LIQUID-AND-GAS JET DEVICE Russian patent published in 1998 - IPC

FIELD: creation of vacuum. SUBSTANCE: each nozzle of device is equipped with filtering element mounted on side of entrance to it which is manufactured in the form of sleeve with longitudinal holes in its side wall. Summary area of holes of each filtering element is more than twice as large as area of cross-section of least flow section of nozzle. Width of each hole of filtering element is at least half as large as smallest distance between opposite walls in cross-section of nozzle in zone of its minimum flow section. According to another variant of implementation of invention each mixing chamber is provided with inlet branch pipe located in intake chamber and height of each inlet branch pipe amounts to 0.05 to 86.0 its diameters. EFFECT: decreased energy losses with supply of pumped away and active medium, increased reliability of operation of device. 2 cl, 1 dwg