JET-EJECTING NOZZLE Russian patent published in 1995 - IPC

FIELD: dusting of hard-to-get-at zones. SUBSTANCE: nozzle comprises channel for air supply to treated surface, and suction pipe. Air supply channel has the form of Laval nozzle installed in mixing chamber, diffuser, filter and converging tube, all of these being installed in succession on one and the same axis along the air flow. Diffuser, filter and converging tube are accommodated in suction pipe which has the form of a truncated cone connected by its smaller base to side surfaces of mixing chamber. EFFECT: improved design. 1 dwg