JET APPARATUS Russian patent published in 1999 - IPC

FIELD: jet apparatus used as mixing pumps. SUBSTANCE: nozzle for delivery of first compressible medium, mixing and expansion chambers and diffuser with neck are made in form of axially profiled hole in sectional bush which is pressed in body of jet apparatus; coaxial nozzle for delivery of second compressible medium is made in form of several holes in bush which connect intake chamber with mixing chambers; axes of these holes are oriented at angle equal to or lesser than 90 deg relative to axis of bush in whose wall hole is located in zone of expansion chamber for connecting the expansion chamber with outlet branch pipe fitted with relief valve. Insert of bush in zone of diffuser neck is made from highly elastic material, rubber for example. EFFECT: increased service life of jet apparatus. 2 cl, 3 dwg