JET DIODE Russian patent published in 1994 - IPC

FIELD: fluidics. SUBSTANCE: jet diode has two coaxial tubes 1 and 2. Tube 2 has bell mouth 3 facing end of tube 1. At joint between bell mouth 3 and tube 2 there is circular cavity 4 with at least one circular row of inlet holes 5 made in its wall over its largest radius. Cylindrical shell 6 is mounted for longitudinal displacement outside of circular cavity 4 and coaxially with the latter that functions to close passage area of inlet holes 5. EFFECT: provision for control of diode function ability due to variation of inlet flow area to circular cavity 4 for surrounding air. 2 dwg