JET PUMP Russian patent published in 2012 - IPC F04F5/04 

FIELD: engines and pumps.

SUBSTANCE: proposed pump comprises distributed chamber accommodating active nozzle provided with multiple orifice restricting tip, accelerating nozzle with taper cavitator, and mixing chamber. Note jeer that active nozzle is provided with multiple orifice restricting tip made up of D-diameter diaphragm with thickness E<(=)0.1 D. Besides, acceleration nozzle represents Venturi-type taper nozzle, delineated by radius r=d, where d is neck diameter. Neck inlet section has cylindrical inlet with length L=d, while diffuser angle half varies from 3° to 4°, and features relation: d/D₁<(=)0.25.

EFFECT: possibility to reach critical speeds.

3 cl, 3 dwg