HETEROGENEOUS MEDIUM TRANSFER INJECTOR PUMP Russian patent published in 2012 - IPC F04F5/42 

FIELD: engines and pumps.

SUBSTANCE: pump comprises tubular feed and discharge branch pipes arranged in cylindrical casing to make annular clearance in axial direction and pressure chamber in radial direction, and branch pipe for tangential feed of induced fluid arranged inclined in casing. In compliance with this invention, additionally incorporated is swirler of induced fluid arranged in pressure chamber on feed tubular branch pipe made up of sleeve with through spiral channels exposed on its faces made on its outer surface. Outlet branch pipe represents Laval nozzle with confuser and diffuser sections with straight generating lines. Said confuser section is arranged in casing on thread to axially displace in annular clearance. Note here that opening angle of confuser section makes α₁=55-65°. Note here that relationship between inner diameters of end faces of outlet and inlet diameters d₁ and d₂ of branch pipes makes d₂/d₁=1.0-1.5.

EFFECT: ease of transfer ensured by centering solid particles tending to clogging.

4 cl, 5 dwg