MULTISTAGE MULTIPURPOSE HYDRAULIC SUPERCHARGER WITH CONTROLLED PRESSURE Russian patent published in 2020 - IPC F15B3/00 

FIELD: machine building.

SUBSTANCE: multistage multi-purpose hydraulic supercharger with adjustable injection rate is provided, comprising a part representing a multistage injection structure, a hydraulic oil circuit, a control part of the hydraulic oil circuit, circuit of forced fluid medium and control part of injected fluid medium circuit. Multistage pressure unit comprises cavity (C1) for hydraulic oil, first stage discharge cavity (C2), second stage discharge cavity (C3) and third stage discharge cavity (C4). Hydraulic oil circuit and its control part comprises electromagnetic stroke limiter, three-position four-way electromagnetic reversing valve (10), control device (11), inlet (P3) for hydraulic oil and return hole (P4) for hydraulic oil. Outline of injected fluid medium and its control part comprises one-way valve, one-way valve with hydraulic control, on-off two-way electromagnetic reversing valve, inlet port (P1) for injected fluid medium, outlet hole (P2) for fluid medium, which is not injected, and outlet hole (P5) for pumped fluid medium.

EFFECT: according to multistage multi-purpose hydraulic injector with controlled injection speed fluids under high pressure, not limited only by water or hydraulic oil, with different delivery rates can be obtained without replacing the booster by multi-stage control device, wherein the application range and injection medium of the injector are enlarged, and effects of using several pressures in the same injector and multiple-purpose application of one supercharger can be achieved.

6 cl, 1 dwg