DEVICE FOR HYDRODYNAMIC CLEANING OF SURFACES Russian patent published in 2004 - IPC

FIELD: cleaning ship's hulls by hydraulic or cavitating jet.

SUBSTANCE: proposed device includes handle-body, working nozzle and working head. Head has body and working injector. Tubular member mounted inside handle-body is connected with high-pressure chamber on one side through respective passage supplying the working fluid and flexible hose and with working nozzle on other side through outlet manifold. Head is provided with protective cylindrical casing rigidly connected with its body and with working nozzle; it has second working injector and nozzle with axial hole whose diameter corresponds to outer diameter of head body. Nozzle is rotatably mounted on head body ensuring tightness of liquid supplying passage. Expansion chamber provided inside nozzle is communicated with working fluid supplying passage through radial hole and blind axial hole made in working head body. Nozzle has holes for communication with expansion chamber which are made at angle relative to horizontal axis. These holes are used for securing the working injectors by means of threaded joint through respective sealing members. Injectors may be mounted on body at angle α=90-120 deg. relative to each other and their axes may be shifted relative to center of head.

EFFECT: improved quality of device.

8 cl, 2 dwg