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

FIELD: ship repairing; devices for cleaning ship's hulls by hydraulic or cavitating jet.

SUBSTANCE: proposed device includes body, handle, working nozzle and working head with working injector. Tubular member arranged in handle is connected on one side with high-pressure chamber through respective liquid supply passage and flexible hose and with working nozzle passage on other side through outlet collector. Working head is provided with protective casing made in form of body of revolution with through axial hole; it is connected with passage of working nozzle through expansion chamber and radial holes. Working head made in form of shaft-distributor is provided with second working injector; device is also provided with tubular members and disk for mechanical treatment of surfaces which is secured on one end of shaft-distributor; its second end is inserted into through axial hole for sealing the working medium supply passage. Outer diameter of second end of shaft-distributor corresponds to diameter of through axial hole made in body. Outer diameter of center part of shaft-distributor exceeds outer diameter of end parts. Shaft-distributor has blind axial hole which is used as passage of working head. Center part of shaft-distributor has radial holes which are communicated with blind axial hole of shaft-distributor. Received by said radial holes of center part of shaft-distributor are tubular members with working injectors mounted at their ends. Injector nozzles are directed circular clearance formed by edge of protective casing and edge of disk used for mechanical treatment of surfaces.

EFFECT: improved service characteristics of device; extended functional capabilities.

10 cl, 2 dwg