SUCTION DREDGE PLANT Russian patent published in 1995 - IPC

FIELD: excavation of soils. SUBSTANCE: the plant has a suction dredge and a delivery hydraulic fill pipeline. The latter is furnished with a service chamber communicating with the fluid lubricant source. A telescopic sleeve is installed in the service chamber in alignment with the delivery hydraulic fill pipeline. The telescopic sleeve and delivery hydraulic fill pipeline are furnished with taper rings, which are installed coaxially relative to one another and make up an annular nozzle along the periphery of the hydraulic fill pipeline. The telescopic sleeve is installed for axial displacement it is furnished with load-bearing elements. EFFECT: improved design. 2 cl, 5 dwg