DEVICE TO MAINTAIN LANE AROUND HYDRAULIC DREDGER Russian patent published in 2012 - IPC E02F3/88 

FIELD: construction.

SUBSTANCE: device to maintain a lane around a hydraulic dredger includes a suction nozzle with a suction tip communicated with a discharge pipeline, equipped with an exhaust nozzle and a water-outlet nozzle, a hydraulic pump. At the same time the suction nozzle with the suction tip and the hydraulic pump is installed on a pontoon, behind the hydraulic dredger. A box is fixed to the pontoon at the level of the suction tip, and the discharge pipeline is located directly in the bottomhole, the outlet nozzle of which is located under water at the level of the hydraulic dredger, and its nozzle is aligned in direction of the hydraulic dredger movement.

EFFECT: lighter design of hydraulic dredger, development of continuous artificial flow, liquidation of a stagnant area.

2 dwg