IMPELLER Russian patent published in 2017 - IPC B63H11/00 

FIELD: transportation.

SUBSTANCE: impeller consists of a coil, fixed on the transverse propeller shaft, two parallel between each other disks, fixed on the sides of the coil and water supply and discharge blades. All blades are fixed by groups between the disks and each blade from the group is located at its diameter unequally distant from the shaft. The water supply blades are fixed along the smallest diameter of the disk and are bent along the arc towards the shaft, and the water discharge blades are fixed along the largest diameter of the disk and its blades are curved along the arc away from the propeller shaft and when the wheel rotates they change their inclination angle to the water surface so, that they provide shockless entry into the water, water overtopping into the lower blades, acceleration and discharge of water in the direction opposite to the direction of the vessel movement.

EFFECT: creation of greater propelling force to the vessel at small shallow draft.

5 cl, 1 dwg