SHIP PROPELLER (PROPULSOR) Russian patent published in 2015 - IPC B63H1/26 

FIELD: motors and pumps.

SUBSTANCE: invention relates to ship propellers and can be used both in ordinary and in high-speed ships, as well as a working body in the water-jet propulsors. The ship propeller (propulsor) comprises a sleeve and blades. On the working side of the blades the protrusions are located, oriented on circumference of rotation relative to the axis of rotation of the propeller. The height increases linearly from zero at the inlet edge to maximum at the output.

EFFECT: reduction of losses and increase in efficiency is achieved in interaction of the flow with the blade.

2 cl, 4 dwg