SCREW MOTOR Russian patent published in 2018 - IPC B62D57/36 

FIELD: machine building.

SUBSTANCE: invention relates to transport engineering, in particular to off-road vehicles, and may be used as a propulsor in wheelchairs to overcome staircases of common use. Screw propeller, containing a cylindrical rotor with a screw crest. Helical crest with the rotor function is mounted on a hollow cylinder with a stator function and is made multi-threaded in the form of helical springs on screw rings of elastic material, the outer contour of which is shaped along the inner contour of the springs, and the inner contour is along the outer contour of the cylinder.

EFFECT: increase in the patency of the vehicle with such a propulsion device is achieved.

1 cl, 2 dwg