DRIVE PROPULSOR Russian patent published in 2020 - IPC B62D57/36 

FIELD: machine building.

SUBSTANCE: invention relates to transport machine building. Drive propulsor comprises a body and a propulsor. Propulsor is made in the form of a hollow cylindrical multi-start helical jacket with helical lines and helical curvilinear surfaces. Jacket is mounted along the entire perimeter of the vehicle body and equipped with devices for imparting a rotation about its own axis to a hollow cylindrical multi-start screw jacket. Propulsor is made of rectangular ribbons bent along helical lines on cylindrical first mandrel, with formation along perimeter of helical curvilinear surfaces in form of helical grooves of convex shape with centres of curvature inside these grooves.

EFFECT: simplified design of propulsor.

1 cl, 8 dwg