FIELD: shipbuilding.SUBSTANCE: invention relates to shipbuilding, namely, to versions of propulsors. In three versions propeller screw comprises hub with blades. In the first version, the shape of the screw blades has the shape of pipe fragments bent around the hub at an angle to its axis. In the second version, the shape of the screw blades has the form of semi-rings bent along the spiral around the hub by the concave side towards the screw rotation side, and upper edges of blades lie on surface of imaginary cylinder with radius similar to that of propeller. In the third version, the shape of the screw blades has the shape of pipe fragments bent around the hub, and with edges parallel to the screw axis.EFFECT: higher screw thrust.3 cl, 16 dwg
Гребной винт Гермова
2018-10-30
Patent
Electronic Resource
Russian
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
European Patent Office | 2016
European Patent Office | 2019