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
30.10.2018
Patent
Elektronische Ressource
Russisch
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
Europäisches Patentamt | 2016
Europäisches Patentamt | 2019