A rotor with variable hydrodynamic resistance for a stationary water bicycle comprises a central body provided on its perimeter with a plurality of blades of the marine type comprising an inlet edge, an outlet edge and a convex helical surface, as well as provided on opposite outer faces with axles per pedals, wherein each blade, at the outlet edge, is connected to the rotor with elastic fixing means adapted to allow the automatic orientation of the blade as a function of the rotation speed imparted to the rotor through the pedals, the central body houses means for adjusting the maximum possible opening comprising a mechanical end stop element movable for modifying the maximum possible opening of each blade, such means for adjusting the maximum possible opening of the blades being able to be actuated by control means connected at one end to the means for adjusting the maximum possible opening.
Rotor with variable hydrodynamic resistance for a stationary water bicycle and related bicycle
2016-08-16
Patent
Elektronische Ressource
Englisch
IPC: | A63B Geräte für Körperübungen, Turngeräte, Gymnastik, zum Schwimmen, Klettern oder Fechten , APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / B64C AEROPLANES , Flugzeuge / F01D Strömungsmaschinen [Kraft- und Arbeitsmaschinen oder Kraftmaschinen], z.B. Dampfturbinen , NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES |
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