Importance

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Abstract

The hydro turbine of the invention consists of a housing, which represents a stator part of hydro turbine, or a stator (S), and a rotor (R) that is assembled on the stator (S) through its axis so as to enable its rotation. The rotor (R) is designed as an axially symmetric body with flat lateral surfaces with a circular cross-section. The circular cross-section from both outer ends, that is from both flat lateral surfaces with a circular cross-section, decreases equally and continuously towards the middle, so that the rotor (R) has a narrowest cross-section in the middle. The decrease of the circular cross-section from both outer ends of the rotor (R) towards the central part of the rotor (R) is carried out such that the shape of the rotor (R) body in the longitudinal cross-section, that is, along the axis of the rotor (R), follows the shape of a parabolic curve or a sinusoidal curve. The rotor (R) has over its entire surface, in the longitudinal direction, that is along its axis, curved grooves (U). This kind of design of the hydro turbine enables that the water flows through the grooves (U) towards the middle part of the rotor (R), where it flows out and transfers all the momentum to the rotor (R), so that the hydro turbine can generate the torque (MR) even with small and variable flows.

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First Claim