Abstract: A blade for a device for generating energy from a fluid including a driving surface inside which a fluid is intended to flow in order to rotate the blade about a rotational axis {right arrow over (X)}0, {right arrow over (Y)}0 which defines with axes {right arrow over (Y)}0, {right arrow over (Z)}0 an orthogonal reference frame, {right arrow over (X)}0, {right arrow over (Y)}0, {right arrow over (Z)}0. Said blade being bounded by a leading edge and a trailing edge, narrowing between the leading edge and the trailing edge, running along a neutral fiber, where the projection of the neutral fiber onto the plane {right arrow over (X)}0, {right arrow over (Y)}0 has a first curvature. The plane {right arrow over (X)}0, {right arrow over (Y)}0 being defined so as to contain the neutral fiber at the leading edge. The blade is particularly applicable to wind generators.

Abstract: The invention relates to a rotor for fluid flow power generator comprising a plurality of blades obliquely oriented relative to the axis of the rotor, characterized in that it comprises means for varying the obliqueness of the blades.

Abstract: The invention relates to a wind generator for generating power thanks to the force of the wind or a stream of water. The invention includes a rotor provided with 2, 3 or 4 semi-frustoconical twisted blades practically parallel to the rotation axis, which is horizontal. It is silent, starts with a low-speed wind and can operate in very strong winds. It requires a very short mast, thereby considerably reducing the visual impact on the countryside and the environmental disturbance. It may be intended for dwellings, individual houses, ships, caravans, but also for agricultural uses or any other applications requiring electric power or the like.

Abstract: A blade for a device for generating energy from a fluid including a driving surface inside which a fluid is intended to flow in order to rotate the blade about a rotational axis {right arrow over (X)}0, {right arrow over (Y)}0 which defines with axes {right arrow over (Y)}0, {right arrow over (Z)}0 an orthogonal reference frame, {right arrow over (X)}0, {right arrow over (Y)}0, {right arrow over (Z)}0. Said blade being bounded by a leading edge and a trailing edge, narrowing between the leading edge and the trailing edge, running along a neutral fibre, where the projection of the neutral fibre onto the plane {right arrow over (X)}0, {right arrow over (Y)}0 has a first curvature. The plane {right arrow over (X)}0, {right arrow over (Y)}0 being defined so as to contain the neutral fibre at the leading edge. The blade is particularly applicable to wind generators.

Abstract: The invention relates to a wind generator for generating power thanks to the force of the wind or a stream of water. The invention includes a rotor provided with 2, 3 or 4 semi-frustoconical twisted blades practically parallel to the rotation axis, which is horizontal. It is silent, starts with a low-speed wind and can operate in very strong winds. It requires a very short mast, thereby considerably reducing the visual impact on the countryside and the environmental disturbance. It may be intended for dwellings, individual houses, ships, caravans, but also for agricultural uses or any other applications requiring electric power or the like.