Abstract: An improved system for generating energy by exploiting wind at a height. The system comprising at least one generator placed on the ground and operatively connected to at least one device for capturing energy through at least one constraining element. The constraining element is designed to transfer mechanical energy generated, as traction force, from the device for capturing energy to the generator. Where the device is a non-constrained rotor, namely a rotor not connected to the constraining element, and is designed to convert wind energy at a height with the traction force having an intermediate direction between wind axis and a vertical line with respect to the ground.

Abstract: A system (1) is described for generating electric energy by exploiting wind at a height, comprising at least one ultra-light component of the kite type composed of two or more retractable wing profiles (11, 12) which can be extended or retracted through means placed inside a central housing (13), thereby obtaining both the chance of more easily rising and descending the kite, and the chance of regulating/controlling the working surface of the wing profiles (11, 12) depending on a wind intensity.

Abstract: The present invention deals with a new system for transmitting energy through a cable and interconnected pulleys. The traditional power transmission through pulleys sizes the system of belts and friction surfaces depending on energy to be transmitted and is obtained through systems composed of a rotary element for every point of application and of a flexible element for the connection. In the proposed system, the flexible element is a high-resistance cable and friction on the rotary element is increased by using interconnected pulleys, which increase the cable friction surface allowing power transmissions without any sliding till the cable breaking point. The lightness of such system allows it to find optimum application in transmitting to ground all wind energy produced at an upper level. The system of interconnected pulleys is further applied to discontinuous tractions in the sailing field, replacing the traditionally used winches.

Abstract: The present invention deals with a new system for transmitting energy through a cable (2) and interconnected pulleys (1, 3, 5). The traditional power transmission through pulleys sizes the system of belts and friction surfaces depending on energy to be transmitted and is obtained through systems composed of a rotary element for every point of application and of a flexible element for the connection. In the proposed system, the flexible element is a high-resistance cable (2) and friction on the rotary element is increased by using interconnected pulleys, which increase the cable friction surface allowing power transmissions without any sliding till the cable breaking point. The lightness of such system allows it to find optimum application in transmitting to ground all wind energy produced at an upper level. The system of interconnected pulleys (1, 3, 5) is further applied to discontinuous tractions in the sailing field, replacing the traditionally used winches.