VOLUMETRIC HYDRAULIC MOTOR FOR PRESSURIZED SYSTEMS ALSO INDICATED TO PROFIT BY THE PRESSURE IN EXCESS OF AQUEDUCTS AND SIMILAR FOR THE PURPOSE OF PRODUCING ELECTRICAL ENERGY

The present industrial invention concerns a vane volumetric turbine which is characterized by having the rotor concentric with the containment cylinder and non-eccentric as in all existing vane pumps. The necessity of having devised the new system is born by the problem of exploiting the pressurized system of aqueducts and the like in order to produce electricity, as is known, the operating pressure in a water network varies continuously in the various time slots as a function of consumption of water by users. In certain aqueducts the pressure is very high and it is necessary to reduce it with suitable pressure reducing devices that dissipate the energy of excess pressure. The volumetric turbine according to the invention exploits the pressure and water flow in a single direction of rotation, the water enters by a dedicated channel in the cylinder of containment of the turbine and is forced to continue channeled between the rotor and the inner surface of the said cylinder. The rotor is equipped with four equally spaced vanes that are housed freely in the corresponding calibrated grooves, suitable calibrated springs provide to push outwards the said vanes which end their run when they encounter the inner surface of the containing cylinder. Two lateral flanges are coupled hermetically to the containing cylinder enclosing the rotor with its side surfaces in a form almost sliding on the surfaces internally flat of the two concentric flanges, which are also equipped with mechanical seal rings and bearings for the rotor shaft. The inner surface of the containing cylinder results for half the circumference coaxial to the cylindrical surface of the rotor and for the other half eccentric, a processing better described hereinafter with the aid of the accompanying figures. The pressurized water enters the turbine through a delivery pipe and flows internally to the same in a quadrangular channel obtained by the coupling of the rotor with the containing cylinder whose width is defined by the two internal surfaces of said side flanges. In the proximity of the inlet water pipe we find, on one side, a bulkhead that almost touches the rotor which prevents the passage of water and on the other the start of the said quadrangular channel. When the turbine is stationary one of the four vanes is always located in the stretch of the quadrangular channel thrust, ready to receive the force of water under pressure to begin the rotation. When the vanes during the rotation meet the e