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In the construction of the electrostatic motor, that we developed, the rolling spherical bodies caused the rotation at the level of the rotor. In time of the experimental resources we found an interesting movement for a group of metal rolling bodies, at will show. This movement shows at the first time the interaction between the rolling bodies. Perhaps electrostatic effects between the rolling bodies cause the rotor arms number modification, for the optimal geometry. 1. Theoretical and experimental elements In the function of electrostatic motor, that we proposed and developed, the rolling bodies are caused the rotation of the rotor in directly physical contacts. This movement is experimentally point it, [1]. In fig. 1 it s show the geometrical principle for the propulsion at the single rolling body inside the inner of the spatial condenser. About for this complex movement we found an analytics equation for the position vector [2]. Relation 1, that it s can approximate the movement of the rolling body, single metal ball. Shortly about figure 1, who s represents the experimental stand: the spatial condenser, formed of: the square stand and the inferior dielectric on which the inferior fitting of the condenser is laid, the 4 superior dielectric, fig.1, which represents the rolling area of the spherical body 5, and in the end the metallic ring 6 placed on the superior dielectric which has the role of the superior fitting and in the same time of the stator of the electrostatic engine. Placed on the superior dielectric inside the metallic ring, it can found the rolling body that, when this condenser is fed from a source of constant high tension, starts the rolling movement, carried out inside the superior fitting, the movement taking place in the electric field generated by the spatial condenser on the superior dielectric. This movement of the spherical body determines the drawing of the engine’s rotor – reason for which it is necessary to study the movement of the rolling body in order to establish the geometry, the material of which the collector of the electrostatic engine is made and the movement collector that takes over the mechanic energy from the rolling body transferring it to the engine’s rotor. The rolling body executes a rolling movement inside the superior fitting 6, of the condenser, a process where the sphere takes over an energetic quantum from the superior fitting 6, of the condenser by contact, after which the fitting’s potential, is electrified. There follows a removal by rolling from the inside part of the fitting’s ring, the main cause of this phenomenon being the Coulomb electric repulsing force. The movement implies an energetic loss by electric leakage through the dielectric which will generate attraction forces between the rolling body 2 and the fitting’s ring 1, not before the apparition of the centrifugal force which will redirect the rolling body towards the metallic ring. In this phase, the body is attracted to the fitting’s ring due to a new electrization force, together with the effect of the centrifugal force, the rolling body will hit (touch) the superior fitting’s. In time between the ring and the rolling ball are taking place a reloading with charge of the sphere, phenomenon that generates the repetition of the process described above. In finally it s clear that exist an exchange of charge between the fitting 6 and the ball 5, ANNALS of the ORADEA UNIVERSITY. Fascicle of Management and Technological Engineering, Volume X (XX), 2011, NR1

EXPERIMENTAL RESOURCES ELEMENTS IN ELECTROSTATIC PROPULSION IN CASE OF ELECTROSTATIC MOTOR FOR METAL BALLS PROPULSION