Abstract: The present invention relates to a gear system with automatic operation designed to transmit the torque from the engine of an automotive vehicle to the driven wheels of the vehicle, in which changes in the vehicle speed is controlled as a function of the torque generated by the engine and of the linear momentum of the vehicle.

Abstract: The present invention relates to a gear system with automatic operation designed to transmit the torque from the engine of an automotive vehicle to the driven wheels of the vehicle, in which changes in the vehicle speed is controlled as a function of the torque generated by the engine and of the inertial momentum of the vehicle.

Abstract: This invention is distinguished by a continuously variable transmission that can contain one or more gear sets. This gear set is composed of two coupled gears (attached to each other), concentric with different sizes, with one shaft free to rotate and orbit, because this rotation will furnish the velocity in the direction of the movement to alter gear ratios, without gear shifting; besides two additional concentric and finned structures that complete the system's functionality. There is no need to shift gears, optimizing the movement by means of planetary gears revolving around the drive and driven shafts.