Abstract: A device for controlling the opening and the closure of a valve includes rotatable element configured to control the position of the rotary valve on the basis of its rotation in a direction or in the opposite direction; and a system that causes the rotation of the rotatable element and includes two antagonist feeder conduits that generate a linear motion. The rotatable element is shaped as a pulley and the system that causes the rotation further includes a wire anchored to the pulley and to the feeder conduits to cause the rotation in a direction or in the opposite direction of the pulley based on the application of a pre-determined traction on the wire obtained through the linear motion generated by the feeder conduits.

Abstract: A device for controlling the opening and the closure of a valve includes rotatable element configured to control the position of the rotary valve on the basis of its rotation in a direction or in the opposite direction; and a system that causes the rotation of the rotatable element and includes two antagonist feeder conduits that generate a linear motion. The rotatable element is shaped as a pulley and the system that causes the rotation further includes a wire anchored to the pulley and to the feeder conduits to cause the rotation in a direction or in the opposite direction of the pulley based on the application of a pre-determined traction on the wire obtained through the linear motion generated by the feeder conduits.

Abstract: The present invention concerns a control valve comprising: —A passage path for a fluid inside the valve and that puts in communication an inlet with an outlet; —An obstruction element arranged as to result mobile between a closing position, in which it obstructs the path impeding the passage of the fluid from the inlet towards the outlet, and an opening position in which it allows said passage, and; —Movement means for operating the movement of the obstruction element between said opening position and said closing position and vice-versa. In accordance with the invention, the movement means comprise a joint linkage.

Abstract: The present invention concerns a control valve comprising: —A passage path for a fluid inside the valve and that puts in communication an inlet with an outlet; —An obstruction element arranged as to result mobile between a closing position, in which it obstructs the path impeding the passage of the fluid from the inlet towards the outlet, and an opening position in which it allows said passage, and; —Movement means for operating the movement of the obstruction element between said opening position and said closing position and vice-versa. In accordance with the invention, the movement means comprise a joint linkage.

Abstract: A high torque limited angle compact and lightweight actuator that comprises a driven pulley (11), a flexible tie-member (6), which is wound about the driven pulley (11), a linear actuator (7) and an inversion mechanism (8). In particular, the linear actuator (7), which is located with respect to the driven pulley (11) such that the direction is substantially tangent to it, comprises a movable element (10) that carries out a linear movement along a line according to two opposite directions (10?), (10?). The inversion mechanism is such that when an input portion (8?) moves along a line (first straight line), tangential to the driven pulley, of a certain an amount a output portion (8?) moves along another line (second straight line), which is also tangential to the driven pulley, for a same movement amount, such that the total length of the tie-member (6) is unchanged. (FIG.