ES415810A1 - Improvements in servicing mechanisms for vehicles automobiles. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improvements in servo steering mechanisms for motor vehicles, of the kind comprising a double-acting actuator cylinder, formed in the steering box itself and in which a piston is slidable, kinematically connected to the output shaft of the box and provided with coupling means that transform the rotation of a spindle, attached to the steering wheel, in translational movement of said piston, the two working chambers of the cylinder being selectively and alternately connectable with an inlet and a return of pressurized fluid actuator, by means of a valvular device that reacts to the movement of the steering wheel, characterized essentially by the fact that said spindle is provided, on one of its ends, with a widened head, facing one of whose faces is mounted freely rotating, with limited amplitude, a control piece provided with coupling means for a steering rod associated with the steering wheel, said head and part being provided with combinations of cavities and complementary lugs that play inside them, in which ducts communicating with the chambers of the actuating cylinder and with the arrival and return of the fluid, and provided with means for controlling said ducts in response to the movement of the steering wheel, forming a dynamic reaction valve system. (Machine-translation by Google Translate, not legally binding)