Patent ID: 6508330
Filing Date: 2003-01-21
Classification: B62D,Y10T

Abstract:
Distribution system (10) of the oleodynamic type comprising a core (12), connected to a driving shaft (17), said core (12) encased inside a casing (11) provided with an inlet connection (60) for feeding a fluid coming from a suitable source (31) of pressurized fluid, an outlet connection (61) connected to a return circuit (61) of the fluid towards a tank (33), and at least tow connections (62, 63) for the selective direction of said fluid towards a respective chamber (R, L) of a double effect actuating cylinder (40), said core (12) and casing (11) being relatively movable with respect to one another, said core (12) being provided with suitable distribution guide members (13-16) in order to allow the selective passage of the pressurized fluid through to one or the other of said respective chambers of the actuating cylinder (40), following a movement drive exerted onto said core (12) relatively to said casing (11), or exerted onto casing (11) with respect to said core (12), said core (12) and said driving shaft (17) are aligned with said casing (11) and rotably movable about their common axis (X), system characterized in that said core (12) and said casing (11) constitute alone one oleodynamic system to which said driving shaft (17) is connected, and in that said distribution system (10) further comprises resilent centering means (22, 23), acting on the mechanical components external to said oleodynamic system connected to said core (12) or to said casing (11), said resilient centering means being suitable for exerting a force of rotation transmitted to said mechanical components external to the oleodynamic system so that, following a rotation actuation by a predetermined angle around the common axis (X), said mechanical components external to the oleodynamic system and said core (12), or said casing (11), in case the control is lacking, are taken back to their hydraulic centered position with the fluid flux in a by-pass situation.