Patent ID: 11860664
Assignee: WALVOIL S.P.A
Field: Mechanical elements (Mechanical engineering)
Classification: CPC G  F  H  E | IPC F  G  H

Claim 0:
1. A control apparatus for actuating hydraulic valve systems comprising:
an actuation section which comprises an oscillating control element around a hinging point and a plurality of control rods arranged around the hinging point and provided with a pusher capable of interacting with the control element following the oscillation thereof around the hinging point so as to make the control rods translate in the longitudinal direction;
a sensor section which comprises a plurality of sensor elements for detecting a movement in the longitudinal direction of said control rods;
an auxiliary section comprising a haptic device, capable of providing the user of the control apparatus a feedback during the movement of the oscillating control element, the haptic device comprising at least one pair of ferromagnetic elements associated with a respective control rod and capable of mutual distancing movement following the movement of the control rod in an insertion direction; wherein said ferromagnetic elements are coaxial to an electric winding configured so that following the passage of a current in said winding the two elements are subjected to a magnetic field such as to generate a resisting force adapted to produce said feedback during the movement of the oscillating control element, wherein the auxiliary section is located in an intermediate position between the actuation section and the sensor section, each of said electric winding comprising opposite ends, said opposite ends comprising a first end facing the actuation section and a second end facing the sensor section, each control rod passing through both opposed ends of a respective electric winding, such that the ferromagnetic element can be extracted from the second end in order to modify a resisting force generated by the haptic device opposing the movement of the control rod towards said insertion direction, the control rods projecting from the second end of the respective electric winding so as to reach respective sensor elements of the sensor section.