VALVE PROVIDED WITH A MULTIPHASE LINEAR ACTUATOR FOR HIGH PRESSURE DOSING

摘要

The present disclosure concerns a fluid dosing valve displaced by an electric actuator generating the translation of a shutter, the electric actuator including a multiphase motor including a stator having a plurality of wound poles formed by stacking a plurality of sheets and a rotor including a transmission transforming rotational movement into the linear movement of an output member, a non-magnetic sleeve insulating the rotor from the stator, and magneto-sensitive elements for detecting the position of the rotor. These magneto-sensitive elements are placed on the outside of the sleeve and sense the position of the rotor through the insulating sleeve.

主权项

1. A fluid dosing valve operated by an electric actuator generating the translation of a shutter, with the electric actuator comprising a multiphase motor comprising a stator having a plurality of wound poles formed by stacking a plurality of sheets, and a rotor comprising a transmission transforming rotational movement into a linear movement of an output member, with a non-magnetic sleeve insulating the rotor from the stator, and magneto-sensitive elements detecting a position of the rotor, and the magneto-sensitive elements being outside the sleeve and sensing the position of the rotor through the insulating sleeve , with the non-magnetic sleeve being configured as to completely insulate:
(a) a volume defined by a space inside the assembly formed by the sleeve and the plug, and containing the rotor and communicating with the valve head, the threaded screw and the shutter; and (b) a volume defined by a space outside the assembly formed by the sleeve and the plug, and comprising the stator, the electric circuits and connections.