Actuator with open-loop control direct drive
AssigneeMmt SA
InventorsAntoine FOUCAUT, Pierre GEMBERLÉ, Antoine BOURGADE
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Abstract
Travel of a brushless rotary actuator is limited by two stops, including a wound stator and a magnetic cylindrical rotor rigidly attached to a shaft having a first end rigidly attached to a control member. A second end of the shaft is rigidly attached to a travel limiting part acting as stops, and the travel limiting part has bending, resilient beam shapes. The actuator is electrically controlled in an open-loop. A control system controls a lift value of valves of an internal combustion engine by a lever driven by such an actuator.
Claims18
A brushless rotary actuator with travel limited by two stops, comprising a wound stator and a magnetic cylindrical rotor rigidly attached to a shaft having a first end rigidly attached to a control member, a second end of the shaft being rigidly attached to a travel limiter acting as stops, the travel limiter has bending, resilient beam shapes, and the actuator being electrically controlled in an open-loop.
A control system for controlling a lift value of valves of an internal combustion engine comprising a camshaft, movement of the camshaft being ensured by a lever driven by a brushless rotary actuator with travel limited by two stops, a wound stator and a magnetic cylindrical rotor rigidly attached to a shaft having a first end rigidly attached to a control member, a second end of the shaft being rigidly attached to a travel limiter acting as stops, the travel bending, resilient beam shapes, and the actuator being electrically controlled in an open-loop.
Dependencies are inferred from the claim text.