Patent ID: 6332451
Filing Date: 2001-12-25
Classification: F05C,F16K

Abstract:
A rotary valve actuator arrangement, comprising:a casing having an intake air passage;a rotary valve disposed within said casing, said rotary valve including a valve shaft rotatable about an axis and a valve body disposed on said valve shaft and rotatable therewith to open and close the intake air passage, said valve body having a closed position and a full open position; andan electromagnetic actuator moving said valve body toward the full open position, said electromagnetic actuator including a stator core, a coil wound on said stator core, and a rotor opposed to said stator, said rotor being fixed to said valve shaft, said rotor having a valve-closing position corresponding to the closed position of said valve body and a valve-opening position corresponding to the full open position of said valve body;said stator core and said rotor cooperating to generate a magnetic field passing therethrough upon said coil being energized, said rotor being rotatably moved toward the valve-opening position by a magnetic attraction caused by the magnetic field.