ACTUATOR FOR VISCOUS CLUTCH WITH MAGNETIC OIL CIRCULATION VALVE OPERATION IN CLUTCH SHAFT IN RELATION TO ACTUATOR ACHIEVING CONTROL OF OTHER COMPONENTS IN MECHANICAL ENVIRONMENT HAVING ROTATING PARTS RECEIVED IN VERY NARROW SPACE

摘要

PURPOSE: An actuator for a viscous clutch having magnetic oil circulation valve operation in a clutch shaft is provided to reduce the size of individual component to reduce the whole size of the viscous clutch. CONSTITUTION: In an actuator for operating a valve for controlling oil throughput of a viscous clutch(1), the actuator functionally cooperates with a rotating part of the viscous clutch like a clutch shaft. The actuator has a primary actuator(7) mounted by a bearing(13) allowing the rotation of the primary actuator for the clutch shaft or the like. The clutch shaft or the like has a hollow cylinder-type area. The primary actuator is arranged in the hollow cylinder-type area. The primary actuator and the clutch shaft or the like have units(1a,3,4,5,8,9) for transmitting control action of the primary actuator to the outside from the inside of the hollow cylinder-type area. The primary includes a solenoid coil.