ACTUATOR FOR SOLENOID DRIVING VALVE AND VALVE SYSTEM OF INTERNAL COMBUSTION ENGINE AND ELECTROMAGNETICALLY DRIVING METHOD OF VALVE ELEMENT

摘要

PROBLEM TO BE SOLVED: To facilitate mounting on a vehicle, and reduce weight and a cost by making the constitution of an actuator for a solenoid driving valve compact. SOLUTION: Two movable pieces 65 and 67 are arranged to a single electromagnet 63. The electromagnet 63 can form a magnetic pole in upper and lower both end surfaces by winding a coil in the illustrated vertical direction on a core.