Abstract
This paper proposes a new type of electromagnetic valve actuator for engine valve drive. The cylindrical actuator has bias permanent magnet on the side wall which produces holding force. When the driving current flows and cancels the holding force, the armature starts moving to the opposite position. First, the concept of electromagnetic valve actuator is explained. Then the value actuator is designed using FEM. The experimental setup is made to confirm the capability of the proposed actuator. The experimental results showed admissible characteristics. In order to reduce the landing speed and the power consumption, the energy regenerative driving circuit is proposed. The results showed relatively good performance and high possibility for practical application.
