Abstract
In this research, a new type valve system using a conical spring and an electromagnetic actuator was developed: This system uses a conical spring, and is a low torque in a low-speed rotation. As a result, the energy loss in a low-speed rotation is decreased. However, the jump and bounce phenomena happen in the high-speed rotation region. Those are suppressed by using an electromagnetic actuator. It was confirmed to be able to decrease the load torque by using a conical spring in the experiment. Moreover, it was confirmed that the jump and bounce phenomena were suppressed by using the present electromagnetic actuator.
