Valve Mechanism for Spark-Ignition Engine with Linear motor

- Fundamental Consideration on Electromagnetic Characteristics -

Abstract

In recent year, high efficiency of automobile engines has been demanded for one of energy saving. However, the surging of valve spring and valve bounce are occurred by mechanical valve system. Therefore, the innovative technologies of efficiency of engine has to be established urgently. We design the system of engine valve which is capable of opening and closing by using linear motor. Our proposal valve system is able to be combustion efficiency improvement and decreasing pumping loss by arbitrary valve lift and timing. In this study, we focus on magnetization of permanent magnet installed in linear motor and consider electromagnetic characteristics to create a new valve system.