A Working Air-gap and Magnetic Circuit Topology Analysis based Method for Straightly-Acting Solenoid Valve Design

This paper analyzes the characteristic of magnetic circuit of solenoid valve electromagnetic mechanism, and proposes an electromagnetic mechanism design method based on working air gap (WAG) analysis, and analyzes the critical phenomenon of ampere turns. According to the requirements of output force and response time, a new structure of a magnetic circuit of solenoid valve is designed. through finite element analysis(FEA) and prototype test, verify the proposed requirements.