Examination of Miniaturization Using a Double Stator for a Free-Piston Engine Linear Generator System

A free-piston engine linear generator (FPEG) system is a linear generator, which generates electricity when a free piston reciprocates the combustion thrust produced by internal combustion. It is expected that this system can be applied to hybrid vehicles. In this paper, we propose a cylindrical double stator linear synchronous generator to exclude the back yoke of the mover and to improve the gap magnetic flux density.