To provide a high efficient rotation movement generating engine mainly inputting linear pressurizing pressure.

A differential gear or a differential roller is installed on a surface of a rotor, and side surfaces of planetary gear and a planetary roller are tilted and pressurized by a bevel strut. A pressurizing mechanism conducts pressurization by using an actuator by fluid, electricity, and magnet and an adjusting screw through a spring, and the pressurizing mechanism is a prime mover inputting especially linear pressurizing pressure and generating rotation movement energy.