To provide a high pressure generating method having a high efficiency comparing with a conventional compression mechanism having a fluid resistance, and a high efficiency compressor using it by utilizing shock compression in a subsonic zone formed after a shock wave surface.

The compressor is composed of a casing 10, a rotor 14 enclosing the casing 10, a low pressure intake part 20, and a high pressure delivery part 21. Protrusion parts 19 are disposed on an outer periphery of the rotary member 16 of the rotor 14, and are supersonically rotated in a cylindrical air tightness container 13 so as to generate shock wave.