Hollow-shaft ram-rotor based on shock wave compression technology

The invention discloses a hollow-shaft ram-rotor based on the shock wave compression technology. The hollow-shaft ram-rotor comprises a hollow shaft, a wheel disc assembly assembled with the hollow shaft in a synchronously rotating mode and an outer case arranged outside the wheel disc assembly in a covering mode, wherein a plurality of spiral separating plates are evenly distributed on the surface of the outer wall of the outer edge of a wheel disc of the wheel disc assembly, and the installation angles of all the spiral separating plates are identical; an air inlet flow channel is formed by a gap between every two adjacent spiral separating plates, and each air inlet flow channel is provided with an air flow compression section, a throat separating section and a triangular outlet extension section which are sequentially arranged from the inlet end to the outlet end. Each air flow compression section is a compression air channel with the radial gap being gradually reduced; each throat separating section is an equal-area passage with the radial gap kept unchanged; each triangular outlet extension section is an air channel with the radial gap kept unchanged, and the interior of the peripheral cylindrical surface of each triangular outlet extension section is triangular. According to the hollow-shaft ram-rotor adopting the technical scheme, fluid is compressed by a curved shock wave system, the supercharge ratio is high, and the hollow-shaft ram-rotor is simple and compact in overall structure and high in reliability.