Abstract: In a multiflow gas-dynamic pressure-wave machine, with a rotor, a housing surrounding the rotor as well as an air housing and a gas housing with ducts for the intake and discharge of the gaseous working substance, the cell ring of the rotor is subdivided by two intermediate pipes placed between a hub pipe and a shroud band into three concentric flows. The radially directed cell walls of the flows are mutually offset in the circumferential direction. The middle flow in the radial direction is dimensioned higher than the inner and outer flow. The cells of the three flows in the circumferential direction exhibit an uneven division.