Fluid machine flow path with axial gap concentration smaller than 1

摘要

The flow machine has at least one bladed rotor and at least one bladed stator. The rotor is in a housing on a rotating shaft. The annular channel has a surface cross-section in at least one rotor and stator downstream of it leading to an axial gap concentration KX1 between a first rotor and stator and an axial gap concentration KX2 between a second stator and rotor meeting the following conditions: KX1 and KX2 are between 0.8 and 1.0.