| 摘要 |
<p>A rotary vane pumping machine (10) has a core structure (100, 200, 300) and peripheral components interfacing with the core structure. The core structure includes a stator assembly (200) defining a contoured surface of a stator cavity (210), a rotor (100) spinning around a rotor shaft axis that is fixed relative to the stator cavity, and end plates (300) disposed on either side of the rotor. The rotor has a plurality of radial vanes slots (130) for housing a corresponding plurality of vanes (120) that slide within the radial vane slot of the rotor. The plurality of vanes, stator cavity and rotor define a plurality of chamber cells (140). The core structure is substantially made of low coefficient of thermal expansion Invar materials to achieve precise non-contact sealing clearances between components of the machine.</p> |
