| 摘要 |
The gas friction pump comprises a housing (1) with a suction aperture (2) and a gas outlet aperture (3), with rotor (12) and stator (14) components in the housing for feed of gases and the production of a pressure state. On the side of the suction aperture within the housing, a sngle or multi-stage concave pump unit (20) is fitted, which has a gas-conveying structure. The gas-conveying structure is so formed that a gas delivery occurs in a radial direction. The rotor parts (21) of this pump unit and those (12) of the gas friction pump are located on the same rotor shaft (4). |
