基本信息:
- 专利标题： MULTI-STAGE DRY VACUUM PUMP
- 专利标题（中）：多级干式真空泵
- 申请号：PCT/IB2001/001412 申请日：2001-08-03
- 公开(公告)号：WO02012723A1 公开(公告)日：2002-02-14
- 主分类号： F04B27/06
- IPC分类号： F04B27/06
摘要：
A dry vacuum pump consisting of at least two stages of pumping disposed in series, in which a rotor (20) contains two cylinder bores (20a, 20b) within which two piston assemblies (31) and (32) are caused to reciprocate by means of a crank mechanism. The cranks are positioned inside the pistons and operate within slots which pierce the body of each piston assembly. A static crankshaft (27) extends the length of the rotor (20) and is internal to the rotor. The shaft passes through the piston assemblies via the slots. The piston assemblies are thus caused to reciprocate synchronously with the rotation of the rotor in antiphase to each other. The rotor is caused to rotate within a static, hermetically-sealed stator body (30) by means of an external motor.
摘要（中）：
一种干式真空泵，由串联设置的至少两级泵送组成，其中转子（20）包含两个气缸孔（20a，20b），其中使两个活塞组件（31）和（32）通过装置往复运动 的曲柄机构。 曲柄定位在活塞内部并在穿过每个活塞组件的主体的槽内操作。 静态曲轴（27）延伸转子（20）的长度并且在转子内部。 轴经由槽穿过活塞组件。 因此，活塞组件与转子的旋转同步地相互反向地往复运动。 通过外部电动机使转子在静态密封的定子体（30）内旋转。
IPC结构图谱:
| F | 机械工程；照明；加热；武器；爆破 |
| --F04 | 液体变容式机械；液体泵或弹性流体泵 |
| ----F04B | 液体变容式机械；泵 |
| ------F04B27/00 | 以缸数量或排列为特点的多缸泵 |
| --------F04B27/04 | .具有星形或扇形排列的缸 |
| ----------F04B27/06 | ..缸是可动的，例如旋转的 |