| 摘要 |
The invention pertains to a dry vacuum pump comprising at least one rotating shaft (11) mounted on at least one lubricated bearing (5) and at least one sealing device (9) for sealing off lubricating fluids capable of entering the shaft passage from said bearing (5), said sealing device (9) being installed between the lubricated bearing (5) and a dry pumping stage (7), characterized in that said sealing device (9) comprises a centrifuge element (17) designed to rotate in unison on said shaft (11) and comprising at least one through line (19) capable of separating the lubricating fluids from the fluid that may travel from said bearing (5) to the dry pumping stage (7). |
