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AssigneeAlcatel Lucent
InventorsAlbert Cacard, Francois Houze
Estimating the term…
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).
A dry vacuum pump comprising at least one rotating shaft mounted on at least one lubricated bearing and at least one sealing device for sealing off lubricating fluids capable of entering the shaft passage from said bearing, said sealing device being installed between the lubricated bearing and one dry pumping stage;
A lubricated fluid sealing device including a centrifuge element installed so as to rotate in unison upon a rotating shaft of a dry vacuum pump, said centrifuge element being between a lubricated bearing and a dry pumping stage, and comprising at least one through line through which a mixture of lubricating fluids and gas may travel from the bearing to the dry pumping stage and configured to separate the lubricating fluids from the gas.
Dependencies are inferred from the claim text.