Magnetic thrust bearing with pumping effect
AssigneeNuovo Pignone Tecnologie Srl
InventorsMassimiliano ORTIZ NERI, Francesco CANGIOLI, Davide BILIOTTI, Duccio FIORAVANTI
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Abstract
The magnetic thrust bearing has a rotor assembly comprising a thrust disk. The thrust disk is arranged to rotate around an axis (X) and to receive a cooling fluid at an inner area around the axis (X) and discharge it in an outer area around the periphery of the thrust disk. The thrust disk comprises a plurality of blades located at the periphery of the thrust disk that are configured to pump the fluid as a result of rotation of the rotor assembly, in order to avoid the use of an external blower or additional impeller to flow the cooling fluid and preferably to allow the cooling fluid recirculation in a closed loop configuration.
Claims17
A magnetic thrust bearing comprising:
- a rotor assembly configured to rotate, wherein the rotor assembly comprises a thrust disk having a first side and a second side,
- a stator assembly, wherein the stator assembly comprises a magnet assembly acting on the thrust disk, wherein the magnetic thrust bearing is configured to be cooled by a fluid, wherein at least the first side of the thrust disk is configured to receive the fluid and an outer periphery of the thrust disk is configured to discharge the fluid,
- wherein the thrust disk comprises a plurality of blades at said outer periphery, wherein the plurality of blades is configured to pump the fluid as a result of rotation of the rotor assembly.
Dependencies are inferred from the claim text.