Self-priming centrifugal lubricating oil pump of an exhaust gas turbocharger
AssigneeBBC Brown, Boveri & Company, Limited
InventorHansulrich Hoarler
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Abstract
In a self-priming centrifugal lubrication pump of an exhaust gas turbocharger, the pump rotor is fastened on the turbocharger shaft between two shaft bearings. A stationary oil ring channel is located on a larger diameter outside a rotating annulus of oil, which channel is connected via an oil branch pipe and an oil pressure pipe to the injection nozzles located at the side of the shaft bearings.
Claims3
A self-priming centrifugal lubricating oil pump of an exhaust gas turbocharger, of the type having a pump rotor located on the turbocharger shaft and provided with air vent ducts and an oil suction pipe having a lower end which communicates with an oil sump and an upper end which communicates with a hollow annular chamber, which chamber receives a rotating annulus of oil during operation due to the centrifugal force effect, the improvement comprising the pump rotor being fastened on the turbocharger shaft between two shaft bearings, a stationary U-shaped oil ring channel being located at a larger diameter outside the rotating annular chamber, said U-shaped oil ring channel being connected via an oil branch passage to injection nozzles located at the side of the shaft bearings.
Dependencies are inferred from the claim text.