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US 9,086,055 B2Granted
Lubrication of fluid turbine gearbox during idling or loss of electric grid
AssigneeGeneral Electric Company
InventorsPradip Radhakrishnan Subramaniam, Edwin Hidding, Michael Jay Burkett, Stephen Bertram Johnson, Mayank Tiwari
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Abstract
A lubrication system for a fluid turbine is provided. The system includes a supply subsystem for providing oil via an oil tank or a hydraulic accumulator to a gearbox of the fluid turbine for lubrication during at least one of idling or loss of electric grid. The system also includes a control subsystem for controlling the flow in the lubrication system.
Claims12
A lubrication system for a fluid turbine gearbox, the lubrication system comprising:
- a supply subsystem for providing oil via an oil tank or a hydraulic accumulator to a gearbox of the fluid turbine for lubrication during at least one of idling or loss of electric grid;
- and
- at least one solenoid valve for allowing oil to flow from the supply subsystem to the gearbox in the absence of electricity being supplied to the at least one solenoid valve for converting a dry sump gearbox to a wet sump gearbox and providing splash lubrication;
- a control subsystem for providing electricity to the at least one solenoid valve to maintain the at least one solenoid valve in a closed position when no idling or loss of electric grid conditions are occurring.
1 more element
Dependencies are inferred from the claim text.