Hydraulic machine
AssigneeKvaerner Turbin Aktiebolag
InventorsConny Thyberg, Thomas Nilsson
Life of this patent
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Abstract
A device is used in a hydraulic machine of the type which comprises a runner or rotor with a hub body and vanes or blades which are rotatably journalled in bearings in the hub body, and which has at least one chamber which communicates with the bearings. The device comprises an oil supply to the bearings and elements for leading oil away from the chamber at pace with the supply of oil, such that the chamber is caused to contain an essentially constant volume of oil, which is smaller than the total volume of the chamber, which oil volume is pressed towards the peripheral wall of the chamber by the centrifugal force at the rotation of the runner.
Claims12
A device in a hydraulic machine having a runner or rotor with a hub body and vanes or blades which are rotatably journalled in bearings in the hub body, which has at least one chamber which communicates with the bearings, the device comprising:
- first means for supplying oil to the bearings;
- means for leading away oil from the chamber at a pace with the supply of oil, such that the chamber is caused to contain an essentially constant volume of oil, which is smaller than the total volume of the chamber, which oil volume is pressed towards a peripheral wall of the chamber by centrifugal force from rotation of the runner or rotor;
- and
- a pump for pumping oil away from the oil volume at the same pace as oil is supplied to the same oil volume via the first means.
Dependencies are inferred from the claim text.