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US 12,612,972 B2Granted
Drain valve sealing arrangement
AssigneeGoodrich Corporation
InventorsPaweł Świrniak, Krzysztof Słomiany, Piotr Kroczek, Adrian Tarnowski
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Abstract
A sealing arrangement for a ball valve. The sealing arrangement includes a hydraulic fluid injection port configured to receive pressurised fluid from a pressurised fluid source, and a plurality of fluid channels connected to the injection port and configured to be arranged, in use, around the interior of the ball valve to direct the pressurised fluid to a gap between a seal of the ball valve and a housing of the ball valve to exert a force on the seal towards a ball of the ball valve.
Claims12
A ball valve assembly comprising:
- a seal, a ball and a valve housing, the ball valve assembly further comprising:
- a hydraulic fluid injection port on the housing configured to receive pressurized fluid from a pressurized fluid source;
- and
- a plurality of fluid channels formed in the valve housing and connected to the injection port arranged around an interior of the ball valve assembly to direct the pressurized fluid to a gap between the seal and the valve housing of the ball valve assembly to exert a force on the housing and on the seal to force the seal towards the ball of the ball valve assembly.
1 more element
Dependencies are inferred from the claim text.