Semi-permeable media sealing an actuating shaft
AssigneeBorgWarner Inc.
InventorTimothy House
Life of this patent
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Abstract
To impede soot leakage around a shaft which extends through a bore connecting volumes of differing pressures, e.g., a turbocharger turbine housing and the ambient air, a soot seal is provided to capture particulate matter while allowing the passage of gas.
Claims15
A turbocharger with a turbine housing, a device within the turbine housing actuated by an actuating mechanism located outside the turbine housing, a shaft which is rotatably mounted in a bore extending through the turbine housing or the bearing housing for transmitting an actuating movement from the actuating mechanism to the device, wherein a sealing material is provided to seal the bore, and wherein the sealing material is gas permeable and adapted to trap soot particles.
Dependencies are inferred from the claim text.