Types Of Seals Used In A Gas Turbine Engine

Oil Seals

The oil seals maybe 

1. The labyrinths 
2. Thread (helical) type
3. Carbon Type

Carbon Type Seal

These seals are usually spring-loaded and are similar in material and application to the carbon brushes used in electrical motors Carbon seals rest against a surface provided to create a sealed bearing cavity or void Thus, the oil is prevented from leaking out along the shaft into the compressor airflow or the turbine section.

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