OIL SCAVENGE SYSTEM HAVING CHURNING DAMPER FOR GAS TURBINE ENGINES

摘要

An oil scavenge system of a gas turbine engine in accordance with one embodiment of the present invention, comprises a housing (32) defined about an axis of rotation, the housing (32) confining an air/oil mixture in motion within the housing (32) and defining an oil scavenge area (46) below the axis of rotation. The housing (32) further includes an outlet (48) at a low location of the housing (32). A churning damper (40) is supported within the housing (32) and is located in the oil scavenge area (46). The churning damper (40) includes at least one plate (42), allowing the air/oil mixture in motion to pass over or through the plate (42) only in a peripheral area of the at least one plate (42) to cause flow energy dissipation.