Patent ID: 8308426
Filing Date: 2012-11-13
Classification: F01D,F05D,F16C

Abstract:
1. A shaft assembly for a gas turbine engine, comprising: a shaft rotatable around an axially extending shaft centerline; an annular fluid collection cavity formed by an axial panel extending between a forward radial panel and an aft radial panel, which aft radial panel includes a plurality of fluid apertures, each fluid aperture having a center disposed at a first radius from the shaft centerline; and a bearing including an inner race having a shaft mounting surface and a plurality of axially extending race fluid passages, which shaft mounting surface is engaged with an exterior surface of the shaft and is disposed at a second radius from the shaft centerline, and which second radius is less than the first radius, wherein at least some of the axially extending race fluid passages are fluidly connected with at least some of the fluid apertures in the aft radial panel; and further comprising an annular seal plate mounted onto the shaft adjacent to and aft of the bearing, which seal plate includes a plurality of seal plate fluid passages fluidly connected to at least some of the axially extending race fluid passages.