Shaft assembly for a gas turbine engine

摘要

A shaft assembly (10) for a gas turbine engine includes a shaft (12), an annular fluid collection cavity (14), and a bearing (16). The shaft is rotatable around an axially extending shaft centerline (24). The annular fluid collection cavity is formed by an axial panel (34) extending between a forward radial panel (36) and an aft radial panel (38). The aft radial panel includes a plurality of fluid apertures (48), each fluid aperture having a center disposed at a first radius (52) from the shaft centerline. The bearing includes an inner race (56) having a shaft mounting surface (66) and a plurality of axially extending race fluid passages (76). The shaft mounting surface is engaged with an exterior surface of the shaft, and is disposed at a second radius (98) from the shaft centerline, wherein the second radius is less than the first radius. At least some of the axially extending race fluid passages (76) are fluidly connected with at least some of the fluid apertures in the aft radial panel.