公开(公告)号：US09989083B2

公开(公告)日：2018-06-05

申请号：US14746241

申请日：2015-06-22

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Michel Labbe

IPC: F16C17/02 ,  F01D11/00 ,  F16J15/16 ,  F16C33/76 ,  F01D25/12 ,  F02C7/28 ,  F02C7/06 ,  F16C43/02 ,  F16C33/74

CPC classification number: F16C17/02 ,  F01D11/003 ,  F01D25/125 ,  F02C7/06 ,  F02C7/28 ,  F05D2220/32 ,  F05D2230/60 ,  F05D2240/50 ,  F05D2240/55 ,  F05D2260/20 ,  F16C33/74 ,  F16C33/76 ,  F16C43/02 ,  F16C2360/23 ,  F16J15/162 ,  Y10S277/907 ,  Y10S277/93

Abstract: A seal and bearing assembly of a gas turbine engine having an engine case with a cooling fluid nozzle located between a bearing outer ring and ring segments, and a rotary shaft for rotation in the engine case around a main axis, the seal and bearing assembly can be assembled by positioning the engine case and the rotary shaft in axial alignment, and axially moving the engine case relative to the rotary shaft including moving the bearing outer ring across the axial location of the runner portion and into an assembled condition. The rotary shaft having mounted thereon a bearing inner ring and a runner assembly having a runner portion, a sleeve portion being concentric and radially internal to the runner portion, and a cooling fluid passage having a radial segment leading from an outgoing segment to a returning segment extending in a direction leading back toward the bearing inner ring.