公开(公告)号：US20190145268A1

公开(公告)日：2019-05-16

申请号：US16161288

申请日：2018-10-16

Applicant: ROLLS-ROYCE plc

Inventor： Ewan F. THOMPSON ,  Elliot CARTY

IPC: F01D5/22 ,  F01D11/00 ,  F01D5/30 ,  F02K3/06

Abstract: An annulus filler for mounting to a rotor disc in a gas turbine engine includes a body portion having a top wall arranged to bridge the gap between two adjacent blades extending from the rotor disc and to define an air flow surface for air passing between the blades; and a separately formed rear interface portion, fixed to the body portion adjacent to a down-flow end of the top wall. The rear interface portion forms a lip projecting below the top wall.

公开(公告)号：US20170356298A1

公开(公告)日：2017-12-14

申请号：US15598602

申请日：2017-05-18

Applicant: ROLLS-ROYCE PLC

Inventor： Elliot CARTY

IPC: F01D9/04

CPC classification number: F01D9/041 ,  F01D9/042 ,  F01D25/246 ,  F05D2220/32 ,  F05D2230/21 ,  F05D2300/10

Abstract: A stator vane for a gas turbine engine is provided. The stator vane has a platform surface from which an aerofoil extends, and a joggle surface that is circumferentially and radially displaced from the platform surface. Multiple stator vanes are arranged together to form a stator vane row, with each stator vane in the row remaining independent of the others. When the stator vanes are assembled together in a row, the joggle surface of one vane circumferentially overlaps a recess surface formed in a neighbouring vane. Because of the increased circumferential extent of the vanes, the vane is able to rotate in a retaining slot less than a conventional vane. This results in less wear and/or damage to the components.