公开(公告)号：US09752449B2

公开(公告)日：2017-09-05

申请号：US14457872

申请日：2014-08-12

Applicant: ROLLS-ROYCE PLC ,  FACC AG

Inventor： Kristofer John Bottome ,  James Andrew Lee ,  Paul Mason ,  Ewan Fergus Thompson ,  Gion Barandun ,  Markus Henne ,  Konstantin Horejsi ,  Martin Fleischmann ,  Christof Obertscheider ,  Thomas Keusch

IPC: F01D11/00

CPC classification number: F01D11/008 ,  F05D2250/712 ,  F05D2300/501 ,  F05D2300/603

Abstract: An annulus filler, mounted to a rotor disc of a gas turbine engine and bridging the gap between two adjacent blades attached to the rotor disc, is disclosed. The annulus filler, formed from a polymer matrix composite material, includes an outer lid, defining an airflow surface for air drawn through the engine in an axial airflow direction, and a support structure, connectable to the rotor disc, to support the rear of the lid on the rotor disc. The support structure has two support walls extending from opposing lateral sides of the lid to an attachment strap for receiving a hook on the rotor disc, the attachment strap bridging the support walls. Under centrifugal loads, the opposing support walls resiliently deform. Each support wall has a concave rear edge. Each rear edge has a first curved section, a second curved section and a substantially straight section therebetween.

公开(公告)号：US10328531B2

公开(公告)日：2019-06-25

申请号：US14877476

申请日：2015-10-07

Applicant: ROLLS-ROYCE PLC

Inventor： Ewan Fergus Thompson

IPC: F01D5/28 ,  B23K31/02 ,  F01D5/14 ,  F04D29/32 ,  F01D11/12 ,  B32B5/02 ,  B32B7/04 ,  B32B7/12 ,  B32B15/02 ,  B32B15/14 ,  B32B3/04 ,  F04D29/52

Abstract: A rotary device, comprises a central hub; and at least one blade extending from the hub; wherein the blade comprises a blade body and a blade cap, the blade body having a blade body tip, the blade cap being arranged to cover the blade body tip; and wherein the blade cap comprises a mesh.

公开(公告)号：US09951645B2

公开(公告)日：2018-04-24

申请号：US14700935

申请日：2015-04-30

Applicant: ROLLS-ROYCE PLC

Inventor： Dale Edward Evans ,  Ewan Fergus Thompson

IPC: F01D5/02 ,  F01D21/04 ,  F01D25/24 ,  F01D11/12 ,  F02K3/06

CPC classification number: F01D21/045 ,  F01D5/02 ,  F01D11/12 ,  F01D25/24 ,  F01D25/246 ,  F02K3/06 ,  F05D2220/32 ,  F05D2240/14

Abstract: A fan containment system for fitment around an array of radially extending fan blades mounted on a hub in an axial gas turbine engine. The fan containment system comprises an annular casing element for encircling an array of fan blades. An annular fan track liner is positioned substantially coaxial to the annular casing element. A hook projects in a generally radially inward direction from the annular casing element and is positioned axially forward of an array of fan blades when the fan containment system is fitted around said fan blades. Tabs protrude from the hook in a generally rearward direction and are spaced circumferentially along the hook. Fasteners connect the fan track liner to the tabs. The fasteners are configured so as to permit movement of the fan track liner towards the annular casing element when the fan track liner is impacted by a released fan blade.

公开(公告)号：US09739162B2

公开(公告)日：2017-08-22

申请号：US14457845

申请日：2014-08-12

Applicant: ROLLS-ROYCE PLC

Inventor： Kristofer John Bottome ,  Paul Mason ,  James Andrew Lee ,  Ewan Fergus Thompson

IPC: F01D11/08 ,  F01D11/00 ,  F01D5/02

CPC classification number: F01D11/08 ,  F01D5/02 ,  F01D11/008 ,  F05D2220/32 ,  F05D2220/36 ,  F05D2230/60 ,  F05D2240/55 ,  F05D2300/603 ,  F05D2300/6034

Abstract: An annulus filler is provided for mounting to a rotor disc of a gas turbine engine and bridging the gap between two adjacent blades attached to the rotor disc. The annulus filler is substantially entirely formed from a polymer matrix composite material. It has an outer lid which defines an airflow surface for air being drawn through the engine in an axial airflow direction, and a support structure which is connectable to the rotor disc to support the lid on the rotor disc. The support structure has two support walls extending from opposing lateral sides of the lid to an attachment strap for receiving a hook on the rotor disc, the attachment strap bridging the support walls. In use, under centrifugal loads, the opposing support walls resiliently deform to allow outward radial movement of the lid. Each support wall is thickened in a region neighboring the attachment strap.