公开(公告)号：US10753370B2

公开(公告)日：2020-08-25

申请号：US15602643

申请日：2017-05-23

Applicant: Rolls-Royce Corporation

Inventor： Christopher Hall ,  David Sayre

IPC: F04D29/46 ,  F04D27/00 ,  F04D29/08 ,  F04D29/28 ,  F04D29/42 ,  F04C27/00

Abstract: A variable diffuser for a centrifugal compressor comprises a passage between opposing disc faces and a plurality of vanes extending therethrough with a fixed angle relative to the engine centerline. Axial displacement between the opposing disc faces is variable. The vanes extend through one of the opposing disc faces as that disc face is axially translated.

公开(公告)号：US10260512B2

公开(公告)日：2019-04-16

申请号：US15212027

申请日：2016-07-15

Applicant: Rolls-Royce Corporation

Inventor： Christopher Hall ,  Graham Burkholder ,  Xuekun Sun ,  Jeff Crutchfield ,  Ben Hodgson

IPC: G01M15/14 ,  F04D27/00 ,  F02K3/06 ,  F01D5/34 ,  F01D21/00 ,  F04D29/32

Abstract: According to one aspect, a method of releasing a fan blade for testing a turbofan engine includes arranging an external shaped charge about an airfoil and modifying the airfoil by extricating one or more portions of material from one or more sides of the airfoil. The method further includes detonating the external shaped charge such that the airfoil is released at a selected time.

公开(公告)号：US20170122126A1

公开(公告)日：2017-05-04

申请号：US14928322

申请日：2015-10-30

Applicant: ROLLS-ROYCE CORPORATION

Inventor： Christopher Hall ,  Benedict N. Hodgson

IPC: F01D21/04 ,  F01D25/28 ,  F02C7/045

CPC classification number: F01D21/045 ,  B64D33/02 ,  F01D5/282 ,  F01D25/24 ,  F01D25/28 ,  F02C7/04 ,  F02C7/045 ,  F05D2240/14 ,  Y02T50/672

Abstract: According to one aspect, a fan blade containment apparatus for turbofan engines includes a containment hook and a fan case barrel. The containment hook and the fan case barrel are formed from composite materials, and the containment hook is attached to the fan case barrel such that the containment hook contains forward motion of a fan blade during a fan blade off event. The apparatus further includes the containment hook being arranged to shorten the axial length of the fan case barrel.

公开(公告)号：US10753369B2

公开(公告)日：2020-08-25

申请号：US15977465

申请日：2018-05-11

Applicant: Rolls-Royce Corporation ,  Rolls-Royce plc

Inventor： Christopher Hall ,  Glenn Knight

IPC: F04D29/44 ,  F04D29/46

Abstract: A variable diffuser comprises a passage, at least two vanes disposed within the passage, and at least two pennies. The passage is defined between opposing disk faces of a hub and a tip. Each of the vanes comprises a body having a leading edge and a trailing edge. The body extends between the hub face and the disk face. Each of the pennies is coupled to a respective vane body near an edge of the penny and an actuator. Rotation of at least one penny changes the orientation of the respective vane relative to the hub face.

公开(公告)号：US10174633B2

公开(公告)日：2019-01-08

申请号：US14928322

申请日：2015-10-30

Applicant: ROLLS-ROYCE CORPORATION

Inventor： Christopher Hall ,  Benedict N. Hodgson

IPC: F01D21/04 ,  F01D25/28 ,  F02C7/045 ,  B64D33/02 ,  F02C7/04 ,  F01D5/28 ,  F01D25/24

Abstract: According to one aspect, a fan blade containment apparatus for turbofan engines includes a containment hook and a fan case barrel. The containment hook and the fan case barrel are formed from composite materials, and the containment hook is attached to the fan case barrel such that the containment hook contains forward motion of a fan blade during a fan blade off event. The apparatus further includes the containment hook being arranged to shorten the axial length of the fan case barrel.

公开(公告)号：US20180340549A1

公开(公告)日：2018-11-29

申请号：US15602643

申请日：2017-05-23

Applicant: Rolls-Royce Corporation

Inventor： Christopher Hall ,  David Sayer

IPC: F04D29/46 ,  F04D27/00 ,  F04D29/28 ,  F04D29/42 ,  F04D29/08

Abstract: A variable diffuser for a centrifugal compressor comprises a passage between opposing disc faces and a plurality of vanes extending therethrough with a fixed angle relative to the engine centerline. Axial displacement between the opposing disc faces is variable. The vanes extend through one of the opposing disc faces as that disc face is axially translated.

公开(公告)号：US20180017071A1

公开(公告)日：2018-01-18

申请号：US15211756

申请日：2016-07-15

Applicant: Rolls-Royce Corporation

Inventor： Christopher Hall

IPC: F04D29/32 ,  F02K3/06 ,  F04D29/64

CPC classification number: F04D29/329 ,  B64C11/14 ,  F02C7/04 ,  F02K3/06 ,  F04D29/644 ,  F05D2220/36 ,  F05D2230/60 ,  F05D2240/12 ,  F05D2260/30

Abstract: An assembly for attaching a nose cone to a turbofan engine includes a single center bolt connector, a nose cone, and a turbofan hub. Further, the single center bolt connector couples the nose cone to the turbofan hub and axially clamps the nose cone to the turbofan hub.