公开(公告)号：US11078839B2

公开(公告)日：2021-08-03

申请号：US15876574

申请日：2018-01-22

Applicant: Rolls-Royce Corporation

Inventor： Robert Heeter ,  Matthew J. Kappes ,  Benedict N. Hodgson

IPC: F01D25/00 ,  F02C7/04 ,  C08L77/10 ,  C08J5/04 ,  F02C7/05 ,  B29C70/08 ,  F01D5/28

Abstract: The disclosure describes composite nosecones and techniques for forming composite nosecones including a matrix material, relatively higher-modulus reinforcement elements, and relatively tougher polymer-based reinforcement elements. An example composite nosecone includes a body substantially symmetrical around a central axis. The body includes a side wall defining a diameter of the body that increases from a forward side of the body to an aft side of the body. The body includes a composite material including a plurality of relatively higher-modulus reinforcement elements, a plurality of relatively tougher polymer-based reinforcement elements, and a matrix material substantially encapsulating the plurality of relatively higher-modulus reinforcement elements and the plurality of relatively tougher polymer-based reinforcement elements. The plurality of relatively higher-modulus reinforcement elements are different from the plurality of relatively tougher polymer-based reinforcement elements.

公开(公告)号：US20200318540A1

公开(公告)日：2020-10-08

申请号：US16376767

申请日：2019-04-05

Applicant: Rolls-Royce Corporation

Inventor： Jeff Higbie ,  Robert Heeter ,  Ben Hodgson ,  Jon Rivers

IPC: F02C7/045 ,  F02C7/24

Abstract: Systems and methods are presented for dampening noise in a rotating machine having a rotatable shaft defining an axis of rotation. An acoustic panel assembly may comprise an annular casing, a hook, and an acoustic panel carried by the hook. The acoustic panel comprises a radially inner skin, a radially outer skin, and an acoustic treatment member having a plurality of walls extending between the radially inner skin and the radially outer skin thereby defining a plurality of radially oriented cells. A portion of the cells adjacent a first axial edge of the acoustic panel are filled with a reinforcement material and shaped to form a lip having sufficient strength to support a portion of the acoustic panel. The panel is positioned so that the lip is axially and radially retained by the hook.

公开(公告)号：US11313324B2

公开(公告)日：2022-04-26

申请号：US16382354

申请日：2019-04-12

Applicant: Rolls-Royce Corporation

Inventor： Jeff Higbie ,  Robert Heeter ,  Ben Hodgson ,  Jon Rivers

IPC: F02K1/82 ,  F02C7/24 ,  B32B3/12 ,  B64D33/02 ,  F01D25/04

Abstract: Systems and methods are presented for acoustic dampening in a rotating machine. The rotating machine has a rotatable shaft defining an axis of rotation and a gas flowpath. A system comprises an acoustic panel affixed to an annular casing. The acoustic panel comprises an acoustic treatment member extending between a radially inner skin and radially outer skin. The radially inner skin extends the full axial and circumferential dimensions of the acoustic panel, and the acoustic treatment member overlays the entirety of the radially inner skin. The acoustic panel is positioned so that the radially outer skin abuts the casing, the abutting surfaces being configured to effect relative axial movement between the surfaces while maintaining contact between the surfaces. The acoustic panel is affixed in position to the casing by one or more fasteners passing through the casing and a portion of the radially outer skin.

公开(公告)号：US20210355833A1

公开(公告)日：2021-11-18

申请号：US15930158

申请日：2020-05-12

Applicant: Rolls-Royce Corporation

Inventor： Robert Heeter ,  Matthew J. Kappes ,  Jonathan Michael Rivers ,  Benedict N. Hodgson

IPC: F01D5/28 ,  F01D9/02

Abstract: A composite aerofoil may include an aerofoil body defining a leading edge and a trailing edge, wherein the body comprises a composite material including a plurality of relatively higher-modulus reinforcement elements, a plurality of relatively tougher polymer-based reinforcement elements, and a matrix material substantially encapsulating the plurality of relatively higher-modulus reinforcement elements and the plurality of relatively tougher polymer-based reinforcement elements. The plurality of relatively higher-modulus reinforcement elements are different from the plurality of relatively tougher polymer-based reinforcement elements. The disclosure also describes techniques for forming composite aerofoils.

公开(公告)号：US11008887B2

公开(公告)日：2021-05-18

申请号：US16229615

申请日：2018-12-21

Applicant: Rolls-Royce Corporation

Inventor： Christopher Hall ,  Matthew Kappes ,  Glenn Patterson ,  Robert Heeter

IPC: F01D21/04 ,  F01D25/24 ,  F01D25/26

Abstract: A containment assembly is disclosed for a turbofan engine. The containment assembly comprises a forward fence, an aft fence, a fan track liner, an intermediate casing member, an outer casing member, and an annular nesting cavity. The fan track liner is disposed axially between the forward and aft fences. The intermediate casing member is disposed radially outward of at least a portion of the fan track liner. The outer casing member is disposed radially outward of at least a portion of the intermediate member. The annular nesting cavity is bounded at least in part by the intermediate casing member and the outer casing member.

公开(公告)号：US11352953B2

公开(公告)日：2022-06-07

申请号：US16376767

申请日：2019-04-05

Applicant: Rolls-Royce Corporation

Inventor： Jeff Higbie ,  Robert Heeter ,  Ben Hodgson ,  Jon Rivers

IPC: F02C7/045 ,  F02C7/24

Abstract: Systems and methods are presented for dampening noise in a rotating machine having a rotatable shaft defining an axis of rotation. An acoustic panel assembly may comprise an annular casing, a hook, and an acoustic panel carried by the hook. The acoustic panel comprises a radially inner skin, a radially outer skin, and an acoustic treatment member having a plurality of walls extending between the radially inner skin and the radially outer skin thereby defining a plurality of radially oriented cells. A portion of the cells adjacent a first axial edge of the acoustic panel are filled with a reinforcement material and shaped to form a lip having sufficient strength to support a portion of the acoustic panel. The panel is positioned so that the lip is axially and radially retained by the hook.

公开(公告)号：US11162425B2

公开(公告)日：2021-11-02

申请号：US16437966

申请日：2019-06-11

Applicant: Rolls-Royce Corporation

Inventor： Mark Fleckenstein ,  Jonathan Rivers ,  Robert Heeter

IPC: F01D25/28 ,  F02C7/20 ,  F01D25/24

Abstract: An assembly fixture for a fan casing of a gas turbine engine wherein the fan casing includes a casing having a flange with a plurality of apertures extending therethrough, comprises a locating structure having a positioning feature that is engageable by a fastener extending through a particular aperture of the plurality of apertures to secure the locating structure to the fan casing. The locating structure further includes a locating feature indicating a particular location of the fan casing when the locating structure is mounted to the fan casing.

公开(公告)号：US10746031B2

公开(公告)日：2020-08-18

申请号：US16037980

申请日：2018-07-17

Applicant: Rolls-Royce Corporation

Inventor： Robert Heeter ,  Matthew J. Kappes

IPC: F01D5/30 ,  F01D11/00

Abstract: An annulus filler may include an outer lid defining an airflow surface for air being drawn through the engine in an axial airflow direction and a support structure configured to connect the outer lid to a rotor disc. The annulus filler may include a composite material including a plurality of relatively high-modulus reinforcement elements, a plurality of relatively tough polymer-based reinforcement elements, and a matrix material substantially encapsulating the plurality of relatively high-modulus reinforcement elements and the plurality of relatively tough reinforcement elements.

公开(公告)号：US20190112934A1

公开(公告)日：2019-04-18

申请号：US16037980

申请日：2018-07-17

Applicant: Rolls-Royce Corporation

Inventor： Robert Heeter ,  Matthew J. Kappes

IPC: F01D5/30

CPC classification number: F01D5/30 ,  F01D11/008 ,  F05D2220/32 ,  F05D2220/36 ,  F05D2230/20 ,  F05D2230/21 ,  F05D2230/41 ,  F05D2230/90 ,  F05D2240/30 ,  F05D2300/2102 ,  F05D2300/224 ,  F05D2300/43 ,  F05D2300/433 ,  F05D2300/6012 ,  F05D2300/603

Abstract: An annulus filler may include an outer lid defining an airflow surface for air being drawn through the engine in an axial airflow direction and a support structure configured to connect the outer lid to a rotor disc. The annulus filler may include a composite material including a plurality of relatively high-modulus reinforcement elements, a plurality of relatively tough polymer-based reinforcement elements, and a matrix material substantially encapsulating the plurality of relatively high-modulus reinforcement elements and the plurality of relatively tough reinforcement elements.

公开(公告)号：US11506083B2

公开(公告)日：2022-11-22

申请号：US16891928

申请日：2020-06-03

Applicant: Rolls-Royce Corporation

Inventor： Matthew J. Kappes ,  Robert Heeter ,  Jonathan Michael Rivers ,  Benedict N. Hodgson

IPC: F01D25/24 ,  F01D21/04 ,  F01D25/00 ,  F02C7/045

Abstract: Composite liners (such as acoustic panels, fan track liners, and/or ice impact panels or boxes for turbofan engines) and techniques for forming composite liners. In some examples, the composite liner includes at least one region comprising a reinforcement architecture comprising a matrix material, a plurality of relatively tough polymer-based reinforcement elements, and a plurality of second reinforcement elements. The plurality of relatively tough polymer-based reinforcement elements and the plurality of second reinforcement elements are embedded in the matrix material.