公开(公告)号：US20180218723A1

公开(公告)日：2018-08-02

申请号：US15421935

申请日：2017-02-01

Applicant: General Electric Company ,  MRA Systems, LLC

Inventor： Wendy Wenling Lin ,  Michael Moses Martinez ,  Rudramuni Kariveerappa Majjigi ,  David Patrick Calder ,  Aaron Goldsholl

IPC: G10K11/172 ,  G10K11/168 ,  B32B3/12 ,  B32B7/12

CPC classification number: G10K11/172 ,  B32B3/12 ,  B32B7/12 ,  B32B2305/022 ,  B32B2305/024 ,  B32B2307/102 ,  G10K11/168

Abstract: An acoustic liner and a method of attenuating noise are provided. The acoustic liner includes a face sheet, a back sheet spaced from the face sheet, and a core layer extending between the face sheet and the back sheet. The core layer includes a plurality of resonant cells, each resonant cell including at least one cell wall coupled to the back sheet along a cell wall base edge. The at least one cell wall extends from the back sheet at an angle toward the face sheet. The at least one cell wall further coupled to the face sheet along a cell wall top edge. The resonant cell is formed in a predetermined shape and contains a volume in a space defined by the at least one cell wall, the back sheet, and the face sheet. The cell wall base edge length is greater than the cell wall top edge length.

公开(公告)号：US20220093073A1

公开(公告)日：2022-03-24

申请号：US17540341

申请日：2021-12-02

Applicant: General Electric Company ,  MRA Systems, LLC

Inventor： Wendy Wenling Lin ,  Michael Moses Martinez ,  Rudramuni Kariveerappa Majjigi ,  David Patrick Calder ,  Aaron Goldsholl

IPC: G10K11/172 ,  G10K11/168 ,  B32B3/12 ,  B32B7/12

Abstract: An acoustic liner is provided. The acoustic liner includes a face sheet, a back sheet spaced from the face sheet, and a core layer defining a cellular structure disposed between the face sheet and the back sheet. The core layer includes a plurality of first resonant cells coupled to the back sheet. Each of the first resonant cells includes a first cell wall coupled to the back sheet along a first cell wall base edge, the first cell wall extending from the back sheet toward the face sheet, the first cell wall further coupled to the face sheet along a first cell wall top edge, wherein the first cell wall of each of the first resonant cells comprises a surface extension that extends from a surface of the first cell wall.

公开(公告)号：US11227576B2

公开(公告)日：2022-01-18

申请号：US16415754

申请日：2019-05-17

Applicant: General Electric Company ,  MRA Systems, LLC

Inventor： Wendy Wenling Lin ,  Michael Moses Martinez ,  Rudramuni Kariveerappa Majjigi ,  David Patrick Calder ,  Aaron Goldsholl

IPC: G10K11/172 ,  G10K11/168 ,  B32B3/12 ,  B32B7/12

Abstract: An acoustic liner and a method of attenuating noise are provided. The acoustic liner includes a face sheet, a back sheet spaced from the face sheet, and a core layer extending between the face sheet and the back sheet. The core layer includes a plurality of resonant cells, each resonant cell including at least one cell wall coupled to the back sheet along a cell wall base edge. The at least one cell wall extends from the back sheet at an angle toward the face sheet. The at least one cell wall further coupled to the face sheet along a cell wall top edge. The resonant cell is formed in a predetermined shape and contains a volume in a space defined by the at least one cell wall, the back sheet, and the face sheet. The cell wall base edge length is greater than the cell wall top edge length.

公开(公告)号：US10995699B2

公开(公告)日：2021-05-04

申请号：US15898723

申请日：2018-02-19

Applicant: MRA Systems, LLC.

Inventor： Andrew Michael Roach ,  Graham Frank Howarth ,  David Patrick Calder

IPC: F02K1/72 ,  F02K1/54 ,  F02K1/64

Abstract: A thrust reverser cascade can include a peripheral frame having at least one side. At least one plate can be mounted to the at least one side and have a plurality of spaced grooves. In addition, a plurality of vanes can include corresponding terminal ends positioned in the plurality of spaced grooves.

公开(公告)号：US20200309028A1

公开(公告)日：2020-10-01

申请号：US16370124

申请日：2019-03-29

Applicant: General Electric Company ,  MRA Systems, LLC

Inventor： Shanmugam Murugappan ,  Michael Moses Martinez ,  Egbert Geertsema ,  Rudramuni Kariveerappa Majjigi ,  Richard David Cedar ,  Wendy Wenling Lin ,  Robert William Davidoff ,  David Patrick Calder ,  Graham Frank Howarth

IPC: F02C7/045 ,  F02K1/82 ,  F04D29/66

Abstract: An acoustic liner may include an acoustic core having an array of resonant cells, and an acoustic screen disposed across the array of resonant cells. The resonant cells include a plurality of cell walls and a resonant space defined by the plurality of cell walls. The acoustic core may include a folded acoustic core. Additionally, or in the alternative, at least some of the resonant cells may include an oblique polyhedral cellular structure and/or a multitude of sound-attenuating protuberances. The acoustic screen may include a reticulate membrane and a support lattice.

公开(公告)号：US10337408B2

公开(公告)日：2019-07-02

申请号：US15176513

申请日：2016-06-08

Applicant: MRA Systems, LLC

Inventor： Andrew Michael Roach ,  David Patrick Calder ,  Graham Frank Howarth

IPC: F02C7/12 ,  B64D27/10 ,  B64D29/00 ,  F01D25/14 ,  F02C7/24 ,  B64C1/40 ,  F16L59/00

Abstract: A thermal insulation blanket assembly having a thermal insulation blanket including an aerogel insulation material having a first surface and a second surface that is oppositely-disposed from the first surface, a backing covering the second surface of the aerogel insulation material, and a skin layer covering the first surface of the aerogel insulation material.