公开(公告)号：US11486256B2

公开(公告)日：2022-11-01

申请号：US17113166

申请日：2020-12-07

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： San Quach ,  Tyler G. Vincent ,  Cheng Gao ,  Howard J. Liles

IPC: F01D5/18 ,  F01D5/14 ,  F01D5/28 ,  F01D25/24 ,  F01D9/04

Abstract: A vane arc segment includes an airfoil piece that defines first and second platforms and a hollow airfoil section that has an internal cavity and extends between the first and second platforms. The first platform defines a gaspath side, a non-gaspath side, and a flange that projects from the non-gaspath side. Support hardware supports the airfoil piece via the flange. There is a conformal thermal insulation blanket disposed on the flange.

公开(公告)号：US20220178260A1

公开(公告)日：2022-06-09

申请号：US17113166

申请日：2020-12-07

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： San Quach ,  Tyler G. Vincent ,  Cheng Gao ,  Howard J. Liles

IPC: F01D5/18 ,  F01D5/14 ,  F01D5/28

Abstract: A vane arc segment includes an airfoil piece that defines first and second platforms and a hollow airfoil section that has an internal cavity and extends between the first and second platforms. The first platform defines a gaspath side, a non-gaspath side, and a flange that projects from the non-gaspath side. Support hardware supports the airfoil piece via the flange. There is a conformal thermal insulation blanket disposed on the flange.

公开(公告)号：US11905847B1

公开(公告)日：2024-02-20

申请号：US17970917

申请日：2022-10-21

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Jonas Banhos ,  James T. Roach ,  Cheng Gao

IPC: F01D5/14 ,  F01D5/18 ,  F01D5/28 ,  F01D9/04

CPC classification number: F01D5/147 ,  F01D5/18 ,  F01D5/282 ,  F01D9/041 ,  F05D2220/32 ,  F05D2230/20 ,  F05D2240/12 ,  F05D2240/30 ,  F05D2300/603

Abstract: An airfoil includes an airfoil wall that has a span between first and second radial ends and that defines leading and trailing edges, pressure and suction sides each joining the leading and trailing edges, and an internal cavity. The internal cavity is divided into at least first and second sub-cavities extending over the span. The first sub-cavity defines a venturi tube.

公开(公告)号：US20240165764A1

公开(公告)日：2024-05-23

申请号：US17993342

申请日：2022-11-23

Applicant: Raytheon Technologies Corporation

Inventor： Zhigang Wang ,  Andrzej E. Kuczek ,  Robin H. Fernandez ,  John D. Riehl ,  Alan C. Barron ,  John Henry Shaw ,  Evan B. Callaway ,  Cheng Gao

IPC: B24B1/04 ,  B24B41/06 ,  B24B49/12 ,  B24B49/16

CPC classification number: B24B1/04 ,  B24B41/06 ,  B24B49/12 ,  B24B49/16

Abstract: A method of machining ceramic matrix composite components includes providing an ultrasonic vibration tool having a tool tip, and exciting the tool by providing a control current, such that the tool tip is repeatedly vibrated towards and away from a ceramic matrix composite workpiece. A slurry feed is supplied including abrasive particles to a surface to be machined by the tool tip. A vibration amplitude of the tool tip is controlled by sensing load on the tool and communicating with a computing device. The computing device controls the vibration amplitude of the tool tip. The computing device is provided with at least one memory programmed with historic data, and is operable to modify the vibration amplitude signal being sent to the tool, and comparing resulting load levels due to the change in vibration amplitude signals, and storing the change in vibration amplitude signals at the memory.