公开(公告)号：US20240167423A1

公开(公告)日：2024-05-23

申请号：US17990343

申请日：2022-11-18

Applicant: Collins Engine Nozzles, Inc.

Inventor： Thomas J. Ocken ,  Murtuza Lokhandwalla ,  Mark J. Kelly ,  Andrew M. Caldecutt ,  Jerry Logsdon ,  Nathan DeVore ,  Joseph Samo

IPC: F02C7/22 ,  B23H7/08 ,  B23H9/14

CPC classification number: F02C7/22 ,  B23H7/08 ,  B23H9/14 ,  F05D2220/323 ,  F05D2230/12 ,  F05D2260/607

Abstract: A method of manufacturing a last chance screen for an aircraft engine includes forming an array of holes through a metal sheet with a wire electrode using electrical discharge machining. The array of holes comprises a plurality of holes. Each hole of the plurality of holes comprises a first end and a second end and is surrounded by a wall section such that the last chance screen is defined by the plurality of holes and the plurality of wall sections. The first and second end of each hole are widened by either applying a flow of an abrasive flow medium to the array of holes in two directions or using a conical sinker electrode on either side of the metal sheet. Shaping the first and second end of each hole results in an airfoil-shaped cross-section of each wall section.

公开(公告)号：US12214303B2

公开(公告)日：2025-02-04

申请号：US17990343

申请日：2022-11-18

Applicant: Collins Engine Nozzles, Inc.

Inventor： Thomas J. Ocken ,  Murtuza Lokhandwalla ,  Mark J. Kelly ,  Andrew M. Caldecutt ,  Jerry Logsdon ,  Nathan DeVore ,  Joseph Samo

IPC: B01D29/00 ,  B01D39/10 ,  B23H7/02 ,  B23H7/08 ,  B23H9/14 ,  B24C1/08

Abstract: A method of manufacturing a last chance screen for an aircraft engine includes forming an array of holes through a metal sheet with a wire electrode using electrical discharge machining. The array of holes comprises a plurality of holes. Each hole of the plurality of holes comprises a first end and a second end and is surrounded by a wall section such that the last chance screen is defined by the plurality of holes and the plurality of wall sections. The first and second end of each hole are widened by either applying a flow of an abrasive flow medium to the array of holes in two directions or using a conical sinker electrode on either side of the metal sheet. Shaping the first and second end of each hole results in an airfoil-shaped cross-section of each wall section.

公开(公告)号：US11679435B2

公开(公告)日：2023-06-20

申请号：US17210757

申请日：2021-03-24

Applicant: Collins Engine Nozzles, Inc.

Inventor： Lukas Shea ,  Joseph Samo

IPC: B22F3/00 ,  B22F12/30 ,  B29C64/245 ,  B33Y30/00 ,  B33Y40/00

CPC classification number: B22F3/005 ,  B22F12/30 ,  B29C64/245 ,  B33Y40/00 ,  B33Y30/00 ,  Y02P10/25

Abstract: An additive manufacturing build plate system includes a plate body defining a build surface and a rear surface opposite the build surface. A peripheral surface extends between the rear surface and the build surface. At least one gripping feature is defined in the peripheral surface, extending inwardly into the plate body between the build surface and the rear surface.

公开(公告)号：US20240042696A1

公开(公告)日：2024-02-08

申请号：US18381280

申请日：2023-10-18

Applicant: Collins Engine Nozzles, Inc.

Inventor： Joseph Samo ,  Thomas J. Ocken ,  Nancy Hallbauer ,  Robert W. Vierhout

IPC: B29C64/386 ,  B29C64/153 ,  B29C64/255

CPC classification number: B29C64/386 ,  B29C64/153 ,  B29C64/255 ,  B33Y10/00

Abstract: A system comprising an additive manufacturing machine configured to fuse stock powder, a supply vessel connected to the additive manufacturing machine for supplying the stock powder to the additive manufacturing machine, and a weight sensor system connected to the supply vessel. A controller operatively is connected to the weight sensor system configured to receive signals indicative of a weight of the stock powder in the supply vessel. The controller is configured to determine weight of the stock powder based on the signals.

公开(公告)号：US11585275B2

公开(公告)日：2023-02-21

申请号：US17193390

申请日：2021-03-05

Applicant: Collins Engine Nozzles, Inc.

Inventor： Jason A. Ryon ,  Lev A. Prociw ,  Gregory A. Zink ,  Joseph Samo

IPC: F02C7/22 ,  F02C7/228 ,  F23R3/10 ,  F23R3/28

Abstract: A multipoint injection system includes a manifold with a plurality of flow passages defined through the manifold in the circumferential direction. The flow passages are spaced apart from one another in an axial direction. A plurality of feed arms extends radially inward from the manifold. Feed arm portions of the flow passages extend through each of the feed arms to respective outlets. The feed arm portions of the flow passages are within the axial width of the manifold. A plurality of injection nozzles are included, each in fluid communication with a respective one of the outlets. Each injection nozzle includes an air passage therethrough with an air inlet. The feed arms each follow a path that is circumferentially offset from the air inlets so each of the feed arms is clear from a flow path directly upstream in the axial direction of each of the air inlets.