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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
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.
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公开(公告)号：US12270343B2
公开(公告)日：2025-04-08
申请号：US18224843
申请日：2023-07-21
Applicant: Collins Engine Nozzles, Inc.
Inventor： Brandon P. Williams , Michael Ferrarotti , Murtuza Lokhandwalla , Todd Haugsjaahabink , Russell P. Rourke, Jr. , Jay W. Kokas , Richard E. Versailles , Charles E. Reuter , Kevin Gibbons , Jesse C. Peters , Jason A. Ryon
Abstract: A fuel injector for a turbine engine includes a fuel scheduling valve configured for regulation of fuel flow from a fuel inlet, in response to fuel pressure received at the fuel inlet. Primary, secondary and auxiliary fuel circuits receive fuel from the scheduling valve, and an electrically-controlled valve is provided in fluid communication with the auxiliary circuit, which electrically-controlled valve is adapted and configured to actively control fuel through the auxiliary circuit in response to a control signal.
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公开(公告)号：US12286931B2
公开(公告)日：2025-04-29
申请号：US18224753
申请日：2023-07-21
Applicant: Collins Engine Nozzles, Inc.
Inventor： Brandon P. Williams , Murtuza Lokhandwalla , Michael Ferrarotti , Todd Haugsjaahabink , Russell P. Rourke, Jr. , Jay W. Kokas , Richard E. Versailles , Jason A. Ryon , Charles E. Reuter
Abstract: A fuel injector for a turbine engine includes a fuel scheduling valve configured for regulation of fuel flow from a fuel inlet in response to fuel pressure received at the fuel inlet. Primary and secondary fuel circuits receive fuel from the scheduling valve, and an electrically-controlled valve is provided in fluid communication with the primary circuit, adapted and configured to actively control fuel through the primary circuit in response to a control signal.
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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
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.
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公开(公告)号：US20240271571A1
公开(公告)日：2024-08-15
申请号：US18224920
申请日：2023-07-21
Applicant: Collins Engine Nozzles, Inc.
Inventor： Brandon P. Williams , Michael Ferrarotti , Murtuza Lokhandwalla , Todd Haugsjaahabink , Russell P. Rourke, JR. , Jay W. Kokas , Richard E. Versailles
Abstract: A system includes an injector including a scheduling valve assembly and a nozzle in fluid communication with the scheduling valve assembly. The injector includes two fluid circuits, a primary circuit and a secondary circuit, between the inlet of the injector and two respective outlets for staged flow output. A cooling circuit is in fluid communication with the inlet of the injector. The cooling circuit is in thermal communication with the secondary circuit for selectively cooling the secondary circuit at low flow and no flow conditions of the secondary circuit. A separate valve is connected in fluid communication in the cooling circuit for controlling flow through the cooling circuit. The separate valve is configured for active control regardless of pressure at the inlet of the injector. The scheduling valve assembly is configured for passive control of the primary and secondary circuits based on pressure at the inlet of the injector.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240068409A1
公开(公告)日：2024-02-29
申请号：US18224816
申请日：2023-07-21
Applicant: Collins Engine Nozzles, Inc.
Inventor： Brandon P. Williams , Michael Ferrarotti , Murtuza Lokhandwalla , Todd Haugsjaahabink , Russell P. Rourke, JR. , Jay W. Kokas , Richard E. Versailles
CPC classification number: F02C7/232 , F16K31/423 , F16K47/04
Abstract: A system includes an injector including a scheduling valve assembly and a nozzle in fluid communication with the valve assembly. The scheduling valve assembly is configured for regulation of flow from an inlet of the injector to the nozzle. The injector includes one fluid circuit between the inlet of the injector and a respective outlet of the nozzle. A solenoid valve is connected in fluid communication with the scheduling valve assembly. The solenoid valve is configured to adjust position of a hydromechanical valve spool of the valve assembly.
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公开(公告)号：US20240068413A1
公开(公告)日：2024-02-29
申请号：US18224869
申请日：2023-07-21
Applicant: Collins Engine Nozzles, Inc.
Inventor： Brandon P. Williams , Michael Ferrarotti , Murtuza Lokhandwalla , Todd Haugsjaahabink , Russell P. Rourke, Jr. , Jay W. Kokas , Richard E. Versailles
CPC classification number: F02C9/263 , F02C7/222 , F23R3/28 , F05D2270/62
Abstract: A fuel injector for a turbine engine includes a fuel scheduling valve configured for regulation of fuel flow from a fuel inlet, in response to fuel pressure received at the fuel inlet. Primary, secondary and auxiliary fuel circuits receive fuel from the scheduling valve, and an electrically-controlled valve is provided in fluid communication with the auxiliary circuit, which electrically-controlled valve is adapted and configured to actively control fuel through the auxiliary circuit in response to a control signal. The auxiliary fuel circuit joins with the secondary fuel circuit for delivery to a fuel nozzle.
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8.发明公开公开(公告)号：US20240068408A1
公开(公告)日：2024-02-29
申请号：US18224781
申请日：2023-07-21
Applicant: Collins Engine Nozzles, Inc.
Inventor： Brandon P. Williams , Michael Ferrarotti , Murtuza Lokhandwalla , Todd Haugsjaahabink , Russell P. Rourke, Jr. , Jay W. Kokas , Richard E. Versailles
CPC classification number: F02C7/232 , F23R3/346 , F05D2240/35 , F05D2260/60 , F23N2241/20
Abstract: A system includes an injector having a scheduling valve assembly and a nozzle in fluid communication with the valve assembly. The scheduling valve assembly is configured for regulation of flow from an inlet of the injector to the nozzle. The injector includes two fluid circuits between the inlet of the injector and two respective outlets of the nozzle for staged flow output from the nozzle. A first one of the two fluid circuits is a primary circuit, and a second one of the two fluid circuits is a secondary circuit. A solenoid valve is connected in fluid communication with the scheduling valve assembly, wherein the solenoid valve is configured to adjust position of a hydromechanical valve spool of the valve assembly.
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公开(公告)号：US20240068407A1
公开(公告)日：2024-02-29
申请号：US18224753
申请日：2023-07-21
Applicant: Collins Engine Nozzles, Inc.
Inventor： Brandon P. Williams , Murtuza Lokhandwalla , Michael Ferrarotti , Todd Haugsjaahabink , Russell P. Rourke, JR. , Jay W. Kokas , Richard E. Versailles , Jason A. Ryon , Charles E. Reuter
Abstract: A fuel injector for a turbine engine includes a fuel scheduling valve configured for regulation of fuel flow from a fuel inlet in response to fuel pressure received at the fuel inlet. Primary and secondary fuel circuits receive fuel from the scheduling valve, and an electrically-controlled valve is provided in fluid communication with the primary circuit, adapted and configured to actively control fuel through the primary circuit in response to a control signal.
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公开(公告)号：US12060831B1
公开(公告)日：2024-08-13
申请号：US18244551
申请日：2023-09-11
Applicant: Collins Engine Nozzles, Inc.
Inventor： Brandon P. Williams , Michael Ferrarotti , Murtuza Lokhandwalla , Todd Haugsjaahabink , Russell P. Rourke, Jr. , Jay W. Kokas , Richard E. Versailles
Abstract: A system includes a plurality of injectors each having a respective main circuit configured to be connected in fluid communication with one manifold for supplying fuel to each injector in the plurality of injectors. Each injector in the plurality of injectors includes a respective hydromechanical scheduling valve member configured to regulate fuel flow from a respective inlet to a respective nozzle of each injector of the plurality of injectors as a function of pressure input from the manifold to the respective main circuits. A valve block is connected in fluid communication with a respective auxiliary circuit in each injector in the plurality of injectors. The auxiliary circuit is operatively connected to adjust position of the respective scheduling valve member for actuating force modification of the scheduling valve member. The valve block is configured to control all of the injectors in the plurality of injectors as a block.
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