公开(公告)号：US11725580B2

公开(公告)日：2023-08-15

申请号：US17351876

申请日：2021-06-18

Applicant: Raytheon Technologies Corporation

Inventor： Marc J. Muldoon ,  Michael D. Greenberg ,  Nancy Poisson ,  Martin Richard Amari

IPC: F02C9/28 ,  F02C6/20 ,  B64D27/24 ,  B64D27/12

CPC classification number: F02C6/206 ,  B64D27/12 ,  B64D27/24 ,  F02C9/28 ,  F05D2220/323 ,  F05D2270/021

Abstract: An engine system of an aircraft includes a gas turbine engine comprising at least one spool and at least one electric machine operably coupled with the at least one spool. A controller is configured to detect if the at least one spool of the gas turbine engine is in or is approaching an overspeed condition and apply a load to the at least one spool via the at least one electric machine.

公开(公告)号：US20230184123A1

公开(公告)日：2023-06-15

申请号：US18079434

申请日：2022-12-12

Applicant: Raytheon Technologies Corporation

Inventor： Scot A. Webb ,  Michael D. Greenberg

IPC: F01D11/00

CPC classification number: F01D11/003 ,  F05D2240/55 ,  F05D2230/237 ,  F05D2300/141 ,  F05D2300/224

Abstract: An assembly is provided for rotational equipment. This assembly includes a metal seal carrier and a carbon seal element. The metal seal carrier includes a receptacle and a cylindrical carrier surface forming an outer peripheral boundary of the receptacle. The carbon seal element is seated in the receptacle. The carbon seal element includes a cylindrical element surface that is brazed to the cylindrical carrier surface.

公开(公告)号：US11566535B2

公开(公告)日：2023-01-31

申请号：US16879802

申请日：2020-05-21

Applicant: Raytheon Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Michael D. Greenberg

IPC: F01D17/16

Abstract: A variable vane assembly includes a variable vane; a trunnion arranged on one end of the variable vane; a bushing mated to the trunnion to define an interface between the trunnion and the bushing; and a surface modification on at least one of the trunnion and the bushing at the interface, whereby frictional heating at the interface during operation of the assembly is reduced.

公开(公告)号：US20220412268A1

公开(公告)日：2022-12-29

申请号：US17359891

申请日：2021-06-28

Applicant: Raytheon Technologies Corporation

Inventor： Michael D. Greenberg ,  Lance L. Smith ,  Dennis P. Cronin ,  Nancy Poisson ,  Christopher D. Ramsey ,  Neil Terwilliger

IPC: F02C7/36 ,  F02C6/00

Abstract: A hybrid electric engine of an aircraft includes a compressor, a turbine operably connected to the compressor via a variable gear ratio gearbox and a combustor configured to drive the turbine via a flow of combustion products. An electric motor is operably connected to the variable gear ratio rear box and configured to input rotational energy into the gearbox. The input of rotational energy into the gearbox from the electric motor changes a rotational speed of one of the compressor or the turbine relative to the other of the compressor or the turbine.

公开(公告)号：US12180841B2

公开(公告)日：2024-12-31

申请号：US18079434

申请日：2022-12-12

Applicant: Raytheon Technologies Corporation

Inventor： Scot A. Webb ,  Michael D. Greenberg

IPC: F01D11/00

Abstract: An assembly is provided for rotational equipment. This assembly includes a metal seal carrier and a carbon seal element. The metal seal carrier includes a receptacle and a cylindrical carrier surface forming an outer peripheral boundary of the receptacle. The carbon seal element is seated in the receptacle. The carbon seal element includes a cylindrical element surface that is brazed to the cylindrical carrier surface.

公开(公告)号：US20220403776A1

公开(公告)日：2022-12-22

申请号：US17351876

申请日：2021-06-18

Applicant: Raytheon Technologies Corporation

Inventor： Marc J. Muldoon ,  Michael D. Greenberg ,  Nancy Poisson ,  Martin Richard Amari

IPC: F02C6/20 ,  F02C9/28 ,  B64D27/12 ,  B64D27/24

Abstract: An engine system of an aircraft includes a gas turbine engine comprising at least one spool and at least one electric machine operably coupled with the at least one spool. A controller is configured to detect if the at least one spool of the gas turbine engine is in or is approaching an overspeed condition and apply a load to the at least one spool via the at least one electric machine.

公开(公告)号：US20220397067A1

公开(公告)日：2022-12-15

申请号：US17342738

申请日：2021-06-09

Applicant: Raytheon Technologies Corporation

Inventor： Michael D. Greenberg ,  Lance L. Smith ,  Justin R. Urban

IPC: F02C9/56 ,  F02C6/20 ,  F02C6/14 ,  F02C7/36 ,  B64D27/24 ,  B64D27/10

Abstract: Hybrid electric propulsion systems are described. The systems include a gas turbine engine having a low speed spool and a high speed spool. The low speed spool includes a low pressure compressor and a low pressure turbine and the high speed spool includes a high pressure compressor and a high pressure turbine. An electric machine is configured to augment rotational power of at least one of the high speed spool and the low speed spool. A controller is configured to control the electric machine to one of add or subtract rotational energy to or from at least one of the high speed spool and the low speed spool during a transition to or from an idle state of operation of the gas turbine engine.

公开(公告)号：US20210363896A1

公开(公告)日：2021-11-25

申请号：US16879802

申请日：2020-05-21

Applicant: Raytheon Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Michael D. Greenberg

IPC: F01D17/16

Abstract: A variable vane assembly includes a variable vane; a trunnion arranged on one end of the variable vane; a bushing mated to the trunnion to define an interface between the trunnion and the bushing; and a surface modification on at least one of the trunnion and the bushing at the interface, whereby frictional heating at the interface during operation of the assembly is reduced.

公开(公告)号：US11920492B1

公开(公告)日：2024-03-05

申请号：US18123877

申请日：2023-03-20

Applicant: Raytheon Technologies Corporation

Inventor： Jason B. Husband ,  Michael D. Greenberg

IPC: F01D25/24

CPC classification number: F01D25/243 ,  F05D2260/31

Abstract: A mounting assembly is provided. The mounting assembly includes a first flange; a second flange; a first asymmetric spacer; a second asymmetric spacer; and a bolt configured to pass through a void of the first asymmetric spacer starting at a first end, through at least one first opening of the first flange, through at least one second opening of the second flange, through a void of the second asymmetric spacer starting at a second end, and to be coupled to a nut, such that, in response to the nut being fastened to the bolt, the bolt bends due to a non-vertical slope of the first asymmetric spacer and a non-vertical slope of the second asymmetric spacer.

公开(公告)号：US11795880B2

公开(公告)日：2023-10-24

申请号：US17854643

申请日：2022-06-30

Applicant: Raytheon Technologies Corporation

Inventor： Michael D. Greenberg ,  Robert Goodman ,  John M. Dehais

IPC: F02C7/277 ,  F01D17/20 ,  F01D21/00 ,  F01D17/24 ,  F01D17/06 ,  F16K31/124 ,  F16K1/12 ,  F01D19/02 ,  F01D19/00 ,  F02C9/16

CPC classification number: F02C7/277 ,  F01D17/06 ,  F01D17/205 ,  F01D17/24 ,  F01D19/00 ,  F01D19/02 ,  F01D21/003 ,  F02C9/16 ,  F16K1/12 ,  F16K31/124 ,  F02N2200/022 ,  F05D2220/32 ,  F05D2240/40 ,  F05D2260/84 ,  F05D2260/85 ,  F05D2270/304 ,  F05D2270/46

Abstract: A system may comprise a sensor configured to measure a characteristic of an engine component. A valve assembly may have an airflow outlet in fluid communication with the engine component. The valve assembly may include a first valve. A first valve control device may be coupled to the first valve and configured to control the first valve based on a measurement by the sensor. A second valve may be in fluidic series with the first valve. A second valve control device may be coupled to the second valve and configured to control the second valve based on the measurement by the sensor.