公开(公告)号：US12092038B2

公开(公告)日：2024-09-17

申请号：US16991275

申请日：2020-08-12

Applicant: RTX Corporation

Inventor： Gary Collopy ,  Arthur M. Salve, Jr. ,  Michael Winter

IPC: F02C7/36 ,  B64D27/02

CPC classification number: F02C7/36 ,  B64D27/02 ,  B64D27/026 ,  F05D2220/323 ,  F05D2270/023 ,  F05D2270/053 ,  F05D2270/304

Abstract: Hybrid electric propulsion systems are described. The systems include a gas turbine engine having low and high speed spools, each spool having a respective compressor and turbine. A mechanical power transmission is configured to at least one of extract power from and supply power to at least one of the low speed spool and the high speed spool, an electric machine is configured to augment rotational power of at least one of the spools, and a controller is operable to determine a rotational speed of the low speed spool, determine a rotational speed of the high speed spool, determine if a predetermined operational zone of operation based on the determined rotational speeds is present, and when a predetermined operational zone is determined, control a power augmentation of at least one spool to limit dwell operation of the gas turbine engine within the predetermined operational zone.

公开(公告)号：US12291338B2

公开(公告)日：2025-05-06

申请号：US17691578

申请日：2022-03-10

Applicant: RTX Corporation

Inventor： Michael Winter

IPC: B64D13/08 ,  B01D45/08 ,  B01D53/00 ,  B03C1/28 ,  B64D13/06 ,  B64D27/12 ,  B64D33/08 ,  B64D37/32 ,  F01D15/00 ,  F01D25/12 ,  F02C6/08 ,  F02C7/141 ,  F02C7/143 ,  F02C7/16 ,  F02C7/18 ,  F02C9/18 ,  F02K3/06 ,  F17C7/02 ,  F17C7/04 ,  F25B9/14 ,  F25J3/04

Abstract: A system for an aircraft includes an engine bleed source of a gas turbine engine. The system also includes a means for chilling an engine bleed air flow from the engine bleed source to produce a chilled working fluid. The system further includes a means for providing the chilled working fluid for an aircraft use.

公开(公告)号：US12060834B2

公开(公告)日：2024-08-13

申请号：US17314202

申请日：2021-05-07

Applicant: RTX Corporation

Inventor： Jonathan Gilson ,  Zubair Ahmed Baig ,  Martin Richard Amari ,  Michael Winter

IPC: F02C7/32 ,  B64D27/16 ,  B64D27/24 ,  F01D15/10 ,  F01D19/02 ,  B64D27/02

CPC classification number: F02C7/32 ,  B64D27/16 ,  B64D27/24 ,  F01D15/10 ,  F01D19/02 ,  B64D27/026 ,  F05D2220/323 ,  F05D2220/76

Abstract: An engine system of an aircraft includes an energy storage system, a gas turbine engine, and a controller. The gas turbine engine includes a low spool, a high spool, a low-spool generator operably coupled to the low spool, and a high-spool electric motor operably coupled to the high spool. The controller is configured to detect a braking condition of the aircraft, transfer power from the low-spool generator to the energy storage system based on the storage capacity state of the energy storage system, and transfer power to the high spool through the high-spool electric motor to support combustion in the gas turbine engine while a rotational speed of the low spool is reduced responsive to the low-spool generator extracting energy from the low spool.

公开(公告)号：US12123309B2

公开(公告)日：2024-10-22

申请号：US18485980

申请日：2023-10-12

Applicant: RTX Corporation

Inventor： Dmitriy B. Sidelkovskiy ,  Pitchaiah Vijay Chakka ,  Michael Winter ,  Daniel Bernard Kupratis ,  Nathan L. Messersmith

IPC: F01D15/10 ,  B64D27/02 ,  B64D27/10 ,  B64D27/24 ,  B64D41/00 ,  F01D15/12 ,  F02C6/06 ,  F02K3/065 ,  H02K7/116 ,  H02K7/18 ,  H02K7/20 ,  H02K11/00

CPC classification number: F01D15/10 ,  B64D27/10 ,  B64D27/24 ,  B64D41/00 ,  F01D15/12 ,  F02C6/06 ,  F02K3/065 ,  H02K7/116 ,  H02K7/1823 ,  H02K7/20 ,  H02K11/0094 ,  B64D27/026 ,  F05D2220/50 ,  F05D2220/76

Abstract: An after-fan system for an engine may comprise an after-fan turbine an electrical generator operationally coupled to the after-fan turbine, and an electric motor electrically coupled to the electrical generator. The electrical generator may be configured to generate an electrical current in response to rotation of the after-fan turbine. The electric motor may be configured to generate torque.

公开(公告)号：US20240035392A1

公开(公告)日：2024-02-01

申请号：US18485980

申请日：2023-10-12

Applicant: RTX Corporation

Inventor： Dmitriy B. Sidelkovskiy ,  Pitchaiah Vijay Chakka ,  Michael Winter ,  Daniel Bernard Kupratis ,  Nathan L. Messersmith

IPC: F01D15/10 ,  B64D27/10 ,  B64D27/24 ,  B64D41/00 ,  F01D15/12 ,  F02C6/06 ,  F02K3/065 ,  H02K7/116 ,  H02K7/18 ,  H02K7/20 ,  H02K11/00

CPC classification number: F01D15/10 ,  B64D27/10 ,  B64D27/24 ,  B64D41/00 ,  F01D15/12 ,  F02C6/06 ,  F02K3/065 ,  H02K7/116 ,  H02K7/1823 ,  H02K7/20 ,  H02K11/0094 ,  B64D2027/026

Abstract: An after-fan system for an engine may comprise an after-fan turbine an electrical generator operationally coupled to the after-fan turbine, and an electric motor electrically coupled to the electrical generator. The electrical generator may be configured to generate an electrical current in response to rotation of the after-fan turbine. The electric motor may be configured to generate torque.

公开(公告)号：US20230417186A1

公开(公告)日：2023-12-28

申请号：US18242186

申请日：2023-09-05

Applicant: RTX Corporation

Inventor： Michael Winter ,  Denman H. James ,  Richard W. Monahan

IPC: F02C7/06 ,  F02C7/32 ,  F01D25/20

CPC classification number: F02C7/06 ,  F02C7/32 ,  F01D25/20 ,  F02C7/28

Abstract: A hybrid electric propulsion system including: a gas turbine engine comprising a low speed spool, a high speed spool, and a combustor; a lubrication circuit comprising a bearing compartment, a supply pump, and a scavenger pump; an electric motor configured to augment rotational power of the low speed spool or the high speed spool; and a controller operable to: control the electric motor based upon a pressure differential between an interior of the bearing compartment and an exterior of the bearing compartment and to drive rotation of the low speed spool and/or the high speed spool via the electric motor responsive to a thrust command while fuel flow to the combustor is inhibited.

公开(公告)号：US11781481B2

公开(公告)日：2023-10-10

申请号：US17839106

申请日：2022-06-13

Applicant: RTX Corporation

Inventor： Michael Winter ,  Denman H. James ,  Richard W. Monahan

IPC: F02C7/06 ,  F02C7/32 ,  F01D25/20 ,  F02C7/28 ,  B64D27/02 ,  F01D15/08 ,  F01D25/18 ,  B64D27/24

CPC classification number: F02C7/06 ,  F01D25/20 ,  F02C7/32 ,  B64D27/24 ,  B64D2027/026 ,  F01D15/08 ,  F01D25/183 ,  F02C7/28 ,  F05D2220/74 ,  F05D2260/98

Abstract: A hybrid electric propulsion system including: a gas turbine engine comprising a low speed spool, a high speed spool, and a combustor; a lubrication circuit comprising a bearing compartment, a supply pump, and a scavenger pump; an electric motor configured to augment rotational power of the low speed spool or the high speed spool; and a controller operable to: control the electric motor based upon a pressure differential between an interior of the bearing compartment and an exterior of the bearing compartment and to drive rotation of the low speed spool and/or the high speed spool via the electric motor responsive to a thrust command while fuel flow to the combustor is inhibited.