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公开(公告)号:US12065964B1
公开(公告)日:2024-08-20
申请号:US18302081
申请日:2023-04-18
Applicant: Raytheon Technologies Corporation
Inventor: Neil J. Terwilliger
CPC classification number: F02C3/34 , F02C3/30 , F02C6/20 , F02C7/141 , F02C7/1435 , F02C9/18 , F05D2260/212 , F05D2260/213
Abstract: A turbine engine assembly includes a heat exchanger that is in thermal communication with an exhaust gas flow. A bypass passage is provided that is configured to selectively route at least a portion of the exhaust gas flow around the heat exchanger in response to a predefined engine operating condition.
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公开(公告)号:US20240263579A1
公开(公告)日:2024-08-08
申请号:US18639770
申请日:2024-04-18
Applicant: MTU Aero Engines AG
Inventor: Istvan BOLGAR , Alexander WOITALKA
Abstract: A drive system (10) including a gas turbine (1), designed in particular as an aircraft engine. The gas turbine (1) includes a core flow channel (1c) in which at least one compressor (2), in particular a mixing chamber (3a), a combustion chamber (3), and a turbine (4), are situated in the flow direction, and a steam system (20) for separating water from an exhaust gas stream of the core flow channel (1c), for generating steam, and for conveying the steam, in particular across the mixing chamber (3a) into the combustion chamber (3). A drive system (10) whose efficiency is increased is provided in that the steam system (20) is coupled to a separate cooling system (30) in order to contribute to the separation of the water for generating the steam from an exhaust gas stream of the core flow channel (1c), via absorption and discharge of heat.
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公开(公告)号:US11920515B2
公开(公告)日:2024-03-05
申请号:US17744379
申请日:2022-05-13
Applicant: Raytheon Technologies Corporation
Inventor: Abbas A. Alahyari
IPC: F02C7/141
CPC classification number: F02C7/141 , F05D2220/323 , F05D2220/60 , F05D2260/213 , F05D2260/2214 , F05D2260/60
Abstract: A propulsion system for an aircraft includes a hydrogen fuel system suppling hydrogen fuel to the combustor through a fuel flow path. A condenser extracts water from a high energy gas flow. The condenser includes a plurality of rotating passages that are disposed within a collector. The passages are configured to rotate about a condenser axis to generate a transverse pressure gradient to direct water out of the high energy gas flow toward the collector.
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公开(公告)号:US11879413B2
公开(公告)日:2024-01-23
申请号:US17940480
申请日:2022-09-08
Applicant: ROLLS-ROYCE plc
Inventor: Paul R Davies , Gareth E Moore , Stephen M Husband , David R Trainer , David P Scothern , Luke George
CPC classification number: F02K3/06 , F01D15/10 , F02C7/141 , F05D2220/323 , F05D2220/36 , F05D2260/213 , F05D2260/606
Abstract: An aircraft gas turbine engine includes a heat exchanger module, and a core engine. The core engine includes an intermediate-pressure compressor, high-pressure compressor, and high and low-pressure turbines. The high-pressure compressor rotationally connects to the high-pressure turbine by a first shaft, and the intermediate-pressure compressor rotationally connects to the low-pressure turbine by a second shaft. The heat exchanger module fluidly communicates with the core engine by an inlet duct. The heat exchanger module includes a central hub and multiple heat transfer elements extending radially from the hub and spaced in a circumferential array, for heat energy transfer from a first fluid within the elements to an inlet airflow passing over a surface of the elements prior to airflow entry into an inlet to the core engine. The gas turbine engine further includes a first electric machine rotationally connected to the first shaft, and positioned downstream of the heat exchanger module.
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公开(公告)号:US11846422B2
公开(公告)日:2023-12-19
申请号:US17406767
申请日:2021-08-19
Applicant: Delavan Inc.
Inventor: Jason Ryon , Gregory A. Zink , Brandon Phillip Williams , Lev A. Prociw
IPC: F23R3/28 , F02C7/18 , F02C7/224 , F02C9/18 , F23R3/26 , F02C6/08 , F02C7/141 , F02C7/22 , F02C9/16
CPC classification number: F23R3/283 , F02C7/185 , F02C7/224 , F02C9/18 , F23R3/26 , F02C6/08 , F02C7/141 , F02C7/222 , F02C9/16 , F05D2260/213 , F05D2260/232 , F05D2270/303
Abstract: A system includes an air manifold, a fuel manifold, and a plurality of fuel injectors. At least one of the fuel injectors includes a heat exchanger portion for supplying compressed, cooled air form the heat exchanger portion to the air manifold. An air valve is operatively connected to an outlet of the air manifold for controlling release of air from the air manifold. A controller is operatively connected to the air valve, wherein the controller includes machine readable instructions configured to control the air valve to regulate flow of air through the air valve based on fuel temperatures in the fuel channel. The machine readable instructions can be configured to cause the controller to flow air through the air valve in a heat exchange mode if a fuel temperature in the fuel injectors is below a predetermined fuel temperature.
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公开(公告)号:US11815030B1
公开(公告)日:2023-11-14
申请号:US17860445
申请日:2022-07-08
Applicant: General Electric Company
Inventor: Eyitayo James Owoeye
CPC classification number: F02C9/18 , F02C7/141 , F05D2220/323 , F05D2270/081
Abstract: A contrail suppression system includes a shell having an exhaust gas inlet, an exhaust gas outlet, a condensate drain and a flow chamber in fluid communication with the exhaust gas inlet, the exhaust gas outlet and the condensate drain. The exhaust gas inlet is in fluid communication with a jet exhaust nozzle of a gas turbine engine. A first tube bundle is disposed within the flow chamber downstream from the exhaust gas inlet. The first tube bundle includes an inlet and an outlet. The inlet of the first tube bundle is fluidly connected to a first cooling medium source. A second tube bundle is disposed within the flow chamber downstream from the first tube bundle and upstream from the exhaust gas outlet. The second tube bundle includes an inlet and an outlet. The inlet of the second tube bundle is fluidly connected to a second cooling medium source.
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公开(公告)号:US20230340930A1
公开(公告)日:2023-10-26
申请号:US18025373
申请日:2021-09-08
Applicant: Pradeep DASS
Inventor: Pradeep DASS
CPC classification number: F02K7/16 , F02C7/141 , F02C9/18 , F05D2260/213 , F05D2220/10 , F05D2300/133 , F05D2300/125
Abstract: A turboramjet has a housing with an intake and an exhaust. The housing houses a heat exchanger, a turbojet section and a ramjet section downstream of the turbojet section. The heat exchanger has an air path and a coolant path. The air path is configured to receive air from the air intake. The heat exchanger has a first section made from a first material and a second section made from a second material, the second material having a lower melting point and a lower density relative to the first material. A bypass air passage selectively bypasses the turbojet section to supply air to the ramjet section, and the coolant path uses fuel as a coolant and is configured to supply the fuel to the turbojet section.
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公开(公告)号:US20230332510A1
公开(公告)日:2023-10-19
申请号:US17719379
申请日:2022-04-13
Applicant: General Electric Company
Inventor: Eric R. Westervelt , Stefan Joseph Cafaro , James R. Reepmeyer , Terry Hei Tsun Ma
CPC classification number: F01D21/003 , F01D17/085 , F02C9/28 , F02C7/141 , F02C7/185 , F05D2260/606 , F05D2260/83 , F05D2220/323 , F05D2260/213 , F05D2260/80
Abstract: A method of transient control of a thermal transport bus of a turbomachine includes measuring a measured temperature and a measured pressure of a working fluid; determining a selected run state of a turbomachine, wherein the selected run state is one of a plurality of run states; selecting a desired operating condition comprising a desired temperature range and a desired pressure range as a function of a desired state of the working fluid; comparing the measured temperature with the desired temperature range, and comparing the measured pressure with the desired pressure range; and modulating control of the thermal transport bus as a function of the comparing of the measured temperature with the desired temperature range and the comparing of the measured pressure with the desired pressure range.
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公开(公告)号:US11788468B1
公开(公告)日:2023-10-17
申请号:US18101735
申请日:2023-01-26
Applicant: Raytheon Technologies Corporation
Inventor: Robert James
CPC classification number: F02C7/141 , F02C7/18 , F05D2240/14 , F05D2260/213 , F05D2260/232 , F05D2260/602
Abstract: A heat exchanger for controlling case leakage including a joint formed between a first case portion proximate a second case portion; a gap formed within the joint; and the heat exchanger operatively coupled to the case proximate the joint, the heat exchanger configured to inhibit air flow through the gap.
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公开(公告)号:US20230250759A1
公开(公告)日:2023-08-10
申请号:US18136365
申请日:2023-04-19
Applicant: Reaction Engines Limited
Inventor: Alan Bond , Richard Anthony Varvill
IPC: F02C7/141 , F28D7/08 , F28F9/013 , F28F9/02 , F28F9/26 , F28F17/00 , F28F19/00 , F28D1/047 , F28D7/04
CPC classification number: F02C7/141 , F28D1/0472 , F28D7/04 , F28D7/08 , F28F9/013 , F28F9/26 , F28F9/0243 , F28F17/005 , F28F19/00 , F28D2021/0021
Abstract: A heat exchanger which may be used in an engine, such as a vehicle engine for an aircraft or orbital launch vehicle. is provided. The heat exchanger may be configured as generally drum-shaped with a multitude of spiral sections, each containing numerous small diameter tubes. The spiral sections may spiral inside one another. The heat exchanger may include a support structure with a plurality of mutually axially spaced hoop supports, and may incorporate an intermediate header. The heat exchanger may incorporate recycling of methanol or other antifreeze used to prevent blocking of the heat exchanger due to frost or ice formation.
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