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公开(公告)号：US12215624B1
公开(公告)日：2025-02-04
申请号：US18512388
申请日：2023-11-17
Applicant: RTX CORPORATION
Inventor： Simon W. Evans , Brandon M. Evans
Abstract: A propulsion system for an aircraft includes an intercooling system configured to inject water into a compressor section to reduce a temperature of a core airflow within the core flow path. The intercooling system includes a plurality of injectors for injecting water at a water injection angle relative to an airflow to generate a defined swirl of a combined airflow and water to the compressor section.
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公开(公告)号：US20240360787A1
公开(公告)日：2024-10-31
申请号：US18770979
申请日：2024-07-12
Applicant: RTX CORPORATION
Inventor： Brandon M. Evans , Neil J. Terwilliger
CPC classification number: F02C3/30 , F02C1/10 , F02C3/22 , F02C6/18 , F02C7/141 , F05D2220/323 , F05D2260/213
Abstract: An aircraft propulsion system includes a core engine and a bottoming cycle where a working fluid is circulated within a closed circuit. A first heat exchanger is used to transfer heat from a portion of thermal energy from the exhaust gas flow to working fluid of the bottoming cycle. A fuel/working fluid heat exchanger provides the cryogenic fuel to cool the working fluid exhausted from a bottoming turbine and before a bottoming compressor.
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公开(公告)号：US20240318593A1
公开(公告)日：2024-09-26
申请号：US18529081
申请日：2023-12-05
Applicant: RTX CORPORATION
Inventor： Neil J. Terwilliger , Brandon M. Evans
CPC classification number: F02C6/18 , F03G7/0641 , F05D2220/323
Abstract: An aircraft propulsion system includes a core engine assembly that generates an exhaust gas flow, a bottoming cycle that includes a bottoming fluid flow that is expanded through a bottoming turbine, a first heat exchanger where heat from the exhaust gas flow is transferred to heat the bottoming fluid flow, and a second heat exchanger where heat from a secondary heat source is transferred to heat the bottoming fluid flow. The second heat exchanger is disposed upstream of the first heat exchanger such that heat from the secondary heat source preheats the bottoming fluid flow prior to accepting heat from the exhaust gas flow in the first heat exchanger.
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公开(公告)号：US20240369015A1
公开(公告)日：2024-11-07
申请号：US18770854
申请日：2024-07-12
Applicant: RTX CORPORATION
Inventor： Brandon M. Evans , Neil J. Terwilliger
IPC: F02C6/18
Abstract: An aircraft propulsion system includes a primary energy conversion device that uses a cryogenic fuel and air to generate power and thermal energy, a bottoming cycle where a working fluid is circulated within a closed circuit that includes a bottoming compressor section and a bottoming turbine section, the working fluid is compressed in the bottoming compressor section and expanded through the bottoming turbine section to generate shaft power, a thermal transfer circuit that includes a thermal routing fluid, the thermal routing fluid is different than the working fluid, thermal transfer heat exchanger where thermal energy from the thermal routing fluid is communicated to the working fluid, and a primary heat exchanger where thermal energy from the primary energy conversion device is communicated to the thermal routing fluid.
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公开(公告)号：US20240360788A1
公开(公告)日：2024-10-31
申请号：US18771005
申请日：2024-07-12
Applicant: RTX CORPORATION
Inventor： Brandon M. Evans , Neil J. Terwilliger
CPC classification number: F02C3/30 , F02C1/10 , F02C3/22 , F02C6/18 , F02C7/141 , F05D2220/323 , F05D2260/213
Abstract: An aircraft propulsion system includes a core engine and a bottoming cycle where a working fluid is circulated within a closed circuit. A first heat exchanger is used to transfer heat from a portion of thermal energy from the exhaust gas flow to working fluid of the bottoming cycle. A fuel/working fluid heat exchanger provides the cryogenic fuel to cool the working fluid exhausted from a bottoming turbine and before a bottoming compressor.
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Patent Agency Ranking
公开(公告)号：US20240360791A1
公开(公告)日：2024-10-31
申请号：US18770803
申请日：2024-07-12
Applicant: RTX CORPORATION
Inventor： Brandon M. Evans , Neil J. Terwilliger
CPC classification number: F02C7/141 , F02C1/10 , F02C3/22 , F02C6/18 , F02C7/32 , F05D2220/323 , F05D2260/213
Abstract: An aircraft propulsion system includes a bottoming cycle where a working fluid is circulated within a closed circuit that includes a bottoming compressor section and a bottoming turbine section. A first heat exchanger provides for thermal energy from a first heat source to be input into the working fluid of the bottoming cycle. A second heat exchanger that is downstream from the first heat exchanger communicates additional thermal energy from a second heat source into the working fluid of the bottoming cycle after the thermal energy from the first heat source is input into the working fluid.
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公开(公告)号：US20240360786A1
公开(公告)日：2024-10-31
申请号：US18770780
申请日：2024-07-12
Applicant: RTX CORPORATION
Inventor： Brandon M. Evans , Neil J. Terwilliger
CPC classification number: F02C3/22 , B64D27/10 , B64D27/33 , B64D27/355 , B64D37/30 , F02C3/04 , F02C7/10
Abstract: An aircraft propulsion system includes an energy conversion device that uses a cryogenic fuel and air to generate power and thermal energy, and a bottoming cycle where a working fluid is circulated within a closed circuit that includes a bottoming compressor section and a bottoming turbine section. A primary heat exchanger provides thermal communication of thermal energy from the energy conversion device to the working fluid of the bottoming cycle. A second heat exchanger is in thermal communication with the working fluid and a heat source other than from the energy conversion device for changing a temperature of the working fluid flow.
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公开(公告)号：US20240359814A1
公开(公告)日：2024-10-31
申请号：US18771038
申请日：2024-07-12
Applicant: RTX CORPORATION
Inventor： Brandon M. Evans , Neil J. Terwilliger
CPC classification number: B64D37/30 , B64D27/10 , F02C3/22 , F02C7/22 , F05D2230/60 , F05D2260/213
Abstract: An aircraft propulsion system includes a core engine, a first bottoming cycle and a second bottoming cycle that utilize different working fluids having different critical temperatures such that each of the bottoming cycles have different heat absorption capabilities.
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公开(公告)号：US20240359813A1
公开(公告)日：2024-10-31
申请号：US18770884
申请日：2024-07-12
Applicant: RTX CORPORATION
Inventor： Brandon M. Evans , Neil J. Terwilliger , Melissa Coombes
Abstract: An aircraft propulsion system includes at least two gas turbine engines and a bottoming cycle system where a working fluid is circulated within a closed circuit that includes a bottoming compressor section and a bottoming turbine section. Each of the at least two gas turbine engines include a primary heat exchanger for communicating thermal energy into the working fluid of the bottoming cycle.
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公开(公告)号：US20240359812A1
公开(公告)日：2024-10-31
申请号：US18770830
申请日：2024-07-12
Applicant: RTX CORPORATION
Inventor： Brandon M. Evans , Neil J. Terwilliger
CPC classification number: B64D37/30 , B64D27/10 , F02C7/141 , F02C7/22 , F05D2260/213
Abstract: An aircraft propulsion system includes a primary energy conversion device that uses a cryogenic fuel and air to generate power and thermal energy. The primary energy conversion device is mounted to a first structure of an aircraft. A bottoming cycle includes a working fluid that is circulated within a closed circuit that includes a bottoming compressor section and a bottoming turbine section. At least a portion of the bottoming cycle is mounted to a second structure of the aircraft that is different from the first structure. A primary heat exchanger provides communication of thermal energy from the primary conversion device to the working fluid of the bottoming cycle and is mounted within the first structure of the aircraft proximate the primary energy conversion device.
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