WO2020170657A1 - ジェットエンジン - Google Patents
ジェットエンジン Download PDFInfo
- Publication number
- WO2020170657A1 WO2020170657A1 PCT/JP2020/001067 JP2020001067W WO2020170657A1 WO 2020170657 A1 WO2020170657 A1 WO 2020170657A1 JP 2020001067 W JP2020001067 W JP 2020001067W WO 2020170657 A1 WO2020170657 A1 WO 2020170657A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel
- jet engine
- flow path
- turbine
- engine according
- Prior art date
Links
- 239000000446 fuel Substances 0.000 claims abstract description 138
- 238000010438 heat treatment Methods 0.000 claims abstract description 63
- 238000002485 combustion reaction Methods 0.000 claims abstract description 3
- 238000002347 injection Methods 0.000 description 22
- 239000007924 injection Substances 0.000 description 22
- 238000000034 method Methods 0.000 description 13
- 239000002828 fuel tank Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/22—Fuel supply systems
- F02C7/224—Heating fuel before feeding to the burner
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D37/00—Arrangements in connection with fuel supply for power plant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/26—Starting; Ignition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
- F02C9/26—Control of fuel supply
- F02C9/44—Control of fuel supply responsive to the speed of aircraft, e.g. Mach number control, optimisation of fuel consumption
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K7/00—Plants in which the working fluid is used in a jet only, i.e. the plants not having a turbine or other engine driving a compressor or a ducted fan; Control thereof
- F02K7/10—Plants in which the working fluid is used in a jet only, i.e. the plants not having a turbine or other engine driving a compressor or a ducted fan; Control thereof characterised by having ram-action compression, i.e. aero-thermo-dynamic-ducts or ram-jet engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/80—Application in supersonic vehicles excluding hypersonic vehicles or ram, scram or rocket propulsion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/35—Combustors or associated equipment
- F05D2240/36—Fuel vaporizer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/304—Spool rotational speed
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Definitions
- the present invention relates to a jet engine.
- Jet engines such as ramjet engines may inject fuel at high injection pressure into a combustor that burns fuel.
- Patent Document 1 discloses a method of pressurizing fuel by using a turbine pump. In this turbine pump, the compressed air compressed by the turbine engine flows into the turbine pump to operate the turbine pump. Further, it is described that electric power may be taken out from the turbine pump by incorporating a generator in the turbine pump. Further, it is described that by incorporating an electric motor in the turbine pump, the compressed air from the turbine engine can be reduced.
- the present invention has been made in view of the above circumstances, and an object thereof is to provide a jet engine that can efficiently apply pressure to fuel.
- Other objects can be understood from the following description and description of the embodiments.
- a jet engine includes a pump that pressurizes fuel, a heating flow path that heats the pressurized fuel, a fuel turbine that powers the pump, and a rotating electric machine. ..
- the rotating electrical machine powers the fuel turbine when the desired conditions are not met.
- the pre-combustion fuel that has passed through the heating flow path flows into the fuel turbine and powers the fuel turbine.
- FIG. 1 is a schematic diagram of a machine body including a jet engine according to an embodiment.
- FIG. 2 is a schematic diagram showing a cross section of the jet engine according to the embodiment.
- FIG. 3 is a schematic diagram of a jet engine supply system according to an embodiment.
- FIG. 4 is a flowchart regarding processing of the jet engine supply system according to the embodiment.
- the jet engine 2 is mounted on an aircraft 1, for example, as shown in FIG.
- the jet engine 2 may be mounted on a flying body including a missile or the like.
- the jet engine 2 includes, for example, an airframe 10, a cowl 20, and a supply system 30.
- a space 15 through which gas can flow is formed between the machine body 10 and the cowl 20.
- the airframe 10 and the cowl 20 configure an inlet 50 that introduces air into the space 15 as the aircraft 1 moves forward.
- a combustor 60 in which fuel is injected from the supply system 30, and the fuel and air are mixed and burned is configured in the central portion of the space 15.
- the burned gas is discharged from a nozzle 70 formed of the body 10 and the cowl 20.
- the jet engine 2 takes in air from the inlet 50 and releases burned gas from the nozzle 70 to obtain thrust.
- the jet engine 2 includes, for example, a ramjet engine.
- the supply system 30 includes a fuel tank 100, a pump 110, a heating flow path 120, a fuel turbine 130, a rotating electric machine 140, a power supply device 150, and an injection port 160. Fuel is stored in the fuel tank 100.
- the rotary electric machine 140 supplies power to the pump 110 when the jet engine 2 starts.
- the rotary electric machine 140 is connected to the pump shaft 115 of the pump 110 via the fuel turbine shaft 135 of the fuel turbine 130.
- the rotary electric machine 140 is supplied with electric power from the power supply device 150, rotates the fuel turbine shaft 135, and supplies power to the fuel turbine 130.
- the pump shaft 115 rotates.
- the pump 110 applies pressure to the fuel supplied from the fuel tank 100.
- the fuel to which pressure has been applied is injected into the combustor 60 from the injection port 160 via the heating flow path 120.
- the fuel turbine 130 supplies power to the pump 110.
- the heating flow passage 120 heats the fuel flowing through the heating flow passage 120 to vaporize it by the heat generated in the combustor 60 being transmitted to the heating flow passage 120.
- the vaporized fuel flows into the fuel turbine 130 to supply power to the fuel turbine 130 and rotate the fuel turbine shaft 135 of the fuel turbine 130 before burning in the combustor 60. Since the fuel turbine shaft 135 is connected to the pump shaft 115, the rotational force generated in the fuel turbine 130 causes the pump shaft 115 of the pump 110 to rotate.
- the pump 110 applies pressure to the fuel as the pump shaft 115 rotates. Further, the fuel released from the fuel turbine 130 is injected into the combustor 60 from the injection port 160.
- the pump 110 obtains power from the rotating electric machine 140 when the temperature of the heating flow passage 120 is low, and obtains power from the fuel turbine 130 when the temperature of the heating flow passage 120 is high. Accordingly, the pump 110 can apply sufficient pressure to the fuel when the temperature of the heating flow path 120 is low.
- the fuel turbine 130 rotates the rotor of the rotating electric machine 140, so that the rotating electric machine 140 generates electric power.
- the electric power generated by the rotating electric machine 140 is supplied to the electronic device 40 mounted on the aircraft 1.
- the power supply device 150 includes a thermal battery, a molten salt battery, and the like.
- the power supply device 150 may be provided adjacent to the combustor 60 or the heating flow path 120. The heat generated in the combustor 60 is transmitted to the power supply device 150. As a result, the power supply device 150 is kept warm, and the operating time of the power supply device 150 can be lengthened.
- the supply system 30 includes a first flow path 170 connecting the fuel tank 100 and the pump 110, a second flow path 180 connecting the pump 110 and the heating flow path 120, a heating flow path 120, the injection port 160, and the fuel.
- a third flow path 190 connecting the turbine 130 and a fourth flow path 200 connecting the fuel turbine 130 and the injection port 160 are provided.
- the injection port 160 may be plural.
- the first flow path 170 guides the fuel stored in the fuel tank 100 to the pump 110 when the jet engine 2 starts.
- a cutoff valve 172 is provided in the first flow path 170.
- the fuel flows into the pump 110 by opening the shutoff valve 172 when the jet engine 2 starts.
- the fuel that has flowed into the pump 110 is pressurized and discharged into the second flow path 180.
- the pump 110 includes a spiral pump such as a turbine pump.
- the second channel 180 guides the fuel pressurized by the pump 110 to the heating channel 120.
- the fuel introduced into the heating flow passage 120 is heated in the heating flow passage 120 and flows into the third flow passage 190.
- the heating flow path 120 is provided, for example, adjacent to the combustor 60.
- the heating flow path 120 may be provided adjacent to the nozzle 70.
- the third flow path 190 guides the fuel to the injection port 160 or the fuel turbine 130 according to the temperature of the heating flow path 120.
- the third flow path 190 includes a branch point 192 between a flow path that guides fuel from the heating flow path 120 to the injection port 160 and a flow path that guides fuel from the heating flow path 120 to the fuel turbine 130.
- a first opening/closing valve 194 is provided between the branch point 192 and the fuel turbine 130, and a second opening/closing valve 196 is provided between the branch point 192 and the injection port 160. When the temperature of the heating flow path 120 is low, the first opening/closing valve 194 is closed and the second opening/closing valve 196 is opened.
- the fuel that has passed through the heating flow path 120 flows into the injection port 160 without passing through the fuel turbine 130, is injected from the injection port 160 into the combustor 60, and burns.
- the first opening/closing valve 194 is opened and the second opening/closing valve 196 is closed.
- the fuel that has passed through the heating flow path 120 flows to the fuel turbine 130.
- the fuel guided to the fuel turbine 130 rotates the fuel turbine shaft 135 and is discharged to the fourth flow path 200.
- the fourth flow path 200 guides the fuel discharged from the fuel turbine 130 to the injection port 160.
- the fuel guided to the injection port 160 is injected from the injection port 160 and burns.
- the supply system 30 includes, for example, a control device 210, a temperature sensor 220, and a tachometer 230 in order to control the flow of fuel.
- the temperature sensor 220 measures the temperature of the heating flow path 120 and sends temperature information indicating the measured temperature to the control device 210.
- the tachometer 230 measures the rotation speed of the pump shaft 115 and transmits rotation information indicating the measured rotation speed to the control device 210.
- the tachometer 230 may estimate the rotation speed of the pump shaft 115 by measuring the rotation speed of the fuel turbine shaft 135.
- the control device 210 controls the shutoff valve 172, the first opening/closing valve 194, and the second opening/closing valve 196.
- the control device 210 controls the first opening/closing valve 194 and the second opening/closing valve 196 based on the temperature measured by the temperature sensor 220.
- the control device 210 also controls the rotating electric machine 140.
- the control device 210 supplies electric power to the rotary electric machine 140 and drives the rotary electric machine 140 as an electric motor so that the pump 110 can pressurize the fuel when the jet engine 2 is started. Further, when the temperature of heating flow path 120 is high, control device 210 drives rotating electric machine 140 as a generator so as to generate electric power from the power of fuel turbine 130.
- control device 210 may control the rotation speed of the rotating electric machine 140 according to the rotation speed measured by the tachometer 230.
- the pressure applied by the pump 110 to the fuel is determined according to the rotation speed of the pump shaft 115. Therefore, when the rotation speed of the pump shaft 115 is high, the control device 210 controls the rotation electric machine 140 so as to reduce the rotation speed of the rotation electric machine 140. Similarly, when the rotation speed of the pump shaft 115 is low, the control device 210 controls the rotary electric machine 140 so as to increase the rotation speed of the rotary electric machine 140. Thereby, the pressure of the fuel discharged from the pump 110 can be controlled.
- the jet engine 2 operates as shown in FIG. Before the jet engine 2 is started, the shutoff valve 172, the first opening/closing valve 194 are closed, and the second opening/closing valve 196 is opened.
- the rotary electric machine 140 When the jet engine 2 starts, the rotary electric machine 140 is driven as an electric motor to open the shutoff valve 172 (step S100).
- the controller 210 opens the shutoff valve 172 and causes the fuel in the fuel tank 100 to flow to the pump 110. Further, the control device 210 supplies electric power to the rotary electric machine 140 so that the pump 110 pressurizes the fuel.
- the second opening/closing valve 196 may be opened when the jet engine 2 is started.
- step S110 the control device 210 determines whether the fuel heated in the heating flow passage 120 is vaporized based on the temperature of the heating flow passage 120 measured by the temperature sensor 220. For example, when the temperature of the heating channel 120 is higher than the desired temperature, it is determined that the fuel flowing through the heating channel 120 is vaporized. The control device 210 waits until it is determined that the fuel flowing through the heating flow path 120 is vaporized. When it is determined that the fuel flowing through the heating flow path 120 is vaporized, the process proceeds to step S120.
- step S120 the control device 210 controls the first opening/closing valve 194 and the second opening/closing valve 196 to change the fuel flow path.
- the control device 210 determines that the fuel heated in the heating flow path 120 is vaporized, it opens the first opening/closing valve 194.
- the control device 210 closes the second opening/closing valve 196. Therefore, the fuel heated in the heating flow path 120 flows into the fuel turbine 130 and rotates the fuel turbine shaft 135.
- the pump shaft 115 of the pump 110 rotates. As a result, the pump 110 pressurizes the fuel.
- control device 210 determines whether the rotation speed of pump shaft 115 measured by tachometer 230 is lower than a first threshold value.
- the rotation speed of the pump shaft 115 is lower than the first threshold value, it means that the pressure of the fuel discharged from the pump 110 is low. Therefore, when the control device 210 determines that the rotation speed of the pump shaft 115 is lower than the first threshold value, the control device 210 controls the rotation electric machine 140 to increase the rotation speed of the rotation electric machine 140 (step S140).
- the controller 210 returns to the process of step S130 after performing the process of step S140.
- the process proceeds to step S150.
- the first threshold may be determined based on the lower limit of the fuel pressure that the jet engine 2 can tolerate.
- the first threshold may be determined according to the speed of the aircraft 1.
- the supply system 30 acquires the speed of the aircraft 1 from the speedometer included in the aircraft 1. Further, the supply system 30 may include a speedometer.
- control device 210 determines whether the rotation speed of pump shaft 115 measured by tachometer 230 is higher than a second threshold value.
- the rotation speed of the pump shaft 115 is higher than the second threshold value, it means that the pressure of the fuel discharged from the pump 110 is high. Therefore, when the control device 210 determines that the rotation speed of the pump shaft 115 is higher than the second threshold value, the control device 210 controls the rotation electric machine 140 so as to reduce the rotation speed of the rotation electric machine 140 (step S160).
- the controller 210 returns to the process of step S130 after performing the process of step S160.
- the process proceeds to step S170.
- the second threshold may be determined based on the upper limit value of the fuel pressure that the jet engine 2 can tolerate.
- the second threshold may be determined according to the speed of the aircraft 1. For example, the second threshold may be greater than the first threshold.
- step S170 the control device 210 drives the rotating electric machine 140 as a generator to supply the electric power generated by the rotating electric machine 140 to the electronic device 40.
- the control device 210 receives the electric power generated by the rotating electric machine 140 and supplies the electric power to the electronic device 40.
- the electric power generated by the rotating electric machine 140 may be directly supplied to the electronic device 40.
- control device 210 may supply the electric power supplied from power supply device 150 to electronic device 40.
- control device 210 can adjust the fuel pressure.
- step S110 an arbitrary method for determining whether the fuel heated in the heating flow path 120 is vaporized can be selected. For example, whether or not the fuel is vaporized may be determined based on the temperature of the fuel flowing through the heating flow passage 120 or the third flow passage 190. In this case, the temperature sensor 220 measures the temperature of the fuel flowing through the heating flow path 120 or the third flow path 190. The control device 210 determines that the fuel is vaporized when the temperature of the fuel measured by the temperature sensor 220 is higher than a desired value. Further, it may be determined whether or not the fuel is vaporized, based on the time elapsed since the jet engine 2 was started.
- control device 210 determines that the fuel is vaporized when a desired time has elapsed since the jet engine 2 was started. Further, two or more of the temperature of the heating flow path 120, the temperature of the fuel flowing through the heating flow path 120, the temperature of the fuel flowing through the third flow path 190, and the time elapsed since the jet engine 2 was started are set. Based on the combination, it may be determined whether the fuel heated in the heating channel 120 is vaporized.
- step S120 it is possible to select any method for changing the fuel flow path.
- the control device 210 may open the first opening/closing valve 194 after closing the second opening/closing valve 196. Further, the control device 210 may simultaneously close the second opening/closing valve 196 and open the first opening/closing valve 194.
- the branch point 192 may be provided with a three-way valve.
- the fuel that has passed through the heating flow passage 120 is guided to the injection port 160 or the fuel turbine 130 by the control device 210 controlling the three-way valve.
- the control device 210 controls the three-way valve so that the fuel that has passed through the heating flow path 120 flows to the injection port 160 when the temperature of the heating flow path 120 is low.
- the control device 210 controls the three-way valve so that the fuel that has passed through the heating flow passage 120 flows to the fuel turbine 130 when the temperature of the heating flow passage 120 is high.
- any method for injecting fuel from the injection port 160 when the temperature of the heating flow path 120 is low can be selected.
- the fuel may be guided to the injection port 160 from the second flow path 180 without passing through the heating flow path 120.
- the second flow path 180 has a branch point between a flow path for guiding the fuel from the pump 110 to the heating flow path 120 and a flow path for guiding the fuel from the pump 110 to the injection port 160.
- a third on-off valve is provided between this branch point and the heating flow path 120, and a fourth on-off valve is provided between this branch point and the injection port 160.
- the control device 210 controls the third opening/closing valve and the fourth opening/closing valve in the same manner as the first opening/closing valve 194 and the second opening/closing valve 196. Further, the fuel may always flow to the injection port 160 via the fuel turbine 130 without providing the branch point 192 in the third flow path 190.
- the present invention has been described with reference to the exemplary embodiments and examples, the present invention is not limited to the above-described exemplary embodiments and examples.
- the configuration and details of the present invention can be appropriately modified and changed by those skilled in the art within the scope of the technical idea of the present invention described in the claims.
- the processing described above is an example, and the order of each step and the processing content may be changed within a range that does not hinder the function.
- the configuration described may be arbitrarily changed within a range that does not impair the function.
- the pump shaft 115 of the pump 110 has only to transmit power to the fuel turbine shaft 135 of the fuel turbine 130, and may be connected to the fuel turbine shaft 135 by any method.
- the fuel turbine shaft 135 of the fuel turbine 130 may be connected to the rotary electric machine 140 by any method as long as the power is transmitted to the rotary electric machine 140.
- the control device 210 may not control the rotating electric machine 140 according to the rotation speed of the pump shaft 115. In this case, steps S130 to S160 of FIG. 4 can be omitted.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Turbines (AREA)
Abstract
Description
Claims (12)
- 燃料を加圧するポンプと、
加圧された前記燃料を加熱する加熱流路と、
前記ポンプに動力を与える燃料タービンと、
回転電機と、
を備え、
所望の条件を満たさないときに、前記回転電機が前記燃料タービンに動力を与え、
前記所望の条件を満たすときに、前記加熱流路を通過した燃焼前の前記燃料が、前記燃料タービンに流入して前記燃料タービンに動力を与える
ジェットエンジン。 - 前記所望の条件は、前記加熱流路を通過した前記燃料が気化していることを含む
請求項1に記載のジェットエンジン。 - 前記所望の条件は、前記加熱流路の温度が第1閾値より高いことを含む
請求項1または2に記載のジェットエンジン。 - 前記所望の条件は、前記加熱流路を通過した前記燃料の温度が第2閾値より高いことを含む
請求項1から3のいずれか1項に記載のジェットエンジン。 - 前記所望の条件は、当該ジェットエンジンを始動してから所望の時間が経過していることを含む
請求項1から4のいずれか1項に記載のジェットエンジン。 - 前記回転電機は、前記所望の条件を満たすときに、前記燃料タービンの回転力を受けて電力を発電する
請求項1から5のいずれか1項に記載のジェットエンジン。 - 前記燃料タービンの回転速度を計測する回転計と、
前記回転速度に応じて、前記回転電機の回転速度を制御する制御装置と
をさらに備える
請求項1から6のいずれか1項に記載のジェットエンジン。 - 前記制御装置は、
前記回転速度が第3閾値より大きいときに、前記燃料タービンの前記回転速度を減少させる方向に動力を加え、
前記回転速度が第4閾値より小さいときに、前記燃料タービンの前記回転速度を増加させる方向に動力を加える
請求項7に記載のジェットエンジン。 - 前記燃料は、前記所望の条件を満たさないときに、前記燃料タービンを通過せずに燃焼する
請求項1から8のいずれか1項に記載のジェットエンジン。 - 前記燃料を燃焼する燃焼器を備え、
前記加熱流路は、前記燃焼器に隣接して設けられている
請求項1から9のいずれか1項に記載のジェットエンジン。 - 前記回転電機に電力を供給する電源装置をさらに備え、
前記電源装置は、前記燃焼器で発生する熱により保温される
請求項10に記載のジェットエンジン。 - 前記電源装置は、前記加熱流路に隣接して設けられている
請求項11に記載のジェットエンジン。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2020224417A AU2020224417B2 (en) | 2019-02-18 | 2020-01-15 | Jet engine |
EP20759195.9A EP3812565A4 (en) | 2019-02-18 | 2020-01-15 | JET ENGINE |
US17/263,997 US20210293182A1 (en) | 2019-02-18 | 2020-01-15 | Jet engine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019-026290 | 2019-02-18 | ||
JP2019026290A JP7471776B2 (ja) | 2019-02-18 | 2019-02-18 | ジェットエンジン |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020170657A1 true WO2020170657A1 (ja) | 2020-08-27 |
Family
ID=72144795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2020/001067 WO2020170657A1 (ja) | 2019-02-18 | 2020-01-15 | ジェットエンジン |
Country Status (5)
Country | Link |
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US (1) | US20210293182A1 (ja) |
EP (1) | EP3812565A4 (ja) |
JP (1) | JP7471776B2 (ja) |
AU (1) | AU2020224417B2 (ja) |
WO (1) | WO2020170657A1 (ja) |
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US11434823B2 (en) * | 2020-01-06 | 2022-09-06 | Raytheon Technologies Corporation | Systems and methods for power transfer in cryogenic fuel applications |
CN114109651B (zh) * | 2021-11-09 | 2023-05-05 | 宁波天擎航天科技有限公司 | 一种固态燃料火箭组合冲压发动机 |
US20230250754A1 (en) * | 2022-02-08 | 2023-08-10 | Raytheon Technologies Corporation | Multiple turboexpander system having selective coupler |
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EP3812565A1 (en) | 2021-04-28 |
US20210293182A1 (en) | 2021-09-23 |
EP3812565A4 (en) | 2022-03-23 |
JP2020133461A (ja) | 2020-08-31 |
JP7471776B2 (ja) | 2024-04-22 |
AU2020224417B2 (en) | 2022-08-25 |
AU2020224417A1 (en) | 2021-02-25 |
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