EP3445950A1 - Energiewandlungssystem einer turbomaschine, getriebe oder lagergehäuse einer turbomaschine und turbomaschine - Google Patents
Energiewandlungssystem einer turbomaschine, getriebe oder lagergehäuse einer turbomaschine und turbomaschineInfo
- Publication number
- EP3445950A1 EP3445950A1 EP17717661.7A EP17717661A EP3445950A1 EP 3445950 A1 EP3445950 A1 EP 3445950A1 EP 17717661 A EP17717661 A EP 17717661A EP 3445950 A1 EP3445950 A1 EP 3445950A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transmission
- thermoelectric element
- turbomachine
- conversion system
- energy conversion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
- H10N10/17—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the structure or configuration of the cell or thermocouple forming the device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/12—Cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/12—Cooling
- F01D25/125—Cooling of bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/14—Casings modified therefor
-
- 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
- F02C7/12—Cooling of plants
-
- 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
- F02C7/36—Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K3/00—Plants including a gas turbine driving a compressor or a ducted fan
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
- H10N10/13—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the heat-exchanging means at the junction
-
- 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
- F05D2220/30—Application in turbines
- F05D2220/32—Application in turbines in gas turbines
- F05D2220/323—Application in turbines in gas turbines for aircraft propulsion, e.g. jet engines
-
- 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
- F05D2220/60—Application making use of surplus or waste energy
-
- 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
- F05D2220/70—Application in combination with
- F05D2220/76—Application in combination with an electrical generator
-
- 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
- F05D2260/00—Function
- F05D2260/20—Heat transfer, e.g. cooling
-
- 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 invention relates to an energy conversion system of a turbomachine with the features of claim 1, a transmission or a bearing housing of a turbomachine with the features of claim 10 and a turbomachine with the features of claim 1 1.
- thermoelectric elements In modern turbomachines, in particular aircraft engines, electrical units such as e.g. an electronic engine control (EEC), which needs to be powered. Basically, it is known from WO 01/61768 A1 to use thermoelectric elements in aircraft.
- EEC electronic engine control
- At least one gear and / or at least one bearing housing for the conversion of thermal energy into electrical energy is thermally coupled to at least one thermoelectric element. Both gearboxes and bearing housings generate a considerable amount of thermal energy, which can be converted into usable electrical energy.
- the at least one thermoelectric element is thermally coupled via a housing of the at least one transmission.
- the electrical energy generated by the at least one thermoelectric element can be used for the operation of at least one other unit of the turbomachine, in particular for an oil pump of the high-power transmission and / or a control device of the turbomachine. Since the electrical energy production is dependent on the operating state of the turbomachine, in one embodiment a power control device serves to control the electrical energy generated by the at least one thermoelectric element as a function of the operating state of the turbomachine, in particular to supply the other aggregates in whole or in part with electricity.
- At least one impact surface for oil droplets serves for thermal coupling to the at least one thermoelectric element. Both in gearboxes and in bearing housings, thermal energy is transmitted through oil droplets.
- the at least one transmission is designed as a high-performance transmission for the mechanical coupling of at least one low-pressure compressor stage with at least one turbine stage or as a further transmission.
- the at least one thermoelectric element is arranged in an aircraft engine, wherein the at least one thermoelectric element is arranged in the axial direction partially or completely between the tip of the inlet cone and the high-performance transmission.
- the at least one thermoelectric element can at least partially be attached to the housing of the at least one gear or of the at least one bearing housing, in particular be arranged completely around the circumference of the housing of the high-performance transmission and / or on the core engine.
- an embodiment of the energy conversion device may have a means for guiding cooling air to the cold side of at least one thermoelectric element.
- Fig. 1 is a schematic representation of an aircraft engine as an embodiment of a turbomachine
- FIG. 2 shows a first embodiment of an energy conversion system in an aircraft engine
- FIG. Fig. 3 shows a modification of the embodiment of FIG. 2;
- FIG. 4 shows a further embodiment of an energy conversion system in a modification of the embodiment according to FIG. 3; 5 shows a further embodiment of an energy conversion system in a modification of the embodiment according to FIG. 4;
- thermoelectric element 6 shows a schematic view of an aircraft engine with further transmissions and thus thermally coupled thermoelectric elements
- thermoelectric element 7 shows a detailed view of a further transmission with a thermally coupled thermoelectric element
- Fig. 8 is a schematic view of an aircraft engine with a bearing housing and a thermally coupled thermoelectric element as a further embodiment of an energy conversion system.
- an aircraft engine 100 in the embodiment of a safety gear with a high-power transmission 10 is shown schematically.
- the aircraft engine 10 rotates about the axis of rotation 1 10.
- the aircraft engine 100 in the direction of the substantially axial throughflow direction, an air inlet 120, a fan stage 130, which is assumed to be part of a low-pressure compressor 150, a high-pressure compressor 160, a combustion chamber 170, a high-pressure turbine 180 , a low-pressure turbine 190 and an outlet nozzle 200.
- a nacelle 210 (also referred to as nacelle) surrounds the aircraft engine 100 and defines the air inlet 120.
- the aircraft engine 100 operates in a manner known per se, so that the air entering the air inlet 120 is accelerated by the fan stage 130, wherein behind the fan stage 130 two air streams are present: A first air stream is fed into the low pressure compressor 150 within the core engine 230 second air flow is passed through a bypass duct 220 to generate the majority of the thrust. The air that does not flow through the bypass duct 220 flows through a core engine 230. The low pressure and high pressure compressor 150, 160 in the core engine 230 compress the airflow and cause it to burn into the combustor 170. The hot combustion gases exiting the combustor 170 become in the high pressure and low pressure turbines 180, 190 before they exit through the air outlet nozzle 200 to create additional thrust.
- High pressure turbine 180 and low pressure turbine 190 each drive high pressure compressor 160 and low pressure compressor 150 and fan stage 130, respectively, via a suitable shaft arrangement.
- High-pressure turbine 180, low-pressure turbine 190, high-pressure compressor 160 and / or low-pressure compressor may each consist of several stages.
- the high performance transmission 10 may comprise an epicyclic gear having a planetary or star configuration.
- alternative transmission configurations may be used so that the embodiment in FIG. 1 represents only one possible embodiment.
- the aircraft engine 100 may have a different number of shafts and / or a different number of compressors and / or turbines.
- a housing 1 1 of the heavy-duty transmission is shown only schematically. In the following sections of the housing 1 1 different embodiments are shown in more detail.
- thermoelectric elements 1 two types of transmissions 10, 20 are used in connection with an energy conversion system with thermoelectric elements 1, wherein first embodiments (FIGS. 1 to 5) are illustrated in connection with a high-performance transmission 10.
- the high performance transmission 10 couples e.g.
- an aircraft engine 100 includes a reduction gearbox (approximately 3: 1 to 4: 1) as a high-power transmission 10 between fan stages 130 and 130 Low-pressure turbine 190 on.
- the speed of the fan stage 130 may be lowered and that of the low pressure turbines 190 increased so that both components of the aircraft engine 100 may operate in their respective optimal speed ranges. Consumption and noise levels are significantly reduced.
- a further gear 20 a, 20 b, 20 c is thermally coupled to a thermoelectric element 1.
- an external gear 20a understood from the aircraft engine 100 forth -. from the outer compressor shaft (high pressure compressor) is driven out, and u.U. is located outside of the core engine 230.
- the external gear 20 a belongs to the so-called auxiliary equipment carrier (auxiliary section) of the aircraft engine 100.
- thermoelectric elements 1 A thermoelectric element 1 generates a temperature difference (Peltier effect) when there is a flow of current, or a current flow (Seebeck effect) if there is a temperature difference.
- thermoelectric effects usually the contact of two semiconductors in the thermoelectric element 1, which have a different energy level (either p- or n-type) of the conduction bands. If current is passed through two contact points of these materials, heat energy must be absorbed at one contact point, so that the electron gets into the higher energy conduction band of the adjacent semiconductor material, thus cooling occurs. At the other contact point, the electron falls from a higher to a lower energy level, so that energy is given off here in the form of heat.
- n-doped semiconductors have a lower energy level of the conduction band, the cooling takes place at the point at which electrons pass from the n-doped into the p-doped semiconductor (technical current flow from the p-doped to the n-doped semiconductor).
- thermoelectric element 1 is arranged on the outside of the housing 1 1 of the high-power transmission 10.
- the thermoelectric element 1 is here designed in a manner known per se as a flat component, in which the semiconducting components are arranged.
- the thermoelectric element 1 in the sequence is usually not shown in detail.
- the high-performance transmission 10 is arranged axially behind the fan stage 130 (and also behind the inlet cone 131) and before the low-pressure compressor 150.
- the housing 1 1 surrounds the high-performance transmission 10 all around and has a circumferential conical section.
- the thermoelectric element 1 is also arranged around the housing 1 1 here in the form of a conically arranged strip. In other embodiments, the thermoelectric element 1 extends only over part of the circumference of the housing 11.
- the hot side H of the thermoelectric element 1 is facing the high-performance transmission 10.
- oil O (symbolized in FIG. 2 by arrows) is strongly heated by the movement of the high-power transmission 10 during operation.
- the hot oil O transfers heat via a baffle 13 on the inner side of the housing 1 1, i. on the hot side H of the thermoelectric element. 1
- the cold side C of the thermoelectric element 1 is oriented in the direction of a cooling air flow A, which is directed by a means for guiding the cooling air 16, here a gap, specifically on the cold side C.
- thermoelectric element 1 a temperature difference is generated across the thermoelectric element 1, which results in a current flow I, i. electrical energy is converted.
- current flow I for space reasons is shown here only symbolically.
- an energy conversion system in which electrical energy is obtained from thermal energy in the presence of a temperature difference.
- the generated electrical energy can be used, for example, to operate another unit of the aircraft engine 100, in particular an oil pump 14 of the high-power transmission 10 and / or a control device 15 (eg the EEC, FADEC) of the aircraft engine 100, or at least auxiliary energy available for it put.
- the control device 15 and an oil pump 14 are shown schematically. In the other figures, these units are not shown for reasons of clarity.
- the thermoelectric elements 1 are also connected for reasons of clarity over lines not shown in the figures with the power control device 30 and / or the current-decreasing units, such as the control device 15 and / or the oil pump 14.
- a current control device 30 which is also shown only in FIG. 2 for reasons of clarity, serves to control the resulting current, in particular also as a function of the operating state of the aircraft engine 100.
- the operating state has an influence on the temperature differences across the thermoelectric elements 1, so that, for example, more power is available from the energy conversion systems in the full load range than in the low load range. However, since the aggregates can be supplied with power partly or completely via the energy conversion systems, this results in a more efficient power supply in the aircraft engine.
- An example calculation shows that, in the presence of a temperature difference between the cold and hot side C, H of the thermoelectric element 1 of 160 ° C, an electrical power of about 1 kW can be achieved.
- the surface of the thermoelectric element 1 is about 0.2 m 2 , the weight about 3.5 kg.
- FIG. 3 another embodiment of the energy conversion system is shown, which differs from the embodiment of FIG. 2 in that the flow of cooling air K is not passed through a gap in the core engine 230, but the air flowing into the low-pressure compressor 150 air A is used for cooling.
- the cold side C of the thermoelectric element 1 is turned outward, the hot side H is located on the housing 1 1 of the high-power transmission 10. Otherwise, this embodiment corresponds to that shown in Fig. 2, so that reference can be made to the corresponding description.
- thermoelectric element 1 is - unlike the embodiment of FIG. 3 - not on the housing 1 1 but arranged on the wall of the core engine 230.
- the heat transfer inside the housing 1 1 takes place in this case u.a. also by bleed air, which escapes the front bearing on the housing 1 1.
- FIG. 5 shows a further embodiment of the energy conversion system, in which - as in the embodiment according to FIG. 4 - the cold side C of the thermoelectric element 1 is arranged on the core engine 230.
- the hot side H of the thermoelectric element 1 is - as in the embodiment of FIGS. 2 and 3 - arranged on the housing 1 1 of the high-power transmission 10.
- the cold side C and the hot side H of the electrothermal element 1 semiconducting elements 2 are arranged, which are required for the utilization of the Seebeck effect anyway.
- FIGS. 2 to 8 embodiments using a high power transmission (Power Gearbox) have been described as catching gears.
- FIGS. 6 to 8 Embodiments are described in FIGS. 6 to 8 which can be operated alternatively or in addition to these safety gear embodiments and in which at least one thermoelectric element 1 is thermally coupled to a further gear 20a, 20b, 20c or a bearing housing 30 in order to heat there To convert energy into electrical energy.
- FIG. 6 shows a per se known aircraft engine 100 with a series of further transmissions 20a, 20b, 20c, which warm up during operation, so that the thermoelectric elements 1 can convert the respectively emitted thermal energy into electrical energy.
- a first transmission is the external transmission 20a (also called accessory gearbox), which generally extends around a certain angular range around the aircraft engine 100 (see also Fig. 7).
- a thermoelectric element 1 Disposed on the outside of the first gear 20a is a thermoelectric element 1 which, as described in the other embodiments, supplies electrical energy for complete or assistive operation, e.g. generated by tax submissions 15 or other aggregates.
- a second gear 20b is a deflection gear, which is additionally or alternatively provided with a thermoelectric element 1.
- the third gear 20 c is an internal gear, which is also additionally or alternatively provided with a thermoelectric element 1.
- a rough calculation shows that at a temperature difference of 80 to 1 10 60 ° C - so much less than in the case of the high-performance transmission 10 - an electrical power of about 1 kW can be generated. In principle, it is possible to generate between 800 and 1600 W / m 2 .
- the temperature difference depends on the oil temperature in the gear 20a, 20b, 20c.
- the here set temperature difference of 60 ° C is used as the lower limit, which is obtained for example in a partial load operation. At full load, a temperature difference of eg 160 ° C may be incurred.
- the power control device 30 may control which power units 14, 15 in the aircraft engine 100 are powered in what operating condition.
- An aggregate with a relatively high power consumption, such as the oil pump 14 may e.g. be supplied selectively in full load operation by the thermoelectric element 1.
- a comparative low-consumption consumer such as the control device 15 (EEC, FADEC) can be continuously supplied with electrical energy from one of the energy conversion devices at full load, partial load or low load.
- Fig. 7 is a plan view of the first gear, the external gear 20 a is shown. The arrow on the right indicates the direction to the inlet area of the aircraft engine 100, not shown here.
- thermoelectric element 1 is arranged here in the region of an oil reservoir and the arrow direction is overflowed by cooling air A.
- thermoelectric element 1 Thermally quite comparable to a transmission housing 11, bearing housings 30, e.g. a ball bearing. Here, too, precipitated considerable thermal energy, which can be converted by means of at least one thermoelectric element 1 into electrical energy.
- a bearing housing 40 of the front shaft bearing (front bearing) of the aircraft engine is shown schematically. Again, the temperature difference across a thermoelectric element 1 can be used to generate electrical energy for the operation of other aggregates. Similar to the high-performance transmission, oil is heated in the front shaft bearing. The heat transfer takes place in the interior of the housing 1 1 by oil droplets. LIST OF REFERENCE NUMBERS
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- General Details Of Gearings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016107303.2A DE102016107303A1 (de) | 2016-04-20 | 2016-04-20 | Energiewandlungssystem einer Turbomaschine, Getriebe oder Lagergehäuse einer Turbomaschine und Turbomaschine |
PCT/EP2017/058688 WO2017182334A1 (de) | 2016-04-20 | 2017-04-11 | Energiewandlungssystem einer turbomaschine, getriebe oder lagergehäuse einer turbomaschine und turbomaschine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3445950A1 true EP3445950A1 (de) | 2019-02-27 |
Family
ID=58548682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17717661.7A Withdrawn EP3445950A1 (de) | 2016-04-20 | 2017-04-11 | Energiewandlungssystem einer turbomaschine, getriebe oder lagergehäuse einer turbomaschine und turbomaschine |
Country Status (4)
Country | Link |
---|---|
US (1) | US20190115518A1 (de) |
EP (1) | EP3445950A1 (de) |
DE (1) | DE102016107303A1 (de) |
WO (1) | WO2017182334A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3091900B1 (fr) * | 2019-01-17 | 2022-05-27 | Safran Aircraft Engines | Turbomachine comprenant un panneau d’echange thermique et de production d’energie electrique |
US11987374B2 (en) * | 2021-01-28 | 2024-05-21 | The Boeing Company | Systems and methods for driving fan blades of an engine |
CN114076324B (zh) * | 2022-01-19 | 2022-07-08 | 中国航发四川燃气涡轮研究院 | 能够自动调节掺混进气的燃烧室 |
US11665963B1 (en) * | 2022-04-22 | 2023-05-30 | Hamilton Sundstrand Corporation | Waste heat capture using tail cone of a gas turbine engine |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA834433A (en) * | 1970-02-17 | Dowty Rotol Limited | Gas turbine engines | |
AU2001239730A1 (en) | 2000-02-18 | 2001-08-27 | Motorola, Inc. | Thermoelectric power generator for an aircraft |
JP2008157362A (ja) * | 2006-12-25 | 2008-07-10 | Ntn Corp | 転がり軸受 |
US9018512B2 (en) * | 2007-12-21 | 2015-04-28 | The Boeing Company | Thermoelectric generation system |
EP2461296A1 (de) * | 2010-12-02 | 2012-06-06 | Techspace Aero S.A. | Überwachungsvorrichtung einer luftfahrttechnischen Ausrüstung |
US20120192908A1 (en) * | 2011-02-01 | 2012-08-02 | Simmonds Precision Products, Inc. | Sinkless thermoelectric energy generator |
GB2496839A (en) * | 2011-10-24 | 2013-05-29 | Ge Aviat Systems Ltd | Thermal electrical power generation for aircraft |
FR2989734B1 (fr) * | 2012-04-24 | 2014-04-18 | Snecma | Turboreacteur incorporant des generateurs thermoelectriques |
WO2015073101A2 (en) * | 2013-09-16 | 2015-05-21 | United Technologies Corporation | Systems for generating auxillary electrical power for jet aircraft propulsion systems |
-
2016
- 2016-04-20 DE DE102016107303.2A patent/DE102016107303A1/de not_active Withdrawn
-
2017
- 2017-04-11 US US16/088,898 patent/US20190115518A1/en not_active Abandoned
- 2017-04-11 EP EP17717661.7A patent/EP3445950A1/de not_active Withdrawn
- 2017-04-11 WO PCT/EP2017/058688 patent/WO2017182334A1/de active Application Filing
Also Published As
Publication number | Publication date |
---|---|
DE102016107303A1 (de) | 2017-10-26 |
WO2017182334A1 (de) | 2017-10-26 |
US20190115518A1 (en) | 2019-04-18 |
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