CN112049696A - Novel micro-miniature turbine engine starting motor device - Google Patents
Novel micro-miniature turbine engine starting motor device Download PDFInfo
- Publication number
- CN112049696A CN112049696A CN202011032414.4A CN202011032414A CN112049696A CN 112049696 A CN112049696 A CN 112049696A CN 202011032414 A CN202011032414 A CN 202011032414A CN 112049696 A CN112049696 A CN 112049696A
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- Prior art keywords
- turbine engine
- starter motor
- starting motor
- motor
- starter
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- 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.)
- Pending
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- 239000007858 starting material Substances 0.000 claims abstract description 123
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000009347 mechanical transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
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- 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
- F01D25/34—Turning or inching gear
- F01D25/36—Turning or inching gear using electric motors
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- 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
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- 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
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
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- 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
- F02C7/16—Cooling of plants characterised by cooling medium
- F02C7/18—Cooling of plants characterised by cooling medium the medium being gaseous, e.g. air
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- 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
- F02C7/268—Starting drives for the rotor, acting directly on the rotor of the gas turbine to be started
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a novel micro-miniature turbine engine starting motor device, which consists of three parts, namely a turbine engine, a starting motor and a starting motor fixing seat part; the turbine engine also comprises a turbine engine main shaft, a centrifugal compressor and an impeller housing; the starter motor also comprises a starter motor rotor, a starter motor stator component and a starter motor lead. The invention has the advantages that: the starting motor and the engine work as equal-height generators, a speed reducer is not needed, the generator does not need to be supported by an extra high-speed bearing, and a rotor of the starting motor and a front nut of an engine impeller are integrated, so that the engine impeller can be screwed, and the rotor of the generator and magnetic steel can be fixed in the rotor of the generator; compared with a low-speed brush motor, the starter generator has the advantages of long service life, high reliability and high generated power density.
Description
Technical Field
The invention relates to the technical field of miniature turbine engines, in particular to a novel miniature turbine engine starting motor device.
Background
The microminiature aviation turbine engine can be divided into a microminiature turbojet engine, a microminiature turboprop engine, a microminiature turboshaft engine and the like; at present, most of the miniature aviation turbine engines used only have a starting motor. When the micro aerial turbine engine starts, the on-board power supply drives the starting motor to work, the starting motor clutch drives the compressor impeller rotor to rotate until the micro aerial turbine engine accelerates to an idle state, and then the starting motor automatically disengages from the compressor impeller rotor. In the early days, the large turbine engine is widely used by taking mechanical transmission modes such as hydraulic pressure, air pressure and the like as main development directions; along with the development and development of an electric power system and a high-density circuit, the electric power system is combined with the traditional hydraulic and pneumatic mechanical transmission, so that the electric power system is used as a main starting power system of a micro-miniature aviation turbine engine in a front starting state.
After the micro-miniature aviation turbine engine is successfully started, the starting motor does not play an additional role, even the weight of the micro-miniature aviation turbine engine is cumbersome, and particularly the endurance and the fuel consumption of the micro-miniature aviation turbine engine are influenced; because the starting motor is in driving connection with the rotor of the microminiature aircraft turbine engine through the overrunning clutch, frequent starting often seriously affects the service life of the clutch and even the success probability of starting the microminiature aircraft turbine engine; with the increase of the working time of the micro aviation turbine engine and the increase of the electricity consumption and power consumption of the airborne equipment, the airborne battery cannot support the requirement of long-time high-power supply, and the micro aviation turbine engine has more urgent requirements on the power generation output.
The invention provides a novel micro-miniature turbine engine starting motor device, based on the situation, the starting motor can solve the pain points, the generator is driven to rotate by the power supply of an onboard small-capacity battery until the micro-miniature turbine engine is accelerated to an idle speed, then the starting motor enters a power generation mode, and the generated alternating current is processed by a rectifier and then charges the battery and supplies power for the operation of onboard equipment. The starter motor is a high-speed generator with the same rotating speed as the micro turbine engine, a speed reducer is not needed, the generator does not need to be additionally supported by a high-speed bearing, a rotor of the starter motor and a front nut of an impeller of the micro turbine engine are integrated, the impeller of the micro turbine engine can be screwed down, the rotor of the generator is fixed inside the generator by magnetic steel, a stator of the starter motor is fixed on a motor base, and the motor base is fixedly connected with an impeller housing of the micro turbine engine through a support frame by bolts, so that the assembly, disassembly and maintenance are convenient; compared with a low-speed brush motor, the starter motor has the advantages of long service life, high reliability and high generated power density; this starter motor does not need independent liquid cooling, can directly take away the heat that starter motor produced through the cooling hole, has saved independent refrigerated pipeline equipment, and it is convenient to use.
Disclosure of Invention
The invention provides a novel micro-miniature turbine engine starting motor device, which drives a generator to rotate by supplying power to an onboard small-capacity battery until the micro-miniature turbine engine accelerates to an idle speed, then the starting motor enters a power generation mode, and the generated alternating current is processed by a rectifier and then is used for charging the battery and supplying power for the operation of onboard equipment. The starter motor is a high-speed generator with the same rotating speed as the micro turbine engine, a speed reducer is not needed, the generator does not need to be additionally supported by a high-speed bearing, a rotor of the starter motor and a front nut of an impeller of the micro turbine engine are integrated, the impeller of the micro turbine engine can be screwed down, the rotor of the generator is fixed inside the generator by magnetic steel, a stator of the starter motor is fixed on a motor base, and the motor base is fixedly connected with an impeller housing of the micro turbine engine through a support frame by bolts, so that the assembly, disassembly and maintenance are convenient; compared with a low-speed brush motor, the starter motor has the advantages of long service life, high reliability and high generated power density; this starter motor does not need independent liquid cooling, can directly take away the heat that starter motor produced through the cooling hole, has saved independent refrigerated pipeline equipment, and it is convenient to use.
The invention adopts a technical scheme that:
a novel micro-miniature turbine engine starter motor device comprises a turbine engine, a starter motor and a starter motor fixing seat component; the turbine engine also comprises a turbine engine main shaft, a centrifugal compressor and an impeller housing, wherein the turbine engine main shaft is sleeved in a central through hole of the centrifugal compressor, and the centrifugal compressor is arranged in the impeller housing; the starting motor further comprises a starting motor rotor, a starting motor stator part and a starting motor conducting wire, wherein the starting motor rotor is connected with the turbine engine spindle, and is arranged in the starting motor stator part.
Further, the tail end of the main shaft of the turbine engine is provided with a threaded hole, and the screwing direction of the threaded hole is opposite to the rotating direction of the centrifugal compressor.
Furthermore, the rotor of the starting motor further comprises magnetic steel, the magnetic steel is arranged in the rotor of the starting motor, and the rotor of the starting motor and the front nut of the centrifugal compressor are integrated.
Further, an internal threaded hole is formed in the starting motor rotor, and the starting motor rotor is connected with the turbine engine spindle through threaded connection.
Furthermore, the stator part of the starter motor is formed by wrapping a plurality of groups of metal coils, the stator part of the starter motor is provided with air cooling holes, and the coils of the stator part of the starter motor are connected with leads.
Furthermore, the starter motor fixing seat part further comprises a starter motor fixing seat and a support frame, the starter motor stator part is arranged on the starter motor fixing seat, the starter motor fixing seat is fixedly connected through the support frame, the support frame is connected with the impeller housing, a through hole a is formed in the starter motor fixing seat, and the through hole a and the air cooling hole are concentric through holes.
Furthermore, a wire guide hole a and a fixing screw hole a are arranged in the support frame, the wire guide hole a and the fixing screw hole a are through holes, and the outer surface of the support frame has a certain radian.
Furthermore, the impeller housing is provided with a wire guide hole b and a fixing screw hole b, and the support frame is connected with the impeller housing through screws.
Furthermore, the starter motor fixing seat further comprises a starter motor fixing bolt, and the starter motor fixing bolt is connected with the starter motor fixing seat.
Furthermore, the lead of the starter motor further comprises a lead a of the starter motor, a lead b of the starter motor and a lead c of the starter motor, and the lead a of the starter motor, the lead b of the starter motor and the lead c of the starter motor respectively penetrate through the lead hole a arranged in the support frame and then penetrate out of the lead hole b.
Further, the starting motor is a three-phase alternating current brushless motor.
The beneficial effects of the invention are:
1. the invention drives the generator to rotate by the power supplied by the onboard small-capacity battery until the microminiature turbine engine accelerates to an idle speed, then starts the generator to enter a power generation mode, and the generated alternating current is processed by the rectifier to charge the battery and supply power for the operation of the onboard equipment.
2. The invention discloses a starter motor which is a high-speed generator with the rotating speed of working with a micro turbine engine and the like, does not need a speed reducer, does not need an additional high-speed bearing support, integrates a starter motor rotor and a front nut of an impeller of the micro turbine engine, not only can screw the impeller of the micro turbine engine, but also fixes the rotor of the generator comprising magnetic steel inside, fixes a stator of the starter motor on a motor base, and is fixedly connected with a housing of the impeller of the micro turbine engine through a support frame by bolts, thereby being convenient for assembly, disassembly and maintenance.
3. Compared with a low-speed brush motor, the starter generator has the advantages of long service life, high reliability and high generated power density; this starter motor does not need independent liquid cooling, can directly take away the heat that starter motor produced through the cooling hole, has saved independent refrigerated pipeline equipment, and it is convenient to use.
4. The invention discloses a motor fixing seat which has the characteristics of aerodynamic design, smooth air flow circulation of an air inlet and small flow resistance.
Drawings
FIG. 1 is a schematic view of a novel miniature turbine engine starter motor assembly of the present invention;
FIG. 2 is a partial enlarged schematic view of a novel miniature turbine engine starter motor device of the present invention;
FIG. 3 is a schematic view of the rotor and stator components of the starter motor of the present invention;
FIG. 4 is a schematic view of the starter motor holder assembly and impeller housing of the present invention;
FIG. 5 is a schematic view of the starter motor mount of the present invention;
FIG. 6 is a partial schematic view of the starter motor of the present invention;
the parts in the drawings are numbered as follows:
1: turbine engine, 11: turbine engine main shaft, 12: centrifugal compressor, 13: an impeller housing; 2: starting a motor; 21: starting motor rotor, 22: starter motor stator part, 23: starter motor lead, 24: magnetic steel, 25: metal coil, 26: air cooling hole, 27: lead wire, 28: starter motor leads a, 29: starter motor leads b, 210: a starter motor lead c; 3: starter motor mount part, 31: starting motor fixing base, 32: support frame, 33: air-cooling through holes a, 34: wire guides a, 35: set screw holes a, 36: wire guides b, 37: set screw holes b, 38: the starter motor fixing bolt.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
As shown in fig. 1-6, the novel micro-miniature turbine engine starter motor device in the present embodiment is composed of three major components, namely a turbine engine 1, a starter motor 2 and a starter motor fixing seat component 3; the turbine engine 1 further comprises a turbine engine spindle 11, a centrifugal compressor 12 and an impeller housing 13, wherein the turbine engine spindle sleeve 11 is arranged in a central through hole of the centrifugal compressor 12, and the centrifugal compressor 12 is arranged in the impeller housing 13; the starter motor 2 further comprises a starter motor rotor 21, a starter motor stator part 22 and a starter motor lead 23, the starter motor rotor 21 is connected with the turbine engine spindle 11, and the starter motor rotor 21 is arranged in the starter motor stator part 22;
in this embodiment, a threaded hole is formed at the end of the main shaft 11 of the turbine engine, and the thread turning direction is opposite to the rotation direction of the centrifugal compressor 12;
further, the starter motor rotor 21 further comprises a magnetic steel 24, the magnetic steel 24 is arranged in the starter motor rotor 21, the starter motor rotor 21 and the front nut of the centrifugal compressor 12 are integrated, the weight of the structure is reduced, and the centrifugal compressor 12 can be screwed down;
further, an internal threaded hole is formed in the starter motor rotor 21, and the starter motor rotor is connected with the turbine engine spindle 11 through threaded connection, so that the turbine engine 1 and the starter motor 2 have the same rotating speed, and the starter motor 2 is prevented from being separated from the turbine engine 1 when working;
further, the stator part 22 of the starter motor is formed by wrapping a plurality of groups of metal coils 25, the stator part 22 of the starter motor is provided with air cooling holes 26, the starter motor 2 does not need independent liquid cooling, heat generated in the starter motor 2 is directly taken away through the air cooling holes 26 in the working process of the turbine engine 1, independently cooled pipeline equipment is reduced, and the coils of the stator part 22 of the starter motor are connected with the lead 27 to ensure that the starter motor 2 forms a closed loop to normally work;
further, the starter motor fixing seat part 3 further comprises a starter motor fixing seat 31 and a support frame 32, the starter motor stator part 22 is arranged on the starter motor fixing seat 31, the starter motor fixing seat 31 is fixedly connected through the support frame 32, the support frame 32 is connected with the impeller housing 13, a through hole a33 is formed in the starter motor fixing seat 32, the through hole a33 and the air cooling hole 26 are concentric through holes, and therefore the starter motor 2 can be cooled during work, the service life is prolonged, and the work efficiency is improved;
furthermore, a wire guide hole a34 and a fixing screw hole a35 are arranged in the support frame 32, the wire guide hole a34 and the fixing screw hole a35 are through holes, all power circuits are pre-arranged in the turbine engine 1, the pneumatic problem caused by exposure caused by external exposure is reduced, and the outer surface of the support frame 32 has a certain radian, so that the incoming airflow is smooth in circulation, and the flow resistance is reduced;
furthermore, the impeller housing is provided with a wire guide hole b36 and a fixing screw hole b37, the support frame 32 is connected with the impeller housing 13 through screws, the starter motor fixing seat 31 is fixedly connected with the impeller housing 13 through three support frames 32 through bolts, the distance between the three support frames 32 is 120 degrees, and the assembly, disassembly and maintenance are convenient;
further, the starter motor fixing seat 31 further comprises a starter motor fixing bolt 38, the starter motor fixing bolt 38 is connected with the starter motor fixing seat 31, and the starter motor stator part 22 is fixed by the starter motor fixing bolt 38;
further, the starter motor lead 23 further includes a starter motor lead a28, a starter motor lead b29, and a starter motor lead c210, and the starter motor lead a28, the starter motor lead b29, and the starter motor lead c210 respectively pass through the lead hole a28 provided in the support frame 32, and then pass through the lead hole b 36;
further, the starting motor 2 is a three-phase alternating-current brushless motor, and compared with a low-speed brush motor, the starting motor 2 has the advantages of long service life, high reliability and high generated power density.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A novel micro-miniature turbine engine starting motor device comprises a turbine engine (1), a starting motor (2) and a starting motor fixing seat part (3); the method is characterized in that: the turbine engine (1) further comprises a turbine engine spindle (11), a centrifugal compressor (12) and an impeller housing (13), wherein the turbine engine spindle sleeve (11) is arranged in a central through hole of the centrifugal compressor (12), and the centrifugal compressor (12) is arranged in the impeller housing (13); the starting motor (2) further comprises a starting motor rotor (21), a starting motor stator part (22) and a starting motor lead (23), the starting motor rotor (21) is connected with the turbine engine spindle (11), and the starting motor rotor (21) is arranged in the starting motor stator part (22).
2. The new micro-miniature turbine engine starting motor device as claimed in claim 1, wherein: the tail end of the main shaft (11) of the turbine engine is provided with a threaded hole, and the screwing direction of the threaded hole is opposite to the rotating direction of the centrifugal compressor (12).
3. The new micro-miniature turbine engine starting motor device as claimed in claim 1, wherein: the starting motor rotor (21) further comprises a magnetic steel (24), the magnetic steel (24) is arranged in the starting motor rotor (21), and the starting motor rotor (21) and the front nut of the centrifugal compressor (12) are integrated.
4. The new micro-miniature turbine engine starting motor device as claimed in claim 1, wherein: an internal threaded hole is formed in the starting motor rotor (21), and the starting motor rotor (21) is connected with the turbine engine spindle (11) through threaded connection.
5. The new micro-miniature turbine engine starting motor device as claimed in claim 1, wherein: the stator component (22) of the starter motor is formed by wrapping a plurality of groups of metal coils (25), air cooling holes (26) are formed in the stator component (22) of the starter motor, and the coils of the stator component (22) of the starter motor are connected with leads (27).
6. The new micro-miniature turbine engine starting motor device as claimed in claim 5, wherein: the starter motor fixing seat component (3) further comprises a starter motor fixing seat (31) and a supporting frame (32), the starter motor stator component (22) is arranged on the starter motor fixing seat (31), the starter motor fixing seat (31) is connected and fixed through the supporting frame (32), the supporting frame (32) is connected with the impeller housing (13), a through hole a (33) is formed in the starter motor fixing seat (32), and the through hole a (33) and the air cooling hole (26) are concentric through holes.
7. The new micro-miniature turbine engine starting motor device as claimed in claim 5, wherein: the wire guide hole a (34) and the fixing screw hole a (35) are arranged in the support frame (32), the wire guide hole a (34) and the fixing screw hole a (35) are through holes, and the outer surface of the support frame (32) has a certain radian.
8. The new micro-miniature turbine engine starting motor device as claimed in claim 1, wherein: the impeller housing (13) is provided with a wire guide hole b (36) and a fixing screw hole b (37), and the support frame (32) is connected with the impeller housing (13) through screws.
9. The new micro-miniature turbine engine starting motor device as claimed in claim 6, wherein: the starter motor fixing seat (31) further comprises a starter motor fixing bolt (38), and the starter motor fixing bolt (38) is connected with the starter motor fixing seat (31).
10. The new micro-miniature turbine engine starting motor device as claimed in claim 1, wherein: the starter motor lead (23) further comprises a starter motor lead a (28), a starter motor lead b (29) and a starter motor lead c (210), wherein the starter motor lead a (28), the starter motor lead b (29) and the starter motor lead c (210) respectively penetrate through a lead hole a (34) formed in the support frame (32) and then penetrate out of a lead hole b (36) formed in the impeller housing (13).
Priority Applications (1)
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CN202011032414.4A CN112049696A (en) | 2020-09-27 | 2020-09-27 | Novel micro-miniature turbine engine starting motor device |
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CN202011032414.4A CN112049696A (en) | 2020-09-27 | 2020-09-27 | Novel micro-miniature turbine engine starting motor device |
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CN112049696A true CN112049696A (en) | 2020-12-08 |
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CN202011032414.4A Pending CN112049696A (en) | 2020-09-27 | 2020-09-27 | Novel micro-miniature turbine engine starting motor device |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112653272A (en) * | 2020-12-11 | 2021-04-13 | 清华大学 | Compressor and starting integrated motor integration of aircraft turbine engine |
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2020
- 2020-09-27 CN CN202011032414.4A patent/CN112049696A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112653272A (en) * | 2020-12-11 | 2021-04-13 | 清华大学 | Compressor and starting integrated motor integration of aircraft turbine engine |
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