CN108825384B - Oil-gas mixing starting device - Google Patents
Oil-gas mixing starting device Download PDFInfo
- Publication number
- CN108825384B CN108825384B CN201810981035.6A CN201810981035A CN108825384B CN 108825384 B CN108825384 B CN 108825384B CN 201810981035 A CN201810981035 A CN 201810981035A CN 108825384 B CN108825384 B CN 108825384B
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- Prior art keywords
- oil
- fuel
- pipes
- conduit
- engine
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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.)
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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
- F02C7/26—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
- 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
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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
- F02C7/22—Fuel supply systems
- F02C7/222—Fuel flow conduits, e.g. manifolds
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The invention relates to the technical field of engine starters, in particular to an oil-gas mixing starting device for a miniature turbojet engine. The engine is characterized by comprising a main oil way conduit and a fuel gas conduit which are arranged on an engine air inlet cover and a diffuser, wherein the main oil way conduit and the fuel gas conduit are connected with a fuel oil distribution plate, a plurality of main oil way oil pipes and air pipes are arranged on the fuel oil distribution plate, the main oil way oil pipes and the air pipes extend into an evaporation pipe in a combustion chamber, an ignition head is correspondingly arranged at the end part of the combustion chamber through the fuel oil distribution plate, the ignition head is connected with the ignition oil way conduit through the ignition oil pipes, the combustion chamber is arranged on a deflector, and the deflector is arranged on a heat insulation sleeve on a bearing sleeve. The hybrid starting mode is adopted, so that the engine is quickly warmed up and started quickly; the fuel ignition head is used, so that the work is stable and reliable, and the service life is long; simple and reliable structure and strong adaptability in extreme environment.
Description
Technical Field
The invention relates to the technical field of engine starters, in particular to an oil-gas mixing starting device for a miniature turbojet engine.
Background
Because the miniature turbojet engine can not automatically turn into a working state from a static state, the crankshaft must be rotated by external force until the crankshaft reaches the rotating speed required by starting combustion of the engine, and the formation, compression and ignition of the mixed gas can be smoothly carried out. The whole process of the engine from rest to working state is called engine start. The series of devices required to complete the engine starting process are referred to as engine starting devices.
Almost all current automotive engines are started with an electric starter. When the driving gear on the motor shaft is meshed with the ring gear on the periphery of the flywheel of the engine, electromagnetic torque generated when the motor rotates is transmitted to the crankshaft of the engine through the flywheel, so that the engine is started. The electric starter is simply called as starter. The device uses the storage battery as a power supply, and has the advantages of simple structure, convenient operation and quick and reliable starting.
Chinese patent No. CN106882393a discloses an unmanned aerial vehicle engine starting device. The invention provides an unmanned aerial vehicle engine starting device, wherein an engine is arranged on a nose of an unmanned aerial vehicle and comprises an engine main shaft, a shaft sleeve fixing plate is fixedly arranged on an outer sleeve of the engine main shaft, and a starting motor is fixedly arranged on the shaft sleeve fixing plate and comprises a motor and a gear; the double gear is fixedly arranged on the shaft sleeve fixing plate and comprises a large wheel and a small wheel, and the large wheel in the double gear is meshed with the gear in the starting motor; a spiral positioning column is nested on a main shaft of the engine, and a unidirectional gear is nested on the spiral positioning column and meshed with a small wheel in the duplex gear; the end part of the main shaft of the engine is provided with the propeller hub, the propeller hub is provided with the propeller, the whole ignition process is short in duration, convenient to use and low in energy consumption, and the ignition device is a simpler and practical ignition mode, but only supports one ignition mode.
The starting mode of the miniature turbine engine in the prior art is gas starting or fuel starting, the working load of a fire head of the gas starting mode is high, the miniature turbine engine is easy to damage, and the miniature turbine engine is not smooth in ignition when the ambient wind speed is high; the fuel oil starting mode has long preheating time, slow starting, reduced fuel fluidity in low temperature environment and high ignition failure rate.
Disclosure of Invention
The invention aims to avoid the defects of the prior art and provide a non-contact electromagnetic clutch for a miniature turbojet engine, thereby solving the problems in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the oil-gas mixing starting device is characterized by comprising a main oil way conduit and a gas conduit which are arranged on an engine air inlet cover and a diffuser, wherein the main oil way conduit and the gas conduit are connected with a fuel oil distribution plate, a plurality of main oil way oil pipes and gas pipes are arranged on the fuel oil distribution plate, the main oil way oil pipes and the gas pipes extend into an evaporation pipe in a combustion chamber, an ignition head is correspondingly arranged at the end part of the combustion chamber through the fuel oil distribution plate, the ignition head is connected with the ignition oil way conduit through the ignition oil pipes, the combustion chamber is arranged on a deflector, and the deflector is arranged on a heat insulation sleeve on a bearing sleeve.
The main oil way conduit is connected with a plurality of main oil way oil pipes through the fuel oil distribution plate, the fuel gas conduit is connected with a plurality of air pipes through the fuel oil distribution plate, and a shell is arranged outside the combustion chamber.
The beneficial effects of the invention are as follows: the oil-gas mixing starting device adopts a mixing starting mode, so that the engine is quickly preheated and started quickly; the fuel ignition head is used, so that the work is stable and reliable, and the service life is long; simple and reliable structure and strong adaptability in extreme environment.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic diagram of an ignition oil path conduit arrangement structure of the present invention.
The figure shows: 1. a main oil duct; 2. an air inlet cover; 3. a diffuser; 4. a fuel distribution plate; 5. a housing; 6. an air pipe; 7. a main oil line; 8. a combustion chamber; 9. a deflector; 10. a heat insulating sleeve; 11. a bearing sleeve; 12. igniting the head; 13. an ignition oil pipe; 14. a gas conduit; 15. and an ignition oil path conduit.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
As shown in fig. 1 and 2, the oil-gas mixing starting device is characterized by comprising a main oil path guide pipe 1 and a gas guide pipe 14 which are arranged on an engine air inlet cover 2 and a diffuser 3, wherein the main oil path guide pipe 1 and the gas guide pipe 14 are connected with a fuel oil distribution plate 4, a plurality of main oil path oil pipes 7 and gas pipes 6 are arranged on the fuel oil distribution plate 4, the main oil path oil pipes 7 and the gas pipes 6 extend into evaporation pipes in a combustion chamber 8, a lighting head 12 is correspondingly arranged at the end part of the combustion chamber 8 through the fuel oil distribution plate 4, the lighting head 12 is connected with a lighting oil path guide pipe 15 through a lighting oil pipe 13, the combustion chamber 8 is arranged on a deflector 9, and the deflector 9 is arranged on a heat insulation sleeve 10 on a bearing sleeve 11.
The main oil way conduit 1 is connected with a plurality of main oil way oil pipes 7 through the fuel oil distribution plate 4, the fuel gas conduit 14 is connected with a plurality of air pipes 6 through the fuel oil distribution plate 4, and the outside of the combustion chamber 8 is also provided with a shell 5.
The oil-gas mixing starting device can simultaneously ignite fuel gas and fuel oil through the ignition head 12 to cause the combustion of the upper combustion chamber.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (1)
1. The oil-gas mixing starting device is characterized by comprising a main oil way conduit and a gas conduit which are arranged on an engine air inlet cover and a diffuser, wherein the main oil way conduit and the gas conduit are connected with a fuel oil distribution plate, a plurality of main oil way oil pipes and gas pipes are arranged on the fuel oil distribution plate, the main oil way oil pipes and the gas pipes extend into an evaporation pipe in a combustion chamber, an ignition head is correspondingly arranged at the end part of the combustion chamber through the fuel oil distribution plate, the ignition head is connected with the ignition oil way conduit through the ignition oil pipe, the combustion chamber is arranged on a deflector, and the deflector is arranged on a heat insulation sleeve on a bearing sleeve;
the main oil way conduit is connected with a plurality of main oil way oil pipes through the fuel oil distribution plate, the fuel gas conduit is connected with a plurality of air pipes through the fuel oil distribution plate, and a shell is arranged outside the combustion chamber;
the starting device is used for igniting fuel gas and fuel oil simultaneously through the ignition head to cause the combustion of the upper combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810981035.6A CN108825384B (en) | 2018-08-27 | 2018-08-27 | Oil-gas mixing starting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810981035.6A CN108825384B (en) | 2018-08-27 | 2018-08-27 | Oil-gas mixing starting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108825384A CN108825384A (en) | 2018-11-16 |
| CN108825384B true CN108825384B (en) | 2023-10-20 |
Family
ID=64150798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810981035.6A Active CN108825384B (en) | 2018-08-27 | 2018-08-27 | Oil-gas mixing starting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108825384B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985215B (en) * | 2019-12-27 | 2024-05-24 | 西安觉天动力科技有限责任公司 | Integrated system for starting of micro turbojet engine |
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| US4288980A (en) * | 1979-06-20 | 1981-09-15 | Brown Boveri Turbomachinery, Inc. | Combustor for use with gas turbines |
| US5237812A (en) * | 1992-10-07 | 1993-08-24 | Westinghouse Electric Corp. | Auto-ignition system for premixed gas turbine combustors |
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| DE10112864A1 (en) * | 2001-03-16 | 2002-09-19 | Alstom Switzerland Ltd | Process for igniting a thermal turbomachine |
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| CN106640379A (en) * | 2016-10-17 | 2017-05-10 | 中国民用航空飞行学院 | Starting and oil-supply system of micro turbine engine and starting and oil-supply method thereof |
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| US4288980A (en) * | 1979-06-20 | 1981-09-15 | Brown Boveri Turbomachinery, Inc. | Combustor for use with gas turbines |
| US5237812A (en) * | 1992-10-07 | 1993-08-24 | Westinghouse Electric Corp. | Auto-ignition system for premixed gas turbine combustors |
| US5511375A (en) * | 1994-09-12 | 1996-04-30 | General Electric Company | Dual fuel mixer for gas turbine combustor |
| CA2335019A1 (en) * | 1998-06-18 | 2000-01-06 | Abb Ab | A method for starting a combustion device |
| JP2004085123A (en) * | 2002-08-28 | 2004-03-18 | Toyota Central Res & Dev Lab Inc | Combustor for gas turbine |
| CA2504114A1 (en) * | 2004-04-20 | 2005-10-20 | Gustavo Francisco Labala | Turbine, particularly useful for small aircraft |
| CN101881238A (en) * | 2010-06-10 | 2010-11-10 | 西北工业大学 | Air-breathing pulse detonation engine and detonation method thereof |
| CN103161576A (en) * | 2011-12-12 | 2013-06-19 | 诺沃皮尼奥内有限公司 | Turning gear for gas turbine arrangements |
| CN104345273A (en) * | 2013-07-24 | 2015-02-11 | 中国国际航空股份有限公司 | Starter performance detection method and apparatus of airplane auxiliary power unit (APU) |
| CN106762157A (en) * | 2016-12-27 | 2017-05-31 | 中国南方航空工业(集团)有限公司 | Big aircraft floor starting device |
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| CN208633925U (en) * | 2018-08-27 | 2019-03-22 | 西北工业大学 | A kind of air-fuel mixture starter |
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| Publication number | Publication date |
|---|---|
| CN108825384A (en) | 2018-11-16 |
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Effective date of registration: 20220527 Address after: 710075 1-9-291, floor 9, angel building, Chuangye coffee block, No. 9, Gaoxin Second Road, high tech Zone, Xi'an City, Shaanxi Province Applicant after: Xi'an juetian Power Technology Co.,Ltd. Address before: 710072 No. 127 Youyi West Road, Shaanxi, Xi'an Applicant before: Northwestern Polytechnical University |
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