WO2023103398A1 - 一种压气做功装置及其双压式喷气发动机 - Google Patents

一种压气做功装置及其双压式喷气发动机 Download PDF

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Publication number
WO2023103398A1
WO2023103398A1 PCT/CN2022/107595 CN2022107595W WO2023103398A1 WO 2023103398 A1 WO2023103398 A1 WO 2023103398A1 CN 2022107595 W CN2022107595 W CN 2022107595W WO 2023103398 A1 WO2023103398 A1 WO 2023103398A1
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Prior art keywords
air
screw
chamber
compressor
screw compressor
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PCT/CN2022/107595
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English (en)
French (fr)
Inventor
李云峰
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李云峰
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Application filed by 李云峰 filed Critical 李云峰
Priority to US18/066,167 priority Critical patent/US11802507B2/en
Publication of WO2023103398A1 publication Critical patent/WO2023103398A1/zh

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Classifications

    • 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
    • F02K7/16—Composite ram-jet/turbo-jet engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Definitions

  • the utility model relates to the technical field of aero-engines, in particular to a compressed-air work device and a dual-pressure jet engine thereof.
  • the existing jet engine has complex manufacturing process, high manufacturing requirements, high cost, and high fuel consumption.
  • the patent document CN105484804A discloses a jet engine, which includes a blower, a gyro fan, a generator, a gyro generator and a fairing ;A gyro fan, a generator and a gyro generator are installed on the axis in the fan tube, and the fairing is fixed on the outside of the fan tube; the gyro fan is driven by external electric energy to rotate at a high speed, driving multiple generators to generate electricity, and multiple The electricity from one generator will be provided to the gyro fan, which will continue to drive multiple generators to generate electricity, so that a jet engine will be formed after repeated cycles, but the large number of turbofans will inevitably cause
  • the overall structure is relatively large, and the requirements for the manufacturing process are high.
  • Patent document CN101319641A discloses a runner jet engine, which is composed of a runner, a compressor, a hollow fixed shaft, a power output shaft, and a gas collection tile.
  • the side is connected to the support wheel, the compressor and the fan.
  • the hollow fixed shaft and the power output shaft are supported by the machine base.
  • the cavity inside the runner is the combustion chamber.
  • One end extends into the combustion chamber through the opening, and the hollow part of the hollow fixed shaft is a pipeline for conveying fuel.
  • the pipeline is equipped with a feeding screw or an oil injection pipe, and the outer periphery of the runner is equipped with a gas collection shoe for collecting exhaust gas. It can use oil as fuel. , and coal can be used as fuel.
  • the fuel is burned in the combustion chamber and driven by the reaction force of the injected gas, but the gas is easy to leak from the seam, which is not reliable and will inevitably affect the efficiency of the engine.
  • the purpose of this utility model is to provide a kind of compressed air work device and its dual-pressure jet engine, in order to solve the problems existing in the above-mentioned prior art, by using the way of turbofan and mechanical double supercharging, let the jet engine have a cylinder type engine Part of the advantages, thus achieving the purpose of saving manufacturing costs, simplifying the structure, effectively reducing fuel consumption, and improving the voyage.
  • the utility model provides the following scheme:
  • the utility model provides a compressed air work device, which includes an inner casing and a main shaft axially penetrated in the inner casing.
  • the main shaft is provided with an intake turbine and a screw compressor in sequence along the direction of gas flow.
  • the inner casing is located at the front end of the intake turbine and is provided with an internal channel for introducing air into the intake turbine, and a channel for connecting with the intake turbine and the screw compressor is provided between the intake turbine and the screw compressor.
  • the intake turbine cooperates with the first compressed air chamber for pressurized air, the first compressed air chamber communicates with the screw compressor, and the intake end of the screw compressor is provided with an oil injection port for injecting oil into it.
  • the air outlet end of the screw compressor is provided with a second compressor chamber that cooperates with the screw compressor to pressurize air, and the second compressor chamber communicates with a combustion chamber for injecting fuel, and the combustion chamber There is an ignition mechanism for detonating the fuel-air mixture.
  • the oil injection mechanism includes a screw chamber oil nozzle, the screw chamber oil nozzle faces the inlet of the screw compressor and sprays oil to the inside of the screw compressor, and the second compressor chamber
  • An oil collecting pipeline for collecting and recovering the oil flowing out of the screw compressor is arranged under the side.
  • the outlet of the screw compressor is provided with a one-way intake valve for only allowing air to enter the second compression chamber.
  • the second compressed air chamber is provided with a first exhaust port that communicates with the combustion chamber, and the first exhaust port is equipped with a first valve ejector rod, and the first valve ejector rod is pierced with The first return spring, and the side of the first valve push rod away from the first exhaust port is provided with a camshaft synchronously rotating with the main shaft, and the camshaft pushes the first valve push rod to block at the first exhaust port.
  • the second compressed air chamber includes two auxiliary second compressed air chambers that are both connected to the screw compressor, and the two auxiliary second compressed air chambers are symmetrically arranged on both sides of the main shaft, and the first row
  • the air port and the first valve ejector rod are set on one of the sub-second compression chambers, and the other sub-second compression chamber is provided with a second exhaust port symmetrical to the first exhaust port.
  • the second exhaust port is equipped with a second valve ejector rod and a second return spring pierced on the second valve ejector rod, and the second valve ejector rod is symmetrical to the first valve ejector rod Set on the other side of the camshaft.
  • the first valve lifter or the second valve lifter is provided with a sensor for monitoring its movement, and the sensor is electrically connected to the ignition mechanism.
  • the screw compressor includes a compressor casing, and a screw structure is arranged in the compressor casing;
  • the compressor housing is provided with a three-screw structure with a male and two females
  • the three-screw structure includes a male screw connected to the main shaft for coaxial rotation, two symmetrically arranged on both sides of the male screw and driven by it Connected female screw, the female screw is rotatably arranged on the casing of the compressor.
  • the utility model also provides a dual-pressure jet engine, which includes the above-mentioned air-compressing power device and a main casing sleeved on its outer peripheral side.
  • the internal passages are connected, and the outlet end is provided with a main thrust chamber connected with the combustion chamber.
  • the main shaft extends into the main thrust chamber and is coaxially sleeved with a high-pressure turbine facing the gas outlet of the combustion chamber.
  • the main housing An outer duct is provided between the compressed air work device, and the outer duct and the inner duct are connected in parallel to the inlet port, and an outer duct for pressurizing the outer duct is provided between the high-pressure turbine and the main pushing chamber.
  • Ducted air duct turbofan Ducted air duct turbofan.
  • the air passage turbofan includes two auxiliary air passage turbofans arranged side by side along the air flow direction, and the two auxiliary air passage turbofans are coaxially arranged with the high-pressure turbine.
  • the main pushing chamber is provided with a tail cone coaxially connected to the end of the main shaft, and the high-pressure turbine and the two secondary airway turbofans are coaxially connected to the tail cone.
  • the main shaft is provided with an intake turbine and a screw compressor in sequence along the gas flow direction.
  • the inner casing is located at the front end of the intake turbine and is provided with an internal channel for introducing air into the intake turbine.
  • the first compression chamber is connected with the screw compressors.
  • the fuel injection mechanism, the outlet end of the screw compressor is provided with a second compression chamber that cooperates with the screw compressor to pressurize air, the second compression chamber communicates with a combustion chamber for injecting fuel, and the combustion chamber is equipped with a
  • the ignition mechanism mixed with air in which the air first passes through the intake turbine, under the thrust of the intake turbine, the air is pressurized by the intake turbine to the first compression chamber for the first time, and the compressed air forms a first-stage compressed gas, Then enter the screw compressor for the second compression and enter the second compression chamber.
  • the air in the screw compressor is mixed with the oil sprayed out by the fuel injection mechanism.
  • the air compressed twice gathers in the combustion chamber, and then With the ignition of the fuel, a huge air pressure is formed, which effectively improves the power of the engine.
  • the oil nozzle in the screw chamber faces the entrance and sprays oil to the inside of the screw compressor to form a dual-purpose lubrication and combustion, which can not only lubricate the rotation of the screw in the screw compressor, but also fully integrate with the screw compressor.
  • the air in the machine is mixed, and an oil collection pipe is installed under the second compressor chamber to collect and recover the oil flowing out of the screw compressor, which can not only quickly absorb the fuel, but also avoid the influence of fuel concentration on the air in the second compressor chamber. recompression, and can effectively prevent fuel from accumulating in the second compression chamber, causing the risk of exhaust port blockage.
  • the outlet of the screw compressor is provided with a one-way intake valve that only allows air to enter the second compression chamber, so as to prevent the mixed fuel and air from flowing back into the screw compressor to affect the air compression effect.
  • the second compression chamber includes two sub-second compression chambers that are connected to the screw compressor.
  • the two second compression chambers are symmetrically arranged on both sides of the main shaft, and the first exhaust port and the first valve ejector rod are matched.
  • the other second compressed air chamber is provided with a second exhaust port symmetrical to the first exhaust port.
  • the second return spring on the second valve push rod, the second valve push rod is symmetrically arranged on the other side of the camshaft relative to the first valve push rod, passes between the first valve push rod and the first exhaust port, the second
  • the alternate cooperation between the valve ejector pin and the second exhaust port can ensure the continuous work of the combustion chamber during the engine working process, thereby ensuring the continuous operation of the entire engine, and avoiding the cooperation of separately setting the valve ejector pin and the exhaust port , there is a situation that the combustion chamber does not do work, which affects the working efficiency of the engine.
  • the two ends of the main casing are open, and the main inlet fan is provided on the inner side of the inlet end and communicated with the internal passage, and the main thrust chamber is provided at the outlet end, which is connected to the combustion chamber.
  • the main shaft extends to the main thrust chamber and is coaxially socketed
  • There is a high-pressure turbine facing the gas outlet of the combustion chamber.
  • the outer duct and the inner duct are connected in parallel to the inlet port.
  • Air channel turbofan for the air in the channel the air entering from the outer channel is pushed by the main intake fan to the air channel turbofan for the second compression and enters the main thrust chamber to burn together with the fuel sprayed from the nozzle in the main thrust chamber, and then Together with the gas ejected from the combustion chamber, it is injected from the rear opening of the main casing, so that the engine can achieve its purpose of operation, and the number of turbofans is greatly reduced. It is smaller than the traditional turbojet engine and has lower requirements for manufacturing processes.
  • Fig. 1 is a sectional view of the overall structure of the utility model
  • Fig. 2 is the structural diagram of the combustion chamber of the present utility model
  • Fig. 3 is a sectional view of the combustion chamber of the present utility model
  • the purpose of this utility model is to provide a kind of compressed air work device and its dual-pressure jet engine, in order to solve the problems existing in the above-mentioned prior art, by using the way of turbofan and mechanical double supercharging, let the jet engine have a cylinder type engine Part of the advantages, thus achieving the purpose of saving manufacturing costs, simplifying the structure, effectively reducing fuel consumption, and improving the voyage.
  • the utility model provides a compressed air work device, which includes an inner casing 18 and a main shaft 1 penetrated in the inner casing 18 along the axial direction.
  • Gas turbine 4 and screw compressor 6 can be used as turboprop or turboshaft engine output through local small modification, that is, it has the characteristics of multi-purpose.
  • the inner casing 18 is located at the front end of intake turbine 4. Lead into the connotation channel at the intake turbine 4, the first compression chamber 5 for cooperating with the intake turbine 4 to pressurize the air is arranged between the intake turbine 4 and the screw compressor 6, and the first compression chamber 5 is connected with the screw compressor.
  • the compressors 6 are connected, the inlet end of the screw compressor 6 is provided with an oil injection mechanism for spraying oil inward, and the outlet end of the screw compressor 6 is provided with a second compressor that cooperates with the screw compressor 6 to pressurize the air.
  • chamber 7, the second compressed air chamber 7 communicates with a combustion chamber 13 for injecting fuel, and the combustion chamber 13 is provided with an ignition mechanism for detonating the mixture of fuel and air, wherein the air first passes through the intake turbine 4, and the Under the action of thrust, the air is first pressurized by the intake turbine 4 into the first compression chamber 5, the compressed air forms a first-stage compressed gas, and then enters the screw compressor 6 for the second compression and enters the second compressed air At the same time, the air is mixed with the oil sprayed out by the fuel injection mechanism in the screw compressor 6, and the air compressed twice gathers in the combustion chamber 13.
  • the preferred turbine adopts a centrifugal turbine to increase the compression force of the air
  • the combustion chamber 13 is provided with a lubricating oil nozzle, and the lubricating oil is dual-purpose for fuel.
  • the combustion chamber 13 is superimposed on the outside of the second compression chamber 7, and has an integrated structure with the second compression chamber 7.
  • the fuel injection mechanism includes a screw chamber oil nozzle 14, and the screw chamber oil nozzle 14 faces the entrance of the screw compressor 6 and sprays oil to the inside of the screw compressor 6, so as to form a dual-purpose lubrication and combustion, which can
  • the rotation of the screw in the screw compressor 6 is lubricated, and it can be fully mixed with the air in the screw compressor 6.
  • the bottom of the second compressor chamber 7 is provided with a device for collecting and recovering the oil flowing out of the screw compressor 6.
  • the oil collecting pipeline can not only quickly absorb the fuel to prevent the fuel from being concentrated in the second compression chamber 7 and affect the recompression of the air, but also effectively prevent the fuel from accumulating in the second compression chamber 7 and causing the risk of blockage of the exhaust port .
  • the second part consists of a male, double female, three-screw hollow compressor, and high-pressure oil tanks, high-pressure oil pipes, batteries, computer boards, sensors and other accessories attached to the compressor casing are arranged in the middle section.
  • outlet of the screw compressor 6 is provided with a one-way intake valve that only allows air to enter the second compression chamber 7, so as to prevent the mixed fuel and air from flowing back into the screw compressor 6 and affect the air compression effect.
  • the second compressed air chamber 7 includes two sub-second compressed air chambers 7 that are both connected to the screw compressor 6.
  • the two secondary compressed air chambers 7 are symmetrically arranged on both sides of the main shaft 1.
  • the first exhaust port and the first The valve push rod 8 is set on one of the second compression chambers 7, and the other second compression chamber 7 is provided with a second exhaust port symmetrical to the first exhaust port, and the second exhaust port is equipped with a second exhaust port.
  • Two valve push rods, the second return spring 17 that is worn on the second valve push rod, the second valve push rod is symmetrically arranged on the other side of the camshaft 9 with respect to the first valve push rod 8, through the first valve push rod 8 and the first exhaust port, and between the second valve ejector and the second exhaust port are used alternately to ensure the continuous work of the combustion chamber 13 during the operation of the engine, thereby ensuring the continuous operation of the entire engine , to avoid separately setting the cooperation of the valve push rod and the exhaust port, there is a situation that the combustion chamber 13 does not perform work, which affects the working efficiency of the engine.
  • two pairs of second compressed air chambers 7 are arranged at intervals, and double starters 21, generators 20, position sensors and other devices are arranged on the main shaft 1 between the two pairs of second compressed air chambers.
  • Devices such as machine, generator 20, position sensor are covered in one and two pair of second compressed air chambers 7, the inner end of the flow guiding housing that combustor 13 is one.
  • first valve ejector rod 8 or the second valve ejector rod is equipped with a sensor for monitoring its action, and the sensor is electrically connected to the ignition mechanism, and the sensor sends a signal to the ignition coil when the ejector rod is completely dropped, and the combustion chamber 13
  • the fuel mixture gas is ignited by the sparker and begins to explode and burn to generate pulsed gas that is ejected from the combustion chamber 13 and pushes the high-pressure turbine 10 to perform work.
  • the screw compressor 6 includes a compressor casing, and a screw structure is arranged in the compressor casing; wherein, the screw structure is preferably a three-screw structure with one male and two females, and the three-screw structure includes a coaxial rotation connection with the main shaft 1
  • the male screw and two female screws symmetrically arranged on both sides of the male screw and connected to the drive.
  • the female screw is rotated and installed on the compressor casing.
  • the male screw drives the two female screws to rotate, thereby improving the compression capacity of the air;
  • a single-screw structure, a twin-screw structure or other multi-screw structures can also be selected.
  • a high-pressure oil tank, a high-pressure oil pipe, a storage battery, a computer board, and sensors are installed on the outside of the compressor casing.
  • the main body of the medium-pressure air power device of the present invention can be designed to cool down by air cooling or water cooling.
  • the utility model also provides a dual-pressure jet engine, comprising the above-mentioned air-compressing work device and the main casing 3 sleeved on its outer peripheral side, preferably the air-compressing work device is fixed with the main casing 3 by several brackets, and the two ends of the main casing 3 are open. , the inner side of its inlet end is provided with a main air intake fan 2 and communicates with the internal passage, and its outlet end is provided with a main pushing chamber 19 communicating with a combustion chamber 13.
  • the main shaft 1 extends into the main pushing chamber 19 and is coaxially sleeved with a positive
  • the combustion chamber 13 is provided with two semicircular nozzles 22 facing the high-pressure turbine 10, the gas in the combustion chamber 13 is ejected from the semicircular nozzle, and the main casing 3 and
  • An outer duct is arranged between the compressed air work devices, and the outer duct and the inner duct are connected to the inlet port side by side.
  • An air duct turbofan 11 for pressurizing the air in the outer duct is arranged between the high-pressure turbine 10 and the main pushing chamber 19.
  • the air that enters the channel is pushed by the main intake fan 2 to the turbofan 11 for the second compression, enters the main thrust chamber 19 and burns together with the fuel sprayed from the oil nozzle in the main thrust chamber 19, and then is sprayed out with the combustion chamber 13
  • the gas is injected from the tail opening of the main casing 3 together, so that the engine can achieve the purpose of operation, greatly reducing the number of turbofans, which is smaller than the traditional turbojet engine, and the requirements for the manufacturing process are reduced.
  • the air enters the main thrust chamber 19, mainly to provide the main oxygen-containing compressed gas for the afterburner, and the oil nozzle in the main thrust chamber 19 is an afterburner fuel injection nozzle, and is equipped with an afterburner fuel injection device.
  • the fuel injection quantity of the combustion chamber 13 can be accurately controlled according to the working conditions, and various fuel injection modes can be provided to effectively control fuel consumption.
  • the air guiding shell is exposed to the air flowing through the outer duct, and the air guiding shell is cooled by the air flowing through the outer duct.
  • combustion chamber 13 is precisely oxygenated, thereby improving the utilization rate of the oxygen that can be carried, and because the engine has high self-controllability, the probability of stalling and losing control in the form of a turboshaft in high altitude areas is reduced.
  • the air passage turbofan 11 includes two secondary air passage turbofans 11 arranged side by side along the air flow direction, and the two secondary air passage turbofans 11 are coaxially arranged with the high-pressure turbine 10 to form a double pressure for the air passing through the outer duct. compression.
  • the main thrust chamber 19 is provided with a tail cone 12 coaxially connected to the end of the main shaft 1 , and the high-pressure turbine 10 and the two secondary airway turbofans 11 are coaxially connected to the tail cone 12 .
  • a high-speed reduction gear can be arranged inside the tail cone 12 of the high-pressure turbofan to be connected to the main shaft 1, and the high-pressure turbofan tail cone 12 is integrated with the main shaft 1. Run in the opposite direction to offset part of the axial force, and allow the front end of the engine driven by the main shaft 1 to reduce the speed ratio with the high-pressure turbofan and increase the delivery torque.
  • the air enters the inner duct and the outer duct through the main intake fan 2, and is pressurized by the intake turbine 4 to the first compression chamber 5 for the first time in the inner duct.
  • the air pressure can reach 0.2-0.3MPA, and the air It is compressed into a first-stage compressed gas, and then enters the screw compressor 6 through the air inlet for the second compression and enters the second compression chamber 7 through the check valve.
  • the air pressure can reach 0.6-2.0MPA.
  • the sensor senses that the ejector rod is completely dropped and sends a signal to the ignition coil.
  • the combustion chamber 13 The fuel mixture gas is ignited by the sparker and begins to explode and combust to produce pulsed gas ejected from the combustion chamber 13, and push the high-pressure turbine 10 to do work, while the gas entering from the outer duct is pushed by the main fan to the double secondary air passage turbofan 11 The place is compressed for the second time, and enters the main thrust chamber 19 to burn together with the fuel injected by the afterburner nozzle, and is injected from the tail together with the gas ejected from the combustion chamber 13, so that the engine can achieve the purpose of running.
  • the core of this utility model is to provide a device that compresses air through a screw compressor to a combustion chamber with a spark plug and an injector mechanism for combustion, and uses the expanded gas to push the tail turbine to do work.
  • a screw compressor with a reduction mechanism, an air compression combustor, and a high-pressure turbine are combined to form an internal combustion engine, which is also suitable for applications such as turboshafts and turbofans.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Supercharger (AREA)

Abstract

一种压气做功装置，包括内机壳（18）及沿轴向穿设在内机壳（18）中的主轴（1），主轴（1）上沿气体流动方向依次设有进气涡轮（4）和螺杆式压气机（6），通过局部小改造可作为涡桨或者涡轴发动机输出，即其有多用性的特点，内机壳（18）位于进气涡轮（4）前端的位置处设有用于将空气导入进气涡轮（4）处的内涵道，进气涡轮（4）和螺杆式压气机（6）之间设有用于与进气涡轮（4）配合加压空气的第一压气室（5），第一压气室（5）与螺杆式压气机（6）相连通，螺杆式压气机（6）的进气端设有朝其内喷油的喷油机构，螺杆式压气机（6）的出气端设有与螺杆式压气机（6）配合加压空气的第二压气室（7），第二压气室（7）连通有用于喷入燃油的燃烧室（13），燃烧室（13）内设有用于引爆燃油与空气混合物的点火机构

Description

一种压气做功装置及其双压式喷气发动机 技术领域
本实用新型涉及航空发动机技术领域，特别是涉及一种压气做功装置及其双压式喷气发动机。
背景技术
现有的喷气式发动机制造工艺复杂、制造要求高、造价昂贵、且油耗高，专利文件CN105484804A公开了一种喷气式发动机，包括风筒，陀螺式风机，发电机，陀螺式发电机和整流罩；在风筒内的轴线上安装有陀螺式风机，发电机和陀螺式发电机，整流罩固装在风筒的外部；通过外部电能驱动陀螺式风机高速旋转，带动多台发电机发电，多台发电机发出的电又会提供给陀螺式风机使用，继续带动多台发电机发电，这样周而复始不停地循环，就形成一台喷气式发动机，但是其涡扇数量多，不可避免的会造成整体结构较大，对制造工艺的要求高。专利文件CN101319641A公开了转轮喷气式发动机，由转轮，压气机，空心定轴，动力输出轴，集气瓦等组成，空心的圆盘状体转轮一侧固定有动力输出轴，另一侧连接支撑轮、压气机及风扇，空心定轴及动力输出轴均由机座支撑，转轮内的空腔为燃烧室，转轮边缘有若干个与燃烧室相通的喷气管，空心定轴一端通过开口伸入燃烧室，空心定轴的中空部分为输送燃料的管道，管道中设有送料螺杆或喷油管，转轮外周设有收集废气的集气瓦，它既可以以油作为燃料，又可以以煤作为燃料，燃料在燃烧室内燃烧，依靠喷射气体的反作用力推动，但是其气体容易从接缝中漏出，并不可靠，不可避免的会影响发动机的效率。
发明内容
本实用新型的目的是提供一种压气做功装置及其双压式喷气发动机，以解决上述现有技术存在的问题，通过使用涡扇和机械双增压的方式，让喷气发动机拥有了汽缸式发动机的部分优点，从而达到了节约制造成本、简化结构，并有效减少油耗、提升航程的目的。
为实现上述目的，本实用新型提供了如下方案：
本实用新型提供一种压气做功装置，包括内机壳及沿轴向穿设在所述内机壳中的主轴，所述主轴上沿气体流动方向依次设有进气涡轮和螺杆式压气机，所述内机壳位于所述进气涡轮前端的位置处设有用于将空气导入所述进气涡轮处的内涵道，所述进气涡轮和所述螺杆式压气机之间设有用于与所述进气涡轮配合加压空气的第一压气室，所述第一压气室与所述螺杆式压气机相连通，所述螺杆式压气机的进气端设有朝其内喷油的喷油机构，所述螺杆式压气机的出气端设有与所述螺杆式压气机配合加压空气的第二压气室，所述第二压气室连通有用于喷入燃油的燃烧室，所述燃烧室内设有用于引爆燃油与空气混合物的点火机构。
优选的，所述喷油机构包括螺杆室喷油嘴，所述螺杆室喷油嘴朝向所述螺杆式压气机的入口处并对所述螺杆式压气机内部喷油，所述第二压气室内侧下方设置有用于将所述螺杆式压气机流出的油收集回收的集油管道。
优选的，所述螺杆式压气机的出口处设有仅供空气进入所述第二压气室的单向进气阀。
优选的，所述第二压气室设有与所述燃烧室相连通的第一排气口，所述第一排气口配套有第一气门顶杆，所述第一气门顶杆穿设有第一复位弹簧，且所述第一气门顶杆远离所述第一排气口的一侧设有与所述主轴同步转动的凸轮轴，所述凸轮轴推动所述第一气门顶杆封堵在所述第一排气口处。
优选的，所述第二压气室包括两均与所述螺杆式压气机相连通的副第二压气室，两所述副第二压气室对称设置在所述主轴两侧，所述第一排气口和所述第一气门顶杆配套设置在其中一所述副第二压气室上，另一所述副第二压气室上开设有与所述第一排气口对称的第二排气口，所述第二排气口配套有第二气门顶杆、穿设在所述第二气门顶杆上的第二复位弹簧，所述第二气门顶杆相对所述第一气门顶杆对称设置在所述凸轮轴的另一侧。
优选的，所述第一气门顶杆或所述第二气门顶杆配套有用于监测其动作的传感器，且所述传感器与所述点火机构电连接。
优选的，所述螺杆式压气机包括压气机机壳，所述压气机机壳内设有 螺杆结构；
或者，所述压气机机壳内设有一阳双阴的三螺杆结构，所述三螺杆结构包括与所述主轴同轴转动连接的阳螺杆、两对称设置在所述阳螺杆两侧且与其传动连接的阴螺杆，所述阴螺杆转动设置在所述压气机机壳上。
本实用新型还提供一种双压式喷气发动机，包括上述的压气做功装置及套设在其外周侧的主机壳，所述主机壳两端开口，其入口端内侧设有主进气扇并与内涵道相连通，其出口端设有与燃烧室相连通的主推室，所述主轴延伸至所述主推室内且同轴套接有正对所述燃烧室出气口的高压涡轮，所述主机壳和所述压气做功装置之间设有外涵道，所述外涵道与所述内涵道并列连通所述入口端，所述高压涡轮与所述主推室之间设有用于加压所述外涵道内空气的气道涡扇。
优选的，所述气道涡扇包括两沿空气流动方向并排设置的副气道涡扇，两所述副气道涡扇均与所述高压涡轮同轴设置。
优选的，所述主推室内设有与所述主轴端部同轴转动连接的尾椎，所述高压涡轮、两所述副气道涡扇均同轴连接在所述尾椎上。
本实用新型相对于现有技术取得了以下技术效果：
第一，主轴上沿气体流动方向依次设有进气涡轮和螺杆式压气机，内机壳位于进气涡轮前端的位置处设有用于将空气导入进气涡轮处的内涵道，进气涡轮和螺杆式压气机之间设有用于与进气涡轮配合加压空气的第一压气室，第一压气室与螺杆式压气机相连通，螺杆式压气机的进气端设有朝其内喷油的喷油机构，螺杆式压气机的出气端设有与螺杆式压气机配合加压空气的第二压气室，第二压气室连通有用于喷入燃油的燃烧室，燃烧室内设有用于引爆燃油与空气混合物的点火机构，其中空气首先经过进气涡轮，在进气涡轮的推力作用下，空气被进气涡轮第一次加压至第一压气室，被压缩的空气形成一级压缩气体，再进入螺杆式压气机内进行第二次压缩并进入第二压气室，同时空气在螺杆式压气机内与经喷油机构喷出的油混合，经过两次压缩的空气聚集在燃烧室内，随着燃油的点燃形成巨大的空气压，有效提高了发动机的动力。
第二，螺杆室喷油嘴朝向入口处并对螺杆式压气机内部喷油，以能够形成润滑燃烧两用，既能够对螺杆式压气机内螺杆的转动进行润滑，又能 够充分与螺杆式压气机内的空气进行混合，第二压气室内侧下方设置有用于将螺杆式压气机流出的油收集回收的集油管道，不仅能够快速对燃油吸走，避免燃油集中在第二压气室内影响对空气的再压缩，而且能够有效防止燃油聚集在第二压气室内，造成排气口堵塞的风险。
第三，螺杆式压气机的出口处设有仅供空气进入第二压气室的单向进气阀，避免混合后的燃油和空气逆流至螺杆式压气机内影响空气压缩效果。
第四，第二压气室包括两均与螺杆式压气机相连通的副第二压气室，两副第二压气室对称设置在主轴两侧，第一排气口和第一气门顶杆配套设置在其中一副第二压气室上，另一副第二压气室上开设有与第一排气口对称的第二排气口，第二排气口配套有第二气门顶杆、穿设在第二气门顶杆上的第二复位弹簧，第二气门顶杆相对第一气门顶杆对称设置在凸轮轴的另一侧，通过第一气门顶杆与第一排气口之间、第二气门顶杆与第二排气口之间的交替配合使用，在发动机工作过程中，能够保证燃烧室的持续做功，进而保证整个发动机的持续运行，避免单独设置气门顶杆和排气口的配合，存在燃烧室不做功的情况，影响发动机的工作效率。
第五，主机壳两端开口，其入口端内侧设有主进气扇并与内涵道相连通，其出口端设有与燃烧室相连通的主推室，主轴延伸至主推室内且同轴套接有正对燃烧室出气口的高压涡轮，主机壳和压气做功装置之间设有外涵道，外涵道与内涵道并列连通入口端，高压涡轮与主推室之间设有用于加压外涵道内空气的气道涡扇，从外涵道进入的空气通过主进气扇推动来到气道涡扇处进行第二次压缩并进入主推室与主推室内的油嘴喷出的燃油一起燃烧，再与燃烧室喷出的气体一起从主机壳尾部开口喷射，从而让发动机达到运转目的，大大减少了涡扇的数量，其比传统涡喷发动机体积更小巧，对制造工艺的要求有所降低。
附图说明
为了更清楚地说明本实用新型实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本实用新型整体结构剖面图；
图2为本实用新型燃烧室结构图；
图3为本实用新型燃烧室剖面图；
其中，1-主轴、2-主进气扇、3-主机壳、4-进气涡轮、5-第一压气室、6-螺杆式压气机、7-第二压气室、8-第一气门顶杆、9-凸轮轴、10-高压涡轮、11-气道涡扇、12-尾椎、13-燃烧室、14-螺杆室喷油嘴、15-火花塞、16-增氧管、17-复位弹簧、18-内机壳、19-主推室、20-发电机、21-双启动机、22-半圆形喷口。
具体实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。
本实用新型的目的是提供一种压气做功装置及其双压式喷气发动机，以解决上述现有技术存在的问题，通过使用涡扇和机械双增压的方式，让喷气发动机拥有了汽缸式发动机的部分优点，从而达到了节约制造成本、简化结构，并有效减少油耗、提升航程的目的。
为使本实用新型的上述目的、特征和优点能够更加明显易懂，下面结合附图和具体实施方式对本实用新型作进一步详细的说明。
请参考图1至图3，本实用新型提供一种压气做功装置，包括内机壳18及沿轴向穿设在内机壳18中的主轴1，主轴1上沿气体流动方向依次设有进气涡轮4和螺杆式压气机6，通过局部小改造可作为涡桨或者涡轴发动机输出，即其有多用性的特点，内机壳18位于进气涡轮4前端的位置处设有用于将空气导入进气涡轮4处的内涵道，进气涡轮4和螺杆式压气机6之间设有用于与进气涡轮4配合加压空气的第一压气室5，第一压气室5与螺杆式压气机6相连通，螺杆式压气机6的进气端设有朝其内喷油的喷油机构，螺杆式压气机6的出气端设有与螺杆式压气机6配合加压空气的第二压气室7，第二压气室7连通有用于喷入燃油的燃烧室13，燃烧室13内设有用于引爆燃油与空气混合物的点火机构，其中空气首先经 过进气涡轮4，在进气涡轮4的推力作用下，空气被进气涡轮4第一次加压至第一压气室5，被压缩的空气形成一级压缩气体，再进入螺杆式压气机6内进行第二次压缩并进入第二压气室7，同时空气在螺杆式压气机6内与经喷油机构喷出的油混合，经过两次压缩的空气聚集在燃烧室13内，随着燃油的点燃形成巨大的空气压，有效提高了发动机的动力。优选涡轮采用离心式涡轮，以提高对空气的压缩力，燃烧室13内设有润滑油喷嘴，润滑油为燃油两用。且优选的，为简化整体结构，燃烧室13叠加在第二压气室7外侧，与第二压气室7为一体式结构，其单个内部设置有一至两个直喷式燃油喷嘴、一至两个点火器或火花塞15、增氧管16、若干传感器等装置。
进一步的，喷油机构包括螺杆室喷油嘴14，螺杆室喷油嘴14朝向螺杆式压气机6的入口处并对螺杆式压气机6内部喷油，以能够形成润滑燃烧两用，既能够对螺杆式压气机6内螺杆的转动进行润滑，又能够充分与螺杆式压气机6内的空气进行混合，第二压气室7内侧下方设置有用于将螺杆式压气机6流出的油收集回收的集油管道，不仅能够快速将燃油吸走，避免燃油集中在第二压气室7内影响对空气的再压缩，而且能够有效防止燃油聚集在第二压气室7内，造成排气口堵塞的风险。第二部分由一阳双阴三螺杆中空式压气机、以及附着在压气机外壳上的高压油罐、高压油管、蓄电池、电脑板以及传感器等附属装置设置在中段。
进一步的，螺杆式压气机6的出口处设有仅供空气进入第二压气室7的单向进气阀，避免混合后的燃油和空气逆流至螺杆式压气机6内影响空气压缩效果。
进一步的，第二压气室7包括两均与螺杆式压气机6相连通的副第二压气室7，两副第二压气室7对称设置在主轴1两侧，第一排气口和第一气门顶杆8配套设置在其中一副第二压气室7上，另一副第二压气室7上开设有与第一排气口对称的第二排气口，第二排气口配套有第二气门顶杆、穿设在第二气门顶杆上的第二复位弹簧17，第二气门顶杆相对第一气门顶杆8对称设置在凸轮轴9的另一侧，通过第一气门顶杆8与第一排气口之间、第二气门顶杆与第二排气口之间的交替配合使用，在发动机工作过程中，能够保证燃烧室13的持续做功，进而保证整个发动机的持续 运行，避免单独设置气门顶杆和排气口的配合，存在燃烧室13不做功的情况，影响发动机的工作效率。
作为本实用新型优选的实施方式，两副第二压气室7间隔设置，位于两副第二压气室7间的主轴1上安置有双启动机21、发电机20、位置传感器等装置，双启动机、发电机20、位置传感器等装置被包覆在一与两副第二压气室7、燃烧室13一体的导流壳体内端。
进一步的，第一气门顶杆8或第二气门顶杆配套有用于监测其动作的传感器，且传感器与点火机构电连接，传感器感应到顶杆完全落下时对点火线圈发出信号，此时燃烧室13的燃油混合气体被火花器点火开始爆炸燃烧产生脉冲气体从燃烧室13喷出，并推动高压涡轮10进行做功。
其中，螺杆式压气机6包括压气机机壳，压气机机壳内设有螺杆结构；其中，螺杆结构优选为一阳双阴的三螺杆结构，三螺杆结构包括与主轴1同轴转动连接的阳螺杆、两对称设置在阳螺杆两侧且与其传动连接的阴螺杆，阴螺杆转动设置在压气机机壳上，在使用时通过阳螺杆带动两阴螺杆转动，进而提高对空气的压缩能力；或者为增大空气压缩能力，还可以选用单螺杆结构、双螺杆结构或者其它的多螺杆结构等。优选的，压气机机壳外侧设有高压油罐、高压油管、蓄电池、电脑板以及传感器等附属装置。
进一步地，根据不同应用场景，本实用新型中压气做功装置的主体部分可设计为通过风冷或者水冷的方式进行降温。
本实用新型还提供一种双压式喷气发动机，包括上述的压气做功装置及套设在其外周侧的主机壳3，优选压气做功装置由若干支架与主机壳3固定，主机壳3两端开口，其入口端内侧设有主进气扇2并与内涵道相连通，其出口端设有与燃烧室13相连通的主推室19，主轴1延伸至主推室19内且同轴套接有正对燃烧室13出气口的高压涡轮10，优选的，燃烧室13设有两正对高压涡轮10的半圆形喷口22，燃烧室13内的气体从半圆形喷口喷出，主机壳3和压气做功装置之间设有外涵道，外涵道与内涵道并列连通入口端，高压涡轮10与主推室19之间设有用于加压外涵道内空气的气道涡扇11，从外涵道进入的空气通过主进气扇2推动来到气道涡扇11处进行第二次压缩并进入主推室19与主推室19内的油嘴喷出的燃油一起燃烧，再与燃烧室13喷出的气体一起从主机壳3尾部开口喷射， 从而让发动机达到运转目的，大大减少了涡扇的数量，其比传统涡喷发动机体积更小巧，对制造工艺的要求有所降低，其中外涵道的空气进入主推室19，主要为加力装置提供主要含氧压缩气体，而且主推室19内的油嘴为加力喷油嘴，并配有加力喷油装置，在空气和燃烧室13内的气体进入主推室19后，进行喷油以燃爆，提高发动机的推力。优选的，该发动机运转时，可根据工况精确控制燃烧室13的喷油量，并提供多种喷油模式，有效控制燃油消耗。优选的，导流壳暴露在外涵道流经的空气中，并利用外涵道流经的空气对导流壳进行冷却。
且由于是采用可控直喷型供油与高压气体在不大的燃烧室13燃烧做功，其原理与汽车的直喷发动机相似，可明显节约燃油、提升经济性，在到达高海拔地区可对燃烧室13进行精确增氧，从而提高可携带氧气的利用率，且由于发动机自我可控性高，减小了在高海拔地区涡轴形式下失速失控的概率。
其中，气道涡扇11包括两沿空气流动方向并排设置的副气道涡扇11，两副气道涡扇11均与高压涡轮10同轴设置，以对经过外涵道的空气形成两重压缩。
优选的，主推室19内设有与主轴1端部同轴转动连接的尾椎12，高压涡轮10、两副气道涡扇11均同轴连接在尾椎12上。由于该发动机前端的螺杆式压气机6不善于超高速运转，因此在外部为高压涡扇的尾椎12内部可设置高速减速齿轮与主轴1相连，高压涡扇尾椎12一体装置与主轴1经行相反运行抵消部分轴向力，并让以主轴1带动的发动机前端部分降低与高压涡扇的速比并加大输送扭矩力。
具体的，首先空气经过主进气扇2进入内涵道、外涵道，在内涵道内被进气涡轮4第一次加压至第一压气室5，此时气压可达0.2-0.3MPA，空气被压缩为一级压缩气体，再通过进气口进入螺杆式压气机6内进行第二次压缩并通过单向阀进入第二压气室7，此时气压可达到0.6-2.0MPA，当凸轮轴9顶开气门顶杆的时候，第二压气室7的气体进入燃烧室13，高压油嘴开始喷油与高压气体混合，同时传感器感应到顶杆完全落下时对点火线圈发出信号，此时燃烧室13的燃油混合气体被火花器点火开始爆炸燃烧产生脉冲气体从燃烧室13喷出，并推动高压涡轮10进行做功，而从 外涵道进入的气体通过主风扇推动来到双副气道涡扇11处进行第二次压缩，并进入主推室19与加力喷油嘴喷出的燃油一起燃烧，与燃烧室13喷出的气体一起从尾部喷射，从而让发动机达到运转目的。
综上，本实用新型的核心是提供一种通过螺杆式压气机压缩空气至带有火花塞和喷油嘴机构的燃烧室进行燃烧，并用膨胀的气体推动尾部涡轮做功的装置，本实用新型通过带有减速机构的螺杆式压气机、空气压缩燃烧室和高压涡轮相结合组成内燃机，其还适用于涡轴、涡扇等应用场景。
根据实际需求而进行的适应性改变均在本实用新型的保护范围内。
需要说明的是，对于本领域技术人员而言，显然本实用新型不限于上述示范性实施例的细节，而且在不背离本实用新型的精神或基本特征的情况下，能够以其他的具体形式实现本实用新型。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本实用新型的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本实用新型内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。
本实用新型中应用了具体个例对本实用新型的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本实用新型的方法及其核心思想；同时，对于本领域的一般技术人员，依据本实用新型的思想，在具体实施方式及应用范围上均会有改变之处。综上所述，本说明书内容不应理解为对本实用新型的限制。

Claims (10)

  1. 一种压气做功装置，其特征在于，包括内机壳及沿轴向穿设在所述内机壳中的主轴，所述主轴上沿气体流动方向依次设有进气涡轮和螺杆式压气机，所述内机壳位于所述进气涡轮前端的位置处设有用于将空气导入所述进气涡轮处的内涵道，所述进气涡轮和所述螺杆式压气机之间设有用于与所述进气涡轮配合加压空气的第一压气室，所述第一压气室与所述螺杆式压气机相连通，所述螺杆式压气机的进气端设有朝其内喷油的喷油机构，所述螺杆式压气机的出气端设有与所述螺杆式压气机配合加压空气的第二压气室，所述第二压气室连通有用于喷入燃油的燃烧室，所述燃烧室内设有用于引爆燃油与空气混合物的点火机构。
  2. 根据权利要求1所述的压气做功装置，其特征在于，所述喷油机构包括螺杆室喷油嘴，所述螺杆室喷油嘴朝向所述螺杆式压气机的入口处并对所述螺杆式压气机内部喷油，所述第二压气室内侧下方设置有用于将所述螺杆式压气机流出的油收集回收的集油管道。
  3. 根据权利要求2所述的压气做功装置，其特征在于，所述螺杆式压气机的出口处设有仅供空气进入所述第二压气室的单向进气阀。
  4. 根据权利要求2或3所述的压气做功装置，其特征在于，所述第二压气室设有与所述燃烧室相连通的第一排气口，所述第一排气口配套有第一气门顶杆，所述第一气门顶杆穿设有第一复位弹簧，且所述第一气门顶杆远离所述第一排气口的一侧设有与所述主轴同步转动的凸轮轴，所述凸轮轴推动所述第一气门顶杆封堵在所述第一排气口处。
  5. 根据权利要求4所述的压气做功装置，其特征在于，所述第二压气室包括两均与所述螺杆式压气机相连通的副第二压气室，两所述副第二压气室对称设置在所述主轴两侧，所述第一排气口和所述第一气门顶杆配套设置在其中一所述副第二压气室上，另一所述副第二压气室上开设有与所述第一排气口对称的第二排气口，所述第二排气口配套有第二气门顶杆、穿设在所述第二气门顶杆上的第二复位弹簧，所述第二气门顶杆相对所述第一气门顶杆对称设置在所述凸轮轴的另一侧。
  6. 根据权利要求5所述的压气做功装置，其特征在于，所述第一气门顶杆或所述第二气门顶杆配套有用于监测其动作的传感器，且所述传感器 与所述点火机构电连接。
  7. 根据权利要求6所述的压气做功装置，其特征在于，所述螺杆式压气机包括压气机机壳，所述压气机机壳内设有螺杆结构；
    或者，所述压气机机壳内设有一阳双阴的三螺杆结构，所述三螺杆结构包括与所述主轴同轴转动连接的阳螺杆、两对称设置在所述阳螺杆两侧且与其传动连接的阴螺杆，所述阴螺杆转动设置在所述压气机机壳上。
  8. 一种双压式喷气发动机，其特征在于，包括如权利要求1-7任意一项所述的压气做功装置及套设在其外周侧的主机壳，所述主机壳两端开口，其入口端内侧设有主进气扇并与内涵道相连通，其出口端设有与燃烧室相连通的主推室，所述主轴延伸至所述主推室内且同轴套接有正对所述燃烧室出气口的高压涡轮，所述主机壳和所述压气做功装置之间设有外涵道，所述外涵道与所述内涵道并列连通所述入口端，所述高压涡轮与所述主推室之间设有用于加压所述外涵道内空气的气道涡扇。
  9. 根据权利要求8所述的双压式喷气发动机，其特征在于，所述气道涡扇包括两沿空气流动方向并排设置的副气道涡扇，两所述副气道涡扇均与所述高压涡轮同轴设置。
  10. 根据权利要求9所述的双压式喷气发动机，其特征在于，所述主推室内设有与所述主轴端部同轴转动连接的尾椎，所述高压涡轮、两所述副气道涡扇均同轴连接在所述尾椎上。
PCT/CN2022/107595 2021-12-06 2022-07-25 一种压气做功装置及其双压式喷气发动机 WO2023103398A1 (zh)

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