CN208252231U - A kind of double duct mixing exhaust fanjets of novel microminiature - Google Patents
A kind of double duct mixing exhaust fanjets of novel microminiature Download PDFInfo
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- CN208252231U CN208252231U CN201820645161.XU CN201820645161U CN208252231U CN 208252231 U CN208252231 U CN 208252231U CN 201820645161 U CN201820645161 U CN 201820645161U CN 208252231 U CN208252231 U CN 208252231U
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Abstract
The utility model relates to a kind of double duct mixing exhaust fanjets of novel microminiature, it is to be restructured by turbine jet engine as core engine increase power turbine and fan；It is made of gas generator component (1), provided with internal duct and external duct wheel chamber casing component (2), fan propeller component (3), power turbine and gas deflation assembly (4), reducer assemblies (5)；The utility model is to found a new route for the microminaturization of turbofan jet engine；The microminiature whirlpool that the utility model has been widened is by jet engine use scope.
Description
Technical field
The utility model relates to a kind of microminiature aero-engine, in particular to one kind that a kind of new approaches are founded is novel micro-
Small capacity double duct mixing exhaust fanjet.
Background technique
Make a general survey of the development history of modern age aircraft power plant, aircraft gas turbofan jet engine (hereinafter referred to as turbofan jet
Engine) appearance eventually led to the earth-shaking variation of aircraft performance, there is epoch-making significance, exist soon
It is born again on the basis of turbojet engine technology and gas turbine airscrew engine (abbreviation turbo oar engine), gas turbine
Duct-Burning Turbofan (abbreviation turbofan jet engine) and combustion gas turboshaft engine (abbreviation turboshaft engine) etc., with the day of technology
It is beneficial mature, gradually applied in each department of aviation field, such as the large aerospace engine of high thrust, it is widely used in the people now
On plane and military transportation airplane.
The working principle of turbojet and turbofan jet engine is compared as follows:
1) turbojet is to be started reaction-propelled turbojet using a kind of direct reaction whirlpool
Machine device, when velocity air is pressurized after air intake duct, fuel oil enters after combustion chambers burn expansion to be sprayed with the high high temperature gas flow of speed
And reaction thrust is directly generated, a part of air-flow scatters and disappears outward, causes working efficiency lower.
2) turbofan jet engine is a kind of efficient reaction propulsion device of culvert type；At the rear of turbojet
N grades of turbofans are further added by, a certain number of major diameter turbofans are driven by by-pass air duct housing unit, postposition turbofan jet is constituted and starts
Machine.When the work of turbofan jet engine, sucking air enters combustion chamber, and fuel oil is made to burn in a combustion chamber, forms high speed, height
Warm gas-powered power turbine drives the rotation of postposition fan by by-pass air duct shell combination, and sprays high speed, high-temperature fuel gas generation
Thrust, and blended with outer gas stream；The rotation of postposition fan, outer gas stream enter fan duct and generate thrust jointly, improve effect
Rate reduces oil consumption.
3) since turbojet oil consumption is larger, less economical, directly influenced aircraft cruising ability and
Use cost is multiplied using the thrust of the thrust ratio turbojet of the turbofan jet engine of identical fuel consumption.
Microminiature Aeroengine Products application field is extensive, demand is big, dog-eat-dog.Microminiature aero-engine is
The high-tech dynamical system for integrating modern microelectronic technology, control technology, material technology, manufacturing technology, with traditional whirlpool
Fan jet engine is compared, small, the light-weight, advantages of simple structure and simple with size.It is the technology for belonging to China in technology development
It is larger to solve difficulty for bottleneck.External some military powers, oneself is using the double duct turbofan jet engines of microminiature as guided weapon
Novel power source, be widely used in carrier-borne, airborne, the ground launch guided weapon in sea, land and sky, such as: sky penetrates antitank force
Device, airborne ground-attack weapon, patrols the weaponrys such as winged weapon, ammunition dispensing device, UAV at airborne Air To Ship weapon,
The mobility and remoteness of guided weapon are greatly improved, as the power device of the U.S. " battleax " cruise weapon has chosen to install small-sized whirlpool
Fan jet engine.
But it is small in size, light-weight due to the double duct turbofan jet engines of microminiature, it is micro- with traditional thinking research and development
Technical difficulty required for small capacity double duct turbofan jet engine is very big, and cost will also be significantly increased therewith, need in summary
Seek one kind novel design concept and technological means to research and develop small-sized turbofan jet engine.
Summary of the invention
The purpose of this utility model is:
1) one kind novel design concept and technological means need to be sought to research and develop small-sized turbofan jet engine；
2) the novel design concept and technological means Research idea sought are utilized.It is simple to found a kind of structure, low oil consumption,
It is at low cost, safeguard a kind of double duct mixing exhaust fanjets of easy novel microminiature.
Realizing the technical solution of the utility model aim is: with existing mature technology, selecting that a kind of structure is simple, performance
Well, the jet engine of microminiature turbine that environmental suitability is strong, maintainability is good is as microminaturization turbofan jet engine
Core engine and functional unit carry out local structural modification, interface improvement is assembled.It is characterized by: it is the whirlpool by restructuring
Wheel jet engine is made as gas generator；It by gas generator component 1, provided with internal duct and external duct wheel chamber casing component 2, push away
Power fan component 3, power turbine and gas deflation assembly 4, reducer assemblies 5 form；The gas injection of gas generator component 1 above-mentioned
The air inlet of loophole and power turbine and gas deflation assembly 4 is tightly connected.
The preceding turbojet 1 is substituted by the microminiature mixing exhaust fanjet restructured, and combustion gas is sent out
Raw 1 jet pipe of device assembly, which is restructured out, to be connect suitable for the power turbine guider 12 of power turbine 41 with required by gas deflation assembly 42
Mouthful, implement to be tightly connected.
The provided with internal duct and external duct wheel chamber casing component 2 is equipped with outer culvert casing 21, interior casing 22；Outer culvert casing 21 and interior casing
22 are connected by supporting plate and fan outlet guide vane 32, and outer culvert casing length is suitable with engine total length.
The fan propeller component 3 is equipped with fan leaf dish 31, fan outlet guide vane 32.
The power turbine and gas deflation assembly 4 are equipped with power turbine 41, exhaust casing 42.
The reducer assemblies 5 are equipped with gear reduction unit 51, input shaft 52 and output shaft 53.
The utility model has the effect of positive:
(1) the utility model is sought to a kind of novel design concept and technological means (with existing mature technology, choosing
A kind of structure is simple, functional, environmental suitability is strong, maintainability is good jet engine of microminiature turbine is selected as microminiature
Change the core engine and functional unit of turbofan jet engine, carries out local structural modification, interface improvement is assembled.) it is turbofan
A new route is founded in the microminaturization development and production of jet engine.Help is provided for the miniaturization of fanjet；
(2) the utility model expands jet engine of microminiature turbine use scope；
(3) the utility model founds a kind of development turbofan jet engine New methods in working；
(4) the turbofan jet engine oil consumption rate of the utility model is low.
(5) the turbofan jet engine infrared signature of the utility model is small, and high temperature shell is isolated from the outside, high-temperature fuel gas with
Outer culvert air-flow is discharged after being sufficiently mixed.
(6) the turbofan jet engine of the utility model inverts core engine by axial, solves traditional birotor turbofan
The problem of engine rotor support construction complexity.
(7) the utility model utilizes the pressurization of fan, improves prototype turbojet engine compression ratio, improves the thermal efficiency.
(8) the utility model reduces fan propeller revolving speed by retarder, so that fan is in ideal operation revolving speed, improves
Fan efficiency.
Detailed description of the invention
In order to make the content of the utility model be easier to be clearly understood, below according to specific embodiment and combine attached
Figure, is described in further detail the utility model, in which:
Fig. 1 is the schematic illustration of the push system of the utility model；
Fig. 2 is the structural schematic diagram of the utility model embodiment 1.
Specific embodiment
(embodiment 1)
See that Fig. 2, the utility model have gas generator component 1, provided with internal duct and external duct wheel chamber casing component 2, fan propeller group
Part 3, power turbine and gas deflation assembly 4 and reducer assemblies 5；The fan leaf dish 31 and retarder group of the fan propeller component 3
5 output shaft fixed connection of part；The input axis connection of power turbine and gas deflation assembly 4 and reducer assemblies 5.
Particular embodiments described above has carried out into one the purpose of this utility model, technical scheme and beneficial effects
Step is described in detail, it should be understood that the foregoing is merely specific embodiment of the utility model and oneself, be not limited to this
Utility model, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done should all wrap
Containing being within the protection scope of the utility model.
Claims (6)
1. a kind of double duct mixing exhaust fanjets of novel microminiature, it is characterised in that: it is the turbojet by restructuring
Formula engine is made as gas generator；It is by gas generator component (1), provided with internal duct and external duct wheel chamber casing component (2), thrust
Fan component (3), power turbine and gas deflation assembly (4), reducer assemblies (5) composition；The gas generator component (1) is set
Enter inside the inner housing of provided with internal duct and external duct wheel chamber casing component (2), gas generator component (1) rear end and power turbine and exhaust group
Part (4) connection, the input axis connection of power turbine and gas deflation assembly (4) and reducer assemblies (5), fan propeller component (3) peace
Output shaft loaded on reducer assemblies (5)；The combustion gas of gas generator component (1) passes through power turbine and gas deflation assembly (4)
Exhaust pipe spurted into after turning in by-pass air duct and with by-pass air duct Gas Mixing in Cross flow, jet direction is consistent with by-pass air duct airflow direction；
Constitute a kind of double duct mixing exhaust fanjets of novel microminiature.
2. a kind of double duct mixing exhaust fanjets of novel microminiature according to claim 1, it is characterised in that: institute
It states gas generator component (1) to be substituted by the miniature turbine jet engines restructured, it is sprayed by Micro Turbine Jet Engine (11), tail
Power turbine guider (12) composition of pipe restructuring.
3. a kind of double duct mixing exhaust fanjets of novel microminiature according to claim 1, it is characterised in that: institute
Provided with internal duct and external duct wheel chamber casing component (2) is stated equipped with outer culvert casing (21), interior casing (22)；Air-flow is divided into two strands after passing through fan,
One enters by-pass air duct, and another stock enters the air intlet of gas generator component (1) by interior casing medial gap, while cold
But gas generator component (1) shell.
4. the double duct mixing exhaust fanjets of novel microminiature according to claim 1, it is characterised in that: described to push away
Power fan component (3) is equipped with fan leaf dish (31), fan outlet guide vane (32).
5. the double duct mixing exhaust fanjets of novel microminiature according to claim 1, it is characterised in that: described dynamic
Power turbine and gas deflation assembly (4) are equipped with power turbine (41), exhaust casing (42), power turbine (41) and reducer assemblies (5)
Input axis connection.
6. the double duct mixing exhaust fanjets of novel microminiature according to claim 4, it is characterised in that: described to subtract
Fast device assembly (5) is equipped with gear reduction unit (51), input shaft (52) and output shaft (53), output shaft (53) and fan leaf dish (31)
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820645161.XU CN208252231U (en) | 2018-04-28 | 2018-04-28 | A kind of double duct mixing exhaust fanjets of novel microminiature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820645161.XU CN208252231U (en) | 2018-04-28 | 2018-04-28 | A kind of double duct mixing exhaust fanjets of novel microminiature |
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| Publication Number | Publication Date |
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| CN208252231U true CN208252231U (en) | 2018-12-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533418A (en) * | 2018-04-28 | 2018-09-14 | 上海啸风航空科技有限公司 | A kind of double duct mixing exhaust fanjets of novel microminiature |
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2018
- 2018-04-28 CN CN201820645161.XU patent/CN208252231U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533418A (en) * | 2018-04-28 | 2018-09-14 | 上海啸风航空科技有限公司 | A kind of double duct mixing exhaust fanjets of novel microminiature |
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