CN107013367A - Turbine base double combustion chamber's punching press combined cycle engine - Google Patents
Turbine base double combustion chamber's punching press combined cycle engine Download PDFInfo
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- CN107013367A CN107013367A CN201710086643.6A CN201710086643A CN107013367A CN 107013367 A CN107013367 A CN 107013367A CN 201710086643 A CN201710086643 A CN 201710086643A CN 107013367 A CN107013367 A CN 107013367A
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- type face
- combustion chamber
- runner
- adjustment type
- engine
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Classifications
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- 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
- 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
-
- 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
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
- F02C7/042—Air intakes for gas-turbine plants or jet-propulsion plants having variable geometry
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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
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
- F02C7/057—Control or regulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
- F02K1/06—Varying effective area of jet pipe or nozzle
- F02K1/15—Control or regulation
- F02K1/16—Control or regulation conjointly with another control
- F02K1/165—Control or regulation conjointly with another control with air intake control
Abstract
It is an object of the invention to overcome prior art not enough there is provided a kind of turbine base double combustion chamber punching press combined cycle engine, solving existing turbo ramjet engine can not be the problems such as compared with low mach relay.The present invention is improved first against double combustion chamber's punching engine, combustion chamber uses rectangle parallel configuration, and be improved for its air intake duct, the air intake duct uses two dimensional inlet configuration, and sub- combustion runner and super burn runner are divided into by support plate along flow direction, the sub- combustion passage is at least one, the super burn runner at least two and divide equally in Asia combustion runner both sides, by increasing contract section adjustment type face and expansion segment adjustment type face in each runner design, to control inlet throat size, the need for realizing each combustion chamber to different compression degree air, widen engine work range of Mach numbers, improve engine performance.
Description
Technical field
The invention belongs to Aero-Space technical field of engines, and in particular to turbine base double combustion chamber punching press combination circulation hair
Motivation.
Background technology
Near space hypersonic flight task, empty day aerial mission etc. are to possessing wide spatial domain, wide fast domain ability to work
High-performance novel power proposes urgent demand, and the rocket engine of technology maturation, turbogenerator and punching engine are each
It is advantageous, but all can not individually complete above-mentioned task., at present can be with above-mentioned three kinds of engine technologies to adapt to the mission requirements
Based on constitute new thermodynamic cycle scheme, so as to widen working range, then develop out turboram combination (TBCC, Turbo
Based Combined Cycle), the combined engine scheme such as TRIJET.
Above-mentioned TBCC, TRIJET combined engine still suffers from following defect：TBCC is by high speed turbine limitation of the technology, it is impossible to
Realize the fine relay with dual-mode scramjet.It is domestic in the recent period to propose to intend to build parallel connection TBCC schemes using active service turbine,
Intend solving the problems, such as relay by Rocket ejector pushing or water spray precooling etc., but can so increase system complexity and quality cost.
TRIJET is used by introducing injection punching engine, realizes pushing away between active service turbogenerator and dual-mode scramjet
Power is connected, but due to using triple channel structure, faces system complex, the problems such as architecture quality is big.
Double combustion chamber's punching engine is lower than Dual-mode Scramjet work Mach number lower limit, is Ma3.3 left
The right side, by adjustable air intake technology, its work Mach number lower limit can be opened up further down to Ma2.5 or so, therefore turbogenerator with
The assembled scheme of double combustion chamber's punching engine is more conducive to solve " thrust wide gap " problem, the group based on shelf turbogenerator
Close power scheme more feasible.But existing double combustion chamber's punching engine is axial symmetry configuration, using axialsymmetrical inlet, more
Suitable for axial symmetry layout, it is difficult to that air inlet system is arranged in parallel and shared with turbine channel in terms of runner and structure design
System, and prior art is using fixed geometry air intake duct, it is difficult to adapt to wider work range of Mach numbers.
The content of the invention
It is an object of the invention to overcome prior art not enough, there is provided a kind of turbine base double combustion chamber punching press combination circulation hair
Motivation, solving existing turbo ramjet engine can not be the problems such as compared with low mach relay.
The technical solution of the present invention：
Turbine base double combustion chamber's punching press combined cycle engine, including high-speed channel and slow channels, the high-speed channel
It is arranged in parallel with slow channels, and shares air intake duct and jet pipe, the high-speed channel includes double combustion chamber's punching engine, institute
Stating slow channels includes turbine core engine, and double combustion chamber's punching engine includes double combustion chamber's ram air duct, subsonic speed
Combustion chamber and supersonic speed combustion chamber, and the subsonic combustion room and supersonic speed combustion chamber use rectangle parallel configuration；
The ram air duct uses two dimensional inlet configuration, and is divided into sub- combustion runner and super burn stream by support plate along flow direction
Road, the sub- combustion runner is at least one and is connected with subsonic combustion room, the super burn runner at least two and respectively exists
Asia combustion runner both sides, the super burn runner connects supersonic speed combustion chamber respectively；
The sub- combustion is consistent with super burn flow passage structure：It is made up of fixed face, adjustable type face and connects hinge, wherein, institute
State fixed face including external pressure miniature face, contract segment type face, venturi type face, expansion segment type face, lip type face and with burning
Room connecting-type face；The adjustable type face includes contract section adjustment type face and expansion segment adjustment type face, the contract section regulation
The one end in type face and expansion segment adjustment type face is individually fixed in contract section starting point and expansion segment endpoint, and the other end is respectively activity
End, the connects hinge includes hinge a and b, and the hinge a and b is located at contract section starting point and expansion segment endpoint, and institute respectively
Stating contract section adjustment type face and expansion segment adjustment type face can be revolved respectively around the hinge a and b by the design anglec of rotation
Turn.
Further, during rotation regulation, the activity in the contract section adjustment type face and expansion segment adjustment type face
The vertical range apart from lip type face is held to remain equal.
Further, after the contract section adjustment type face and expansion segment adjustment type face rotate, the contract section regulation
Type face, contract segment type face, venturi type face, expansion segment type face and expansion segment adjustment type face surround a cavity, the shape in cavity
Into pneumatic venturi type face of the vortex as runner, the corresponding venturi in pneumatic venturi type face is highly defined as after the rotation of adjustable type face
The venturi height H of runnerth, obtained by formula (1)：
Wherein, HthFor runner venturi height, H after the rotation of adjustable type facecHeight is captured for air intake duct runner, q (Ma) is stream
Flow function, Ma0And MathRespectively free stream Mach number and air intake duct runner venturi Mach number,For discharge coefficient, σthFor runner larynx
Road total pressure recovery coefficient.
Further, the anglec of rotation includes the anglec of rotation θ in contract section adjustment type face7With expansion segment adjustment type face
Anglec of rotation θ8, obtained by formula (2)；
Wherein, H7For contract section adjustment type face fixing end and lip type face vertical height, H8It is solid for expansion segment adjustment type face
Fixed end and lip type face vertical height, HthFor runner venturi height, L after the rotation of adjustable type face7For contract section adjustment type face two
Distance between end points, L8For distance, θ between the two-end-point of expansion segment adjustment type face2For contract segment type face two end point connecting line and venturi type face
Between angle (taking acute angle), θ4For the angle (taking acute angle) between expansion segment type face two end point connecting line and venturi type face.
The anglec of rotation θ7And θ8For 0 ° when, contract section adjustment type face and expansion segment adjustment type face respectively with it is interior
Shrink segment type face and the laminating of expansion segment type face；
The anglec of rotation θ7And θ8During for maximum, the contract section adjustment type face and expansion segment adjustment type face are complete
Close the runner.
Further, the slow channels and high-speed channel also share in air intake duct, the air intake duct to be provided with and are used to control
The turbine core engine and the air inlet flow distribution plate of double combustion chamber's punching engine charge air flow distribution.
Further, institute is controlled equipped with hinge c, the hinge c in the high-speed channel and the slow channels intersection
State air inlet flow distribution plate to rotate between the slow channels and high-speed channel, rotation angle range is can completely close high-speed channel
Or the principles of slow channels is determined.
Further, being provided with the slow channels and high-speed channel also common nozzle, the jet pipe is used to control institute
State the exhaust controllable register of turbogenerator and double combustion chamber's punching engine gas discharge.
Further, the slow channels end is equipped with hinge d, the hinge adjacent to a line position of air stream outlet
The chain d controls exhaust controllable register rotates between the slow channels and high-speed channel.
Further, the flow distribution plate and the exhaust controllable register coordinative role, institute is closed in the air inlet flow distribution plate
While stating turbine core engine, the exhaust controllable register goes to the closing slow channels side.
Further, the turbine core engine can be turbogenerator or series connection TBCC engines.
Further, the runner fixation quasi spline is as follows：Set double combustion chamber's ram air duct work Mach number model
Enclose for Mamin~Mamax, the runner fixed face is according to MamaxThe requirement of the performance indications such as discharge coefficient, total pressure recovery and
MaminStarting performance Demand Design and obtain, this technology being known in the art.
Further, when free stream Mach number is more than MaminWhen, according to the regulation of engine performance demand and runner design
Rule, the hinge control adjustable type face rotation regulation, until free stream Mach number is Mamax。
The characteristics of present invention is relative to prior art and advantage：
Turbine base double combustion chamber's punching press combined cycle engine that the present invention is provided, first to double combustion chamber's punching engine
It is improved, including there is provided the nonaxisymmetrical double combustions of one kind for the change of chamber structure and the change of combustion chamber charge runner
Burn room engine and matched runner configuration, and then realize turbogenerator and double combustion chamber's punching engine very
The characteristics of good integration, fast domain wide using double combustion chamber's punching engine, and further widen work range of Mach numbers, can compared with
Steady operation and with high thrust performance under the conditions of low mach, realizes itself and the steady relay of turbogenerator.
To sum up：
The 1st, a kind of nonaxisymmetrical double combustion chamber's punching engine is provided, by the way of two dimensional inlet runner, solution
The air inlet problem of Jue Liao double combustion chambers punching engine non-axis symmetry configuration, and can preferably be applied to parallel turbine base combination hair
Motivation scheme.
2nd, the regulation measure being combined using geometry regulation and pneumatic regulation is preferably resolved double combustion chamber's punching press and started
Machine width scope work problem, helps to widen engine work Mach number lower limit, while the regulation scheme, which has to mitigate, adjusts attached
Plus many advantages, such as quality, reduction high temperature dynamic sealing demand.
3rd, subsonic combustion room runner and supersonic speed combustion chamber runner are separately adjustable, and to entering subsonic combustion room
The compression degree of air-flow is more than the air-flow for entering supersonic speed combustion chamber, is conducive to matching the respective demand of combustion chamber, is easy to burning
Tissue, improves engine performance.
4th, intake valve deposit is realized using the existing air inlet adjustment function of combined engine, widens double combustion chamber's punching press and start
The work range of Mach numbers of machine, without extra increase governor motion.
5th, engine quality can effectively be mitigated by sharing inlet and exhaust system, and the average thrust-weight ratio of engine is higher.
Brief description of the drawings
Included accompanying drawing is used for providing being further understood from the embodiment of the present invention, which constitutes one of specification
Point, for illustrating embodiments of the invention, and the principle for the explaination present invention that comes together with word description.It should be evident that below
Accompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art, is not paying creation
Property work on the premise of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 illustrates for the cross-section structure of punching press combined cycle engine in turbine base double combustion chamber provided in an embodiment of the present invention
Figure；
Fig. 2 is punching engine structural representation in double combustion chamber's provided in an embodiment of the present invention；
Fig. 3 is double combustion chamber's ram air duct runner schematic layout pattern in the embodiment of the present invention；
Fig. 4 is double combustion chamber's punching engine flow path adjustment scheme schematic diagram in the embodiment of the present invention；
Fig. 5 is double combustion chamber's punching engine flow path adjustment parameter declaration schematic diagram in the embodiment of the present invention；
Fig. 6 is inlet structure schematic diagram in the embodiment of the present invention；
Fig. 7 is jet pipe structural representation in the embodiment of the present invention.
In figure, 1, air intake duct；2nd, turbogenerator；3rd, double combustion chamber's punching engine；4th, jet pipe；5th, double combustion chamber is rushed
It is pressed into air flue；6th, subsonic combustion room；7th, supersonic speed combustion chamber；6' subsonic combustions room cavity；7', supersonic speed combustion chamber are recessed
Chamber；8th, air inlet flow distribution plate；9th, it is vented controllable register；A, super burn runner；B, sub- combustion runner；C, super burn runner；11st, external pressure miniature
Face；12nd, contract segment type face；13rd, venturi type face；14th, expansion segment type face；15th, lip type face；16th, with combustion chamber connecting-type face；
17th, contract section adjustment type face；18th, expansion segment adjustment type face；21st, hinge a；22nd, hinge b；23rd, hinge c；24th, hinge d；H7
For the fixing end of contract section adjustment type face 17 and the vertical height of lip type face 15；H8For the fixing end of expansion segment adjustment type face 18 and lip
The vertical height of shape of the mouth as one speaks face 15；HthThe venturi height adjusted for needed for；HcHeight is captured for air intake duct runner；θ2For contract section
Angle (taking acute angle) between the two end point connecting line of type face 12 and venturi type face 13；θ4For the two end point connecting line of expansion segment type face 14 and larynx
Angle (taking acute angle) between channel type face 13.
Embodiment
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.In the following description, for solution
Release and nonrestrictive purpose, elaborate detail, to help to be apparent from the present invention.However, to people in the art
It will be apparent that the present invention can also be put into practice in the other embodiments departing from these details for member.
Herein it should be noted that in order to avoid having obscured the present invention because of unnecessary details, only showing in the accompanying drawings
Gone out with according to the closely related device structure of the solution of the present invention and/or process step, and eliminate with relation of the present invention not
Big other details.
Embodiment 1
The present embodiment provides a kind of turbine base double combustion chamber punching press combined cycle engine.Fig. 1 shows its cross-section structure,
Its structure includes air intake duct 1, turbogenerator 2, double combustion chamber's punching engine 3 and jet pipe 4, wherein, in the He of air intake duct 1
Passage between jet pipe 4 where turbogenerator 2 constitutes slow channels, double burnings between air intake duct 1 and the jet pipe 4
Passage where room punching engine 3 constitutes high-speed channel.
Slow channels and high-speed channel are connected in parallel, and this parallel relationship can be in parallel up and down or left and right
Parallel connection, Fig. 1 shows a kind of parallel way of slow channels in upper, high-speed channel under.
Further, Fig. 2 shows the structural representation of double combustion chamber's punching engine, including double combustion chamber's punching press air inlet
Road 5, subsonic combustion room 6 and supersonic speed combustion chamber 7, and the subsonic combustion room 6 and supersonic speed combustion chamber 7 use rectangle simultaneously
Connection layout, Fig. 3 shows the concrete structure of above-mentioned double combustion chamber's ram air duct 5：
Double combustion chamber's ram air duct 5 uses two dimensional inlet configuration, and is divided into sub- combustion stream by support plate along flow direction
Road B and super burn runner A and C, the B runners are intermediate flow channel, and it connects subsonic combustion room, and A, C runner is distributed in B streams
Road both sides simultaneously connect supersonic speed combustion chamber respectively.
Further, arranged by engine blockization, above-mentioned runner layout can also be that AABAA, ABABC, ABBC etc. are more
Plant combining form.
It is preferred that, the postmedian of the subsonic combustion room 6 is provided with subsonic combustion room cavity 6', the ultrasonic quick burning
The porch for burning room 7 is provided with supersonic speed combustion chamber cavity 7'；
The subsonic combustion room cavity 6' is internally formed low speed recirculating zone, for stablizing flame, and the infrasound quick burning
Burn the Fuel-rich gas of the formation of room 6 and feed the low speed that the fuel oil of supersonic speed combustion chamber 7 is formed in supersonic speed combustion chamber cavity 7'
The second-time burning of recirculating zone inner tissue.
Any runner design of A, B, C is as follows, referring specifically to Fig. 4：
The runner is made up of fixed face, adjustable type face and connects hinge, wherein, the fixed face includes external compression
Type face 11, contract segment type face 12, venturi type face 13, expansion segment type face 14, lip type face 15 and with combustion chamber connecting-type face
16；The adjustable type face includes contract section adjustment type face 17 and expansion segment adjustment type face 18, the contract section adjustment type face
17 and expansion segment adjustment type face 18 one end be individually fixed in contract section starting point and expansion segment endpoint, the other end is respectively activity
End, the connects hinge includes hinge a21 and b22, and the hinge a21 and b22 is respectively positioned at contract section starting point and expansion segment
Segment endpoint, and contract section adjustment type face 17 and expansion segment adjustment type face 18 can press respectively around the hinge a21 and b22
The design anglec of rotation is rotated.
Further, the runner fixation quasi spline is as follows：Set double combustion chamber's ram air duct work Mach number model
Enclose for Mamin~Mamax, the runner fixed face is according to MamaxThe requirement of the performance indications such as discharge coefficient, total pressure recovery and
MaminStarting performance Demand Design and obtain, this technology being known in the art.
Further, when free stream Mach number is more than MaminWhen, according to engine performance demand and the tune of Design of Inlet
Save rule, the hinge control adjustable type face rotation regulation, until free stream Mach number is Mamax。
Pass through the above-mentioned course of work so that double combustion chamber's ramjet engine air inlet is in Mamin~MamaxIn the range of can
By efficient operation, the compressed air stream for meeting the requirements such as speed, pressure is provided for combustion chamber, it is ensured that engine is in Mamin~MamaxModel
Enclose interior equal energy normal work and produce thrust performance.
Further, during rotation regulation, the contract section adjustment type face 17 and expansion segment adjustment type face 18
Vertical range of the movable end apart from lip type face 15 remains equal.
Further, referring to Figure 4 and 5, after the contract section adjustment type face 17 and expansion segment adjustment type face 18 rotate, institute
State contract section adjustment type face 17, contract segment type face 12, venturi type face 13, expansion segment type face 14 and expansion segment adjustment type face 18
A cavity is surrounded, vortex is formed in cavity as the pneumatic venturi type face of runner, to reduce inlet throat area, increase
Air intake duct shrinkage ratio, and then increase compression to incoming air, the corresponding venturi in the pneumatic venturi type face is highly defined as adjustable
Runner venturi height H after the rotation of type faceth, obtained by formula (1)：
Wherein, HthFor runner venturi height, H after the rotation of adjustable type facecHeight is captured for air intake duct runner, q (Ma) is stream
Flow function, Ma0And MathRespectively free stream Mach number and runner venturi Mach number,For discharge coefficient, σthFor runner venturi stagnation pressure
Recovery coefficient.
Further, in low mach design conditions, such as Mamin, contract section adjustment type face 17 and expansion segment
Contract segment type face 12 and expansion segment type face 14 are close in adjustment type face 18 respectively, with the increase of free stream Mach number, then need root
According to parameters such as free stream Mach number, the required inlet throat Mach numbers of Flow coefficient of inlet and combustion chamber, by above-mentioned formula (1)
The inlet throat height of regulation needed for obtaining is calculated, then contract section adjustment type face 17 and expansion segment are converted to by geometrical relationship
The angle of rotation needed for adjustment type face 18, and free stream Mach number is bigger, contract section adjustment type face 17 and expansion segment adjustment type face
18 anglecs of rotation are bigger, formed after pneumatic venturi, inlet throat circulation area is smaller, to stronger to flow compression, for combustion
Burn room and the compressed air for meeting and requiring is provided, improved beneficial to stable burning and engine performance.In addition, increase can be passed through if necessary
Contract section adjustment type face 17 and the anglec of rotation in expansion segment adjustment type face 18, completely close runner.
The above-mentioned anglec of rotation includes the anglec of rotation θ in contract section adjustment type face 177With the rotation in expansion segment adjustment type face 18
Gyration θ8, obtained by formula (2)；
Wherein, H7For the fixing end of contract section adjustment type face 17 and the vertical height of lip type face 15, H8For expansion segment adjustment type
The fixing end of face 18 and the vertical height of lip type face 15, HthFor runner venturi height, L after the rotation of adjustable type face7Adjusted for contract section
Distance, L between the two-end-point of nodal pattern face 178For distance, θ between the two-end-point of expansion segment adjustment type face 82For the two-end-point of contract segment type face 12
Angle (taking acute angle) between line and venturi type face 13, θ4For between the two end point connecting line of expansion segment type face 14 and venturi type face 13
Angle (taking acute angle).
The anglec of rotation θ7And θ8For 0 ° when, contract section adjustment type face 17 and expansion segment adjustment type face 18 are distinguished
Fitted with contract segment type face 12 and expansion segment type face 14；
The anglec of rotation anglec of rotation θ7And θ8During for maximum, the contract section adjustment type face 17 and expansion segment are adjusted
Nodal pattern face 18 completely closes the runner, depending on the state is according to special duty demand.
Further, slow channels and high-speed channel also share in air intake duct 1, air intake duct 1 to be provided with and are used to control turbine to send out
Motivation 2 and the air inlet flow distribution plate 8 of the charge air flow of double combustion chamber's punching engine 3 distribution, shared air intake duct are conducive to reducing entirely
The quality and volume of engine.
As shown in fig. 6, being equipped with hinge c23, hinge c23 control air inlet flow distribution plates in high-speed channel and slow channels intersection
8 between double combustion chamber's punching engine 3 and turbogenerator 2 rotate, rotation angle range with can completely close at a high speed
The principles of passage or slow channels is determined.Shape, the size of air inlet flow distribution plate 8 are big according to high-speed channel or slow channels entrance
Small, shape is determined.
Further, 4 are provided with for controlling propeller for turboprop in slow channels and high-speed channel also common nozzle 4, jet pipe
Machine 2 and the exhaust controllable register 9 of the gas of double combustion chamber's punching engine 3 discharge.
As shown in fig. 7, slow channels end is equipped with hinge d24, hinge d24 adjacent to a line position of air stream outlet
Control exhaust controllable register 9 rotates between the slow channels and high-speed channel.
Further, air inlet flow distribution plate 8 and the exhaust coordinative role of controllable register 9, the turbine is closed in air inlet flow distribution plate 8
While engine 2, the exhaust controllable register 9 goes to the closing slow channels side.
Further, the initial position of air inlet flow distribution plate 8 is in the state for opening high-speed channel and slow channels simultaneously, this
When slow channels and high-speed channel open simultaneously, large quantity of air enters slow channels, and a small amount of air enters high-speed channel, so as to drop
The resistance of low high-speed channel near exit.Air inlet flow distribution plate 8 simultaneously can at the uniform velocity rotate upwards, downwards by pivot of hinge,
Final position, which is in, closes slow channels state.
Above-mentioned turbine base double combustion chamber punching press combined cycle engine control method includes：
When aircraft takes off from ground, the air inlet flow distribution plate is in the position for opening slow channels and high-speed channel simultaneously
Put, air respectively enters slow channels and high-speed channel after being compressed through air intake duct, determine to distribute to by the position of air inlet flow distribution plate
The air mass flow of slow channels and high-speed channel, the turbogenerator startup work, high-speed channel keeps open position, reduction
Air intake duct and aircraft afterbody resistance, exhaust controllable register are located in jet pipe centre position, each runner of ram air duct
Contract section adjustment type face and expansion segment adjustment type face respectively with contract segment type face and expanding segment type face and fitting；
When flight Mach number reaches the first Mach number, air inlet flow distribution plate is moved up, and closes slow channels, the sub- combustion
Contract segment type face and expansion segment are close in the contract section adjustment type face of runner and super burn runner and expansion segment adjustment type face respectively
Type face, subsonic combustion room and supersonic speed combustion chamber start igniting, maintain gross thrust to meet aircraft demand, the infrasound quick burning
It is sub- combustion mode to burn room and supersonic speed combustion chamber；When air inlet flow distribution plate goes to the position of closing slow channels, turbogenerator
It is stopped, exhaust controllable register is rotated upwardly into the outlet of closing slow channels, mode relay is completed；
When flight Mach number reaches the second Mach number, the contract section adjustment type face of sub- the combustion runner and super burn runner and
Expansion segment adjustment type face proceeds by rotation, with the increase of flight Mach number, the interior receipts of the sub- combustion runner of control and super burn runner
Contracting section adjustment type face and the rotation of expansion segment adjustment type face so that the subsonic combustion room and supersonic speed combustion chamber are in sub- combustion
Mode；
When flight Mach number reaches the 3rd Mach number, the contract section adjustment type face of super burn runner and expansion segment adjustment type face
Stop the rotation regulation, with the increase of flight Mach number, supersonic speed combustion chamber is gradually changed from Asia combustion mode to super burn mode；
When flight Mach number reaches the 4th Mach number, supersonic speed combustion chamber is in super burn mode, completes mode transformation, with
The increase of flight Mach number, the contract section adjustment type face of super burn runner and expansion segment adjustment type face still stop, and regulation is not rotated；
When flight Mach number reaches the 5th Mach number, the contract section adjustment type face of super burn runner and expansion segment adjustment type face
Start rotation regulation, with the increase of flight Mach number so that the supersonic speed combustion chamber is in super burn mode all the time；
When flight Mach number reaches the 6th Mach number, this is engine maximum functional Mach number, and runner is fired and super in the Asia
The contract section adjustment type face and expansion segment adjustment type face for firing runner are stopped the rotation regulation, and shown subsonic combustion room is located all the time
Mode is fired in Asia, supersonic speed combustion chamber is in super burn mode all the time；
Between second Mach number and the 6th Mach number, the contract section adjustment type face of the sub- combustion runner of control and expansion segment
Adjustment type face rotates so that the subsonic combustion room is all the time in sub- combustion mode.
It is described so that the subsonic combustion room and supersonic speed combustion chamber refer to so that the Asia in sub- combustion mode all the time
Runner and the corresponding postrotational venturi Mach number of super burn runner is fired to be in 1.2~1.5 scopes all the time；
It is described so that the supersonic speed combustion chamber refers to all the time in super burn mode so that the corresponding rotation of the super burn runner
Venturi Mach number after turning is in 9/20~11/20 scope of flight Mach number all the time；
The first Mach 2 ship Mamin；It is also relay Mach number for punching engine start-up operation Mach number, its correspondence
Runner venturi Mach 2 ship Ma-th1；
The second Mach 2 ship Ma-2, its correspondence venturi Mach number Ma-th2, the Ma-th2 are more than threshold value MaΔ1, institute
State MaΔ1 preferred scope is 1.2~1.5；
The 3rd Mach 2 ship Ma-3, the 4th Mach 2 ship Ma-4, Ma-3 and Ma-4 and between realize supersonic speed
Combustion chamber is from Asia combustion transformation of the mode to super burn mode, and the 3rd Mach number is according to its corresponding venturi Mach number Ma-
Th3, the 4th Mach number Ma-4 and its correspondence venturi Mach number Ma-th4 are determined；Specifically, according to the 4th Mach number Ma-4 and
Venturi Mach number Ma-th4 can draw the anglec of rotation by formula (1) and (2), and Ma- can be drawn by the anglec of rotation and Ma-th3
3；
The 4th Mach number Ma-4 preferred scopes are 5.5-6, and its corresponding venturi Mach number Ma-th4 is 9/20~11/
20Ma-4；
The 5th Mach 2 ship Ma-5, its correspondence venturi Mach number Ma-th5, the Ma-th5 are more than threshold value MaΔ2, institute
State MaΔ2 be 11/20Ma-5；
The 6th Mach 2 ship Mamax, punching engine maximum functional Mach number.
Further, in the above method, when aircraft takes off from ground, air inlet flow distribution plate and exhaust controllable register are in and closed
High-speed channel position is closed, when flight Mach number reaches the first Mach number, air inlet shunting is moved up, and closes slow channels；
Further, task terminates, during downslide that aircraft is unpowered, and subsonic combustion room and supersonic speed combustion chamber stop work
Make, when flight Mach number drops to the first Mach number, air inlet flow distribution plate and exhaust controllable register are rotated down, and are reopened low
Fast passage, turbine engine ignition is that aircraft low cruise and horizontal landing provide power；
Further, in the above method, slow channels also can be not fully closed, retains suitable air mass flow to drive whirlpool
Wheel is generated electricity, and electric energy is provided for aircraft, to meet or partly meet aircraft need for electricity.
The design principle of the present invention is：
It is arranged in parallel in view of combined engine with double combustion chamber's punching engine and turbogenerator, shares intake and exhaust system
System, while non-axis symmetry structure need to need to be used with lifting body or Waverider aircraft integrated design, double combustion chamber's punching engine
Type, therefore for nonaxisymmetrical double combustion chamber's configuration, the present invention separately designs corresponding air inlet runner, and enters for each runner
Row design, increase contract section adjustment type face and expansion segment adjustment type face, and control it to rotate by hinge, in the process of rotation
In, contract section adjustment type face, contract segment type face, venturi type face, expansion segment type face and expansion segment adjustment type face can surround one
Individual cavity, forms vortex using as the pneumatic venturi type face of air inlet runner in cavity, by rationally design contract segment type face,
The length in segment type face and venturi type face is expanded, and causes that contract section adjustment type face is consistent with contract segment type face respectively, is expanded
Section adjustment type face is opened consistent with expansion segment type face length, so that contract section adjustment type face movable end and expansion segment adjustment type
Distance of the face with movable end along flow direction is less than the characteristic dimension of vortex, and the characteristic dimension is calculated by CFD and obtained, and then recessed
Intracavitary forms stable vortex；In addition, according to the size of the anglec of rotation, different pneumatic venturi type faces will be obtained, and then pass through
This mode reduces inlet throat area, increases air intake duct shrinkage ratio, that is, increases the compression to incoming air, air intake duct larynx
Road circulation area is smaller, to flow, compression is stronger, is provided for combustion chamber and meets desired compressed air, beneficial to stable burning
And engine performance is improved.Pass through above-mentioned regulation so that air intake duct provides larger compression to the air-flow for entering subsonic combustion room,
After a series of wave systems with subsonic speed enter subsonic combustion room organize burn, to enter supersonic speed combustion chamber air-flow provide compared with
Small compression, air-flow realizes that wide scope bimodal is burnt with supersonic speed into supersonic speed combustion chamber, and engine work horse is widened with this
Conspicuous several scopes, raising engine performance.
Described as described above for a kind of embodiment and/or the feature that shows can be in same or similar mode at one or more
Used in a number of other embodiments, and/or the feature in other embodiments is combined or substitutes with the feature in other embodiments
Use.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when being used herein, but simultaneously
It is not excluded for one or more further features, one integral piece, step, component or the presence of its combination or additional.
Combined engine more than of the invention is realized by combination of hardware software.The present invention relates to such computer-readable journey
Sequence, when the program is performed by logical block, can make the logical block realize devices described above or component parts, or
The logical block is set to realize various methods or step described above.The invention further relates to storage Jie for storing procedure above
Matter, such as hard disk, disk, CD, DVD, flash memory.
The many features and advantage of these embodiments are clear according to the detailed description, therefore appended claims are intended to
Cover all these feature and advantage fallen into its true spirit and scope of these embodiments.Further, since this area
Technical staff is readily apparent that many modifications and changes, therefore is not meant to embodiments of the invention being limited to illustrated and description essence
Really structurally and operationally, but all suitable modifications and the equivalent fallen into the range of it can be covered.
Unspecified part of the present invention is known to the skilled person technology.
Claims (9)
1. turbine base double combustion chamber's punching press combined cycle engine, it is characterised in that described including high-speed channel and slow channels
Slow channels and high-speed channel are arranged in parallel, and share air intake duct and jet pipe, and the slow channels include turbine core engine, institute
Stating high-speed channel includes double combustion chamber's punching engine；
Double combustion chamber's punching engine includes double combustion chamber's ram air duct, subsonic combustion room and supersonic speed combustion chamber,
And the subsonic combustion room and supersonic speed combustion chamber use rectangle parallel configuration；
The ram air duct uses two dimensional inlet configuration, by being divided into sub- combustion runner and super burn runner by support plate along flow direction,
The super burn runner at least two and divide equally in Asia combustion runner both sides；
The sub- combustion is consistent with super burn flow passage structure, is made up of fixed face, adjustable type face and connects hinge, wherein, it is described solid
Sizing face includes external pressure miniature face, contract segment type face, venturi type face, expansion segment type face, lip type face and connected with combustion chamber
Direct type face；The adjustable type face includes contract section adjustment type face and expansion segment adjustment type face, the contract section adjustment type face
Contract section starting point and expansion segment endpoint are individually fixed in the one end in expansion segment adjustment type face, the other end is respectively movable end,
The connects hinge includes hinge a and b, and the hinge a and b is located at contract section starting point and expansion segment endpoint respectively, and described
Contract section adjustment type face and expansion segment adjustment type face can be rotated respectively around the hinge a and b by the design anglec of rotation.
2. punching press combined cycle engine in turbine base double combustion chamber according to claim 1, it is characterised in that the interior receipts
Behind contracting section adjustment type face and the rotation of expansion segment adjustment type face, the contract section adjustment type face, contract segment type face, venturi type
Face, expansion segment type face and expansion segment adjustment type face surround a cavity, and vortex is formed in cavity as the pneumatic venturi of runner
Type face, the corresponding venturi in the pneumatic venturi type face is highly defined as the venturi height H of runner after the rotation of adjustable type faceth, pass through public affairs
Formula (1) is obtained：
Wherein, HthFor runner venturi height, H after the rotation of adjustable type facecHeight is captured for air intake duct runner, q (Ma) is flow letter
Number, Ma0And MathRespectively free stream Mach number and air intake duct runner venturi Mach number,For discharge coefficient, σthIt is total for runner venturi
Press recovery coefficient.
3. punching press combined cycle engine in turbine base double combustion chamber according to claim 2, it is characterised in that in the hinge
During chain rotation regulation, movable end the hanging down apart from lip type face in the contract section adjustment type face and expansion segment adjustment type face
Straight distance remains equal.
4. combined engine according to claim 3, it is characterised in that the anglec of rotation includes contract section adjustment type
The anglec of rotation θ in face7With the anglec of rotation θ in expansion segment adjustment type face8, obtained by formula (2)；
Wherein, H7For contract section adjustment type face fixing end and lip type face vertical height, H8For expansion segment adjustment type face fixing end
With lip type face vertical height, HthFor runner venturi height, L after the rotation of adjustable type face7For contract section adjustment type face two-end-point
Between distance, L8For distance, θ between the two-end-point of expansion segment adjustment type face2For between contract segment type face two end point connecting line and venturi type face
Sharp angle, θ4For the sharp angle between expansion segment type face two end point connecting line and venturi type face.
5. punching press combined cycle engine in turbine base double combustion chamber according to claim 4, it is characterised in that the rotation
Angle, θ7And θ8For 0 ° when, contract section adjustment type face and expansion segment adjustment type face respectively with contract segment type face and expansion
Fit in segment type face；The anglec of rotation θ7And θ8During for maximum, contract section adjustment type face and expansion segment adjustment type face with
The runner is closed to be defined.
6. turbine base double combustion chamber's punching press combined cycle engine according to claim 1-5, it is characterised in that the Asia
Combustion runner is B runners, and the super burn runner is respectively A, C runner, and its runner layout is selected from ABC, AABAA, ABABC, ABBC
Any of combining form, wherein A runners are identical with C runners.
7. punching press combined cycle engine in turbine base double combustion chamber according to claim 1, it is characterised in that：The air inlet
The air inlet shunting for being used to control the turbine core engine and double combustion chamber's punching engine charge air flow to distribute is provided with road
Plate.
8. punching press combined cycle engine in turbine base double combustion chamber according to claim 1, it is characterised in that：The jet pipe
It is interior to be provided with the exhaust controllable register for being used for controlling the turbine core engine and double combustion chamber's punching engine gas to discharge.
9. punching press combined cycle engine in turbine base double combustion chamber according to claim 1, it is characterised in that：The turbine
Core engine can be turbogenerator or series connection TBCC engines.
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| CN107448296A (en) * | 2017-08-07 | 2017-12-08 | 南京航空航天大学 | 07 grades of combined engine air intake ducts of Mach number of pneumatic type/mechanical combination regulation |
| CN107575309A (en) * | 2017-08-07 | 2018-01-12 | 南京航空航天大学 | A kind of high-performance dual rectangular channels loong shunt TBCC air intake ducts and design method |
| CN108194224A (en) * | 2017-12-31 | 2018-06-22 | 厦门大学 | It is embedded to the TBCC parallel connection jet pipe regulating mechanism design methods of diaphragm internal |
| CN109538377A (en) * | 2018-11-15 | 2019-03-29 | 厦门大学 | Share three power combination engine design methods of sub- combustion combustion chamber |
| CN109630271A (en) * | 2018-11-14 | 2019-04-16 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of Multifunctional navigation engine inlets and its operation method |
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| CN109670269A (en) * | 2019-01-07 | 2019-04-23 | 厦门大学 | A kind of three power combination engine design methods of Multi-channel parallel connection |
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| CN114932019B (en) * | 2022-07-25 | 2022-11-01 | 中国空气动力研究与发展中心低速空气动力研究所 | Method for controlling expansion angle of rectangular jet flow |
| CN116902210A (en) * | 2023-09-13 | 2023-10-20 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Energy supply method and device for aircraft onboard system |
| CN116902210B (en) * | 2023-09-13 | 2023-12-05 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Energy supply method and device for aircraft onboard system |
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