CN108869094A - Rotate detonation engine - Google Patents
Rotate detonation engine Download PDFInfo
- Publication number
- CN108869094A CN108869094A CN201810843562.0A CN201810843562A CN108869094A CN 108869094 A CN108869094 A CN 108869094A CN 201810843562 A CN201810843562 A CN 201810843562A CN 108869094 A CN108869094 A CN 108869094A
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- CN
- China
- Prior art keywords
- intension
- inner housing
- cylinder
- airflow channel
- rotation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- F02K3/00—Plants including a gas turbine driving a compressor or a ducted fan
- F02K3/02—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber
- F02K3/04—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type
- F02K3/06—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type with front fan
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
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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
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/14—Gas-turbine plants characterised by the use of combustion products as the working fluid characterised by the arrangement of the combustion chamber in the plant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/22—Fuel supply systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
- F23R3/04—Air inlet arrangements
- F23R3/10—Air inlet arrangements for primary air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
- F23R3/286—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply having fuel-air premixing devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/42—Continuous combustion chambers using liquid or gaseous fuel characterised by the arrangement or form of the flame tubes or combustion chambers
- F23R3/58—Cyclone or vortex type combustion chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/42—Continuous combustion chambers using liquid or gaseous fuel characterised by the arrangement or form of the flame tubes or combustion chambers
- F23R3/60—Support structures; Attaching or mounting means
Abstract
The present invention provides a kind of rotation detonation engines comprising：Outer culvert unit, intension unit, rotating unit, fuel supply unit and igniter.Rotation detonating combustion section is equivalent to the combustion chamber of conventional engines, and intension gas vent is equivalent to traditional combustion room outlet.Since entropy increasing is minimum using rotation detonating combustion technology, thus in the case where same combustion chamber temperature rise is horizontal for rotation detonating combustion section, to significantly improve the thermal efficiency of engine, reduce oil consumption rate.And, since the interior energy almost all of the detonating combustion product in rotation detonating combustion section is converted into the mechanical energy of the cylinder of rotating unit, fan propeller and compressor rotor, it rotate together at high speed to fan propeller, compressor rotor and cylinder, and then no setting is required turbine part.This mode compared with turbine part drives by the way of compressor rotation, greatly improves combustor exit temperature, significantly reduces engine quality, thus improve the thrust ratio of engine with conventional engines.
Description
Technical field
The present invention relates to technical field of engines more particularly to a kind of rotation detonation engines.
Background technique
The thrust ratio of aero-engine directly affects the flying quality and payload of aircraft, and improves the way of thrust ratio
Diameter, which mainly has, promotes overall performance and loss of weight.The loss of weight space of the aero-engine of traditional structure is extremely limited, and general use
Isobaric combustion mode, to limit the thermal efficiency of aero-engine and being obviously improved for fuel economy.Therefore, in burning side
Where formula and the formal innovation of engine structure are the hope of the thrust ratio and fuel economy that are obviously improved aero-engine.
Summary of the invention
In view of the problems in the background art, it the purpose of the present invention is to provide a kind of rotation detonation engine, adopts
With rotation knocking combustion mode and the interior mechanical energy that can be converted into rotating unit of detonating combustion product will be rotated, without logical
It crosses turbine part and drives compressor rotation, improve the thrust ratio of engine.
To achieve the goals above, the present invention provides a kind of rotation detonation engines comprising：Outer culvert unit, intension
Unit, rotating unit, fuel supply unit and igniter.
Outer culvert unit includes：Outer housing has outer culvert air intake and contains air outlet slit outside；And outer culvert support group
Part is fixedly installed in outer housing.
Intension unit is fixed on outer culvert unit and is axially located in the outer downstream for containing support component, including：Inner housing has
Intension air intake and intension gas vent；And intension support component, it is fixedly installed in inner housing.
Rotating unit includes：Cylinder is rotationally connected with outer culvert support component and intension support component；Fan propeller, it is fixed
In cylinder and it is axially located between outer culvert support component and inner housing；And compressor rotor, it is fixed on cylinder and along axial direction
Positioned at the downstream of fan propeller.
Fuel supply unit is fixedly installed on inner housing.Igniter is fixedly installed on inner housing.
Outside the inner housing of the outer outer housing for containing unit and outer culvert support component, the cylinder of rotating unit, intension unit is formed
Contain airflow channel, outer culvert airflow channel is connected to outer culvert air intake and contains air outlet slit outside, the fan propeller of rotating unit
In outer culvert airflow channel.
The inner housing and intension support component of intension unit, the cylinder of rotating unit form intension airflow channel, intension gas
Circulation road has boost section, distance piece and rotation detonating combustion section, and boost section is connected to intension air intake, rotation pinking combustion
It burns section and is connected to intension gas vent, the compressor rotor of rotating unit is located in boost section.
Wherein, outside air is logical via outer culvert air intake, outer culvert airflow channel, intension air intake and intension air-flow
The boost section in road is air-supplied into distance piece, and fuel supply unit feeds fuel gas, air and fuel into distance piece rear portion
Gas is flowed into after mixing in distance piece rear portion in rotation detonating combustion section.
Igniter lights a fire to the mixed gas in rotation detonating combustion section, and mixed gas rotates detonating combustion and rotation
The combustion product generated after detonating combustion drives the cylinder rotary motion of rotating unit, and fan propeller and compressor rotor are with cylinder
Body rotary motion together, and rotate the combustion product after the detonating combustion in detonating combustion section and be discharged via intension gas vent.
The fan propeller of rotary motion externally contains the air compressed action in airflow channel, is compressed in outer culvert airflow channel
Air a part afterwards enters the increasing of intension airflow channel via outer culvert air outlet slit discharge, a part via intension air intake
Press section.
For the compressor rotor of rotary motion to the air compressed action in boost section, boost section is interior by compressed air stream
Enter distance piece and the fuel gas fed with fuel supply unit mixes.
Cylinder has：Main part axially extends to intension support component and is rotationally connected with intension support component；First
Axis body portion axially extends to outer culvert support component and is rotationally connected with outer culvert support component；The second axle body portion, is connected to first
Axis body portion and the downstream for being axially located in the first axle body portion；And corner part, be axially located in main part and the second axle body portion it
Between and be connected to main part and the second axle body portion.The first axle body portion, which is contained in outer housing and forms outer culvert air-flow with outer housing, to be led to
Road, the second axle body portion are contained in inner housing and form the boost section of intension airflow channel with inner housing, and corner part is contained in inner casing
Body and the distance piece that intension airflow channel is formed with inner housing, main part are contained in inner housing and form intension air-flow with inner housing
The rotation detonating combustion section in channel.Fan propeller is fixedly installed in the first axle body portion, and compressor rotor is fixedly installed in the second axis
Body portion.
Outer culvert support component includes：Suction cone, positioned at outer housing week inwardly and with outer housing interval be arranged；And
Multiple outer culvert support plates, along the circumferentially-spaced distribution of outer housing, each outer culvert support plate is fixedly connected with outer housing and suction cone.Cylinder
The first axle body portion of body is rotationally connected with suction cone by first bearing.
Outer culvert unit further includes：Outer culvert static blade in outer culvert airflow channel and is fixedly connected with outer housing and intension
The inner housing of unit.
Intension support component includes：Be vented cone, positioned at inner housing week inwardly and with inner housing interval be arranged；And
Multiple intension support plates, along the circumferentially-spaced distribution of inner housing, each intension support plate is fixedly connected with inner housing and exhaust cone.Cylinder
The main part of body is rotationally connected with exhaust cone by second bearing.
Intension unit further includes：Intension static blade in the boost section of intension airflow channel and is fixed on inner housing.
Intension static blade has：Matrix part；First edge, it is radially projecting in matrix part and to be fixedly connected on inner casing
Body；And second edge, it is radially projecting to be oppositely arranged in matrix part and with the first edge.The second axle body portion of cylinder passes through the
Three bearings are rotationally connected with the second edge of intension static blade.
Cylinder is provided with：Multiple grooves, axially spaced distribution, each groove are formed in the outer surface of main part and circumferentially
Extend.
Cylinder is additionally provided with：First protrusion, the outer surface and edge of the part of the prominent close main part for being formed in corner part
Circumferentially extending.Inner housing is provided with：Second protrusion, the prominent inner surface for being formed in inner housing are simultaneously oppositely arranged with the first protrusion.
Wherein, the first protrusion of cylinder convexes to form decrement formula channel with the second of inner housing, and decrement formula channel is intension gas
The distance piece rear portion of circulation road.
Inner housing includes：First wall body；And second wall body, it is fixedly connected on the first wall body and forms sky with the first wall body
Chamber.The second wall body and intension support component of inner housing, the cylinder of rotating unit form intension airflow channel.Fuel supply unit
In the cavity that the first wall body and the second wall body are formed and it is fixed on the second wall body, and fuel supply unit includes：Cartridge,
It is connected to external fuel feedway；Nozzle is connected to cartridge；Prevapourising room, for being steamed to the fuel that nozzle sprays into
Hair processing；Fuel gas collection chamber is connected to prevapourising room；And fuel gas spout, perforation are set to the second wall body and are connected to
The distance piece rear portion of intension airflow channel.Igniter is fixedly installed on the second wall body.
Beneficial effects of the present invention are as follows：
In rotation detonation engine according to the present invention, rotation detonating combustion section is equivalent to the burning of conventional engines
Room, and intension gas vent is equivalent to traditional combustion room outlet.Since rotation detonating combustion section uses rotation detonating combustion technology,
Thus in the case where same combustion chamber temperature rise is horizontal, entropy increases minimum, to significantly improve the thermal efficiency of engine, reduce oil consumption rate.
Also, since the interior energy almost all of the detonating combustion product in rotation detonating combustion section is converted into the cylinder of rotating unit, wind
The mechanical energy of rotor and compressor rotor is fanned, so that fan propeller, compressor rotor and cylinder are rotate together at high speed, Jin Erwu
Turbine part need to be set.This mode is compared with conventional engines are in such a way that turbine part drives compressor to rotate, significantly
It improves combustor exit temperature, significantly reduce engine quality, thus improve the thrust ratio of engine.Further, since
Rotating detonating combustion has from supercharging performance, thus can effectively reduce compressor series.
Detailed description of the invention
Fig. 1 is the overall structure diagram of rotation detonation engine according to the present invention.
Fig. 2 is the positional diagram rotated between the fuel supply unit and inner housing of detonation engine.
Fig. 3 is the enlarged drawing of the encircled portion in Fig. 2.
Fig. 4 is the structural schematic diagram of the outer culvert unit in Fig. 1.
Fig. 5 is circumferentially distributed schematic diagram of the outer culvert support plate in Fig. 4 along outer housing.
Fig. 6 is the structural schematic diagram of the intension unit in Fig. 1.
Fig. 7 is the enlarged drawing of the encircled portion in Fig. 6.
Fig. 8 is circumferentially distributed schematic diagram of the intension support plate in Fig. 6 along inner housing.
Fig. 9 is the structural schematic diagram of the rotating unit in Fig. 1.
Wherein, the reference numerals are as follows：
Contain 243 second edge of unit outside 1
11 outer housing 2A intension air intakes
Contain support component 2B intension gas vent outside 12
121 suction cone, 3 rotating unit
Contain 31 cylinder of support plate outside 122
1211 the first noumenon portion, 311 main part
1212 recess portion, 312 the first axle body portion
Contain 313 the second axle body portion of airflow channel outside 13
Contain 314 corner part of static blade outside 14
Contain 315 groove of air intake outside 1A
Contain 316 first protrusion of air outlet slit outside 1B
2 intension unit, 32 fan propeller
21 inner housing, 33 compressor rotor
211 first wall body, 34 speed changer
212 second wall body, 4 fuel supply unit
213 second raised 41 cartridges
22 intension support component, 42 nozzle
221 exhaust 43 prevapourising rooms of cone
222 intension support plate, 44 fuel gas collection chamber
2211 second body part, 45 fuel gas spout
2212 protrusion, 5 igniter
23 intension airflow channel C are axial
231 boost section D are radial
232 distance piece T1 first bearings
233 rotation detonating combustion section T2 second bearings
24 intension static blade T3 3rd bearings
241 matrix part S bolts
242 first edges
Specific embodiment
It is described in detail rotation detonation engine according to the present invention with reference to the accompanying drawings.
Referring to Fig.1, rotation detonation engine includes：Outer culvert unit 1, intension unit 2, rotating unit 3, fuel supply unit
4 and igniter 5.
Outer culvert unit 1 includes：Outer housing 11 has outer culvert air intake 1A and outer culvert air outlet slit 1B；And outer culvert
Support component 12 is fixedly installed in outer housing 11.
Intension unit 2 is fixed on outer culvert unit 1 and is located at the downstream of outer culvert support component 12 along axial C, and including：Inner casing
Body 21 has intension air intake 2A and intension gas vent 2B；And intension support component 22, it is fixedly installed on inner housing
In 21.
Rotating unit 3 includes：Cylinder 31 is rotationally connected with outer culvert support component 12 and intension support component 22；Fan turns
Son 32, is fixed on cylinder 31 and along axial C between outer culvert support component 12 and inner housing 21；And compressor rotor 33,
It is fixed on cylinder 31 and is located at the downstream of fan propeller 32 along axial C.
Fuel supply unit 4 and igniter 5 are fixedly installed on inner housing 21.
It is outer contain unit 1 outer housing 11 and it is outer culvert support component 12, the cylinder 31 of rotating unit 3, intension unit 2 inner casing
Body 21 forms outer culvert airflow channel 13, and outer culvert airflow channel 13 is connected to outer culvert air intake 1A and outer culvert air outlet slit 1B,
The fan propeller 32 of rotating unit 3 is located in outer culvert airflow channel 13.
The inner housing 21 and intension support component 22 of intension unit 2, the cylinder 31 of rotating unit 3 form intension airflow channel
23, there is intension airflow channel 23 boost section 231, distance piece 232 and rotation detonating combustion section 233, boost section 231 to be connected to
Intension air intake 2A, rotation detonating combustion section 233 are connected to intension gas vent 2B, the compressor rotor 33 of rotating unit 3
In boost section 231.Wherein, the part of the close rotation detonating combustion section 233 of distance piece 232 is 232 rear portion of distance piece, and
The part of the close boost section 231 of distance piece 232 is 232 front of distance piece.
Outside air is via outer culvert air intake 1A, outer culvert airflow channel 13, intension air intake 2A and intension air-flow
The boost section 231 in channel 23 is air-supplied into distance piece 232, and fuel supply unit 4 feeds fuel into 232 rear portion of distance piece
Gas, air and fuel gas are flowed into after mixing in 232 rear portion of distance piece in rotation detonating combustion section 233.
Igniter 5 is used to light a fire to the mixed gas in rotation detonating combustion section 233.After igniter 5 triggers,
It rotates and forms one or multi-channel circumferentially high-speed rotating detonation wave in detonating combustion section 233, mixed gas rotates pinking at this time
Combustion product after burning and detonating combustion has very strong circumferential speed, so that the cylinder 31 of rotating unit 3 be driven to rotate fortune
It is dynamic.Since fan propeller 32 and compressor rotor 33 are fixedly connected on cylinder 31, thus fan propeller 32 and compressor rotor 33
With cylinder 31 together rotary motion.At this point, the interior of combustion product in rotation detonating combustion section 233 after detonating combustion can be almost
It is completely converted into the whole mechanical energy of rotating unit 3, thus this portion gas is nearly free from the thrust of rotation detonation engine,
It is directly discharged via intension gas vent 2B.
The fan propeller 32 of rotary motion externally contains the air compressed action in airflow channel 13, in outer culvert airflow channel 13
Two-way is divided by compressed air：Portion of air is expelled directly out via outer culvert air outlet slit 1B, which generates rotation
Turn the most thrust of detonation engine；Another part air enters intension airflow channel 23 via intension air intake 2A
Boost section 231.
The compressor rotor 33 of rotary motion continues compressed action to the air in boost section 231, is pressed in boost section 231
Air after contracting flows into distance piece 232 and the fuel gas fed with fuel supply unit 4 mixes, air in 232 rear portion of distance piece
It is flowed into rotation detonating combustion section 233 together with the mixed gas of fuel gas composition, so that in rotation detonating combustion section 233
Mixed gas can continuously carry out rotation detonating combustion.In this way, rotating detonation engine continuously steady operation.
In rotation detonation engine according to the present invention, rotation detonating combustion section 233 is equivalent to the combustion of conventional engines
Room is burnt, and intension gas vent 2B is equivalent to traditional combustion room outlet.Since rotation detonating combustion section 233 is using rotation pinking combustion
Burning technology, thus entropy increases minimum in the case where same combustion chamber temperature rise is horizontal, to significantly improve the thermal efficiency of engine, reduce
Oil consumption rate.Also, since the interior energy almost all of the combustion product in rotation detonating combustion section 233 is converted into rotating unit 3
The mechanical energy of cylinder 31, fan propeller 32 and compressor rotor 33, thus fan propeller 32, compressor rotor 33 and cylinder 31
It rotate together at high speed, and then no setting is required turbine part.This mode and conventional engines are using turbine part drive compressor
The mode of rotation is compared, and is greatly improved combustor exit temperature, is significantly reduced engine quality, thus improves engine
Thrust ratio.
Further, since rotation detonating combustion has from supercharging performance, thus compressor series can be effectively reduced, to start
The structure size and weight of machine can also further decrease, and thus thrust ratio is substantially improved.Also, rotation pinking of the invention is started
Machine can be used as the power dress to fuel economy, construction weight and more demanding transporter, the airline carriers of passengers of pollutant emission etc.
In setting, while its core technology can be used as power device, the power device of surface ship of terrestrial power generation or other output shaft works
Deng.
Can have with Fig. 9, cylinder 31 referring to Fig.1：Main part 311 extends to intension support component 22 along axial C and rotates
It is connected to intension support component 22；The first axle body portion 312 extends to outer culvert support component 12 along axial C and is rotationally connected with outer
Contain support component 12；The second axle body portion 313 is connected to the first axle body portion 312 and is located under the first axle body portion 312 along axial C
Trip；And corner part 314, between main part 311 and the second axle body portion 313 and main part 311 and are connected to along axial C
Two axis body portions 313.
The first axle body portion 312 of cylinder 31 is contained in outer housing 11 and forms outer culvert airflow channel 13 with outer housing 11, the
Two axis body portions 313 are contained in inner housing 21 and form the boost section 231 of intension airflow channel 23, corner part 314 with inner housing 21
It is contained in inner housing 21 and forms the distance piece 232 of intension airflow channel 23 with inner housing 21, main part 311 is contained in inner housing
21 and with inner housing 21 formed intension airflow channel 23 rotation detonating combustion section 233.Fan propeller 32 is fixedly installed in first
Axis body portion 312, compressor rotor 33 are fixedly installed in the second axle body portion 313.
What needs to be explained here is that boost section 231 along axial C extend, rotation detonating combustion section 233 along axial C extend and
Distance piece 232 first radially D extend and then extend again along axial C (i.e. in rotation detonating combustion section 233 and boost section 231 it
Between the part of cylinder 31 be corner part 314), as shown in Fig. 1 and Fig. 9.Therefore, distance piece 232 includes 90 ° of bending parts
Point, so as to effectively inhibit to rotate the pressure passback of detonating combustion section 233.
Referring to Fig.1, Fig. 4 and Fig. 5, outer culvert support component 12 may include：Suction cone 121, positioned at the circumferential direction of outer housing 11
Inside is simultaneously spaced setting with outer housing 11；And multiple outer culvert support plates 122, it is each outer along the circumferentially-spaced distribution of outer housing 11
Contain support plate 122 and is fixedly connected with outer housing 11 and suction cone 121.The first axle body portion 312 of cylinder 31 passes through first bearing T1
It is rotationally connected with suction cone 121.
Specifically, can have with Fig. 4, suction cone 121 referring to Fig.1：The first noumenon portion 1211；And recess portion 1212, from
The surface towards intension unit 2 in the first noumenon portion 1211 is formed along axial C is recessed.First bearing T1 be ball bearing, first
The outer ring of bearing T1 accommodates and is fixed on the recess portion 1212 of suction cone 121, the separate main part 311 in the first axle body portion 312
End accommodates and is fixed on the inner ring of first bearing T1.When 31 rotary motion of cylinder, the inner ring of first bearing T1 is in cylinder 31
Under the action of outer ring rotating with respect to first bearing T1.
It may also include referring to Fig.1 with Fig. 4, outer culvert unit 1：Outer culvert static blade 14 is located in outer culvert airflow channel 13 simultaneously
It is fixedly connected with the inner housing 21 of outer housing 11 and intension unit 2.Here, outer culvert static blade 14 is by outer housing 11 and intension list
While the inner housing 21 of member 2 is fixedly connected, additionally aids and provide guiding for the air circulation in outer culvert airflow channel 13.
Referring to Fig.1, Fig. 6 and Fig. 8, intension support component 22 are fixedly installed at the intension gas vent 2B of inner housing 21,
And intension support component 22 may include：Be vented cone 221, positioned at inner housing 21 week inwardly and with inner housing 21 interval set
It sets；And multiple intension support plates 222, along the circumferentially-spaced distribution of inner housing 21, each intension support plate 222 is fixedly connected with inner casing
Body 21 and exhaust cone 221.The main part 311 of cylinder 31 is rotationally connected with exhaust cone 221 by second bearing T2.At this point,
Interval between the outer surface of the inner surface of inner housing 21, the outer surface for being vented cone 221 and each intension support plate 222 is constituted
Intension gas vent 2B.
Here, exhaust cone 221 is not only that the discharge of the combustion product in rotation detonating combustion section 233 provides guiding, also
Help to make the axial component velocity of combustion product to be further converted to circumferential component velocity, so that the interior of combustion product can be into one
Step is converted into the mechanical energy of rotating unit 3.
Referring to Fig.1 and Fig. 6, the section of exhaust cone 221 can be trapezoidal shape.
Specifically, can have with Fig. 6, exhaust cone 221 referring to Fig.1：Second body part 2211；And protrusion 2212, edge
Axial C protrudes from the second body part 2211.Second bearing T2 is ball bearing, and the inner ring of second bearing T2 is arranged and is fixed on row
The end of the protrusion 2212 of gas coning body 221, the separate corner part 314 of main part 311 is arranged and is fixed on the outer of second bearing T2
Circle.When 31 rotary motion of cylinder, the outer ring of second bearing T2 inner ring of opposite second bearing T2 under the action of cylinder 31 turns
It is dynamic.
Referring to Fig.1, Fig. 6 and Fig. 7, intension unit 2 further include：Intension static blade 24, positioned at intension airflow channel 23
In boost section 231 and it is fixed on inner housing 21.Here, the boost section that intension static blade 24 is used for as intension airflow channel 23
Air circulation in 231 provides guiding.
Referring to Fig. 7, intension static blade 24 can have：Matrix part 241；First edge 242, radially D protrudes from matrix
Portion 241 is simultaneously fixedly connected on inner housing 21；And second edge 243, radially D protrude from matrix part 241 and with the first edge
242 are oppositely arranged.Referring to Fig.1, the second axle body portion 313 of cylinder 31 is rotationally connected with intension static blade by 3rd bearing T3
24 the second edge 243.
What needs to be explained here is that due to cylinder 31 the first axle body portion 312 by first bearing T1 be rotationally connected with into
Gas coning body 121, the second axle body portion 313 are rotationally connected with the second edge 243, the master of intension static blade 24 by 3rd bearing T3
Body portion 311 is rotationally connected with exhaust cone 221 by second bearing T2, thus rotating unit 3 is whole by three point supportings, protects
Stationarity of the rotating unit 3 in rotary course is demonstrate,proved.
First edge 242 of intension static blade can be fixedly connected on inner housing 21 by bolt S, as shown in Figure 7.
It may also include referring to Fig.1 with Fig. 9, rotating unit 3：Speed changer 34 is located at fan propeller 32 and compressor along axial C
Between rotor 33 and it is fixed on cylinder 31.Here, compressor rotor 33 is identical as the revolving speed of cylinder 31, in the effect of speed changer 34
Under, the revolving speed of fan propeller 32 can be adjusted according to the actual condition and intensity requirement of engine, so that cylinder 31, fan
Meet power-balance between rotor 32,33 three of compressor rotor.
Referring to Fig. 2 and Fig. 3, cylinder 31 be may be provided with：Multiple grooves 315, are spaced apart along axial C, each formation of groove 315
In the outer surface and circumferentially of main part 311.Specifically, groove 315 quantitatively can be 5, and each groove 315 can be saw
Tooth form groove.
Since the combustion product after the rotation pinking in rotation detonating combustion section 233 has circumferential and axial point speed simultaneously
Degree, the setting of groove 315 is so that the circumferential component velocity of combustion product increases, and axial component velocity reduces, so that burning produces
The interior mechanical energy that can be maximumlly converted into rotating unit 3 of object.
Referring to Fig. 2 and Fig. 9, cylinder 31 is also provided with：First protrusion 316 is prominent to be formed in the close main of corner part 314
The outer surface of the part in body portion 311 and circumferentially.Inner housing 21 may be provided with：Second protrusion 213, protrusion are formed in inner casing
The inner surface of body 21 is simultaneously oppositely arranged with the first protrusion 316.Wherein, the first protrusion 316 and the second of inner housing 21 of cylinder 31
Protrusion 213 forms decrement formula channel, and decrement formula channel is 232 rear portion of distance piece of intension airflow channel 23.
When the air in boost section 231 enters 232 rear portion of distance piece via 232 front of distance piece, due to distance piece 232
Rear portion is formed as decrement formula channel, thus facilitates air and be sufficiently mixed here with fuel gas, while can also effectively inhibit
Rotate the pressure passback in detonating combustion section 233.Also, when the mixed gas that air and fuel gas are formed is via distance piece 232
When rear portion is entered in rotation detonating combustion section 233, the flowing velocity of mixed gas is also substantially improved, to help to improve rotation
The interior energy of combustion product in detonating combustion section 233, thus further improves the mechanical energy of rotating unit 3.
Specifically, the cross sectional shape of the first protrusion 316 and the second protrusion 213 can be wedge shape, as shown in Figure 2.
Referring to Fig.1, Fig. 2 and Fig. 6, inner housing 21 may include：First wall body 211；And second wall body 212, it is fixedly connected
Cavity is formed in the first wall body 211 and with the first wall body 211.The second wall body 212 and intension support component 22 of inner housing 21 turn
The cylinder 31 of moving cell 3 forms intension airflow channel 23.Fuel supply unit 4 is located at 212 shape of the first wall body 211 and the second wall body
At cavity in and fixed (as welded) in the second wall body 212.Igniter 5 is fixedly installed on the second wall body 212.
Fuel supply unit 4 may include：Cartridge 41 is connected to external fuel feedway (not shown)；Nozzle 42, even
Pass through cartridge 41；Prevapourising room 43 is connected to nozzle 42, and the fuel for spraying into nozzle 42, which is evaporated, to be handled so that combustion
Material is evaporated to fuel gas；Fuel gas collection chamber 44 is connected to prevapourising room 43；And fuel gas spout 45, perforation are set to interior
Second wall body 212 of shell 21 and 232 rear portion of distance piece for being connected to intension airflow channel 23.
In order to improve the blending speed of fuel gas and air in the distance piece 232 of intension airflow channel 23, to rotate
It is formed in detonating combustion section 233 and stablizes pinking, the air in fuel gas injection direction and distance piece 232 in fuel gas spout 45
Angle between flow direction is 60 °.
Claims (10)
1. a kind of rotation detonation engine, which is characterized in that including：
Outer culvert unit (1), including：
Outer housing (11) has outer culvert air intake (1A) and contains air outlet slit (1B) outside；
And
Outer culvert support component (12), is fixedly installed in outer housing (11)；
Intension unit (2) is fixed on outer culvert unit (1) and is located at the outer downstream for containing support component (12) along axial direction (C), including：
Inner housing (21) has intension air intake (2A) and intension gas vent (2B)；
And
Intension support component (22) is fixedly installed in inner housing (21)；
Rotating unit (3), including：
Cylinder (31) is rotationally connected with outer culvert support component (12) and intension support component (22)；
Fan propeller (32), be fixed on cylinder (31) and along axial direction (C) be located at outer culvert support component (12) and inner housing (21) it
Between；And
Compressor rotor (33) is fixed on cylinder (31) and is located at the downstream of fan propeller (32) along axial direction (C)；
Fuel supply unit (4) is fixedly installed on inner housing (21)；And
Igniter (5) is fixedly installed on inner housing (21)；
Cylinder (31), the intension unit of the outer outer housing (11) for containing unit (1) and outer culvert support component (12), rotating unit (3)
(2) inner housing (21) formed it is outer contain airflow channel (13), outer culvert airflow channel (13) be connected to outer culvert air intake (1A) with
And outer culvert air outlet slit (1B), the fan propeller (32) of rotating unit (3) are located in outer culvert airflow channel (13)；
The inner housing (21) of intension unit (2) and the cylinder (31) of intension support component (22), rotating unit (3) form intension gas
Circulation road (23), intension airflow channel (23) have boost section (231), distance piece (232) and rotation detonating combustion section
(233), boost section (231) is connected to intension air intake (2A), and rotation detonating combustion section (233) is connected to intension gas vent
(2B), the compressor rotor (33) of rotating unit (3) are located in boost section (231)；
Wherein, outside air is via outer culvert air intake (1A), outer culvert airflow channel (13), intension air intake (2A) and interior
The boost section (231) for containing airflow channel (23) is air-supplied into distance piece (232), and fuel supply unit (4) is to distance piece
(232) fuel gas is fed in rear portion, air and fuel gas flow into rotation detonating combustion section after mixing in distance piece (232) rear portion
(233) in；
Igniter (5) to rotation detonating combustion section (233) in mixed gas light a fire, mixed gas rotate detonating combustion and
The combustion product that generates drives cylinder (31) rotary motion of rotating unit (3) after rotation detonating combustion, fan propeller (32) and
Compressor rotor (33) with cylinder (31) rotary motion together, and rotate the combustion product in detonating combustion section (233) via
Intension gas vent (2B) discharge；
The fan propeller (32) of rotary motion externally contains the air compressed action in airflow channel (13), outer culvert airflow channel (13)
It is interior to be discharged by compressed air a part via outer culvert air outlet slit (1B), is a part of via intension air intake (2A) entrance
The boost section (231) of intension airflow channel (23)；
To the air compressed action in boost section (231), boost section (231) is interior to be compressed the compressor rotor (33) of rotary motion
Air afterwards flows into distance piece (232) and the fuel gas fed with fuel supply unit (4) mixes.
2. rotation detonation engine according to claim 1, which is characterized in that
Cylinder (31) has：Main part (311) extends to intension support component (22) along axial direction (C) and is rotationally connected with intension
Support component (22)；The first axle body portion (312) extends to outer culvert support component (12) along axial direction (C) and is rotationally connected with outer culvert
Support component (12)；The second axle body portion (313) is connected to the first axle body portion (312) and is located at the first axle body portion along axial direction (C)
(312) downstream；And corner part (314), it is located between main part (311) and the second axle body portion (313) along axial direction (C) and connects
It is connected to main part (311) and the second axle body portion (313)；
The first axle body portion (312) is contained in outer housing (11) and forms outer culvert airflow channel (13), the second axis with outer housing (11)
Body portion (313) is contained in inner housing (21) and forms the boost section (231) of intension airflow channel (23), turning with inner housing (21)
Portion (314) is contained in inner housing (21) and forms the distance piece (232) of intension airflow channel (23), main part with inner housing (21)
(311) it is contained in inner housing (21) and forms the rotation detonating combustion section (233) of intension airflow channel (23) with inner housing (21)；
Fan propeller (32) is fixedly installed in the first axle body portion (312), and compressor rotor (33) is fixedly installed in the second axle body portion
(313)。
3. rotation detonation engine according to claim 2, which is characterized in that
Outer culvert support component (12) includes：Suction cone (121), be located at outer housing (11) week inwardly and with outer housing (11)
Interval setting；And multiple outer culvert support plates (122), along the circumferentially-spaced distribution of outer housing (11), each outer culvert support plate (122)
It is fixedly connected with outer housing (11) and suction cone (121)；
The first axle body portion (312) of cylinder (31) is rotationally connected with suction cone (121) by first bearing (T1).
4. rotation detonation engine according to claim 2, which is characterized in that containing unit (1) outside further includes：Outer culvert is static
Blade (14) is located in outer culvert airflow channel (13) and is fixedly connected the inner housing (21) of outer housing (11) and intension unit (2).
5. rotation detonation engine according to claim 2, which is characterized in that
Intension support component (22) includes：Be vented cone (221), be located at inner housing (21) week inwardly and with inner housing (21)
Interval setting；And multiple intension support plates (222), along the circumferentially-spaced distribution of inner housing (21), each intension support plate (222)
It is fixedly connected with inner housing (21) and exhaust cone (221)；
The main part (311) of cylinder (31) is rotationally connected with exhaust cone (221) by second bearing (T2).
6. rotation detonation engine according to claim 2, which is characterized in that intension unit (2) further includes：Intension is static
Blade (24) is located in the boost section (231) of intension airflow channel (23) and is fixed on inner housing (21).
7. rotation detonation engine according to claim 6, which is characterized in that
Intension static blade (24) has：Matrix part (241)；First edge (242), radially (D) protrudes from matrix part (241)
And it is fixedly connected on inner housing (21)；And second edge (243), radially (D) protrude from matrix part (241) and with the first edge
Portion (242) is oppositely arranged；
The second axle body portion (313) of cylinder (31) is rotationally connected with the second of intension static blade (24) by 3rd bearing (T3)
Edge (243).
8. rotation detonation engine according to claim 2, which is characterized in that cylinder (31) is provided with：Multiple grooves
(315), it is spaced apart along axial direction (C), each groove (315) is formed in the outer surface of main part (311) and circumferentially.
9. rotation detonation engine according to claim 2, which is characterized in that
Cylinder (31) is additionally provided with：First raised (316), the portion of the prominent close main part (311) for being formed in corner part (314)
Point outer surface and circumferentially；
Inner housing (21) is provided with：Second raised (213), the prominent inner surface for being formed in inner housing (21) and with the first protrusion
(316) it is oppositely arranged；
Wherein, first raised (316) of cylinder (31) and second raised (213) of inner housing (21) form decrement formula channel, and
Decrement formula channel is distance piece (232) rear portion of intension airflow channel (23).
10. rotation detonation engine according to claim 2, which is characterized in that
Inner housing (21) includes：First wall body (211)；And second wall body (212), it is fixedly connected on the first wall body (211) simultaneously
Cavity is formed with the first wall body (211)；
The second wall body (212) of inner housing (21) and the cylinder (31) of intension support component (22), rotating unit (3) form intension
Airflow channel (23)；
Fuel supply unit (4) is located in the cavity that the first wall body (211) and the second wall body (212) are formed and is fixed on the second wall
Body (212), and fuel supply unit (4) includes：
Cartridge (41), is connected to external fuel feedway；
Nozzle (42) is connected to cartridge (41)；
Prevapourising room (43), the fuel for spraying into nozzle (42) are evaporated processing；
Fuel gas collection chamber (44) is connected to prevapourising room (43)；And
Fuel gas spout (45), perforation are set to the second wall body (212) and are connected to the distance piece of intension airflow channel (23)
(232) rear portion；
Igniter (5) is fixedly installed on the second wall body (212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810843562.0A CN108869094A (en) | 2018-07-27 | 2018-07-27 | Rotate detonation engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810843562.0A CN108869094A (en) | 2018-07-27 | 2018-07-27 | Rotate detonation engine |
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|---|---|
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Family
ID=64305854
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810843562.0A Pending CN108869094A (en) | 2018-07-27 | 2018-07-27 | Rotate detonation engine |
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| CN110388643A (en) * | 2019-07-26 | 2019-10-29 | 合肥工业大学 | The gas-air premixed device of hydrogen-enriched fuel gas combustion with reduced pollutants |
| CN110425045A (en) * | 2019-08-13 | 2019-11-08 | 清华大学 | Continuous rotation detonation engine |
| CN110578603A (en) * | 2019-08-23 | 2019-12-17 | 南京航空航天大学 | disc type rotary detonation turbine engine based on kerosene |
| CN112325332A (en) * | 2020-10-13 | 2021-02-05 | 南京航空航天大学 | Partial premixing and pre-evaporation double-channel injection device for rotary detonation engine |
| CN114320607A (en) * | 2022-01-06 | 2022-04-12 | 中国航发贵阳发动机设计研究所 | Non-rotary double-layer structure anti-icing fairing cap of aircraft engine |
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