CN108361125A - Elbow type multi-pipe impulse detonation engine - Google Patents
Elbow type multi-pipe impulse detonation engine Download PDFInfo
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- CN108361125A CN108361125A CN201810212794.6A CN201810212794A CN108361125A CN 108361125 A CN108361125 A CN 108361125A CN 201810212794 A CN201810212794 A CN 201810212794A CN 108361125 A CN108361125 A CN 108361125A
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- detonation
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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
- F02K7/02—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 the jet being intermittent, i.e. pulse-jet
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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
- F02K7/02—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 the jet being intermittent, i.e. pulse-jet
- F02K7/06—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 the jet being intermittent, i.e. pulse-jet with combustion chambers having valves
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The present invention relates to pulse-knocking engine technical fields, more particularly to a kind of elbow type multi-pipe impulse detonation engine, including driving motor, the detonation engine main shaft and at least two detonation tubes being fixedly and coaxially connected with driving motor output shaft, the detonation tube axis is arranged in parallel with the detonation engine main-shaft axis, it further include the first detonation tube terminal pad for connecting the detonation tube, detonation tube axis extends vertically through the first circular hole for being provided with and matching with the pinking pipe diameter described in the first detonation tube terminal pad face, the detonation tube is fixedly mounted in first circular hole；The detonation engine main shaft drives the detonation tube to be rotated around the detonation engine main-shaft axis by multi-orifice valve, one end of driving motor described in the multi-orifice valve face is provided with explosive gas mixing pipe road component, air pipe line component and firing cable, and the multi-orifice valve is fixedly connected back to the side of the driving motor with the pinking tube end.
Description
Technical field
The present invention relates to pulse-knocking engine technical fields, and in particular to a kind of elbow type multi-pipe impulse pinking is started
Machine.
Background technology
Pulse-knocking engine is a kind of new concept engine generating thrust using detonating combustion wave.Due to detonation wave
Spread speed is exceedingly fast, and up to thousands of metre per second (m/s)s, combustion product has little time to expand in combustion, and pinking process connects very much
Nearly isochoric combustion process, therefore theoretically its thermal efficiency of cycle will be significantly higher than the conventional aviation based on isobaric combustion process
Engine.In addition, since also there is pinking process extremely strong boosting capability, detonation engine can cancel compressor and turbine etc.
Rotary part, therefore also have many advantages, such as that simple in structure, light-weight, thrust-weight ratio is big.Above-mentioned potential advantages make pulse-knocking send out
Motivation becomes a kind of very attractive spacecraft propulsion technology, and nearly ten years by scientific and technological circle of various countries and industrial quarters
Greatly concern.
The characteristics of according to inlet duct, at present pulse-knocking engine can be divided into pneumatic valve type and mechanical valve type two major classes.
Wherein, although pneumatic valve type detonation engine structure is simple, often there is larger amount of air-flow from engine during pinking
Import spues, and produces reversed momentum, propulsive performance is undesirable thus, not yet obtains positive thrust at present.And mechanical valve type pinking
Engine then can be divided into diaphragm type, reed-type and rotary valve again.Diaphragm type, reed-type mechanical valve are easily damaged, and the service life is shorter.
It is rotary valve type detonation engine that this studies more at present, and successfully develops the rotary valve type arteries and veins that can obtain positive thrust
Rush detonation engine.But rotary valve type detonation engine generally uses the form of multitube installation, multipipe structure to make valve control
Difficult coordination processed, and there is a problem of that difficulty, and every detonation tube are coordinated and controlled in the air inlet between multitube and igniting etc.
It is required to be furnished with air intake valve, oil inlet valve and respective line, causes rotary valve type detonation engine complicated, using not
Just.Its detonation tube thermic load of traditional pulse detonation engine is big simultaneously, rate of heat dissipation is relatively low, and have much room for improvement raising.
Invention content
It is a kind of simple in structure the technical problem to be solved by the present invention is to how to provide, coordinate easy to control, rate of heat dissipation height
Elbow type multi-pipe impulse detonation engine.
The technical solution that the present invention solves above-mentioned technical problem is as follows：A kind of elbow type multi-pipe impulse detonation engine, packet
The detonation engine main shaft and at least two detonation tubes for including driving motor, being fixedly and coaxially connected with driving motor output shaft, institute
It states detonation tube axis to be arranged in parallel with the detonation engine main-shaft axis, the detonation tube is along the detonation engine spindle shaft
The circumferentially radially distributed setting of line, and the detonation tube axis is consistent to detonation engine main-shaft axis distance, further includes using
In the first detonation tube terminal pad for connecting the detonation tube, detonation tube axis is vertical described in the first detonation tube terminal pad face
It is provided through the first circular hole to match with the pinking pipe diameter, the detonation tube is fixedly mounted on first circular hole
It is interior；The detonation engine main shaft drives the detonation tube to be rotated around the detonation engine main-shaft axis by multi-orifice valve, institute
The one end for stating driving motor described in multi-orifice valve face is provided with explosive gas mixing pipe road component, air pipe line component and firing cable,
The multi-orifice valve is fixedly connected back to the side of the driving motor with the pinking tube end, and the pinking tube end passes through institute
Multi-orifice valve is stated to extend to inside the multi-orifice valve.
Further, the detonation tube is provided with four or the six roots of sensation.
Further, the first detonation tube terminal pad is disk, the disc centre and the detonation engine main shaft
Face is arranged.
Further, further include the second detonation tube terminal pad, the second detonation tube terminal pad and first detonation tube
Connection dish structure is consistent and face is arranged at intervals on the first detonation tube terminal pad back to the side of the driving motor, described
Detonation tube is fixedly mounted in the second detonation tube terminal pad and pinking tube end is after the second detonation tube terminal pad
Extend outwardly setting.
Further, during the multi-orifice valve includes left end cap, right end cap and is arranged between left end cap and right end cap
Heart valve body, the left end cap are fixedly connected with center valve body one end, and the second circular hole is provided through among the left end cap,
Second circular hole described in the center valve body face is provided through third circular hole, and the detonation engine main shaft passes through described second
Be fixedly mounted in the third circular hole by bearing after circular hole, the detonation engine main shaft far from the driving motor one
End is fixedly mounted on the right end cap；The left end cap and center valve body face are provided through burning mixture injection
Hole is triggered in hole, blast injection hole and ignition electric nozzle, the burning mixture spray-hole, blast injection hole and
Ignition electric nozzle triggering hole is spaced setting, the burning mixture spray-hole center of circle, the blast injection hole center of circle and point
The thermoelectricity mouth triggering hole center of circle is arranged at using the second circular hole as on the same annulus in the center of circle and the circle diameter and detonation tube axis
Consistent to distance between detonation engine main-shaft axis, the burning mixture nozzle inside diameter, blast injection hole are straight
Diameter and ignition electric nozzle triggering bore dia size are respectively less than the detonation tube diameter dimension, the flammable mixing on the center valve body
Gas jetting hole, blast injection hole and ignition electric nozzle triggering hole are equipped with gas nozzle, sky to right end cap direction respectively
Gas spraying device and ignition electric nozzle, the gas nozzle, air jet system and ignition electric nozzle respectively with it is described explosive mixed
Air pipe component, air pipe line component connect setting with firing cable；Third circular hole described in the right end cap face is through setting
There is the 4th circular hole that diameter matches with pinking pipe diameter, the pinking tube end is fixedly mounted in the 4th circular hole and institute
Pinking tube end is stated to approach with center valve body right side after the 4th circular hole；
The surface of right end cap described in the center valve body face is provided with the first cylinder to close to the direction of right end cap protrusion
And the second cylinder, described the first cylinder and the second cylinder are arranged concentrically, the first cylinder diameter dimension, which is more than described second, to be justified
Cylinder diameter dimension, first annular groove is formed between the first cylinder inner surface and the second cylinder outer surface；The right side
The surface of center valve body described in end cap face is provided with the 3rd cylinder and the 4th cylinder to close to the direction of center valve body protrusion, institute
It states the 3rd cylinder and the 4th cylinder is arranged concentrically, the 3rd cylinder diameter is more than the 4th cylinder diameter, the third circle
Second annular groove is formed between tube inner surface and the 4th cylinder outer surface, described the first cylinder is coaxially set with described the 3rd cylinder
It sets, coordinates between described the first cylinder and the 3rd cylinder and the first labyrinth air seals are installed, described the second cylinder and the 4th circle
Cooperation is equipped with the second labyrinth air seals between cylinder；The burning mixture spray-hole, blast injection hole and point
Thermoelectricity mouth triggers first annular groove slot bottom described in the face of hole and is arranged, second annular groove slot bottom described in the 4th circular hole face
Setting.
Further, the burning mixture spray-hole is set side by side with 5, and the blast injection hole is set side by side
3 are equipped with, ignition electric nozzle triggering hole is set side by side with 2.
Further, the bearing is ball bearing.
The beneficial effects of the invention are as follows：
1, elbow type multi-pipe impulse detonation engine provided by the invention when driving motor rotates, drives detonation engine
Main axis, detonation engine main shaft drive detonation tube to rotate by multi-orifice valve, and detonation tube is solid by the first detonation tube terminal pad
Fixed connection can preferably ensure that detonation tube is rotated along detonation engine main-shaft axis always, preferably between guarantee detonation tube
Relative position, improve the reliability and stability of entire engine.In use, explosive gas mixing pipe road component passes through multi-orifice valve
It is passed through explosive mixed gas to pinking tube cavity, then detonation engine main shaft drives detonation tube to turn to ignition electric nozzle triggering hole, makes
It obtains ignition electric nozzle to light a fire to the explosive mixed gas in pinking tube cavity, carries out triggering detonation, after pinking, detonation engine main shaft
Continue to drive detonation tube rotation, and be exhausted, air pipe line component is into detonation tube when turning to blast injection hole
Air is passed through in chamber, to pinking tube cavity carry out scavenging, later detonation engine main shaft continue drive detonation tube turn to it is flammable
Mixed gas spray-hole, explosive gas mixing pipe road component are passed through explosive mixed gas into pinking tube cavity, and it is quick-fried to repeat the above process realization
Shake the entire On The Cycle Working Process of engine.By the rotating speed and explosive gas mixing pipe road component, air hose that adjust driving motor
The operating frequency of road component and firing cable can solve the problems, such as detonation engine air inlet, igniting, the uncoordinated association of scavenging, with
And the problem that engine operating frequencies are low.Simultaneously in detonation engine main shaft drives detonation tube rotation process, terminate from pinking
During being passed through combustion gas into detonation tube again, detonation tube can preferably radiate.It can be with effective solution pinking
The problem that combustion knock pipe thermic load is big, radiating efficiency is low.
2, the first detonation tube terminal pad is disk, can be preferably fixed to detonation tube, be set as disk and be conducive to
Rotor balancing, rotor refers to the rotatable structure that detonation tube and detonation engine main shaft also have terminal pad to form here, is carried
The reliability of high detonation tube rotation process.
3, it is provided with the second detonation tube terminal pad, the first detonation tube terminal pad can be assisted to carry out detonation tube further solid
It is fixed, improve stability of the detonation tube in rotation process.
4, multi-orifice valve right end cap can rotate, and pinking tube end is fixedly mounted on right end cap, and right end cap drives detonation tube
Rotation passes through gas nozzle, ignition electric nozzle and air jet system, is passed through explosive mixed gas to pinking tube cavity respectively successively,
Then igniting triggering, expanded exhaust finally carry out scavenging using air jet system to the remaining gas in pinking tube cavity,
Detonation tube can share a set of gas nozzle, ignition electric nozzle and air jet system, avoid every during rotation work
Detonation tube is equipped with air inlet, igniting, scavenging caused by a set of gas nozzle, ignition electric nozzle and air jet system and does not assist
Coordinate problem and the low problem of engine operating frequencies.Structure can preferably be simplified simultaneously, mitigate weight, realization is started
The optimum performance of machine improves detonation tube radiating efficiency, reduces the thermic load of detonation tube.
5, multi-orifice valve carry the first labyrinth air seals and the second labyrinth air seals, can effectively reduce gas nozzle,
Windage loss at air jet system.
6, four or the six roots of sensation is arranged in detonation tube, and detonation tube can be sprayed with shared gas nozzle, ignition electric nozzle and air
The gas supply ignition system that device is constituted, simplifies engine structure and improves efficiency.Multi-orifice valve can drive pinking simultaneously
Pipe rotates, and is also advantageous for detonation tube heat dissipation, and the only ability ignition when detonation tube rotates to ignition location again passes through control
The rotating speed of driving motor can change the heat dispersal situations of detonation tube.
7, detonation tube intake process needs time longest, so setting is there are five burning mixture spray-hole, when scavenging
Between it is shorter, there are three blast injection hole, the igniting triggered time is most short for setting, so there are two ignition electric nozzles to trigger for setting
Hole, in this way setting have considered detonation tube in the course of work and principle of rotation pinking process, can preferably improve quick-fried
Shake the performance of engine.
8, burning mixture spray-hole, blast injection hole and ignition electric nozzle triggering hole are spaced setting, quick-fried
After shaking pipe igniting triggering pinking, detonation tube is turned to blast injection hole by ignition electric nozzle triggering hole and is sprayed by compressed air
It during perforation turns to burning mixture spray-hole, can preferably radiate, reduce the thermic load of detonation tube, to prolong
The service life of long detonation tube.
9, ball bearing structure is simple, easy to use, can better meet use demand.
Description of the drawings
Fig. 1 is the structural schematic diagram of the elbow type multi-pipe impulse detonation engine described in the specific embodiment of the invention.
Fig. 2 is the structure enlargement diagram of multi-orifice valve in Fig. 1.
Fig. 3 is the right view that multi-orifice valve removes right end cap in Fig. 2.
Fig. 4 is the structural schematic diagram of the first detonation tube terminal pad in Fig. 1.
Fig. 5 is the course of work of the elbow type multi-pipe impulse detonation engine described in the specific embodiment of the invention with timely
Between distribution diagram, wherein a is inlet period, and b is the duration of ignition, and c is evacuation time, and d is the scavenging time.
Specific implementation mode
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
As Figure 1-Figure 5, a kind of elbow type multi-pipe impulse detonation engine, including driving motor 1 and driving motor 1
The detonation engine main shaft 3 and at least two detonation tubes 18,18 axis of the detonation tube and institute that output shaft 2 is fixedly and coaxially connected
It states 3 axis of detonation engine main shaft to be arranged in parallel, the detonation tube 18 is along 3 axis of detonation engine main shaft circumferentially in radiation
Shape is uniformly arranged, and 18 axis of the detonation tube to detonation engine main-shaft axis 3 apart from consistent, further include described for connecting
First detonation tube terminal pad 16 of detonation tube 18,18 axis of detonation tube described in 16 face of the first detonation tube terminal pad vertically pass through
The first circular hole 161 for being equipped with and matching with 18 diameter of the detonation tube is worn, the detonation tube 18 is fixedly mounted on described first
In circular hole 161；The detonation engine main shaft 3 drives the detonation tube 18 around the detonation engine main shaft 3 by multi-orifice valve
Axis rotates, and one end of driving motor 1 described in the multi-orifice valve face is provided with explosive gas mixing pipe road component 5, air pipe line group
Part 6 and firing cable 4, the multi-orifice valve are fixedly connected back to the side of the driving motor 1 with 18 end of the detonation tube, institute
18 end of detonation tube is stated to extend to inside the multi-orifice valve across the multi-orifice valve.
Certainly when it is implemented, the pre-mixing gas combustion that is passed through to detonation tube of explosive gas mixing pipe road component with each lead into fuel with
Oxidant all has effect same, therefore two ways belongs to invention which is intended to be protected.
In the present embodiment, when it is implemented, the air that air pipe line component is passed through to blast injection hole can equally replace
It is changed to corresponding inert gas, therefore the scheme for being passed through inert gas progress scavenging also belongs to the scope of the present invention.
In the present embodiment, when it is implemented, can turbine or compressor and whirlpool be replaced with the motor in this programme
Wheel combination, i.e. engine spindle end detonation tube outlet setting turbine, detonation tube rotation is driven with turbine；Or front-end of spindle original with
Motor main shaft junction is changed to connect with compressor, engine spindle end detonation tube outlet setting turbine, with compressor whirlpool
Wheel combination driving detonation tube rotates and provides compressed air for engine, to complete cycle of engine work, belongs to the present invention
Scope of the claimed.
In the present embodiment, when it is implemented, the detonation tube 18 can be arranged more, it is claimed to belong to the present invention
Range.
In the present embodiment, the first detonation tube terminal pad 16 and the second detonation tube terminal pad 17 are disks, in specific implementation
First detonation tube terminal pad 16 and the second detonation tube terminal pad 17 are set as triangle or other shapes, increase terminal pad
Number changes itself and detonation tube relative position, belongs to invention which is intended to be protected.
In the present embodiment, the first detonation tube terminal pad 16 is disk, the disc centre and the detonation engine
3 face of main shaft is arranged.
Further include the second detonation tube terminal pad 17 in the present embodiment, the second detonation tube terminal pad 17 and described first
16 structure of detonation tube terminal pad is consistent and face is arranged at intervals on the first detonation tube terminal pad 16 back to the driving motor 1
Side, the detonation tube 18 is fixedly mounted in the second detonation tube terminal pad 17 and 18 end of detonation tube passes through described the
Extend outwardly setting after two detonation tubes, 17 terminal pad.
In the present embodiment, the multi-orifice valve includes left end cap 7, right end cap 14 and is arranged in left end cap 7 and right end cap 14
Between center valve body 11, the left end cap 7 is fixedly connected with described 11 one end of center valve body, runs through among the left end cap 7
It is provided with the second circular hole, the second circular hole is provided through third circular hole 19, the pinking hair described in 11 face of center valve body
Motivation main shaft 3 is fixedly mounted on by bearing 13 in the third circular hole 19 after passing through second circular hole, and the pinking is started
The one end of owner's axis 3 far from the driving motor 1 is fixedly mounted on the right end cap 14；The left end cap 7 and center valve body
11 faces are provided through burning mixture spray-hole 22, blast injection hole 23 and ignition electric nozzle triggering hole 20, institute
State burning mixture spray-hole 22, blast injection hole 23 and ignition electric nozzle triggering hole 20 and be spaced setting, it is described can
22 center of circle of combustion mixed gas spray-hole, 23 center of circle of blast injection hole and ignition electric nozzle triggering 20 center of circle of hole be arranged at
Second circular hole is on the same annulus in the center of circle and the circle diameter and 18 axis of detonation tube are between the 3 of detonation engine main-shaft axis
Distance is consistent, and 22 diameter of burning mixture spray-hole, 23 diameter of blast injection hole and ignition electric nozzle trigger hole
20 diameter dimensions are respectively less than 18 diameter dimension of the detonation tube, burning mixture spray-hole 22 on the center valve body 11,
Blast injection hole 23 and ignition electric nozzle triggering hole 20 are equipped with gas nozzle 8, air spray to 14 direction of right end cap respectively
Injection device 10 and ignition electric nozzle 9, the gas nozzle 8, air jet system 10 and ignition electric nozzle 9 respectively with it is described explosive
Gas mixing pipe road component 5, air pipe line component 6 and the connection setting of firing cable 4；Third circular hole passes through described in 14 face of the right end cap
It wears and is equipped with the 4th circular hole that diameter matches with 18 diameter of detonation tube, 18 end of the detonation tube is fixedly mounted on the described 4th
In circular hole and 18 end of detonation tube approaches after passing through the 4th circular hole with 11 right side of center valve body；
The surface of right end cap described in 11 face of center valve body is provided with the first circle to close to the direction of right end cap protrusion
Cylinder and the second cylinder, described the first cylinder and the second cylinder are arranged concentrically, and the first cylinder diameter dimension is more than described second
Drum diameter size forms first annular groove between the first cylinder inner surface and the second cylinder outer surface；It is described
The surface of center valve body described in right end cap face is provided with the 3rd cylinder and the 4th cylinder to close to the direction of center valve body protrusion,
Described the 3rd cylinder and the 4th cylinder are arranged concentrically, and the 3rd cylinder diameter is more than the 4th cylinder diameter, the third
Second annular groove is formed between cylinder inner surface and the 4th cylinder outer surface, described the first cylinder and described the 3rd cylinder are coaxial
Setting, is equipped with the first labyrinth air seals, described the second cylinder and the 4th between described the first cylinder and the 3rd cylinder
The second labyrinth air seals are equipped between cylinder；The burning mixture spray-hole 22, blast injection hole 23
And first annular groove slot bottom described in ignition electric nozzle triggering 20 face of hole is arranged, the second annular described in the 4th circular hole face
Groove slot bottom is arranged.Further, the first labyrinth air seals and the second labyrinth air seals can be replaced honeycomb obturage, stone
Ink is obturaged, and invention which is intended to be protected is also belonged to.
In the present embodiment, the burning mixture spray-hole 22 is set side by side with 5, the blast injection hole 23
3 are set side by side with, ignition electric nozzle triggering hole 20 is set side by side with 2.Certainly when it is implemented, burning mixture sprays
Perforation, blast injection hole and ignition electric nozzle triggering Kong Junke are arbitrarily arranged multiple, and the diameter in hole and shape are equal
It can arbitrarily be arranged, belong to invention which is intended to be protected.
In the present embodiment, the bearing 13 is ball bearing.Certainly when it is implemented, increasing ball bearing number or change
It replaces with stick roller bearing in the position of multi-orifice valve axial direction, by ball bearing, belongs to invention which is intended to be protected.
The beneficial effects of the invention are as follows：
1, elbow type multi-pipe impulse detonation engine provided by the invention when driving motor 1 rotates, drives detonation engine
Main shaft 3 rotates, and detonation engine main shaft 3 drives detonation tube 18 to rotate by multi-orifice valve, and detonation tube 18 is connected by the first detonation tube
It connects disk 16 to be fixedly connected, can preferably ensure that detonation tube 18 is rotated along 3 axis of detonation engine main shaft always, preferably ensure
Relative position between detonation tube 18 improves the reliability and stability of entire engine.In use, explosive gas mixing pipe road group
Part 5 is passed through explosive mixed gas by multi-orifice valve to pinking tube cavity, and then detonation engine main shaft 3 drives detonation tube 18 to turn to a little
Thermoelectricity mouth triggers hole 20 so that ignition electric nozzle 9 lights a fire to the explosive mixed gas in pinking tube cavity, carries out triggering detonation, pinking knot
Shu Hou, detonation engine main shaft continue to drive detonation tube rotation, and be exhausted, when turning to 23 space-time of blast injection hole
Air pipe component 6 is passed through air into 18 inner cavity of detonation tube, carries out scavenging to pinking tube cavity, later detonation engine main shaft 3
Continue that detonation tube 18 is driven to turn to burning mixture spray-hole 22, explosive gas mixing pipe road component 5 is into 18 inner cavity of detonation tube
It is passed through explosive mixed gas, repeats the above process the entire On The Cycle Working Process for realizing detonation engine.By adjusting driving motor 1
The operating frequency of rotating speed and explosive gas mixing pipe road component 5, air pipe line component 6 and firing cable 4 can solve pinking and start
The problem of machine air inlet, igniting, scavenging uncoordinated association and the low problem of engine operating frequencies.Simultaneously in detonation engine master
Axis 3 drives in 18 rotation process of detonation tube, terminates from pinking to during being passed through combustion gas into detonation tube again, detonation tube 18
It can preferably radiate.It can be with effective solution detonation engine detonation tube thermic load is big, radiating efficiency is low problem.
2, the first detonation tube terminal pad 16 is disk, can be preferably fixed to detonation tube, it is advantageous to be set as disk
In rotor balancing, the reliability of 18 rotation process of detonation tube is improved.
3, it is provided with the second detonation tube terminal pad 17, can assist the first detonation tube terminal pad 16 to detonation tube 18 into traveling
One step is fixed, and stability of the detonation tube 18 in rotation process is improved.
4, multi-orifice valve right end cap 14 can rotate, and 18 end of detonation tube is fixedly mounted on right end cap 14,14 band of right end cap
Dynamic detonation tube 18 rotates, and passes through gas nozzle 8, ignition electric nozzle 9 and air jet system 10 successively, respectively into 18 pipe of pinking
Chamber is passed through explosive mixed gas, then igniting triggering, expanded exhaust, finally utilizes air jet system 10 to surplus in pinking tube cavity
Remaining gas carries out scavenging, detonation tube 18 during rotation work, can share a set of gas nozzle 8, ignition electric nozzle 9 and
Air jet system 10 avoids every detonation tube 18 from being equipped with a set of gas nozzle 8, ignition electric nozzle 9 and air injection dress
Set the problem that the uncoordinated association's problem of air inlet, igniting, scavenging and engine operating frequencies are low caused by 10.It simultaneously can be more
Good simplification structure mitigates weight, realizes the optimum performance of engine, improves detonation tube radiating efficiency, reduces the heat of detonation tube
Load.
5, multi-orifice valve carry the first labyrinth air seals and the second labyrinth air seals, can effectively reduce gas nozzle 8,
Windage loss at air jet system 10.
6, four or the six roots of sensation is arranged in detonation tube 18, and detonation tube 18 can be with shared gas nozzle 8, ignition electric nozzle 9 and sky
The gas supply ignition system that gas spraying device 10 is constituted, simplifies engine structure and improves efficiency.Multi-orifice valve can be with simultaneously
It drives detonation tube 18 to rotate, is also advantageous for the heat dissipation of detonation tube 18, only the ability point when detonation tube 18 rotates to ignition location again
Fire burning, the rotating speed by controlling driving motor 1 can change the heat dispersal situations of detonation tube 18.
7,18 intake process of detonation tube needs time longest, so there are five burning mixture spray-holes 22 for setting, sweeps
The gas time is shorter, and there are three blast injection holes 23 for setting, and the igniting triggered time is most short, so there are two ignition electric nozzles for setting
Hole 20 is triggered, the course of work and principle for having considered detonation tube 18 in rotation pinking process are set in this way, it can be more preferable
Raising detonation engine performance.
8, burning mixture spray-hole 22, blast injection hole 22 and ignition electric nozzle triggering hole 20 are spaced and set
Set, detonation tube 18 light a fire triggering pinking after, detonation tube by ignition electric nozzle triggering hole 20 turn to blast injection hole 23 with
And during by blast injection hole 23 turning to burning mixture spray-hole 22, can preferably radiate, it reduces quick-fried
The thermic load for shaking pipe 18, to extend the service life of detonation tube 18.
9, ball bearing 13 is simple in structure, easy to use, can better meet use demand.
The operation principle of the present apparatus is following (by taking single detonation tube as an example)：
Driving motor 1 acts, and detonation engine main shaft 3 is driven to rotate, and detonation engine main shaft 3 passes through multi-orifice valve right end cap
14 drive detonation tube 18 to be rotated around 3 axis of detonation engine main shaft；18 end of detonation tube turns to burning mixture spray-hole
22 are inflated, and spray explosive mixed gas into detonation tube 18 by gas nozzle 8, and then detonation tube 18 is rotated further to ignition power
Mouth triggering hole 20 is lighted a fire, and ignition electric nozzle triggers hole 20 and touched the explosive mixed gas igniting in detonation tube 18 by ignition electric nozzle 9
Hair starts pinking, and then detonation tube 18 is rotated further, and turns to ignition electric nozzle triggering hole 20 in 18 end of detonation tube and compression is empty
When between gas blowout perforation 23, one end that detonation tube 18 is located on the outside of multi-orifice valve is exhausted, then the rotation of detonation tube 18 to compression
Air jet hole 23, the air jet system 10 in blast injection hole 23 sprays air to 18 inner cavity of detonation tube, to pinking
Residual gas carries out scavenging after burning in pipe 18, and after scavenging, detonation tube 18 continues rotation to burning mixture spray-hole
22 positions are inflated, and thus complete an action process of entire detonation engine, and driving motor 1 constantly rotates, constantly weight
Multiple action process described above, realizes the entire On The Cycle Working Process of detonation engine.
In the present invention, it is to be understood that "upper", "lower" etc. are to be based on the orientation or positional relationship shown in the drawings, only
It is for convenience of description of the present invention and simplification of the description, rather than to indicate or imply and must have a particular orientation, with specific side
Position construction and operation, therefore be not considered as limiting the invention.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of elbow type multi-pipe impulse detonation engine, including driving motor, it is fixedly and coaxially connected with driving motor output shaft
Detonation engine main shaft and at least two detonation tubes, the detonation tube axis it is parallel with the detonation engine main-shaft axis
Setting, the detonation tube is along the circumferentially radially distributed setting of the detonation engine main-shaft axis, and the detonation tube axis
It is consistent to detonation engine main-shaft axis distance, which is characterized in that further include the first detonation tube for connecting the detonation tube
Terminal pad, detonation tube axis described in the first detonation tube terminal pad face, which extends vertically through, to be provided with and the pinking pipe diameter phase
Matched first circular hole, the detonation tube are fixedly mounted in first circular hole；The detonation engine main shaft passes through porous
Valve drives the detonation tube to be rotated around the detonation engine main-shaft axis, one end of driving motor described in the multi-orifice valve face
Be provided with explosive gas mixing pipe road component, air pipe line component and firing cable, the multi-orifice valve back to the driving motor one
Side is fixedly connected with the pinking tube end, and the pinking tube end is extended to across the multi-orifice valve inside the multi-orifice valve.
2. elbow type multi-pipe impulse detonation engine according to claim 1, which is characterized in that the detonation tube is provided with
Four or the six roots of sensation.
3. elbow type multi-pipe impulse detonation engine according to claim 1, which is characterized in that first detonation tube connects
It is disk to connect disk, and the disc centre is arranged with the detonation engine main shaft face.
4. elbow type multi-pipe impulse detonation engine according to claim 1, which is characterized in that further include the second detonation tube
Terminal pad, described in the second detonation tube terminal pad and first detonation tube connection dish structure is consistent and face is arranged at intervals on
For first detonation tube terminal pad back to the side of the driving motor, the detonation tube is fixedly mounted on the second detonation tube connection
On disk and pinking tube end pass through the second detonation tube terminal pad after extend outwardly setting.
5. elbow type multi-pipe impulse detonation engine according to claim 1, which is characterized in that the multi-orifice valve includes a left side
End cap, right end cap and the center valve body being arranged between left end cap and right end cap, the left end cap and the center valve body one
End is fixedly connected, and the second circular hole is provided through among the left end cap, and the second circular hole runs through described in the center valve body face
It is provided with third circular hole, the detonation engine main shaft is fixedly mounted on the third after second circular hole by bearing
In circular hole, the described one end of detonation engine main shaft far from the driving motor is fixedly mounted on the right end cap；The left side
End cap and center valve body face are provided through burning mixture spray-hole, blast injection hole and ignition electric nozzle triggering
Hole, the burning mixture spray-hole, blast injection hole and ignition electric nozzle triggering hole are spaced setting, described flammable
The mixed gas spray-hole center of circle, the blast injection hole center of circle and the ignition electric nozzle triggering hole center of circle are arranged at the second circular hole
For on the same annulus in the center of circle and the circle diameter and detonation tube axis to distance between detonation engine main-shaft axis consistent, institute
It states burning mixture nozzle inside diameter, blast injection bore dia and ignition electric nozzle triggering bore dia size and is respectively less than institute
Detonation tube diameter dimension is stated, the burning mixture spray-hole, blast injection hole on the center valve body and ignition power
Mouth triggering hole is equipped with gas nozzle, air jet system and ignition electric nozzle to right end cap direction respectively, the gas nozzle,
Air jet system and ignition electric nozzle are connect with the explosive gas mixing pipe road component, air pipe line component and firing cable respectively
Setting；Third circular hole described in the right end cap face is provided through the 4th circular hole that diameter matches with pinking pipe diameter, institute
State pinking tube end be fixedly mounted in the 4th circular hole and the pinking tube end pass through after the 4th circular hole with it is described
Center valve body right side approaches；
The surface of right end cap described in the center valve body face is provided with the first cylinder and the to close to the direction of right end cap protrusion
Two cylinders, described the first cylinder and the second cylinder are arranged concentrically, and it is straight that the first cylinder diameter dimension is more than described the second cylinder
Diameter size forms first annular groove between the first cylinder inner surface and the second cylinder outer surface；The right end cap
The surface of center valve body described in face is provided with the 3rd cylinder and the 4th cylinder to close to the direction of center valve body protrusion, and described the
Three cylinders and the 4th cylinder are arranged concentrically, and the 3rd cylinder diameter is more than the 4th cylinder diameter, in described the 3rd cylinder
Second annular groove is formed between surface and the 4th cylinder outer surface, described the first cylinder is coaxially disposed with described the 3rd cylinder,
Be equipped with the first labyrinth air seals between described the first cylinder and the 3rd cylinder, described the second cylinder and the 4th cylinder it
Between be equipped with the second labyrinth air seals；The burning mixture spray-hole, blast injection hole and ignition power
Mouth triggers first annular groove slot bottom setting described in the face of hole, and second annular groove slot bottom is set described in the 4th circular hole face
It sets.
6. elbow type multi-pipe impulse detonation engine according to claim 5, which is characterized in that the burning mixture
Spray-hole is set side by side with 5, and the blast injection hole is set side by side with 3, and ignition electric nozzle triggering hole is set side by side
It is equipped with 2.
7. elbow type multi-pipe impulse detonation engine according to claim 5, which is characterized in that the bearing is ball axis
It holds.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810212794.6A CN108361125B (en) | 2018-03-15 | 2018-03-15 | Rotary pipe type multitube pulse detonation engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810212794.6A CN108361125B (en) | 2018-03-15 | 2018-03-15 | Rotary pipe type multitube pulse detonation engine |
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| CN108361125A true CN108361125A (en) | 2018-08-03 |
| CN108361125B CN108361125B (en) | 2023-05-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153569A (en) * | 2021-04-27 | 2021-07-23 | 西北工业大学 | Multi-pipe pulse detonation engine capable of achieving stable exhaust |
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| US5345758A (en) * | 1993-04-14 | 1994-09-13 | Adroit Systems, Inc. | Rotary valve multiple combustor pulse detonation engine |
| CN101806260A (en) * | 2010-03-04 | 2010-08-18 | 西北工业大学 | Multitube parallel pulse detonation combustion chamber and ignition detonation method thereof |
| US20110302908A1 (en) * | 2010-06-15 | 2011-12-15 | Soheil Farshchian | Multitube valveless pulse detonation engine |
| CN106801650A (en) * | 2017-01-12 | 2017-06-06 | 西北工业大学 | A kind of pressure-actuated self adaptation pulse-knocking engine valve system |
| CN208010478U (en) * | 2018-03-15 | 2018-10-26 | 张俊良 | Elbow type multi-pipe impulse detonation engine |
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- 2018-03-15 CN CN201810212794.6A patent/CN108361125B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5345758A (en) * | 1993-04-14 | 1994-09-13 | Adroit Systems, Inc. | Rotary valve multiple combustor pulse detonation engine |
| CN101806260A (en) * | 2010-03-04 | 2010-08-18 | 西北工业大学 | Multitube parallel pulse detonation combustion chamber and ignition detonation method thereof |
| US20110302908A1 (en) * | 2010-06-15 | 2011-12-15 | Soheil Farshchian | Multitube valveless pulse detonation engine |
| CN106801650A (en) * | 2017-01-12 | 2017-06-06 | 西北工业大学 | A kind of pressure-actuated self adaptation pulse-knocking engine valve system |
| CN208010478U (en) * | 2018-03-15 | 2018-10-26 | 张俊良 | Elbow type multi-pipe impulse detonation engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113153569A (en) * | 2021-04-27 | 2021-07-23 | 西北工业大学 | Multi-pipe pulse detonation engine capable of achieving stable exhaust |
| CN113153569B (en) * | 2021-04-27 | 2022-10-28 | 西北工业大学 | Multi-pipe pulse detonation engine capable of stably exhausting |
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| CN108361125B (en) | 2023-05-23 |
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