CN207229258U - A kind of birotor punching engine - Google Patents

Abstract

The utility model proposes a kind of birotor punching engine, it includes：Main shaft, double hollow cylinder wind wheel, rotary case, casing and disk covers, casing matches somebody with somebody the aspirating unit for being combined into cylinder type with double hollow cylinder wind wheel air-tight movables, rotary case is equipped with wind wheel chamber, wind wheel intracavitary is equipped with double hollow cylinder wind wheels, there are at least two groups of flow channels on rotary case, flow channel includes punching press chamber and Lavalle pipeline, and disk cover adaptation seals rotary case, flame injection device is provided with disk cover.Its advantage is：Pass through wind wheel intracavitary first time imperfect combustion, air-flow is set to reach supersonic condition, realize punching course, and using rotary case and the direction of rotation of wind wheel during the work time is adjusted, realize birotor convection current, engine machine part is few, simple in structure, make fuel combustion more abundant by twice combustion, the thermal efficiency is high, pollution is small, solves the deficiency of available engine, the existing engine of can effectively replace.

Description

A kind of birotor punching engine

Technical field

Technical field of engines is the utility model is related to, particularly relates to a kind of birotor punching engine.

Background technology

Punching engine slows down after mainly entering engine using high-speed flow, makes a kind of engine of supercharging air, Punching engine cost simple in structure is low, small in volume, the thermal efficiency are high, thrust-weight ratio is big, is current power density and sexual valence Than optimal engine, but it the shortcomings that be that high-speed flow is needed to reach supersonic speed condition and can just worked normally, therefore this Kind engine can be used only in specific space industry at present.

The internal combustion engine of every field civilian at present, the thermal efficiency is low, and exhaust emission is serious caused by imperfect combustion, and Most of engine structure is complicated, volume weight is big, and particularly problem is more obvious on powerful engine.

Utility model content

The utility model is exactly to solve problems of the prior art, proposes a kind of simple in structure, small weight of size Gently, the thermal efficiency is high, high-power birotor punching engine.

What the technical solution of the utility model was realized in：

A kind of birotor punching engine, including main shaft, double hollow cylinder wind wheel, rotary case, casing and disk covers；

Double hollow cylinder wind wheels include interior hollow cylinder, external hollow cylinder, stent and blade, and the blade is evenly distributed on On the outer wall of the external hollow cylinder, the interior hollow cylinder is fixedly connected with the external hollow cylinder by the stent, in the phase The external hollow cylinder between adjacent two blades is equipped with air admission hole, and double hollow cylinder wind wheels are integrally formed;

It is wind wheel chamber among the rotary case, the wind wheel chamber is used for assembling double hollow cylinder wind wheels, in the turntable There are at least two groups of flow channels on body, the flow channel includes punching press chamber and Lavalle pipeline；The beginning of the punching press chamber with it is described Wind wheel chamber connects, and end is connected with the Lavalle pipeline, and the cavity of the punching press chamber is gradually reduced by beginning to end；It is described Lavalle pipeline first half is combustion chamber, and the combustion chamber is contracted to a narrow larynx from large to small, after the Lavalle pipeline Half portion is divided into tail gas chamber, and the tail gas chamber changes from small to big at narrow larynx to be expanded outwardly；The direction of the Lavalle pipeline with it is described Main shaft is axially vertical；

The casing is rotatably assorted with external hollow cylinder sealing, the casing and double hollow cylinder wind wheel composition cylinders The aspirating unit of type structure, the air admission hole are connected with the aspirating unit, and the aspirating unit inside center assembles the main shaft, institute State main shaft to be fixed on bearing, bearing is embedded in the rotary case central interior, and double hollow cylinder wind wheels are fixed on the master It is adapted on axis and with the rotary case, the aspirating unit end passes through bearing seal；

The disk cover adaptation seals the rotary case, and is fixed to one structure with the rotary case, the turntable At least two flame injection devices are covered, the flame injection device is positioned close to the wind wheel chamber of the combustion chamber Interior, the flame injection device is to the wind wheel intracavitary flame.

There is passage of flame on the rotary case, described passage of flame one end connects the combustion chamber, described in other end connection The band of position of flame injection device face described in wind wheel chamber；

Adjusting mechanism is additionally provided with the rotary case, the adjusting mechanism is used for adjusting the rotary case and main shaft rotation The direction turned, and adjust the rate conversion ratio between the main shaft and the rotary case.

There is an aeroscopic plate at the birotor punching engine, the rotary case center, the aeroscopic plate it is in the arc-shaped and with The turntable body by integral forming, the inner wall of the aeroscopic plate and the external hollow cylinder is closed to be rotatably assorted；By aeroscopic plate with into The cooperation of stomata, aeroscopic plate, blade and wind wheel cavity wall form a closed space of calming the anger, and fuel gas mixture is in space of calming the anger Lighted by flame injection device, double hollow cylinder wind wheels are accelerated to supersonic condition by the huge interior energy of exploding gas.

The birotor punching engine, is provided with unidirectional free-air diffuser on the disk cover, the air into The air inlet of air flue is in communication with the outside, and gas outlet is connected with the punching press chamber, has time at the air inlet of the free-air diffuser Gas drainage plate；Ambient atmos enter punching press chamber from free-air diffuser, and the oxygen of abundance is provided for second of burning in combustion chamber.

The birotor punching engine, sets nozzle on the casing, and the nozzle is connected with fuel feed system, The nozzle is to the aspirating unit spray fuel.

The birotor punching engine, has at least two axial-flow type wind wheels, the axial-flow type wind in the aspirating unit Wheel is fixed on the main shaft；Axial-flow type wind wheel provides air-source for engine.

The birotor punching engine, the main shaft use Split type structure, the adjacent two axial-flow type wind wheels it Between be equipped with switching mechanism, the switching mechanism can adjust rate conversion ratio and the direction between split axis；Divided by adjusting Body switching mechanism, controls the speed and throughput of inlet air flow.

The blade and the stent curl, it is spiral to the direction for being conducive to double hollow cylinder wind wheel rotations.

The birotor punching engine, the flow channel are punching press chamber, the punching press chamber beginning and the wind wheel chamber It is connected, the cavity of the punching press chamber is gradually reduced, and the punching press chamber end is connected with the Lavalle pipeline, the Lavalle Pipeline is arranged on outside the rotary case, and the Lavalle duct orientation and the main shaft are axially in parallel；By Lavalle pipeline Direction setting is axially in parallel with main shaft, and engine will produce huge thrust backward, and the utility model will be used as fan at this time Jet engine promotes carrier high-speed motion.

The birotor punching engine, necking control structure, the necking control knot are provided with the casing mouth Structure is used for controlling air inflow.

The beneficial effects of the utility model are：By wind wheel intracavitary first time imperfect combustion, air-flow is set to reach supersonic speed State, realizes punching course, and using rotary case and the direction of rotation of wind wheel during the work time is adjusted, realizes birotor pair Stream, by punching press Combustion Process Control in peak efficiency；The utility model engine machine part is few, simple in structure, by twice Burning makes fuel combustion more abundant, and the thermal efficiency is high, pollution is small, solves the deficiency of available engine, the existing work of can effectively replace Plug engine.

Brief description of the drawings

It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the utility model Example is applied, for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings；

Fig. 1 is double hollow cylinder wind wheel structure schematic diagrames；

Fig. 2 is birotor punching engine schematic diagram；

Fig. 3 is the overall structure diagram of the utility model；

Fig. 4 is the jet-propelled structure diagram of the utility model.

In figure:1 is casing；2 be main shaft；3 be axial-flow type wind wheel；4 be nozzle；5 be fuel feed system；6 be rotary case； 7 be disk cover；8 be adjusting mechanism；9 be aspirating unit；10 be power output wheel；11 be double hollow cylinder wind wheels；12 be punching press chamber；13 It is combustion chamber；14 be tail gas chamber；15 be aeroscopic plate；16 be interior hollow cylinder；17 be external hollow cylinder；18 be air admission hole；19 be wind wheel Chamber；20 be stent；21 be flame injection device；22 be passage of flame；23 be free-air diffuser；24 be air conduction plate；25 are Necking control structure；26 be fan.

Embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of making the creative labor All other embodiments obtained, shall fall within the protection scope of the present invention.

As shown in Fig. 1 ~ Fig. 4, the birotor punching engine that is proposed in the utility model mainly includes main shaft 2, double hollow The interior energy of engine is converted into machinery by cylinder wind wheel 11, rotary case 6, casing 1 and disk cover 7, main shaft 2 as power output shaft It can export, and the line shaft as engine start.

Double hollow cylinder wind wheels 11 include interior hollow cylinder 16, external hollow cylinder 17, stent 20 and blade, blade and are evenly distributed on On external hollow barrel, as shown in figure 3,17 length of external hollow cylinder is more than interior hollow cylinder 16, interior hollow cylinder 16 passes through trapezoid support 20 It is fixed on top half in external hollow cylinder 17, the external hollow cylinder 17 between adjacent two blade is equipped with air admission hole 18, air admission hole 18 For through hole, and it is arranged on 17 the latter half of external hollow cylinder.Double hollow cylinder wind wheels 11 are an integral structure, and pass through key with main shaft 2 Connection is fixed；Preferably, it is helical structure to set blade and stent 20, and to being conducive to, the rotating direction of wind wheel is spiral.

As shown in Figure 2 and Figure 3, rotary case 6 is equipped with wind wheel chamber 19, and wind wheel chamber 19 is used for assembling the double hollow of size adaptation Cylinder wind wheel 11, rotary case 6 coordinate centrally through sealing bearing and the activity of main shaft 2；Rotary case 6 is provided centrally with two circular shapes Aeroscopic plate 15, aeroscopic plate 15 coordinates with the air admission hole 18 on external hollow cylinder 17, in aeroscopic plate 15, leaf in wind wheel rotation process A completely closed space of calming the anger is formed between piece, disk cover 7 and wind wheel cavity wall.Above-mentioned aeroscopic plate 15 is the application structure Preferred embodiment, in specific implementation, can have a variety of alternative solutions, such as set one way stop peturn valve to substitute air guide at air admission hole 18 Plate 15, but check valve is fragile in the case where being chronically at hyperbaric environment, maintenance cost higher, thus those skilled in the art are to this Modification that structure is made, replacement, improvement should all fall into the protection domain of the application.

As shown in Fig. 2, there is the flow channel that supplied gas circulates on rotary case 6, flow channel is at least two and central symmetry, Flow channel is the punching press acting process of high-speed gas, and flow channel includes punching press chamber 12 and Lavalle pipeline configuration, punching press chamber 12 It is the flow channel opened up to double 11 blade direction of rotation of hollow cylinder wind wheel, beginning is connected with wind wheel chamber 19, the chamber of punching press chamber 12 Body is reduced by beginning to the gradual curve in end, and is reduced in end straight line, and end is communicated with Lavalle pipeline first half；Draw The first half of Wa Er pipelines is combustion chamber 13, and the cavity of combustion chamber 13 is contracted to a narrow larynx, Lavalle pipeline from large to small Latter half is tail gas chamber 14, and tail gas chamber 14 changes from small to big at narrow larynx to be expanded outwardly.

The principle of Lavalle pipeline is：For exploding gas when by jet pipe first half, gasmovement follows that " fluid is in pipe During middle movement, the small place's flow velocity in section is big, and section general goal flow velocity is small " principle, therefore air-flow constantly accelerates；When reaching narrow larynx, Flow velocity has been over velocity of sound, and transonic fluid no longer follows that " the small place's flow velocity in section is big, section general goal stream during exercise Speed is small " principle, but on the contrary, section is bigger, flow velocity is faster, therefore the speed of combustion gas stream is further accelerated, and is reached Equivalent to 7-8 times of velocity of sound, this creates the terminal huge thrust, and then main shaft 2 is driven to do work.

It is quick-fried into combustion chamber 13 after high-speed fuel gas mixed gas enters the deceleration pressurization of punching press chamber 12 in the utility model Combustion, exploding gas drive engine acting, therefore adjust Lavalle as needed by producing huge thrust after the pipeline of Lavalle The different jet directions of pipeline, you can realize the multiple use of the application engine.

The lower section of rotary case 6 is provided with adjusting mechanism 8, and adjusting mechanism 8 can adjust rotary case 6 and main shaft 2 as needed Direction of rotation and rotating speed conversion proportion.In engine working process, start when punching press intracavitary induction air flow ratio is between 5~8 times of velocities of sound Engine efficiency highest, therefore in specific implementation, direction of rotation and the rotating speed of rotary case 6 and main shaft 2 can be adjusted according to specific needs, will Punching course is controlled in peak efficiency.

Casing 1 is coupled with disk cover 7 by sealing bearing and rotating, and is matched somebody with somebody with double 11 air-tight movables of hollow cylinder wind wheel and is combined into one The aspirating unit 9 of a cylinder type, 9 end of aspirating unit by bearing seal, i.e., casing 1, interior hollow cylinder 16, external hollow cylinder 17, Rotary case 6 and air admission hole 18 form an one-way gas flow passage.

Disk cover 7, which is used for sealing, coordinates rotary case 6, and is fixed into and is an integral structure with rotary case 6, is set on disk cover 7 Be equipped with least two into wind wheel chamber 19 flame flame injection device 21, flame injection device 21 is arranged on above-mentioned aeroscopic plate 15th, the space segment of calming the anger formed between blade, disk cover 7 and wind wheel cavity wall, flame injection device 21 are in confined space Interior for mixed gas progress first time igniting, the interior energy that imperfect combustion produces promotes wind wheel to accelerate, according to first time burning journey The difference of degree, can drive between reaching subsonic speed ~ 10 times velocity of sound into punching press chamber air-flow.

Free-air diffuser 23 is additionally provided with disk cover 7, free-air diffuser 23 is arranged on disk cover 7 and corresponds to punching press chamber 12 Position, the air inlet of free-air diffuser 23 are in communication with the outside, and gas outlet is connected with punching press chamber 12, there is air conduction at air inlet Plate 24, one way stop peturn valve is provided with gas outlet, and check valve prevents that gas is revealed from free-air diffuser in punching press chamber 12；Air draws Flowing plate 24 introduces air-flow, and the cavity tendency direction of free-air diffuser 23 and 12 interior air-flow direction of punching press chamber to free-air diffuser It is consistent, is conducive to outside air and is mixed with 12 interior air-flow of punching press chamber；Outside air enters punching press chamber through free-air diffuser 23 In 12, oxygen is provided for second of burning.

Passage of flame 22,22 one end of passage of flame connection combustion chamber 13 are provided with rotary case 6, the other end connects above-mentioned wind The space segment of calming the anger of the flame injection device face of chamber is taken turns, flame is introduced combustion chamber 13 by passage of flame 22, is combustion chamber 13 Interior igniting.

Casing 1 is equipped with nozzle 4 and fuel feed system 5, and nozzle 4 is arranged on the end of casing 1, gas in casing end Pressure is big, and combustion gas mixing will faster evenly；Fuel enters aspirating unit 9 by nozzle 4 and is mixed into combustion gas mixing with high-speed flow Thing, adjusts the fuel quantity that nozzle 4 is sprayed into aspirating unit 9 as needed.

9 air inlet parts of aspirating unit are provided with least two axial-flow type wind wheels 3, and axial-flow type wind wheel 3 is fixed on main shaft 2, Air-source is provided for engine；And main shaft 2 uses Split type structure, i.e., split interpreter is equipped between adjacent axial-flow type wind wheel Structure, switching mechanism can adjust rate conversion ratio and the direction between split axis, and then control the compression ratio of charge air flow.

As shown in figure 4, Lavalle pipeline is arranged on outside rotary case, and the jet direction of Lavalle pipeline and 2 axis of main shaft To parallel, exploding gas produces huge thrust backward, and the utility model engine can be used as fan jet engine at this time Promote carrier high-speed motion.Preferably, design 1 bore of casing is gradually reduced, and is conducive to the compression of air-flow；When air inlet flow When big, oxygen content is high in combustion gas mixing gas, and burning degree is violent in wind wheel chamber 19, double 11 velocities of rotation of hollow cylinder wind wheel It hurry up, when air inlet flow is small, oxygen content is low in combustion gas mixing gas, and burning degree is small in wind wheel chamber 19, double hollow cylinders 11 velocity of rotation of wind wheel is slow.In order to control the gas flow rate for entering punching press chamber 12,1 mouthful necking control structure 25 is set in casing, For controlling charge flow rate, and then control throughput.

Preferably, according to specific needs, main shaft 2 may be configured as split axis, the axis and turntable that double hollow cylinder wind wheels 11 drive The axis that body 6 drives independently exports mutually.

Preferably, what rotary case 6, disk cover 7, double hollow cylinder wind wheels 11 were mutually adapted is assembled together, double in order to buffer The air flow pressure at hollow 11 edge of wind wheel, sets the radius of double hollow cylinder wind wheels 11 to be slightly less than the radius of wind wheel chamber 19.

Preferably, above-mentioned all gas circulate road all according to aerodynamic design, are conducive to the circulation of air-flow.

Preferably, passage of flame 22 connects combustion chamber 13 and wind wheel chamber 19 selects nearby, shortens transfer fire distance.

Preferably, to ensure engine work, rotary case 6, double hollow cylinder wind wheels 11 and disk cover 7 are all using super High temperature high-pressure resistant material, according to specific needs, can also offer stomata in combustion chamber 13 and double hollow cylinder wind wheels 11 and use Air film cools down.

What the birotor punching engine course of work of the utility model was realized in：

Accessory power system driving power output wheel 10 rotates, and adjusts nozzle 4 as needed to 9 spray fuel of aspirating unit, Adjust the switching mechanism control air compression ratio between axial-flow type wind wheel 3 as needed, air draught by axial-flow type wind wheel 3 into Enter aspirating unit 9, and the fuel sprayed by nozzle 4 forms fuel gas mixture, combustion gas enters leaf by aspirating unit 9 from air admission hole 18 Wind wheel intracavitary between piece, due to forming a completely closed pressure between aeroscopic plate 15, blade, disk cover 7 and wind wheel cavity wall Headroom, high-speed gas rotate to calm the anger space when, the flame injection device 21 for being arranged on space of calming the anger lights explosion, produce Huge interior energy promotes double hollow cylinder wind wheels 11 to accelerate between the velocity of sound of subsonic speed ~ 10 times, while drives rotary case 6 to rotate, and logical Control inlet air flow is crossed to control oxygen content in space of calming the anger, combustion gas is carried out burning different degrees of for the first time, and then is controlled double 11 rotating speed of hollow cylinder wind wheel；The direction of rotation of rotary case 6 and double hollow cylinder wind wheels 11 according to specific needs, can be also adjusted at the same time, When rotary case 6 is opposite with double 11 direction of rotation of hollow cylinder wind wheel, both form convection current rotor, accelerate into the gas of punching press chamber 12 Stream；When first time, burning was excessively violent, adjustable rotary case 6 is identical with double 11 direction of rotation of hollow cylinder wind wheel, prevents from starting Machine overloads.

The unburned high-speed fuel gas of high temperature and high pressure gas and part through burning for the first time in space of calming the anger, passes through wind wheel chamber 19 edges are mixed into punching press chamber 12, simultaneously because the rotation of rotary case 6, air by free-air diffuser 23 enter punching press chamber with Not sufficiently combusted gas mixing, controls to adjust mechanism 8 as needed, adjusts rotary case 6 and double 11 sides of rotation of hollow cylinder wind wheel To with rotating speed conversion proportion, the mixed gas in punching press chamber 12 is subject to rotary case 6 and double 11 common punching presses of hollow cylinder wind wheel, mixing Gas, which slows down to pressurize, enters combustion chamber 13, and at this moment mixed gas is lighted again by the flame for entering combustion chamber by passage of flame 22 Explosion, exploding gas produce huge thrust by Lavalle pipeline, drive main axis acting.

The jet-propelled birotor punching engine of fan as shown in Figure 4, accessory power system 10 turns of power output wheel of driving It is dynamic, adjust nozzle 4 as needed to 9 spray fuel of aspirating unit, adjust as needed switching mechanism between axial-flow type wind wheel 3 and Necking control structure 25 controls air inflow, and combustion gas enters first time detonation in wind wheel chamber 19 and accelerates, high-speed flow enters punching press Chamber 12 is mixed with outside air, second of the burning in convergent-divergent channel road is entered after the stamped deceleration of chamber 12 pressurization, exploding gas is backward Huge thrust is produced, promotes carrier high-speed motion；The engine is applicable not only to substitute civilian engine, also solves space flight Ramjet propulsion first must be pushed to the problem of velocity of sound could work normally, it can be achieved that autonomous from inactive state by auxiliary power Speed-raising, is more applicable in for aviation field.

As described above, the structure design by varying Lavalle pipeline, it is possible to achieve the multiple use of the utility model, can Civilian engine is effectively substituted, while also widenable to a series of aviation field engines, such as jet engine, fan jet Engine etc. is, it is necessary to be appreciated that, those skilled in the art are not on the premise of creative work is passed through to the utility model Made any modification, replacement, improve and should all fall into the scope of protection of the utility model.

The birotor punching engine of the utility model utilizes wind wheel intracavitary first time imperfect combustion, air-flow is reached super Transonic condition, realizes punching course, and using rotary case and the direction of rotation of wind wheel during the work time is adjusted, realizes double turn Sub- convection current, overcomes punching engine and can be used only in problem on the body of high-speed motion, and twice combustion makes fuel combustion More fully, engine thermal efficiency higher.

The birotor punching engine of the utility model is not only simple in structure, also reduce multistage compressor bring it is at different levels Speed problem, more obvious advantage are can to adjust the different jet directions of Lavalle pipeline as needed, are realized a variety of Purposes；Fuel combustion is abundant, the thermal efficiency is high, simple and environmentally-friendly at the same time, can also effectively replace civilian common automobile, electric power, wheel The engines such as ship, are one much progresses of engine art.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on, should be included in the utility model Protection domain within.

Claims (9)

1. a kind of birotor punching engine, including main shaft, double hollow cylinder wind wheel, rotary case, casing and disk covers, its feature It is：

Double hollow cylinder wind wheels include interior hollow cylinder, external hollow cylinder, stent and blade, and the blade is evenly distributed on described On the outer wall of external hollow cylinder, the interior hollow cylinder is fixedly connected with the external hollow cylinder by the stent, described in adjacent two The external hollow cylinder between blade is equipped with air admission hole, and double hollow cylinder wind wheels are integrally formed;

It is wind wheel chamber among the rotary case, the wind wheel chamber is used for assembling double hollow cylinder wind wheels, on the rotary case There are at least two groups of flow channels, the flow channel includes punching press chamber and Lavalle pipeline；The beginning of the punching press chamber and the wind wheel Chamber connects, and end is connected with the Lavalle pipeline, and the cavity of the punching press chamber is gradually reduced by beginning to end；The Bearing score Your pipeline first half is combustion chamber, and the combustion chamber is contracted to a narrow larynx from large to small, and the Lavalle pipeline is latter half of It is divided into tail gas chamber, the tail gas chamber changes from small to big at narrow larynx to be expanded outwardly；The direction of the Lavalle pipeline and the main shaft It is axially vertical；

The casing is rotatably assorted with external hollow cylinder sealing, the casing and double hollow cylinder wind wheel composition cylinder type knots The aspirating unit of structure, the air admission hole are connected with the aspirating unit, and the aspirating unit inside center assembles the main shaft, the master Axis is fixed on bearing, and bearing is embedded in the rotary case central interior, and double hollow cylinder wind wheels are fixed on the main shaft And be adapted to the rotary case, the aspirating unit end passes through bearing seal；

The disk cover adaptation seals the rotary case, and is fixed to one structure with the rotary case, on the disk cover There are at least two flame injection devices, the flame injection device is positioned close to the wind wheel intracavitary of the combustion chamber, institute Flame injection device is stated to the wind wheel intracavitary flame；

There is passage of flame on the rotary case, described passage of flame one end connects the combustion chamber, and the other end connects the wind wheel The band of position of flame injection device face described in chamber；

Adjusting mechanism is additionally provided with the rotary case, the adjusting mechanism is used for adjusting the rotary case and the main shaft is rotating Direction, and adjust the rate conversion ratio between the main shaft and the rotary case.

2. birotor punching engine according to claim 1, it is characterised in that：There is aeroscopic plate at the rotary case center, The aeroscopic plate it is in the arc-shaped and with the turntable body by integral forming, closed turn of the inner wall of the aeroscopic plate and the external hollow cylinder It is dynamic to coordinate.

3. birotor punching engine according to claim 1, it is characterised in that：It is provided with the disk cover unidirectional Free-air diffuser, the air inlet of the free-air diffuser are in communication with the outside, and gas outlet is connected with the punching press chamber, the air There is air drainage plate at the air inlet of air intake duct.

4. birotor punching engine according to claim 1, it is characterised in that：Nozzle is set on the casing, it is described Nozzle is connected with fuel feed system, and the nozzle is to the aspirating unit spray fuel.

5. birotor punching engine according to claim 1, it is characterised in that：There are at least two axis in the aspirating unit Streaming wind wheel, the axial-flow type wind wheel are fixed on the main shaft.

6. birotor punching engine according to claim 5, it is characterised in that：The main shaft uses Split type structure, Switching mechanism is equipped between the adjacent two axial-flow type wind wheel, the switching mechanism can adjust the rate conversion between split axis Ratio and direction.

7. birotor punching engine according to claim 1, it is characterised in that：The blade and the branch are put up spiral Shape.

8. the birotor punching engine according to claim 1 to 7 any one, it is characterised in that：The flow channel is Punching press chamber, the punching press chamber beginning are connected with the wind wheel chamber, and the cavity of the punching press chamber is gradually reduced, the punching press chamber end End is connected with the Lavalle pipeline, and the Lavalle pipeline is arranged on outside the rotary case, and the Lavalle pipeline side To axially in parallel with the main shaft.

9. birotor punching engine according to claim 8, it is characterised in that：Necking control is provided with the casing mouth Structure processed, the necking control structure are used for controlling air inflow.