CN110388261A - Rotary engine and aircraft with it - Google Patents

Abstract

The present invention provides a kind of rotary engine and with its aircraft.Rotary engine includes main chamber and is set to the indoor rotor of main burning, and rotor, which is equipped with, can allow the vortex for generating vortex into the indoor pre-burning gas of main burning to form structure.It applies the technical scheme of the present invention, based on the law of airflow in rotary engine, setting vortex forms structure on rotor, and the pre-burning gas for flowing into main chamber can be promoted to form vortex, the diffusion for enhancing turbulent flow, strengthens the mixing and diffusion of pre- combustion gas Yu the indoor fresh air of main burning.

Description

Rotary engine and aircraft with it

Technical field

The present invention relates to engine arts, in particular to a kind of rotary engine and with its aircraft.

Background technique

Since the rotor of rotary engine carries out unidirectional rotary motion in engine body around fixed phasing gears, It is difficult to generate strong vortex because of pumping for piston as conventional engine, it can not be with so as to cause fuel Air is sufficiently mixed in rotor combustion chamber, and along with rotor combustion chamber is in flat long and narrow, flame is with air-flow The direction of motion, which is propagated, to be easy, reverse to propagate difficulty, is also easy to produce a large amount of unburned mixtures.

Moreover, because the physicochemical property of astatki itself, there is heavy oil and be not easy to be atomized, evaporate, it is difficult to further with The characteristics of air mixes.The above factors make there was only only a few heavy fuel rotating combustion engine scheme currently on the market, reliable Property, durability and cost are also problematic in that.It is the high-volatile fuel of representative, the volatility of astatki different from gasoline Low, density is big, and containing a large amount of heavy end, fraction point is also distributed at high temperature mostly, therefore, for heavy oil atomizing and steaming Hair, injection pressure, injection system cost will increase many, and difficulty can also improve much, and have to make it in a short time Effect evaporation also will be a problem.

Accordingly, it is desirable to provide the clean-burning rotary engine of heavy oil may be implemented in one kind.

Summary of the invention

The main purpose of the present invention is to provide a kind of rotary engine and with its aircraft, to solve the prior art The middle rotary engine using heavy oil is burnt insufficient problem.

To achieve the goals above, according to an aspect of the invention, there is provided a kind of rotary engine, including main burning Room and it is set to the indoor rotor of main burning, rotor, which is equipped with, can allow the whirlpool that vortex is generated into the indoor pre-burning gas of main burning Stream forms structure.

Further, rotor has shaft hole, two end faces being oppositely arranged and the circumferential side wall for connecting two end faces, Shaft hole penetrates through two end faces, and vortex forms the groove on the outer surface that structure is the circumferential side wall for being located at rotor.

Further, along the direction of rotation of rotor, groove includes the first groove and the second groove being connected, the first groove Depth be greater than the depth of the second groove, the area of the first groove is greater than the area of the second groove.

Further, circumferential side wall includes being sequentially connected three curved surfaces connect, along the direction of rotation of rotor, arc table Face has front-end and back-end, is equipped with first groove and second groove on each curved surfaces, wherein the first groove leans on The front end of nearly curved surfaces, the second groove is close to the rear end of curved surfaces.

Further, it is connected between the first groove and the second groove by rectangular channel, from the first groove to the second groove, square The depth of shape slot is gradually reduced.

Further, the profile of the first groove includes multistage the first major arc section, and the profile of the second groove includes multistage second Major arc section, the radius of the first major arc section are greater than the radius of the second major arc section.

Further, rotary engine further include: subsidiary combustion chamber is connected to main chamber；Fuel injector and glow plug, are all provided with In subsidiary combustion chamber, glow plug is used to heat the fuel oil sprayed from fuel injector, so that fuel oil pre-burning in subsidiary combustion chamber, fuel oil are pre- Pre-burning gas after combustion enters main chamber through subsidiary combustion chamber and burns.

Further, rotary engine further includes multiple spark plugs that main chamber is arranged in, and multiple spark plugs are used for point Combustion enters the indoor pre-burning gas of main burning.

Further, multiple spark plugs include the first spark plug and the second spark plug being arranged on main chamber peripheral wall, The cross section of main chamber perpendicular to shaft hole central axis and be parallel to the end face of rotor, wherein the axis of the first spark plug Line is parallel to the short axle of the cross section of main chamber, and the axis of the axis of the second spark plug and the first spark plug is arranged in angle.

Further, the air inlet of air required for being additionally provided on main chamber for providing fuel burning.

Further, subsidiary combustion chamber is spherical combustion chamber.

According to another aspect of the present invention, a kind of aircraft, including aircraft ontology and setting are provided in aircraft sheet Rotary engine on body, rotary engine are above-mentioned rotary engine.

It applies the technical scheme of the present invention, since the particular principles and structure of rotary engine can make rotor in rotary motion In the process, formed squish flow, and squish flow play the role of in direction of rotation it is conclusive.In addition, having in main chamber corresponding The shape that recirculation zone, the intensity of these reflux and position all form structure with the vortex being arranged in main chamber is closely bound up. Therefore, based on the law of airflow in rotary engine, setting vortex forms structure on rotor, can promote to flow into main combustion The pre-burning gas for burning room forms vortex, enhances the diffusion of turbulent flow, strengthens pre- combustion gas and the indoor fresh air of main burning Mixing and diffusion.

Detailed description of the invention

The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:

Fig. 1 shows the structural schematic diagram of the rotary engine of embodiment according to the present invention；

Fig. 2 shows the structural schematic diagrams of the rotor of the rotor generator in Fig. 1；And

Fig. 3 shows the cross-sectional view of Fig. 2.

Wherein, the above drawings include the following reference numerals:

1, fuel injector；2, subsidiary combustion chamber；3, interface channel；4, air inlet；5, glow plug；6, the second spark plug；7, first Spark plug；8, main chamber；9, rotor；90, groove；91, the first groove；92, the second groove；93, rectangular channel；900, shaft Hole.

Specific embodiment

It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

Fuel oil in the application is heavy oil, and also in combination with the physicochemical property of different fuel oils, it is appropriate to carry out to rotary engine Adjustment, is suitable for other fuel.

As shown in Figure 1 to Figure 3, the embodiment provides a kind of rotary engine.Rotary engine includes main combustion Room 8 and the rotor 9 in main chamber 8 are burnt, rotor 9 is equipped with to allow and generate into the pre-burning gas in main chamber 8 The vortex of vortex forms structure.

In this application, since the particular principles of rotary engine and structure can make rotor 9 during rotary motion, shape At squish flow, and squish flow play the role of in direction of rotation it is conclusive.In addition, have corresponding recirculation zone in main chamber 8, The shape that the intensity of these reflux and position all form structure with the vortex being arranged in main chamber 8 is closely bound up.Therefore, it is based on The law of airflow in rotary engine, setting vortex forms structure on rotor 9, can promote to flow into main chamber 8 Pre-burning gas forms vortex, enhances the diffusion of turbulent flow, strengthens the mixing of the fresh air in pre-burning gas and main chamber 8 With diffusion.Therefore, structure is formed by the way that vortex is arranged on rotor 9, the pre-burning gas flowed into main chamber 8 is promoted to form whirlpool Stream can enhance the diffusion of turbulent flow, reinforce the mixing and diffusion of fresh air in pre-burning gas and main chamber 8.

Specifically, in the working principle of engine, squish flow refers to when piston is close to stop, since space is sharply pressed Contracting, the air-flow that piston will press to combustion chamber positioned at the gas at cylinder edge and generate.It can be with using stronger squish The indoor turbulence intensity of strengthen burning, promotes the conflagration of mixed gas.

As shown in Figures 2 and 3, in the embodiment of the present invention, rotor 9 is with shaft hole 900, two end faces being oppositely arranged And the circumferential side wall of two end faces of connection, shaft hole 900 penetrate through two end faces, it is to be located at the week of rotor 9 that vortex, which forms structure, Groove 90 on the outer surface of side wall has folder between the depth extending direction of groove 90 and the central axis of shaft hole 900 Angle.

Preferably, from the recessed formation groove 90 in the outer surface of the circumferential side wall of rotor 9, the depth extending direction of groove 90 with The central axis upright of shaft hole 900, i.e. groove 90 extend along the radial direction of rotor 9.

Specifically, as shown in Fig. 2, along the direction of rotation of rotor 9, groove 90 includes the first groove 91 and second being connected Groove 92, the depth of the first groove 91 are greater than the depth of the second groove 92, and the area of the first groove 91 is greater than the second groove 92 Area.

The shape of 9 upper groove 90 of rotor is affected to the nowed forming of the trailing edge near zone of the groove 90 of rotor 9.Separately Outside, there is corresponding recirculation zone in main chamber 8, shape of the intensity and position of these reflux all with the groove 90 on rotor 9 Shape is closely bound up.For this purpose, groove 90 is designed as quincunx profile and gradual change based on the law of airflow in rotary engine The construction of depth.

As shown in Figures 2 and 3, in the embodiment of the present invention, circumferential side wall includes being sequentially connected three curved surfaces connect, Along the direction of rotation of rotor 9, curved surfaces have front-end and back-end, are equipped with first groove 91 and one on each curved surfaces A second groove 92, wherein the first groove 91 is close to the front end of curved surfaces, and the second groove 92 is close to the rear end of curved surfaces.

Further, the profile of the first groove 91 includes multistage the first major arc section, and the profile of the second groove 92 includes multistage Second major arc section, the radius of the first major arc section are greater than the radius of the second major arc section.

Specifically, the shape of the groove 90 in the present embodiment is as shown in Fig. 2, the effect of above-mentioned setting is to promote to flow into main combustion The pre-burning gas burnt in room 8 forms vortex, enhances the diffusion of turbulent flow, promote pre-burning gas with it is fresh in main chamber 8 The mixing and diffusion of air.The depth and area of first groove 91 are all larger than the depth and area of the second groove 92, are conducive to increase It suppresses in compression process and combustion process, squish flow and circulating flow strength of the pre-burning mixed gas inside groove 90 promote mixed gas Backwash deployment close to the rear end of rotor 9.On the one hand above-mentioned setting can weaken the unidirectional rotary motion of air-flow, improve fuel oil with The mixed effect of air optimizes the pressure distribution in the flowing velocity and main chamber 8 of mixed gas；On the other hand, promote Propagation of the flame to unburned burning mixture after mixed gas burning, accelerates burn rate.

Along the direction of rotation of rotor 9, the rear end of groove 90 is shallow and smooth, is conducive to mixed gas and flame to rotor 9 Rear end diffusion and propagation, improve the intrinsic stream condition of rotary engine.Therefore, by above-mentioned setting, fuel oil and sky are improved The mixed effect of gas, burnt gas propagate heat and flame to unburned gas, accelerate burn rate.

It preferably, include on the direction of rotation of rotor 9 in the application by two the first grooves 91 of front end and close Two the second grooves 92 of rear end, two the first grooves 91 and two the second grooves 92 respectively be in bifurcated petal shape, two Second groove 92 is arranged in a one-to-one correspondence with two the first grooves 91.The petal shape of bifurcated promotes to flow into the pre-burning of main chamber 8 Gas forms vortex, enhances the diffusion of turbulent flow, strengthens the mixing and expansion of the fresh air in pre- combustion gas and main chamber 8 It dissipates.The big groove that two the first grooves 91 surround is conducive to enhance in compression process and combustion process, and pre-burning mixed gas is the The squish flow and circulating flow strength of formation in one groove 91, promote backwash deployment close to the rear end of rotor 9, on the one hand can weaken gas The unidirectional rotary motion of stream improves the mixed effect of fuel oil and air, optimization flowing velocity and indoor pressure distribution of burning, separately On the one hand, flame can also be promoted to propagate to unburned burning mixture, accelerate burn rate.

As shown in Figures 2 and 3, in the embodiment of the present invention, pass through rectangular channel between the first groove 91 and the second groove 92 93 connections, from 91 to the second groove 92 of the first groove, i.e., on the direction of rotation of rotor 9, the depth of rectangular channel 93 is gradually reduced.

By the way that the groove 90 of gradual change depth is arranged, the mixing diffusion of turbulent flow is enhanced, the intensity of squish flow is strengthened, is adjusted The position of whole reflux optimizes the pressure distribution in the flowing velocity and main chamber 8 of mixed gas, rationalization's air-flow fortune It is dynamic, not only accelerate flame transmission speed, moreover it is possible to accelerate burn rate.

As shown in Fig. 2, circumferential side wall includes being sequentially connected the multiple arcs surface connect, multiple in the embodiment of the present invention Fluted 90 are all provided on curved surfaces, the inner wall cooperation of curved surfaces and main chamber 8 is so that rotor 9 can be relative to main combustion Room 8 is burnt to rotate.

In this application, rotor 9 is sequentially connected the curved surfaces connect including three, is all provided on three curved surfaces fluted 90.By above-mentioned setting, the mixing diffusion of turbulent flow is further enhanced, strengthens the intensity of squish flow, rationalization's air-flow Movement, accelerates flame transmission speed, accelerates efficiency of combustion.

As shown in Figure 1, rotary engine further includes subsidiary combustion chamber 2, fuel injector 1 and glow plug in the embodiment of the present invention 5.Subsidiary combustion chamber 2 is connected to main chamber 8；Fuel injector 1 and glow plug 5 are each provided in subsidiary combustion chamber 2, and glow plug 5 is for heating The fuel oil sprayed from fuel injector 1, so that fuel oil pre-burning in subsidiary combustion chamber 2, the pre-burning gas after fuel oil pre-burning is through subsidiary combustion chamber 2 It burns into main chamber 8.

In this application, due to be provided with subsidiary combustion chamber 2, and by fuel injector 1 be arranged in subsidiary combustion chamber 2, thus make by The fuel oil that fuel injector 1 sprays is introduced into subsidiary combustion chamber 2；Again due to being provided with glow plug 5, glow plug 5 in subsidiary combustion chamber 2 The fuel oil that can be sprayed to fuel injector 1 heats, and makes the fuel evaporation in subsidiary combustion chamber 2, the fuel oil after evaporation and secondary burning Air in room 2 is sufficiently mixed, and due to the heat effect of glow plug 5, the fuel oil after making evaporation is mixed with air more sufficiently.When When the temperature that glow plug 5 heats reaches the burning point of mixed gas, mixed gas is ignited, and realizes the pre-burning of mixed gas.Because Main chamber 8 is connected to subsidiary combustion chamber 2, and sufficient mixed gas of not burning enters main chamber 8, is further burnt, Keep fuel burning abundant.Therefore by above-mentioned setting, realizing rotary engine can be with combusting heavy oil, and ensure that heavy oil combustion Sufficiently, air utilization ratio is improved.

Different from using gasoline as the high-volatile fuel of representative, the volatility of astatki is low, and density is big, containing a large amount of Heavy distillate, fraction point are distributed at high temperature mostly.Therefore, for heavy oil atomizing and evaporation, injection pressure, injection system Cost will increase many, and difficulty can also improve much, and effectively evaporation also will be a problem in a short time in order to make it.

Therefore, by adding subsidiary combustion chamber 2 in the application, and it is arranged in subsidiary combustion chamber 2 for heavy oil heating evaporation Glow plug 5, assist the evaporation of heavy oil, make heavy oil in subsidiary combustion chamber 2 after pre-burning, enter back into main chamber 8 and burn, protect Having demonstrate,proved heavy oil can burn sufficiently.

Further, the fuel injector 1 in the application does not need higher pressure, not to the pulverization quality requirements of fuel droplets It is high, it is only necessary to which that the air motion direction oil spout in subsidiary combustion chamber 2, therefore, the fuel injector 1 in the application are low pressure spray Oily device.In injection process, when there is fuel oil to spray to the inner wall of subsidiary combustion chamber 2, due to the heat effect of glow plug 5, quilt Gas can be evaporated to by spraying to the fuel oil of the inner wall of subsidiary combustion chamber 2, be mixed with the air in subsidiary combustion chamber 2.Therefore, by upper Setting is stated, the rotary engine of the application uses low pressure fuel injector device, reduces the cost of rotary engine, and heavy oil combustion is stablized Reliably, air utilization ratio is high.

Preferably, the subsidiary combustion chamber 2 in the application is spherical combustion chamber.

It is connected between subsidiary combustion chamber 2 and main chamber 8 by interface channel 3, sufficient mixed gas of not burning is through even It connects road 3 further to be burnt into main chamber 8, ensure that fuel burning is abundant.

Specifically, due to heavy oil, pre-burning, the pressure and temperature in subsidiary combustion chamber 2 can be increased in subsidiary combustion chamber 2, and due to Fuel oil in subsidiary combustion chamber 2 is imperfect combustion, and when pre-burning can generate a large amount of intermediate product and active group.With rotor 9 Further movement, mixed gas can be pressed into main chamber 8 by interface channel 3 in expansion process.Rotary engine it is special Principle and structure can make rotor 9 during rotary motion, form squish flow, and squish flow plays an important role in direction of rotation. In the working principle of engine, squish flow refers to that, since space is sharply compressed, piston will be located at cylinder when piston is close to stop The gas at edge presses to combustion chamber and the air-flow that generates.The indoor turbulent flow of burning can be enhanced using stronger squish Intensity promotes the conflagration of mixed gas.Therefore, structure is formed by the way that vortex is arranged on rotor 9, promotes to flow into main burning Being formed in room 8 with combustion gas body is vortexed, and can enhance the diffusion of turbulent flow, reinforce pre-burning gas with it is fresh in main chamber 8 The mixing and diffusion of air.

As shown in Figure 1, rotary engine further includes multiple sparks that main chamber 8 is arranged in the embodiment of the present invention Plug, multiple spark plugs are for lighting into the pre-burning gas in main chamber 8.

Further, multiple spark plugs include the first spark plug 7 and the second spark plug being arranged on main chamber peripheral wall 6, the cross section of main chamber 8 is class ellipse, and the cross section of main chamber 8 includes the long axis being mutually orthogonal to one another and short axle, Wherein, the axis of the first spark plug 7 is parallel to the short axle of the cross section of main chamber 8, the axis of the second spark plug 6 and the first fire The axis of flower plug 7 is in angle setting, the central axis of the cross section of main chamber 8 perpendicular to shaft hole 900.

Preferably, the first spark plug 7 is high-energy sparking plug, and the second spark plug 6 is common spark plugs.The axis of high-energy sparking plug Line is parallel with the short axle of 8 cross section of main chamber, and the axis of common spark plugs and the axis of high-energy sparking plug are in 30 ° of angles.In Under the mating reaction of common spark plugs and high-energy sparking plug, mixed gas is orderly lighted, and with the air motion of reinforcing, is made a little The flame fast propagation of combustion.The temperature when oxidation reaction and combustion heat release occurred when pre-burning improves main combustion in main chamber 8 With pressure, some active components are formed simultaneously, timing of combustion is promoted to shift to an earlier date, delay period shortens, and further improves burn rate.

As shown in Figure 1, in the embodiment of the present invention, sky required for being additionally provided on main chamber 8 for providing fuel burning The air inlet 4 of gas.

Since main chamber 8 is connected to subsidiary combustion chamber 2 by interface channel 3, so entering main chamber 8 by air inlet 4 Air can also through interface channel 3 enter subsidiary combustion chamber 2, with heavy oil evaporation gas mixing, to realize heavy oil steam and air Mixing, to realize pre-burning under the action of glow plug 5.

The embodiments of the present invention also provide a kind of aircrafts, including aircraft ontology and are arranged on aircraft ontology Rotary engine, rotary engine are above-mentioned rotary engine.

Rotary engine in the application can using heavy oil as fuel, and by the setting of double combustion chamber, on rotor 9 Setting vortex forms structure and multiple spark plugs is arranged on main chamber 8, and heavy oil is allow effectively to evaporate and mix with air, Enter main chamber 8 after 2 pre-burning of subsidiary combustion chamber further to burn, it is ingenious to avoid the intrinsic scarce of rotary engine air motion Point realizes the heavy oil combustion of rotary engine, ensure that heavy oil combustion is abundant, and the fast, efficiency of combustion with burning velocity High advantage.Therefore, the aircraft with above-mentioned rotary engine also has the above advantages.

In order to realize heavy oil combustion, there are three types of typical scheme, one of which is the heavy fuel rotating combustion engine of the prior art The preheater of a set of cold start is added using preheating technology, such as the Rotron company of Britain, equipped with fuel tank, power supply, burner and The components such as combustor nozzle.Whole system is complex, and applicable elements are limited, inconvenient, and has certain risk.Second Kind is the stratified combustion using in-cylinder direct-jet, if the Curtiss-Wright company in the U.S. is the layering for realizing fuel oil, benefit It combines main fuel injector to constitute more fuel injector schemes with pre- fuel injector, sequence oil spout is divided in the time and space, then cooperate two or more Spark plug, realize multi-point spark.Obviously, not only complicated in program structure, the casting difficulty of body is also added, is reduced The intensity of body；If increasing additional energy consumption in addition, the injection pressure of in-cylinder direct-jet is high, oily beam is largely directly hit Wall surface is hit, wet wall is caused；If injection pressure is low, the Sauter mean diameter of oil droplet will be larger, it is meant that oil droplet and air Contact area reduces, and causes oil droplet to be difficult to quick break and evaporation, directly affects the stability of burning.The third is using compression ignition Technology, due to the special construction and principle of rotary engine, compression ratio does not exceed 15, and the mode of single stage compress can not press Astatki is fired, then realizes astatki in such a way that Britain Rolls-Royce proposes two-stage compression ignition as the company of representative Compression ignition technology, but corresponding problem is that compression-ignited rotary engine structure is complicated, dimension and weight is big, at high cost；Meanwhile Since the gas passage between two-stage increases gas flow loss, radiation loss is big, and the thermal efficiency is low, poor performance, it is difficult to real Border application, it is more difficult to applied to the aviation field for emphasizing high power to weight ratio.

On the basis of existing technology, there is following difficulty to the improvement of rotary engine:

Firstly, the atomization and evaporation of astatki.It is the high-volatile fuel of representative different from gasoline, astatki is waved Hair property is low, and density is big, and containing a large amount of heavy end, the fraction point of heavy oil is also distributed at high temperature mostly, therefore, for heavy oil Atomization and evaporation, injection pressure, injection system cost will increase many, and difficulty can also improve much, and in order to make it short Effectively evaporating in time also will be a problem.

Secondly, the one-way gas flow of rotary engine moves.Due to the mainly unidirectional rotation fortune of the movement of rotary engine Dynamic, unidirectional rotary motion is macroscopically presented in air-flow, it is difficult to cause the mixing of fuel and air, and flame is with air motion Direction, which is propagated, to be easy, reverse to propagate difficulty, is both unfavorable for mixing, and is also unfavorable for flame and is propagated to combustion chamber rear end.

Third, rotor combustion chamber are flat long and narrow.Special structure type causes fuel injector cloth when in-cylinder direct-jet Difficulty is set, the spray pattern of oily beam is difficult to be effectively matched combustion chamber, and combustion chamber surface to volume ratio is big, and flame Rong Yi temper is put out.

4th, astatki lights difficulty.Atomization, evaporation, mixing of the astatki in rotary engine all suffer from A series of problems causes ignition energy requirement needed for lighting heavy oil to significantly increase, and ignition duration also wants long enough.It is bright The aobvious requirement improved to ignition system.

Therefore, the present invention provides a kind of rotary engine, on the one hand using the combustion scheme of main and auxiliary combustor's cooperation, separately On the one hand setting vortex forms structure on rotor 9, can strengthen squish flow and vortex, is conducive to the flowing for efficiently using air, Mixing between strengthening airflow and fuel oil, is both suitable for rotary engine, is also suitable for traditional conventional engine Combustion chamber is vortexed to form structure.Further, multiple spark plugs are set on main chamber 8, evaporate heavy oil effectively simultaneously It mixes with air, main chamber 8 is entered after 2 pre-burning of subsidiary combustion chamber and is further burnt, it is ingenious to avoid rotary engine air-flow The inherent defect of movement realizes the heavy oil combustion of rotary engine, ensure that heavy oil combustion is abundant, and has burning velocity Fastly, the advantages of high combustion efficiency.

Technology bill of the invention is achieved in the following ways:

Using the structure of double combustion chamber, burning is organized stage by stage, pre-burning is realized in subsidiary combustion chamber 2, reduces to spray The requirement of oily device 1, injection pressure do not have to high pressure, also reduce the requirement to atomizing effect, and the main vortex by being formed is strengthened Mixing promotes the Space evaporation of astatki and wall surface to evaporate by the heat effect of glow plug 5.Therefore, entire injection system At low cost, heavy oil combustion is reliable and stable, and air utilization ratio is high.

Using the groove 90 that variable depth is arranged on rotor 9, enhances the mixing diffusion of turbulent flow, reinforce the strong of squish flow Degree adjusts the position of reflux, optimizes flowing velocity and the indoor pressure distribution of burning, rationalization's air motion, then match chalaza The different spark plug of fiery energy, orderly lights gaseous mixture, not only accelerates flame transmission speed, moreover it is possible to accelerate burn rate.

A whole set of heavy oil combustion scheme, from burning and the movement mechanism of air-flow, in conjunction with the design of oil, gas, room, reduction pair The oil spout and atomization of astatki require, and the movement of strengthening airflow changes the intrinsic mixed Daqu feature of rotary engine.This Set combustion scheme is applicable not only to astatki, moreover it is possible to which, in conjunction with the different physicochemical properties of fuel, appropriate adjustment is later to be suitable for Other fuel.

It can be seen from the above description that the above embodiments of the present invention realized the following chievements: being based on rotor The law of airflow in engine, setting vortex forms structure on rotor, promotes the pre-burning gas shape for flowing into main chamber At vortex, enhance the diffusion of turbulent flow, strengthens the mixing and diffusion of pre-burning gas and the indoor fresh air of main burning.Cause This, forms structure by the way that vortex is arranged on rotor, promotes to flow into the indoor pre-burning gas formation vortex of main burning, can enhance The diffusion of turbulent flow reinforces the mixing and diffusion of pre-burning gas and main burning indoor fresh air.Further, due to setting Subsidiary combustion chamber, and fuel injector is arranged in subsidiary combustion chamber, so that the fuel oil sprayed by fuel injector be made to be introduced into subsidiary combustion chamber； Again due to being provided with glow plug in subsidiary combustion chamber, the fuel oil that glow plug can spray fuel injector is heated, and makes pair Fuel evaporation in combustion chamber, the air in fuel oil and subsidiary combustion chamber after evaporation are sufficiently mixed, and due to the heating of glow plug Effect, the fuel oil after making evaporation mix with air more sufficiently.When the temperature of glow plug heating reaches the burning point of mixed gas, mix It closes gas to be ignited, realizes the pre-burning of mixed gas.Because main chamber is connected to subsidiary combustion chamber, sufficient mixing of not burning Gas enters main chamber, is further burnt, and keeps fuel burning abundant.Therefore by above-mentioned setting, rotor hair is realized Motivation can be with combusting heavy oil, and ensure that heavy oil combustion is abundant, improves air utilization ratio.

The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (12)

1. a kind of rotary engine, which is characterized in that including main chamber (8) and the rotor being set in the main chamber (8) (9), the vortex that the rotor (9) is equipped with the pre-burning gas generation vortex that can be allowed into the main chamber (8) is formed Structure.

2. rotary engine according to claim 1, which is characterized in that the rotor (9) has shaft hole (900), phase The circumferential side wall of two end faces and the described two end faces of connection to setting, the shaft hole (900) penetrate through described two ends Face, the vortex form the groove (90) on the outer surface that structure is the circumferential side wall for being located at the rotor (9).

3. rotary engine according to claim 2, which is characterized in that described recessed along the direction of rotation of the rotor (9) Slot (90) includes the first groove (91) and the second groove (92) being connected, and the depth of first groove (91) is greater than described the The depth of two grooves (92), the area of first groove (91) are greater than the area of second groove (92).

4. rotary engine according to claim 3, which is characterized in that the circumferential side wall includes being sequentially connected three connect A curved surfaces, along the direction of rotation of the rotor (9), the curved surfaces have front-end and back-end, each curved surfaces On be equipped with first groove (91) and second groove (92), wherein first groove (91) is close The front end of the curved surfaces, second groove (92) is close to the rear end of the curved surfaces.

5. rotary engine according to claim 3 or 4, which is characterized in that first groove (91) and described second It is connected between groove (92) by rectangular channel (93), from first groove (91) to second groove (92), the rectangle The depth of slot (93) is gradually reduced.

6. rotary engine according to claim 4, which is characterized in that the profile of first groove (91) includes multistage First major arc section, the profile of second groove (92) include multistage the second major arc section, and the radius of the first major arc section is greater than The radius of the second major arc section.

7. rotary engine according to any one of claim 1 to 4, which is characterized in that the rotary engine is also wrapped It includes:

Subsidiary combustion chamber (2) is connected to the main chamber (8)；

Fuel injector (1) and glow plug (5), are each provided on the subsidiary combustion chamber (2), and the glow plug (5) is for heating described in The fuel oil that fuel injector (1) sprays, so that pre-burning of the fuel oil after the subsidiary combustion chamber (2) interior pre-burning, the fuel oil pre-burning Gas burns through the subsidiary combustion chamber (2) into the main chamber (8).

8. rotary engine according to claim 7, which is characterized in that the rotary engine further includes being arranged described Multiple spark plugs of main chamber (8), the multiple spark plug are used to light the pre-burning into the main chamber (8) Gas.

9. rotary engine according to claim 8, which is characterized in that the multiple spark plug includes being arranged in the master The first spark plug (7) and the second spark plug (6) on combustion chamber (8) peripheral wall, the cross section of the main chamber (8) is perpendicular to turning The central axis of axis hole (900) and the end face for being parallel to the rotor (9), wherein the axis of first spark plug (7) is parallel Short axle in the cross section of the main chamber (8), the axis of second spark plug (6) and first spark plug (7) Axis is arranged in angle.

10. rotary engine according to any one of claim 1 to 4, which is characterized in that on the main chamber (8) The air inlet (4) of air required for being additionally provided with for providing fuel burning.

11. rotary engine according to claim 7, which is characterized in that the subsidiary combustion chamber (2) is spherical combustion chamber.

12. a kind of aircraft, which is characterized in that start including aircraft ontology and the rotor being arranged on the aircraft ontology Machine, the rotary engine are rotary engine described in any one of claims 1 to 11.