阅读说明：本技术 环形串联直缸发动机的增压配气机构及环形直缸发动机 (Supercharging air distribution mechanism of annular series straight cylinder engine and annular straight cylinder engine ) 是由 杨聪楠 徐海军 唐源江 孙承亮 高雪 张国卿 徐藜洋 徐小军 于 2021-10-20 设计创作，主要内容包括：本发明属于环形发动机技术领域,公开了一种环形串联直缸发动机的增压配气机构及环形直缸发动机,为了解决现有环形发动机存在着的密封性能差、以及无法满足在高性能、轻量化的条件下使用的问题。本发明包括具有进气气道的进气轴,所述进气轴同轴固定连接有中央配气轴,所述中央配气轴的外围沿着中央配气轴的轴向方向依次转动连接有第一转子配气轴和第二转子配气轴,所述中央配气轴包括用于与进气轴连接的连接法兰,所述连接法兰连接有筒体,所述筒体朝向连接法兰的一侧沿着筒体的径向方向开设有多个进气口,每一个进气口均连通有进气通道。(The invention belongs to the technical field of annular engines, discloses a supercharging valve actuating mechanism of an annular series straight cylinder engine and the annular straight cylinder engine, and aims to solve the problems that the existing annular engine is poor in sealing performance and cannot be used under the conditions of high performance and light weight. The air distribution device comprises an air inlet shaft with an air inlet passage, wherein the air inlet shaft is coaxially and fixedly connected with a central air distribution shaft, the periphery of the central air distribution shaft is sequentially and rotatably connected with a first rotor air distribution shaft and a second rotor air distribution shaft along the axial direction of the central air distribution shaft, the central air distribution shaft comprises a connecting flange used for being connected with the air inlet shaft, the connecting flange is connected with a cylinder body, one side of the cylinder body, facing the connecting flange, is provided with a plurality of air inlets along the radial direction of the cylinder body, and each air inlet is communicated with an air inlet passage.)

1. The supercharging valve actuating mechanism of the annular series straight cylinder engine comprises an air inlet shaft (1) with an air inlet channel (11), and is characterized in that the air inlet shaft (1) is coaxially and fixedly connected with a central air distribution shaft (2), the periphery of the central air distribution shaft (2) is sequentially and rotatably connected with a first rotor air distribution shaft (3) used for installing a first rotor (5) and distributing air to the first rotor (5) and a second rotor air distribution shaft (4) used for installing a second rotor (6) and distributing air to the second rotor (6) along the axial direction of the central air distribution shaft, the central air distribution shaft (2) comprises a connecting flange (24) used for being connected with the air inlet shaft (1), the connecting flange (24) is connected with a cylinder body (25), the cylinder body (25) is provided with a plurality of air inlets (26) towards one side of the connecting flange (24) along the radial direction of the cylinder body (25), each air inlet (26) is communicated with an air inlet channel (212), the air inlet channel (212) communicated with the air inlets penetrates through the outer circumferential wall of the cylinder body (25) and forms a first air inlet (27) and a second air inlet (28) on the outer circumferential wall of the cylinder body (25), a first air port (33) which can be communicated with the first air inlet (27) and used for distributing air to the first rotor is formed in the first rotor air distribution shaft (3), a second air port (43) which can be communicated with the second air inlet (28) and used for distributing air to the second rotor is formed in the second rotor air distribution shaft (4), a plurality of air outlets (211) are formed in one side face, away from the connecting flange (24), of the cylinder body (25) along the radial direction of the cylinder body (25), each air outlet (211) is communicated with an air outlet channel, the air outlet channel communicated with the air outlets (211) penetrates through the outer circumferential wall of the cylinder body (25) and forms a first air outlet on the outer circumferential wall of the cylinder body (25) An air outlet (29) and a second air outlet (210); when the first rotor gas distribution shaft (3) and the second rotor gas distribution shaft (4) rotate along the central gas distribution shaft (2), the first gas ports (33) can be alternately communicated with the first gas inlets (27) and the first gas outlets (29), and the second gas ports (43) can be alternately communicated with the second gas inlets (28) and the second gas outlets (210).

2. The first rotor gas distribution shaft (3) is provided with a small-diameter section matched with the periphery of the central gas distribution shaft (2) and a large-diameter section with the inner diameter larger than that of the central gas distribution shaft (2), and one end of the second rotor gas distribution shaft (4) is sleeved on the periphery of the central gas distribution shaft (2) and is positioned in the large-diameter section of the first rotor gas distribution shaft (3).

3. Install on first gas port (33) and be used for carrying out first air cock (31) of distributing to first rotor (5), install on second gas port (43) and be used for carrying out second air cock (41) of distributing to second rotor (6), breach (32) that are used for exposing second air cock (41) are offered to the major diameter section of first rotor distribution gas axle (3).

4. A third air nozzle (51) is mounted on the air cylinder (7) of the first rotor (5), and the first air nozzle (31) and the third air nozzle (51) are communicated with each other through a pipeline; and a fourth air nozzle (61) is installed on the air cylinder (7) of the second rotor (6), and the second air nozzle (41) is communicated with the fourth air nozzle (61) through a pipeline.

5. The air inlet (26) and the air outlet (211) are respectively arranged on two sides of the cylinder body (25) along a direction parallel to the axial direction of the cylinder body (25).

6. And the second rotor air distribution shaft (4) is provided with an exhaust channel (42) communicated with the air outlet (211) of the cylinder (25).

7. The middle part of barrel (25) is rotated and is installed axis of rotation (21), the one end of axis of rotation (21) extend the gas outlet of barrel (25) and install with turbine blade (22), the other end of axis of rotation (21) extends air inlet (26) of barrel (25) and installs compressed air blade (23).

8. The annular straight cylinder engine is characterized by comprising the supercharging valve actuating mechanism.

Technical Field

The invention belongs to the technical field of piston engines, and particularly relates to a supercharging air distribution mechanism of an annular series straight cylinder engine and the annular straight cylinder engine, which are used for distributing air for the piston engine.

Background

The reciprocating piston engine is simple in principle, mature in technology and widely applied to various fields, but is limited by the reciprocating motion characteristic of the piston and the characteristic of a traditional crank-connecting rod mechanism, the traditional reciprocating piston engine is difficult to obviously improve power density and maximum output power, in order to improve the power density and the maximum output power of the engine, a feasible method is to arrange a plurality of cylindrical cylinders which are arranged axially in parallel in series along the same circumferential direction, the reciprocating motion of the piston relative to the cylinder is realized through a special differential mechanism, and the cylinder and the piston rotate around a main shaft fixed shaft, so that the cylinder can complete a plurality of thermodynamic processes in the process of one-circle rotation of the main shaft, further the multiple work doing is realized, and the purpose of improving the power density and the maximum output power is achieved.

However, the engine cylinders are arranged in an annular series connection mode, and the problem is that the cylinders rotate around the main shaft of the engine in a one-way fixed shaft mode, and the processes of air intake, air exhaust and the like cannot be achieved through a traditional valve structure. The air intake and exhaust processes are the premise and the basis for realizing continuous and stable work of the internal combustion piston engine.

In view of this problem, the applicant of the present application filed a patent application with publication number CN112177769A, which will realize air distribution of each cylinder of the engine in annular series by aligning an air inlet and an air outlet on an air distribution shaft with a first air port and a second air port on a rotary air distribution shaft sleeve alternately.

The distribution of air (air inlet and air outlet) of the auxiliary rotor in the mechanism needs to pass through the main rotor, namely the auxiliary rotor is communicated with the rotary distribution shaft sleeve through the main rotor to realize air inlet and air outlet. The first air port on the main rotor is communicated with the main cylinder seat hole through a first air passage, and the second air port of the main rotor is communicated with the third air port of the main rotor through a second air passage; the auxiliary rotor is provided with an auxiliary rotor air port, an auxiliary air cylinder air passage and an auxiliary air cylinder seat hole, and the third air port of the main rotor is communicated with the auxiliary rotor air port so as to be communicated with the auxiliary air cylinder seat hole of the auxiliary rotor. Namely, the air distribution process of the auxiliary rotor is as follows: the gas distribution shaft-rotary gas distribution shaft-main rotor (sequentially passes through a second gas port, a second gas passage, a third gas port, an auxiliary rotor gas port, an auxiliary cylinder gas passage-an auxiliary cylinder seat hole); therefore, the air distribution channel of the whole auxiliary rotor is very long, and the long air distribution channel causes the following problems:

1. the air current needs to pass through a plurality of contact surfaces, and the contact surfaces needing sealing treatment are more, so that the manufacturing cost is high, and the problem of sealing leakage is easy to occur.

2. Longer air distribution results in less than complete exhaust (i.e., residual exhaust gas is present in the longer air distribution passage), which affects the power density and maximum output power of the engine.

3. Because the setting of second gas port, second air flue, third gas port on the main rotor, can reduce the structural strength of main rotor, and in order to ensure the structural strength of main rotor, then need carry out thickening (increase in volume, weight increase) to the size of main rotor, thereby lead to under can't satisfying some use scenarios (for example small-size unmanned platform) to high performance, lightweight special demand, and main rotor thickening still can lead to inertial force big, the use scenario of the straight jar engine of annular series connection has further been restricted.

Disclosure of Invention

In order to solve the technical problems, the invention provides a supercharging air distribution mechanism of an annular series straight cylinder engine and the annular straight cylinder engine, wherein an annular series cylinder rotates to enable a first air port and a second air port of a communicated cylinder to alternately align to an air inlet and an air outlet of a central air distribution shaft, so that the multiplexing of an air inlet and an air outlet channel and the automatic air inlet and exhaust process of the cylinder are realized, the power density and the maximum output power of the engine can be improved, and the supercharging air distribution mechanism has the characteristic of compact structure and can be used under the scenes of high performance and light weight. Meanwhile, the invention integrates axial flow turbine blades on the central air distribution shaft by utilizing the axial flow characteristics of air intake and exhaust, and converts the residual energy of waste gas to improve the air intake efficiency.

In order to solve the technical problem, the technical scheme adopted by the invention is as follows:

the utility model provides a straight jar of engine's pressure boost air distribution mechanism is established ties to annular, pressure boost air distribution mechanism is including the air inlet shaft that has the air flue that admits air, its characterized in that, the coaxial fixedly connected with central air distribution shaft of air inlet shaft, the periphery of central air distribution shaft rotates in proper order along the axial direction of central air distribution shaft and is connected with the first rotor air distribution shaft that is used for installing first rotor and distributes the gas to first rotor and is used for installing the second rotor and distribute the gas to the second rotor of second rotor and distribute the gas, central air distribution shaft is including being used for the flange with the air inlet shaft, flange connection has the barrel, a plurality of air inlets have been seted up along the radial direction of barrel to one side of barrel towards flange, and each air inlet all communicates has inlet channel, and the inlet channel who communicates with the air inlet runs through the outer periphery wall of barrel and forms first air inlet and second air inlet on the outer periphery wall of barrel, the first rotor gas distribution shaft is provided with a first gas port which can be communicated with the first gas inlet and is used for distributing gas to the first rotor, the second rotor gas distribution shaft is provided with a second gas port which can be communicated with the second gas inlet and is used for distributing gas to the second rotor, one side surface of the cylinder body, away from the connecting flange, is provided with a plurality of gas outlets along the radial direction of the cylinder body, each gas outlet is communicated with a gas outlet channel, and the gas outlet channels communicated with the gas outlets penetrate through the outer circumferential wall of the cylinder body and form a first gas outlet and a second gas outlet on the outer circumferential wall of the cylinder body; when the first rotor gas distribution shaft and the second rotor gas distribution shaft rotate along the central gas distribution shaft, the first gas port can be alternately communicated with the first gas inlet and the first gas outlet, and the second gas port can be alternately communicated with the second gas inlet and the second gas outlet.

In some embodiments, the first rotor gas distribution shaft has a small diameter section adapted to the periphery of the central gas distribution shaft and a large diameter section with an inner diameter larger than that of the central gas distribution shaft, and an end of the second rotor gas distribution shaft is sleeved on the periphery of the central gas distribution shaft and located in the large diameter section of the first rotor gas distribution shaft.

In some embodiments, the first air port is provided with a first air nozzle for distributing air to the first rotor, the second air port is provided with a second air nozzle for distributing air to the second rotor, and a large-diameter section of the first rotor air distribution shaft is provided with a notch for exposing the second air nozzle.

In some embodiments, the air inlet and the air outlet are respectively arranged on both sides of the cylinder in a direction parallel to the axial direction of the cylinder.

In some embodiments, a third air nozzle is mounted on the air cylinder of the first rotor, and the first air nozzle and the third air nozzle are communicated with each other through a pipeline; and a fourth air nozzle is arranged on the air cylinder of the second rotor, and the second air nozzle is communicated with the fourth air nozzle through a pipeline.

In some embodiments, the second rotor air distribution shaft is provided with an exhaust passage communicated with the air outlet of the cylinder.

In some embodiments, the middle of the cylinder body is rotatably provided with a rotating shaft, one end of the rotating shaft extends out of the air outlet of the cylinder body and is provided with the turbine blade, and the other end of the rotating shaft extends out of the air inlet of the cylinder body and is provided with the air compressing blade.

The utility model provides a straight jar engine of annular which characterized in that, includes the multiplexing type pressure boost air distribution mechanism of the air flue of the straight jar engine of annular series connection.

Compared with the prior art, the invention has the following beneficial effects:

in the use process of the supercharging air distribution mechanism, an air inlet shaft is fixedly connected on a shell of an engine, a central air distribution shaft fixedly connected with the air inlet shaft is fixedly connected, a first rotor air distribution shaft and a second rotor air distribution shaft are rotatably connected at the periphery of the central air distribution shaft, when a first rotor and a second rotor work, the first rotor air distribution shaft and the second rotor air distribution shaft are driven to rotate around the central air distribution shaft, so that a first air port on the first rotor air distribution shaft is alternatively aligned with a first air inlet and a first air outlet on the central air distribution shaft, a second air port on the second rotor air distribution shaft is alternatively aligned with a second air inlet and a second air outlet on the central air distribution shaft, a first air port on the first rotor air distribution shaft is communicated with an air cylinder of the first rotor through a first air nozzle and a third air nozzle, a second air port on the second rotor air distribution shaft is communicated with an air cylinder of the second rotor through a second air nozzle and a fourth air nozzle, thus realizing the distribution (air intake and exhaust) of the air cylinders on the first rotor and the second rotor. Compared with the prior art, the invention adopts the structural design of the central gas distribution shaft and the structural design of the first rotor gas distribution shaft and the second rotor gas distribution shaft: on one hand, the two sides of the central gas distribution shaft are respectively provided with a gas inlet and a gas outlet (namely, the two ends of the cylinder are respectively provided with the gas inlet and the gas outlet), the gas inlet forms a first gas inlet and a second gas inlet on the outer circumferential wall of the cylinder through a gas inlet channel, and the gas outlet forms a first gas outlet and a second gas outlet on the outer circumferential wall of the cylinder through a gas outlet channel, so that only one rotary sealing surface is arranged between the first rotor gas distribution shaft and the central gas distribution shaft, the sealing surfaces in the gas distribution process are reduced, and the sealing performance in the gas distribution process is improved. On the other hand, in the use process of the invention, the air distribution flow of the air cylinder on the first rotor and the air cylinder on the second rotor is air inlet shaft-central air distribution shaft-first rotor air distribution shaft (second rotor shaft) -air cylinder on the first rotor (air cylinder on the second rotor), therefore, compared with the prior art, the air distribution process of the air cylinder on the second rotor can be greatly shortened, thereby reducing the number of sealing surfaces again and improving the sealing performance; meanwhile, the length of an exhaust air passage is reduced, so that the storage of waste gas in the air passage is convenient to reduce, and the functional density and the maximum output power of the engine are convenient to improve; and owing to reduced the setting of second gas port, second air flue, third gas port on main rotor (first rotor), reduced the setting of vice cylinder air flue on vice rotor (second rotor), can improve the intensity of first rotor and second rotor to be convenient for use under high performance, lightweight scene. Meanwhile, on the premise of the same mechanical strength, the weight can be reduced, the inertia force is convenient to reduce, and the functional density and the maximum output power of the engine are further improved.

Meanwhile, the air channel multiplexing and coaxial installation of the central air distribution shaft, the first rotor air distribution shaft and the second rotor air distribution shaft are adopted, so that the engine has the characteristics of compact structure, high rotation coaxiality and small eccentric wear, the performance of the engine can be further improved, and the light structural design is further met so as to meet the use requirements under different scenes.

Meanwhile, the air outlet is arranged in the axial direction parallel to the cylinder, the middle of the cylinder is rotatably provided with the rotating shaft, the two ends of the rotating shaft are respectively provided with the turbine blade and the air compressing blade, when the waste gas discharged from the air outlet is discharged in the axial direction of the cylinder, the turbine blade can be driven to rotate, the turbine blade drives the rotating shaft to rotate and simultaneously drives the air compressing blade to rotate, so that the air inlet end of the cylinder is pressurized, and the air distribution efficiency is further improved.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front view structural schematic diagram of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic structural view of a first rotor gas distribution shaft and a second rotor gas distribution shaft of the present invention;

FIG. 5 is a schematic perspective view of a central gas distribution shaft according to the present invention;

FIG. 6 is a front view of the central gas distribution shaft of the present invention;

FIG. 7 is a schematic cross-sectional view taken at A-A of FIG. 6, without the rotating shaft, turbine blades and compressor blades installed;

FIG. 8 is another angular schematic view of the cross-sectional view taken at A-A of FIG. 6 without the rotating shaft, turbine blades and compressor blades installed;

FIG. 9 is a left side view schematic of the structure of FIG. 6;

FIG. 10 is a right side view schematic of the structure of FIG. 6;

FIG. 11 is a schematic view of a connection structure of a gas distribution shaft and a central gas distribution shaft;

FIG. 12 is a schematic sectional view taken along line A-A of FIG. 11, in which a rotating shaft is mounted at the middle of the cylinder and turbine blades and compressor blades are mounted at the two ends of the rotating shaft;

the labels in the figure are:

1. an air inlet shaft 11 and an air inlet channel; 2. the air compressor comprises a central air distribution shaft 21, a rotating shaft 22, turbine blades 23, air compression blades 24, a connecting flange 25, a cylinder 26, an air inlet 27, a first air inlet 28, a second air inlet 29, a first air outlet 210, a second air outlet 211, an air outlet 212 and an air inlet channel; 3. the rotor comprises a first rotor air distribution shaft 31, a first air nozzle 32, a gap 33 and a first air port; 4. a second rotor air distribution shaft 41, a second air nozzle 42, an exhaust passage 43 and a second air port; 5. A first rotor, 51, a third air tap; 6. a second rotor, 61, a fourth air tap; 7. and a cylinder.

Detailed Description

The present invention will be further described with reference to the following examples, which are intended to illustrate only some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, other embodiments used by those skilled in the art without any creative effort belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; the mechanical connection may be direct or indirect via an intermediate medium, and may be a communication between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

With reference to fig. 1-12, the supercharged valve actuating mechanism of the engine with straight cylinders connected in series in circular shape of the present invention includes an intake shaft 1 with an intake air passage 11, where the intake shaft 1 is used to communicate with an external air source and to input combustion-supporting gas (e.g. air) into the intake shaft 1, where the intake shaft 1 may be fixedly installed on a casing of the engine, so as to fix the intake shaft 1. The air inlet shaft 1 is coaxially and fixedly connected with a central air distribution shaft 2, and the periphery of the central air distribution shaft 2 is sequentially and rotatably connected with a first rotor air distribution shaft 3 used for installing a first rotor 5 and distributing air to the first rotor 5 and a second rotor air distribution shaft 4 used for installing a second rotor 6 and distributing air to the second rotor 6 along the axial direction of the central air distribution shaft 2. Wherein, a plurality of cylinders 7 are arranged on the first rotor 5 and the second rotor 6, and the cylinders on the first rotor 5 and the second rotor 6 are alternately connected in series to form a ring. It is well known in the art that the first rotor 5, the second rotor 6, and the cylinder 7 form a ring structure, and is not an innovative point of the present application, and will be understood and appreciated by those skilled in the art, and will not be described herein. The central air distribution shaft 2 comprises a connecting flange 24 used for being connected with the air inlet shaft 1, the connecting flange 24 is connected with a cylinder body 25, one side of the cylinder body 25 facing the connecting flange 24 is provided with a plurality of air inlets 26 along the radial direction of the cylinder body 24, each air inlet 26 is communicated with an air inlet channel 212, the air inlet channels communicated with the air inlets 26 penetrate through the outer circumferential wall of the cylinder body 25 and form a first air inlet 27 and a second air inlet 28 on the outer circumferential wall of the cylinder body 25, namely, the air inlet channels 212 form air inlets on the end wall of the cylinder body close to the end of the connecting flange, and the air inlet channels 212 form the first air inlet 27 and the second air inlet 28 on the outer circumferential wall of the cylinder body. The first rotor gas distribution shaft 3 is provided with a first gas port 33 which can be communicated with the first gas inlet 27 and is used for distributing gas to the first rotor 5 (the cylinder 7 on the first rotor 5), the second rotor gas distribution shaft 4 is provided with a second gas port 43 which can be communicated with the second gas inlet 28 and is used for distributing gas to the second rotor 6 (the cylinder on the second rotor 6), one side surface of the cylinder 25, which is far away from the connecting flange 24, is provided with a plurality of gas outlets 211 along the radial direction of the cylinder 25, each gas outlet 211 is communicated with a gas outlet channel, and the gas outlet channel communicated with the gas outlets penetrates through the outer circumferential wall of the cylinder and forms a first gas outlet 29 and a second gas outlet 210 on the outer circumferential wall of the cylinder; when the first and second rotor gas distribution shafts 3 and 4 rotate along the central gas distribution shaft 2, the first gas ports 33 can alternately communicate with the first gas inlets 27 and the first gas outlets 29, and the second gas ports 43 can alternately communicate with the second gas inlets 28 and the second gas outlets 210.

In some embodiments, the second rotor air distribution shaft 4 is provided with an exhaust channel 42 mutually communicated with the air outlet 211 of the cylinder 25, and the generated exhaust gas is directly discharged from the exhaust channel 42 after being discharged through the air outlet 211.

In some embodiments, the second rotor gas distribution shaft 4 is a large diameter section, a reduced diameter section and a small diameter section in sequence along the axial direction of the second rotor gas distribution shaft, the inner diameter of the large diameter section of the second rotor gas distribution shaft 4 is matched with the outer diameter of the central gas distribution shaft 2, the outer diameter of the second rotor gas distribution shaft 4 is gradually reduced through the reduced diameter section, and the exhaust passage 42 is arranged on the reduced diameter section and the small diameter section, so that the weight is further reduced, and the light weight design is realized.

Wherein, in some embodiments, the connecting flange 24 and the cylinder 25 are integrally connected to each other. In some embodiments, the attachment flange 24 is integrally formed with the barrel 25.

In some embodiments, at least one section of the cylinder is solid, and the air inlet 26, the air outlet 211, the air inlet channel, and the air outlet channel are disposed on the solid cylinder.

In some embodiments, the side of the cylinder facing the connecting flange has a hollow section, which is used to communicate with the air inlet channel 11 of the air inlet shaft 1, so that the combustion-supporting gas in the air inlet channel 11 is introduced into the cylinder and then enters the first air inlet 27 and the second air inlet 28 through the air inlet 26 and the air inlet channel 212.

In some embodiments, one intake port 26 communicates with one intake passage 212, one intake passage 212 communicates with one first intake port 27, and one intake passage 212 communicates with one second intake port 28. Referring to fig. 7 and 8, in some embodiments, one of the intake ports 26 communicates with one of the intake passages 212, and one of the intake passages 212 communicates with both the first intake port 27 and the second intake port 28.

Similarly, in some embodiments, one of the air outlets 211 communicates with one of the air outlet channels, one of the air outlet channels communicates with one of the first air outlets 29, and one of the air outlet channels communicates with one of the second air outlets 210. In some embodiments, one of the air outlets 211 communicates with one of the air outlet channels, and one of the air outlet channels communicates with both the first air outlet 29 and the second air outlet 210.

Wherein the inlet channels 212 and the outlet channels are independent of each other and alternately spaced on the cylinder 25, and at the same time, the first inlet 27 and the second inlet 28 and the first outlet 29 and the second outlet 210 are alternately spaced from each other. So that the intake and exhaust processes are alternately performed.

The shapes of the air inlet 26, the air outlet 211, the first air inlet 27, the second air inlet 28, the first air outlet 29 and the second air outlet 210 in the present invention are not limited, and may be circular, rectangular with rounded corners, kidney-shaped, trapezoidal, etc.

In some embodiments, the first rotor gas distribution shaft 3 has a small diameter section adapted to the periphery of the central gas distribution shaft 2 and a large diameter section with an inner diameter larger than that of the central gas distribution shaft 2, and one end of the second rotor gas distribution shaft 4 is sleeved on the periphery of the central gas distribution shaft 2 and located in the large diameter section of the first rotor gas distribution shaft 3, so that the first rotor gas distribution shaft 3 and the second rotor gas distribution shaft 4 can rotate along the central gas distribution shaft 2, and the relative rotation of the first rotor gas distribution shaft 3 and the second rotor gas distribution shaft does not affect each other.

In some embodiments, the first air port 33 is mounted with a first air nozzle 31 for distributing air to the first rotor 5, the second air port 43 is mounted with a second air nozzle 41 for distributing air to the second rotor 6, and the large-diameter section of the first rotor air distribution shaft 3 is provided with a notch 32 for exposing the second air nozzle 61. Wherein the size of the gap 32 is larger than the external size of the second air nozzle 41, and the gap 32 should ensure that the second air nozzle 41 does not touch the edge of the gap 32 when the second air nozzle 41 rotates along with the second rotor 6 (i.e. ensure that the second air nozzle 41 does not mechanically collide with the edge of the gap 32).

In some embodiments, a third air nozzle 51 is mounted on the air cylinder 7 of the first rotor 5, and the first air nozzle 31 and the third air nozzle 51 are communicated with each other through a pipeline; and a fourth air nozzle 61 is installed on the air cylinder 7 of the second rotor 6, and the second air nozzle 41 and the fourth air nozzle 61 are communicated with each other through a pipeline. In the use process of the invention, the air distribution flow of the air cylinder on the first rotor and the air cylinder on the second rotor is air inlet shaft-central air distribution shaft-first rotor air distribution shaft (second rotor shaft) -air cylinder on the first rotor (air cylinder on the second rotor), therefore, compared with the prior art, the air distribution process of the air cylinder on the second rotor can be greatly shortened, thereby reducing the number of sealing surfaces again and improving the sealing performance; meanwhile, the length of an exhaust air passage is reduced, so that the storage of waste gas in the air passage (namely the length between the cylinder 7 and the first air port 16 and the second air port) is reduced, and the functional density and the maximum output power of the engine are improved; and owing to reduced the setting of second gas port, second air flue, third gas port on main rotor (first rotor), reduced the setting of vice cylinder air flue on vice rotor (second rotor), can improve the intensity of first rotor and second rotor to be convenient for use under high performance, lightweight scene. Meanwhile, on the premise of the same mechanical strength, the weight can be reduced, the inertia force is convenient to reduce, and the functional density and the maximum output power of the engine are further improved.

In some embodiments, the air inlet 26 and the air outlet 211 are respectively arranged on both sides of the cylinder 25 along a direction parallel to the axial direction of the cylinder 25, so that the air flow can flow along the direction parallel to the cylinder; the middle part of the cylinder 25 is rotatably provided with a rotating shaft 21, one end of the rotating shaft 21 extends out of the air outlet 211 of the cylinder 25 and is provided with turbine blades 22, and the other end of the rotating shaft 25 extends out of the air inlet 26 of the cylinder 25 and is provided with air compressing blades 23. Can drive turbine blade when the axial direction discharge of gas outlet exhaust gas along the barrel rotates, and turbine blade drives the axis of rotation and drives atmospheric pressure blade when rotating to carry out the pressure boost at the air inlet end of barrel, thereby further improve the efficiency of distribution.

The air passage multiplexing type supercharging air distribution mechanism of the invention is characterized in that an air inlet shaft is fixedly connected on a shell of an engine, a central air distribution shaft fixedly connected with the air inlet shaft is fixedly connected, a first rotor air distribution shaft and a second rotor air distribution shaft are rotatably connected at the periphery of the central air distribution shaft, when a first rotor and a second rotor work, the first rotor air distribution shaft and the second rotor air distribution shaft are driven to rotate around the central air distribution shaft, so that a first air port on the first rotor air distribution shaft is alternatively aligned with a first air inlet and a first air outlet on the central air distribution shaft, a second air port on the second rotor air distribution shaft is alternatively aligned with a second air inlet and a second air outlet on the central air distribution shaft, a first air port on the first rotor air distribution shaft is communicated with an air cylinder of a first rotor through a first air nozzle and a third air nozzle, a second air port on the second rotor air distribution shaft is communicated with an air cylinder of a second rotor through a second air nozzle and a fourth air nozzle, thus realizing the distribution (air intake and exhaust) of the air cylinders on the first rotor and the second rotor. Compared with the prior art, the invention adopts the structural design of the central gas distribution shaft and the structural design of the first rotor gas distribution shaft and the second rotor gas distribution shaft: on one hand, the two sides of the central gas distribution shaft are respectively provided with a gas inlet and a gas outlet (namely, the two ends of the cylinder are respectively provided with the gas inlet and the gas outlet), the gas inlet forms a first gas inlet and a second gas inlet on the outer circumferential wall of the cylinder through a gas inlet channel, and the gas outlet forms a first gas outlet and a second gas outlet on the outer circumferential wall of the cylinder through a gas outlet channel, so that only one rotary sealing surface is arranged between the first rotor gas distribution shaft and the central gas distribution shaft, the sealing surfaces in the gas distribution process are reduced, and the sealing performance in the gas distribution process is improved. (in the patent application with publication number CN112177769A, there is a rotary sealing surface between the gas distribution shaft and the rotary gas distribution shaft, there is a rotary sealing surface between the rotary gas distribution shaft and the main rotor, and there is a rotary sealing surface between the third gas port of the main rotor and the gas port of the auxiliary rotor), on the other hand, in the use process of the present invention, the gas distribution flow of the cylinder on the first rotor and the cylinder on the second rotor is the gas inlet shaft-central gas distribution shaft-first rotor gas distribution shaft (second rotor shaft) -cylinder on the first rotor (cylinder on the second rotor), therefore, compared with the prior art, the gas distribution process of the cylinder on the second rotor can be greatly shortened, thereby reducing the number of sealing surfaces again, and improving the sealing performance; meanwhile, the length of an exhaust air passage is reduced, so that the storage of waste gas in the air passage is convenient to reduce, and the functional density and the maximum output power of the engine are convenient to improve; and owing to reduced the setting of second gas port, second air flue, third gas port on main rotor (first rotor), reduced the setting of vice cylinder air flue on vice rotor (second rotor), can improve the intensity of first rotor and second rotor to be convenient for use under high performance, lightweight scene. Meanwhile, on the premise of the same mechanical strength, the weight can be reduced, the inertia force is convenient to reduce, and the functional density and the maximum output power of the engine are further improved.

Meanwhile, the air channel multiplexing and coaxial installation of the central air distribution shaft, the first rotor air distribution shaft and the second rotor air distribution shaft are adopted, so that the engine has the characteristics of compact structure, high rotation coaxiality and small eccentric wear, the performance of the engine can be further improved, and the light structural design is further met so as to meet the use requirements under different scenes.