CN117780493A

CN117780493A - Gemini engine

Info

Publication number: CN117780493A
Application number: CN202211150873.1A
Authority: CN
Inventors: 吴旭民; 刘云
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2024-03-29

Abstract

The invention discloses a twin engine, which comprises a stator, wherein the inside of the stator is annular, and an inner peripheral surface and an outer peripheral surface are formed at the same time, wherein the inner peripheral surface of the stator and the outer peripheral surface of the stator can be coaxially arranged or can be eccentrically arranged; the rotary compressor further comprises at least two blades, the two blades are respectively matched with the inner peripheral surface of the stator and the outer peripheral surface of the stator after penetrating through the first rotor, the inner cavity and the outer cavity are separated into four cavities by the two blades, in the rotation period, the space of the four cavities can be periodically changed, four strokes of air suction, compression, acting and air exhaust are simultaneously realized, the rotary compressor can be applied to an engine with high rotating speed and high thrust-weight ratio requirements, and meanwhile, the rotary compressor can also be applied to an application scene with high air exhaust requirements.

Description

Gemini engine

Technical Field

The present application relates to the field of internal combustion engine technology, and in particular to an engine associated with high thrust to weight ratio or high exhaust efficiency applications.

Background

The existing internal combustion engine is mainly divided into two types, one is an internal combustion engine system which utilizes a reciprocating piston connecting rod to drive a flywheel to rotate, and the other is a rotor internal combustion engine system which utilizes an eccentrically arranged rotor and a stator to rotationally compress fuel gas or fuel gas to deflagrate and push the rotor to do work. Because the reciprocating internal combustion engine system is used for realizing the air compression ratio, the mass and the rotating speed of a crankshaft are continuously improved, the rotating speed of a main shaft of the engine is limited due to the consumption of compression energy storage, and the high-speed motion of a reciprocating piston brings large vibration of an engine body, so that the power output is influenced. And the rotor internal combustion engine system has lower compression ratio, so that the fuel consumption and pollution are out of standard.

In other types of internal combustion engines, blades are used to compress the space between the eccentrically arranged rotor and stator, however, the blades in such engines generally need to reciprocate or swing reciprocally to adapt to the continuously changing rotation path, which results in lower reliability of the structure and is not practical.

Disclosure of Invention

The technical problem that this embodiment of application mainly solves is to provide a vane type internal combustion engine of job stabilization.

In order to solve the technical problems, one technical scheme adopted by the application is as follows:

Provided is a twin engine including:

a stator formed with an inner peripheral surface and/or an outer peripheral surface;

the first rotor and the stator are eccentrically and rotatably arranged; the inner peripheral surface of the stator is tangent to the outer peripheral surface of the first rotor and encloses to form an outer cavity and/or the outer peripheral surface of the stator is tangent to the inner peripheral surface of the first rotor and encloses to form an inner cavity; the outer cavity is a combustion chamber or a compression chamber, and the inner cavity is a combustion chamber or a compression chamber;

and the blade rotating shaft is coaxial with the inner peripheral surface or the outer peripheral surface of the stator, penetrates through the first rotor, is matched with the inner peripheral surface or the outer peripheral surface of the stator and separates the outer cavity or the inner cavity.

The engine provided by the invention further comprises:

the pin shaft is rotatably arranged in the pin shaft groove, and a sliding channel for the blade to penetrate is arranged on the pin shaft;

the blade passes through the pin shaft and the first rotor through the sliding channel.

The second technical scheme that this application adopted is for providing a pair of son engine, its characterized in that includes:

A stator;

a second rotor rotatably provided in the stator, the second rotor being formed with an inner peripheral surface and/or an outer peripheral surface;

the first rotor and the second rotor are eccentrically and rotatably arranged; the inner peripheral surface of the second rotor is tangent to the outer peripheral surface of the first rotor and encloses to form an outer cavity and/or the outer peripheral surface of the second rotor is tangent to the inner peripheral surface of the first rotor and encloses to form an inner cavity; the outer cavity is a combustion chamber or a compression chamber, and the inner cavity is a combustion chamber or a compression chamber;

and the blade is fixedly connected with the second rotor, penetrates through the first rotor and separates the outer cavity or the inner cavity.

By adopting the technical scheme, the engine takes the first rotor and the blades as double rotors or takes the first rotor and the second rotor as double rotors, and the volume of the compression cavity can be compressed to be very small through the rotation of the blades, so that a higher compression ratio can be realized, the blades and the stator only rotate relatively, the stability is high, and the engine can be applied to an engine with high rotating speed and high thrust-weight ratio requirements, and can be also applied to an application scene with high exhaust requirements.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure of embodiments of the invention.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained by those skilled in the art without inventive effort.

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the inner and outer chambers formed simultaneously in one embodiment of the invention;

FIG. 3 is a schematic view of the structure of the shaft and lumen of the blade in one embodiment of the present invention;

FIG. 4 is a schematic view of the structure of the shaft and outer chamber of an embodiment of the present invention;

FIG. 5 is a schematic view of the structure of the first rotor and the second rotor forming the inner and outer cavities in one embodiment of the invention;

FIG. 6 is a schematic view of a first rotor and a second rotor simultaneously forming an inner and outer chamber in accordance with an embodiment of the present invention;

FIG. 7 is a schematic diagram of an exploded construction of an engine in one embodiment of the invention;

FIG. 8 is a schematic view of an internal structure of an engine according to an embodiment of the present invention;

FIG. 9 is a schematic view of the interior of a pin in which the valve core is in a first position, in accordance with one embodiment of the present invention;

FIG. 10 is a schematic view of the structure of the interior of the pin with the valve spool in a second position, the arrows showing the connecting passages, in accordance with one embodiment of the present invention;

FIG. 11 is a schematic view of a pin in an embodiment of the present invention, with arrows showing the connection paths;

FIG. 12 is a schematic view of a pin and blade mating in an embodiment of the invention;

FIG. 13 is a schematic view illustrating a pin and a first branch according to an embodiment of the present invention;

FIG. 14 is a schematic view of the connection of a pin to a connecting slot in an embodiment of the invention, with a first rotor cut away to show the connecting slot;

FIG. 15 is a partially enlarged schematic view of FIG. 14 at D;

FIG. 16 is a schematic view of the movement of a pin axial wedge in one embodiment of the present invention;

FIG. 17 is a schematic illustration of a wedge pushing a spool in an embodiment of the present invention;

FIG. 18 is a schematic illustration of the connection of two blade shafts in an embodiment of the present invention;

FIG. 19 is a schematic diagram of an engine rotated to a second state in accordance with an embodiment of the invention;

FIG. 20 is a schematic diagram of an engine rotating to a first state in an embodiment of the present invention;

FIG. 21 is a schematic diagram of an engine rotating to a third state in an embodiment of the present invention;

FIG. 22 is a schematic diagram of an engine rotating to a fourth state in an embodiment of the present invention;

FIG. 23 is a schematic diagram of an engine rotating to a fifth state in an embodiment of the present invention;

reference numerals illustrate:

stator 100, stator inner peripheral surface 110, stator outer peripheral surface 120, side end surface 130, first annular wall 101, second annular wall 102, air inlet 103, air inlet passage 104, ignition device 105, and air outlet 106;

a first rotor 200, a first rotor outer circumferential surface 210, a first rotor inner circumferential surface 220, a pin shaft groove 201, and a connecting groove 202;

a second rotor 300, a second rotor outer circumferential surface 310, a second rotor inner circumferential surface 320, a second rotor 300a, a second rotor 300b;

an outer lumen 401, an inner lumen 402;

vane 500, first vane 510, gap 511, ventilation channel 512, second vane 520, vane shaft 530, intake loop 531, suction port 532, annular flange 533, annular groove 534;

the pin 600, the first pin 600a, the second pin 600b, the sliding channel 610, the connection passage 620, the check valve 630, the spool 631, the first spool 631a, the second spool 631b, the elastic member 632, the first elastic member 632a, the second elastic member 632b, the connection branch 640, the first branch 641, the second branch 642, and the wedge 650.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

It is also to be understood that the terminology used in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

The embodiment of the invention provides a twin engine, as shown in fig. 1-a, comprising a stator 100 and a first rotor 200, wherein the stator 100 is formed with an inner peripheral surface, the first rotor 200 is formed with an outer peripheral surface, the first rotor 200 is eccentrically arranged in the stator 100 in a rotating way, and the outer peripheral surface of the first rotor 200 is tangential to the inner peripheral surface 110 of the stator and forms an outer cavity 401 in a surrounding way; the rotor also comprises a blade 500, the blade 500 rotates along with the first rotor 200, the rotating shaft of the blade 500 is coaxially arranged with the outer peripheral surface 120 of the stator and rigidly rotates around the rotating shaft, and the blade 500 penetrates out of the first rotor 200 and is matched with the inner peripheral surface of the stator 100 to separate the outer cavity 401.

The matching position of the vane 500 and the inner circumferential surface 110 of the stator and the tangential position T of the inner circumferential surface 110 of the stator and the first rotor 200 divide the outer cavity 401 into two cavities, the vane 500 rotates periodically along with the periodic rotation of the first rotor 200, in one rotation period, the cavity on the front side is continuously reduced, the cavity on the rear side is continuously increased, and the cavity on the rear side of the vane 500 is changed into the cavity on the front side of the vane 500 in the next period in the process of rotating the vane 500 from the tangential position T to the tangential position T.

In an alternative embodiment, as shown in fig. 1-b, the stator 100 is formed with an outer circumferential surface, the first rotor 200 is formed with an inner circumferential surface, the first rotor 200 is sleeved outside the stator 100, the first rotor 200 is eccentrically and rotatably arranged with the stator 100, and the inner circumferential surface of the first rotor 200 is tangential to the outer circumferential surface of the stator 100 and encloses an inner cavity 402; and further includes a vane 500, the vane 500 rotating with the first rotor 200, the rotation shaft of the vane 500 being coaxially disposed with the stator inner circumferential surface 110, and rigidly rotates around the rotation shaft, and the vane 500 penetrates from the outer first rotor 200 and is fitted to the outer circumferential surface of the stator 100, separating the inner cavity 402.

The matching position of the vane 500 and the stator outer circumferential surface 120 and the tangential position T of the stator outer circumferential surface 120 and the first rotor 200 divide the inner cavity 402 into two chambers, the vane 500 rotates periodically along with the periodic rotation of the first rotor 200, in one rotation period, the chamber on the front side is continuously reduced, the chamber on the rear side is continuously increased, and the chamber on the rear side of the vane 500 is changed into the chamber on the front side of the vane 500 in the next period in the process of rotating the vane 500 from the tangential position T to the tangential position T.

When the inner cavity 402 or the outer cavity 401 is applied to the compression chamber of the engine, the chamber at the front side of the vane 500 is a compression chamber, the gas is compressed by the space which is continuously reduced in the rotation period, the chamber at the rear side of the vane 500 is an air suction chamber, the gas is sucked by the space which is continuously increased in the rotation period, and the air suction chamber is converted into the compression chamber in the next period, wherein the gas is compressed in the next period, that is, the air suction and the compression are simultaneously and fully realized in one rotation period, so that the higher air suction and compression efficiency is kept in all the cycles, the compression ratio of the structure is higher, and the efficiency of the engine can be improved; when the inner cavity 402 or the outer cavity 401 is applied to the combustion chamber of the engine, the chamber at the front side of the vane 500 is an exhaust cavity, the gas is discharged through the space continuously reduced in the rotation period, the chamber at the rear side of the vane 500 is a working cavity, the gas in the cavity expands after being ignited to push the vane 500 to rotate in the direction capable of increasing the space of the chamber in the rotation period, and the combusted gas in the chamber can be discharged as the exhaust cavity in the next period, so that the working and the exhaust can be simultaneously realized in the whole course in each rotation period, and the higher working efficiency and the exhaust efficiency can be achieved.

The vane 500 is adapted to the stator inner circumferential surface 110 or the stator outer circumferential surface 120, that is, a seal is established between the vane 500 and the stator inner circumferential surface 110 or the stator outer circumferential surface 120 to separate the inner cavity 402 or the outer cavity 401, and an end of the vane 500 may be illustratively abutted to the stator inner circumferential surface 110 or the stator outer circumferential surface 120.

In an alternative embodiment, as shown in fig. 2, the stator 100 is an annulus, and an inner circumferential surface and an outer circumferential surface are formed at the same time, wherein the stator inner circumferential surface 110 and the stator outer circumferential surface 120 may be coaxially disposed or may be eccentrically disposed, but not limited to this embodiment, the first rotor 200 is annular and eccentrically rotates and is disposed in the annulus, and the first rotor inner circumferential surface 220 and the first rotor outer circumferential surface 210 are simultaneously tangent to the stator outer circumferential surface 120 and the stator inner circumferential surface 110, respectively, and form an inner cavity 402 and an outer cavity 401; and at least two blades 500, wherein the two blades 500 respectively penetrate through the first rotor 200 and then are matched with the inner circumferential surface 110 of the stator and the outer circumferential surface 120 of the stator, so as to separate the inner cavity 402 from the outer cavity 401.

Wherein two blades 500 divide the inner cavity 402 and the outer cavity 401 into four chambers, the space of each of the four chambers varies periodically during a rotation period, two chambers at the front side of the blade 500 are gradually smaller during the rotation period, two chambers at the rear side of the blade 500 are gradually increased during the rotation period, and the chambers at the rear side of the blade 500 are converted into chambers at the front side of the blade 500 during the next rotation period; the inner cavity 402 and the outer cavity 401 can be respectively used as a combustion chamber and a compression chamber, and in one rotation period (360 degrees of rotation) of the first rotor 200, four strokes of air suction, compression, work doing and air exhausting are simultaneously realized, so that higher engine efficiency is achieved.

In an alternative embodiment, as shown in fig. 2 or fig. 6, an annulus is formed in the stator 100, an annular first rotor 200 is rotatably disposed in the annulus, the outer side of the annular rotor 200 is tangent to the outer side of the annulus and encloses an outer cavity 401, the inner side is tangent to the inner side of the annulus and encloses an inner cavity 402, and at least two rotatably disposed vanes 500 are provided, respectively, the inner cavity 402 and the outer cavity 401 being separated, and the separated cavities in the inner cavity 402 and the outer cavity 401 being periodically changed by periodically rotating the vanes 500 about the axis of rotation or annulus of the stator 100. The inner cavity 402 and the outer cavity 401 can be respectively used as a compression chamber and a combustion chamber to form a basic chamber required by the operation of the engine, and by adopting the arrangement mode, the engine is more compact in volume, the space can be further saved, and more minimum units are arranged in a limited space to improve the power, the exhaust quantity and the like.

In an alternative embodiment, as shown in fig. 5, a second rotor 300 and a first rotor 200 are rotatably disposed in the stator 100, and the second rotor 300 and the first rotor 200 are eccentrically rotatably disposed, and as shown in fig. 5b, when the second rotor 300 is disposed outside the first rotor 200, the second rotor inner circumferential surface 320 and the first rotor outer circumferential surface 210 enclose an outer cavity 401; as shown in fig. 5a, when the second rotor 300 is disposed inside the first rotor 200, the second rotor outer circumferential surface 310 and the first rotor inner circumferential surface 220 enclose an inner cavity 402; the second rotor 300 is further fixedly connected with a vane 500, and after the vane 500 passes through the first rotor 200, the inner cavity 402 or the outer cavity 401 is separated.

Wherein the vane 500 divides the inner cavity 402 or the outer cavity 401 into two chambers, as the first rotor 200, the second rotor 300 and the vane 500 are rotated periodically, in one rotation period, the chamber on the front side is continuously decreased, the chamber on the rear side is continuously increased, and the chamber on the rear side of the vane 500 is changed into the chamber on the front side of the vane 500 in the next period during the rotation of the vane 500 from the tangent position T to the return to the tangent position T.

In an alternative embodiment, as shown in fig. 6, two second rotors 300 are rotatably disposed in the stator 100, the two second rotors 300 are sleeved with each other, the second rotor 300a located at the outer side is formed with an inner circumferential surface, the second rotor 300b located at the inner side is formed with an outer circumferential surface, the first rotor 200 is rotatably disposed in an annulus formed by the two second rotors 300, the first rotor inner circumferential surface 220 and one second rotor outer circumferential surface 310 are tangential and are surrounded to form an inner cavity 402, the first rotor outer circumferential surface 210 and the other second rotor inner circumferential surface 320 are tangential and are surrounded to form an outer cavity 401, the two second rotors 300 are fixedly connected with blades 500, and the two blades 500 pass through the first rotor 200 to separate the inner cavity 402 and the outer cavity 401.

Wherein the two blades 500 divide the inner cavity 402 and the outer cavity 401 into two chambers, respectively, as the first rotor 200, the second rotor 300 and the blades 500 are rotated periodically, in one rotation period, the chamber at the front side is continuously decreased, the chamber at the rear side is continuously increased, and the chamber at the rear side of the blades 500 is changed into the chamber at the front side of the blades 500 in the next period during the rotation of the blades 500 from the tangent position T to the return to the tangent position T. The inner cavity 402 or the outer cavity 401 in the above-described structure is equally applicable to a compression chamber or a combustion chamber of an engine.

In an alternative embodiment, as shown in fig. 8, the stator 100 forms an outer circumferential surface by an outer surface of the first annular wall 101, and the first rotor 200 is eccentrically sleeved outside the first annular wall 101; the stator 100 forms a driving inner peripheral surface through the inner surface of the second annular wall 102, and the first rotor 200 is eccentrically and rotatably arranged on the inner side of the first annular wall 101; or the stator 100 is an annulus formed by encircling the inner surface of the second annular wall 102 and the outer surface of the first annular wall 101, the first rotor 200 is annularly sleeved outside the first annular wall 101 and is positioned inside the second annular wall 102, and the first rotor 200, the first annular wall 101 and the second annular wall 102 are eccentrically arranged.

The stator 100 further includes two side end surfaces 130 located at two sides of the first annular wall 101 or the second annular wall 102, where the two side end surfaces 130 enclose an inner cavity 402 with the first annular wall 101 and the first rotor inner peripheral surface 220; or the two side end surfaces 130 are enclosed with the second annular wall 102 and the first rotor peripheral surface 210 to form an outer cavity 401; or both side end surfaces 130 are enclosed with the first annular wall 101, the second annular wall 102, the first rotor inner peripheral surface 220 and the first rotor outer peripheral surface 210 at the same time to form an inner and outer cavity 401.

In an alternative embodiment, the two side end surfaces 130 and the first rotor 200, the second rotor 300 together enclose an inner cavity 402 and/or an outer cavity 401, in which case the air inlet 103, the ignition device 105 or the air outlet 106 may be arranged on the side end surfaces 130, preferably the air inlet 103, the ignition device 105 may be arranged on the front side of the tangent position T of the first rotor 200, the second rotor 300, and the air outlet 106 may be arranged on the rear side of the tangent position T of the first rotor 200, the second rotor 300.

In an alternative embodiment, as shown in fig. 19, when the inner cavity 402 or the outer cavity 401 is used as the compression chamber, the air inlet 103 is provided in the first annular wall 101, the second annular wall 102 or the side end surface 130 of the stator 100, when the vane 500 passes over the air inlet 103, the chamber at the rear side of the vane 500 sucks the fuel gas through the air inlet 103 due to the negative pressure, preferably the air inlet 103 is located at the front side of the tangent position T of the first annular wall 101 or the second annular wall 102 with the first rotor 200, when the vane 500 rotates forward beyond the tangent position T, the air inlet 103 is communicated with the chamber at the rear side of the vane 500, and the chamber is further increased in the rotation period to generate the negative pressure to suck the fuel gas, and when the air inlet 103 is located at the front side of the tangent position T, the air suction is smoother and the whole circumference can perform the air suction.

In this application, the rotation direction of the first rotor 200 is from back to front, the front side is the side where the first rotor 200 rotates close to, and the rear side is the side where the first rotor 200 moves away from.

In an alternative embodiment, as shown in fig. 19, when the inner cavity 402 or the outer cavity 401 is used as a combustion chamber, an ignition device 105 is arranged on the first annular wall 101, the second annular wall 102 or the side end surface 130 of the stator 100, when the vane 500 passes over the ignition device 105, the ignition device 105 ignites high-pressure fuel gas in a cavity at the rear side of the vane 500, preferably the ignition device 105 is positioned at the front side of the first annular wall 101 or the second annular wall 102 at a tangential position T with respect to the first rotor 200, when the vane 500 rotates forwards beyond the tangential position T, the ignition device 105 is communicated with a cavity at the rear side of the vane 500, at the moment, the high-pressure fuel gas in the cavity is ignited, and the fuel gas burns and expands to push the vane 500 to rotate forwards for performing a work stroke, and when the ignition device 105 is positioned at the front side of the tangential position T, the vane 500 can ignite beyond the tangential position T for performing the work stroke to the maximum.

In an alternative embodiment, the first annular wall 101 of the stator 100 and the first rotor inner peripheral surface 220 enclose an inner cavity 402, at this time, the first annular wall 101 is provided with an air inlet 103, meanwhile, an air inlet channel 104 is formed on the inner side of the first annular wall 101, and the space in the middle of the first annular wall 101 is used to form the air inlet channel 104, which is communicated with the air inlet 103 formed on the first annular wall 101, so that the space in the engine is fully utilized.

In an alternative embodiment, when the inner cavity 402 or the outer cavity 401 is used as the combustion chamber, the exhaust port 106 is arranged on the first annular wall 101, the second annular wall 102 or the side end surface 130, and the preferred exhaust port 106 is located at the rear side of the tangential position T of the first annular wall 101 or the second annular wall 102 with the first rotor 200, and when the vane 500 passes over the tangential position T and continues to rotate for one circle, the exhaust gas after combustion in the space in front of the vane 500 is exhausted through the exhaust port 106, and the exhaust port 106 is located at the rear side of the tangential position T, so that the maximum exhaust stroke can be ensured, and the combustion exhaust gas in the inner cavity 402 or the outer cavity 401 is exhausted, so as to improve the exhaust efficiency.

In an alternative embodiment, as shown in fig. 3, the vane 500 is rigidly and rotatably connected to the stator 100 by a vane shaft 530, wherein the vane shaft 530 may be a solid shaft, an annular shaft sleeve, or a rotating ring, and the vane 500 is fixedly connected to the vane shaft 530, so that the rotational relationship between the vane 500 and the stator 100 is more stable by the vane shaft 530.

The exemplary vane shaft 530 may be rotatably sleeved on the stator outer circumferential surface 120, or rotatably disposed in the stator inner circumferential surface 110, or rotatably disposed on the side end surface 130 of the stator 100.

In an alternative embodiment, as shown in fig. 3b, when the vane 500 separates the inner cavity 402, the vane shaft 530 is rotatably sleeved outside the outer circumferential surface 120 of the stator, where the outer circumferential surface of the vane shaft 530 is surrounded by the inner circumferential surface 220 of the first rotor instead of the outer circumferential surface 120 of the stator to form the inner cavity 402, and where the vane 500 is adapted to the outer circumferential surface 120 of the stator, it is understood that the vane 500 is fixedly connected by the vane shaft 530 sleeved on the outer circumferential surface 120 of the stator, so as to separate the inner cavity 402; as shown in fig. 3a, the vane shaft 530 may be further sleeved outside the first rotor 200, and the other end of the connection end of the vane 500 with the vane shaft 530 is adapted to the outer circumferential surface 120 of the stator; as shown in fig. 4b, when the vane 500 separates the outer cavity 401, the vane shaft 530 is rotatably sleeved inside the inner circumferential surface 110 of the stator, and at this time, the inner circumferential surface of the vane shaft 530 is enclosed with the first rotor outer circumferential surface 210 instead of the inner circumferential surface 110 of the stator to form the outer cavity 401, and at this time, the vane 500 is adapted to the inner circumferential surface 110 of the stator, it is understood that the vane 500 is fixedly connected with the vane shaft 530 sleeved on the inner circumferential surface 110 of the stator, so as to separate the outer cavity 401; as shown in fig. 4a, the vane shaft 530 may also be rotatably disposed inside the first rotor 200, and the other end of the vane 500 at the connection end of the vane shaft 530 is fitted to the stator inner circumferential surface 110.

The vane 500 is adapted to the inner circumferential surface 110 or the outer circumferential surface 120 of the stator through the vane shaft 530, and has higher sealing performance compared with the contact between the end of the vane 500 and the inner circumferential surface 110 or the outer circumferential surface 120 of the stator, so that the inner cavity 402 and the outer cavity 401 can be better separated, and meanwhile, the rotation of the vane 500 is more stable.

In an alternative embodiment, as shown in fig. 18 and 19, when the vane shaft 530 is sleeved outside the stator outer circumferential surface 120 and the air inlet 103 is located on the stator outer circumferential surface 120, an air inlet loop 531 is disposed on a rotation contact surface between the inner side of the vane shaft 530 and the stator outer circumferential surface 120, the air inlet loop 531 is circumferentially disposed, when the vane shaft 530 rotates, the air inlet loop 531 is always communicated with the air inlet 103, and an air inlet 532 communicating with the air inlet loop 531 is disposed on the vane shaft 530, so as to realize air inlet to the inner cavity 402, preferably, the air inlet 532 may be located at the rear side of the vane 500, so that an air inlet stroke can be completed through the air inlet 532 in a process that a cavity at the rear side of the vane 500 increases along with rotation of the vane 500.

The air inlet 531 may be formed inside the vane shaft 530, on the outer circumferential surface 120 of the stator, or partially inside the vane shaft 530 and partially on the outer circumferential surface 120 of the stator, which form the air inlet 531.

In an alternative embodiment, as shown in fig. 7 and 8, the first rotor 200 is provided with a pin 600 groove 201 along the direction parallel to the axial direction at the position where the blade 500 penetrates, the pin 600 groove 201 is rotatably provided with a pin 600, and the pin 600 is provided with a sliding channel 610 for the blade 500 to penetrate and penetrate; the vane 500 passes through the pin 600 and the first rotor 200 through the sliding channel 610 and the pin 600 slot 201; when the blade 500 rotates along with the first rotor 200, since the rotation shaft of the blade 500 and the rotation shaft of the first rotor 200 are eccentrically rotated, and in one rotation period, the angle of the blade 500 relative to the first rotor 200 can be periodically changed, and by arranging the pin 600 groove 201 and the pin 600 on the first rotor 200, when the blade 500 rotates relative to the penetrating position, the pin 600 can rotate in the pin 600 groove 201 by a small angle, so that the sealing effect of the blade 500 at the penetrating position of the first rotor 200 is improved, and meanwhile, compared with other engines in the prior art, in the application, other reciprocating movement or swinging components except the pin 600 can reciprocally rotate by a small angle are not provided, so that the device is more suitable for the working condition of high rotation speed of the engine.

In an alternative embodiment, as shown in fig. 3, 7 and 8, the stator 100 is an annulus, and is formed with coaxial inner peripheral surface and outer peripheral surface, the first rotor 200 is annular, and is eccentrically rotatably disposed in the annulus, and the first rotor inner peripheral surface 220 and the first rotor outer peripheral surface 210 are simultaneously tangential to the stator outer peripheral surface 120 and the stator inner peripheral surface 110 respectively, and at this time, the rotor is 180 ° away from two tangential positions T of the stator 100, and an inner cavity 402 and an outer cavity 401 are formed; the stator further comprises at least two blades 500, wherein the first blade 510 and the second blade 520 respectively penetrate through the first rotor 200 and then are matched with the inner circumferential surface 110 of the stator and the outer circumferential surface 120 of the stator, so as to separate the inner cavity 402 from the outer cavity 401. The coaxially arranged inner and outer stator peripheral surfaces 110 and 120 can make the rotation axes of the first and second blades 510 and 520 coaxial, thereby improving the coaxiality of the engine and further enhancing the stability of the engine at high rotation speeds.

In an alternative embodiment, the vane 500 includes a first vane 510 and a second vane 520, where the vane shafts 530 are fixedly connected to the first vane 510 and the second vane 520, and the two vane shafts 530 are coaxially and rotatably disposed, as shown in fig. 18, and exemplary, the two vane shafts 530 are sleeved outside the outer circumferential surface 120 of the stator or inside the inner circumferential surface 110 of the stator; the two blade shafts 530 are in rotational contact through the end surfaces, and of the two end surfaces in relative rotational contact of the two blade shafts 530, one end surface is provided with an annular convex edge 533 in the circumferential direction, and the other end surface is provided with an annular groove 534, and the annular convex edge 533 rotates along the annular groove 534. On the one hand, the coaxiality of the relative coaxial rotation of the two blade shafts 530 is improved, on the other hand, the end surfaces of the two blade shafts 530 can be sealed, so that the inner peripheral surface and the outer peripheral surface of the two blade shafts 530 can better form an outer cavity 401 or an inner cavity 402 with the side end surface 130 of the stator 100 and the first rotor 200.

In an alternative embodiment, the first vane 510 and the second vane 520 are separated by 30 ° to 180 ° at the position where the first rotor 200 passes out, and the tangent position T in the inner cavity 402 and the outer cavity 401 are separated by 180 ° so that the first vane 510 and the second vane 520 can simultaneously cross the tangent position T in one rotation period when passing out from the position 180 ° apart, and the two chambers enter the next state at the same time, and when the inner cavity 402 or the outer cavity 401 is used as a combustion chamber, the stroke of the combustion work is approximately 360 °, so that when the vane 500 in the chamber is used as the combustion chamber, the angle of the vane 500 in the chamber is set 150 ° at the maximum, and the rest forms can also meet the effect of pushing the work by the gas combustion expansion in the combustion chamber.

In an alternative embodiment, the first vane 510 is adapted to separate the inner cavity 402 from the outer circumferential surface 120 of the stator, but since the first vane 510 also partially extends into the outer cavity 401, in order to prevent the first vane 510 from sealing the outer cavity 401, as shown in fig. 8, a gap 511 may be left between the first vane 510 and the inner circumferential surface 110 of the stator forming the outer cavity 401, or an air ventilation channel 512 may be formed at an end of the first vane 510 close to the inner circumferential surface 110 of the stator, and along with the rotation of the vane 500, the gap 511 and the air ventilation channel 512 may be only located in the outer cavity 401, not located in the inner cavity 402, and not affect the sealing of the inner cavity 402 by the first vane 510.

In an alternative embodiment, as shown in fig. 19, a connecting groove 202 is provided in the first rotor 200 to communicate the inner circumferential surface and the outer circumferential surface of the first rotor 200, and thus to communicate the inner cavity 402 and the outer cavity 401, and when the inner cavity 402 and the outer cavity 401 are used as a combustion chamber and a compression chamber of an engine, respectively, the connecting groove 202 can convey the gas compressed in the compression chamber to the combustion chamber, so that the gas is ignited or compression-ignited in the combustion chamber, and the working stroke is performed to push the vane 500 to advance.

Wherein the connection port of the optional connection groove 202 and the outer cavity 401 is positioned at the rear side where the second blade 520 of the first rotor 200 penetrates, i.e. is communicated with the cavity which is continuously increased in one stroke in the outer cavity 401; when the outer cavity 401 is used as a combustion chamber, the high-pressure gas temporarily stored in the connecting groove 202 enters the outer cavity 401 through the connecting port, and is ignited or compression-ignited, so as to do work to push the blade 500 to advance; wherein the connection port of the optional connection slot 202 and the inner cavity 402 is positioned at the rear side of the first rotor 200 where the first blade 510 penetrates, i.e. is communicated with a cavity in the inner cavity 402 which is continuously compressed in the formation process; when the inner cavity 402 is used as a compression chamber, the chamber compresses the fuel gas, and when the chamber is compressed to the minimum, the fuel gas can be pressed into the connecting groove 202 through the connecting port, so that the compression ratio is improved; also in certain engine arrangements, when outer chamber 401 is used as a compression chamber, the connection port connecting slot 202 with outer chamber 401 may also be located on the front side where second vane 520 of first rotor 200 passes through; and when the inner cavity 402 is used as combustion, the connection port connecting the slot 202 and the inner cavity 402 may also be located at the rear side where the first vane 510 of the first rotor 200 passes.

In an alternative embodiment, as shown in fig. 7, 8, 15, 21 and 22, the first rotor 200 is provided with a pin 600 groove 201 along a direction parallel to the axial direction, the pin 600 groove 201 is located at the penetrating position of the blade 500, the pin 600 is rotatably arranged in the pin 600 groove 201, a sliding channel 610 through which the blade 500 penetrates is arranged on the pin 600, and the first blade 510 or the second blade 520 penetrates through the pin 600 and the first rotor 200 through the sliding channel 610; the pin shaft 600 is provided with a connecting passage 620, one end of the connecting passage 620 is communicated with the connecting groove 202, and the other end is communicated with the inner cavity 402 or the outer cavity 401; the connection groove 202 communicates with the inner cavity 402 or the outer cavity 401 through a communication passage provided in the pin 600.

In an alternative embodiment, as shown in fig. 9-17, a check valve 630 is disposed in the connection passage 620, and when the pressure of the inner cavity 402 or the outer cavity 401 is greater than the preset pressure of the check valve 630, the check valve 630 is opened, and the inner cavity 402 or the outer cavity 401 is communicated with the connection groove 202; when the pressure in the inner cavity 402 or the outer cavity 401 is less than the preset pressure of the check valve 630, the check valve 630 is closed. For example, when the inner cavity 402 or the outer cavity 401 is used as the compression cavity, after the high-pressure fuel gas in the connecting groove 202 is ignited and expanded and discharged, when the inner cavity 402 or the outer cavity 401 is used as the compression cavity to compress the fuel gas, the pressure of the inner wall or the outer cavity 401 is larger than the preset pressure of the one-way valve 630, the one-way valve 630 is pushed open at this time, and the compressed fuel gas can be successfully introduced into the connecting groove 202 for temporary storage at this time; for example, when the inner cavity 402 or the outer cavity 401 is used as the combustion cavity, the gas in the inner cavity 402 or the outer cavity 401 is ignited, the gas expands to generate huge pressure after being ignited, the one-way valve 630 is pushed open, the connection groove 202 is kept in communication with the inner cavity 402 or the outer cavity 401, and then the gas in the connection groove 202 is also combusted and expanded until the exhaust is performed, the exhaust gas in the connection groove 202 and the inner cavity 402 or the outer cavity 401 which are communicated is discharged until the gas pressure is smaller than the preset pressure, and at the moment, the one-way valve 630 is closed.

In an alternative embodiment, the valve core 631 is slidably disposed in the connecting channel 620, and the valve core 631 has two states in the connecting channel 620, as shown in fig. 9 and 10, the connecting channel 620 is opened when the valve core 631 slides to the first position a, and the connecting channel 620 is closed when the valve core 631 slides to the second position B; and one end of the connection passage 620, which is communicated with the inner cavity 402 or the outer cavity 401, is used for enabling the high-pressure fluid of the inner cavity 402 or the outer cavity 401 to push the valve core 631 to slide to the first position a, an elastic member 632 is further arranged in the connection passage 620 and is used for pushing the valve core 631 to return to the second position B, and at the moment, the elastic force generated by the elastic member 632 is the preset pressure, namely, when the pressure of the inner cavity 402 or the outer cavity 401 is greater than the elastic force of the elastic member 632, the valve core 631 can be pushed to slide to the second position B and the connection passage 620 can be opened.

In an alternative embodiment, the sliding direction of the valve core 631 is not collinearly arranged with the acting direction of the high-pressure fluid in the connecting groove 202, so that the sliding of the valve core 631 is not influenced by the pressure of the fluid in the connecting groove 202, the sliding of the valve core 631 is not influenced by the pressure in the connecting groove 202, the sliding of the valve core 631 is only influenced by the elastic piece 632 and the pressure in the inner cavity 402 or the outer cavity 401, and the preferred included angle between the sliding direction of the valve core 631 and the acting direction of the pressure in the connecting groove 202 on the valve core 631 is 90 degrees, so that the influence of the pressure in the connecting groove 202 is completely discharged.

In an alternative embodiment, as shown in fig. 12-17, an opening position C is provided on the vane 500 or on the side end surface 130 of the stator 100, for opening the valve core 631 at this position when the pin 600 slides to this position, since the valve core 631 provided in the pin 600 is a one-way valve 630 valve core 631, the valve core 631 cannot be opened except when activated by the pressure of the inner cavity 402 or the outer cavity 401, the valve core 631 can be opened when the valve core 631 slides to a specific position or rotates to a specific angle with the vane 500, and when the inner cavity 402 or the outer cavity 401 is used as a combustion chamber, the valve core 631 relatively moves to the opening position C at this time, the connecting passage 620 in the pin 600 is actively opened, when the high-pressure fuel in the connecting groove 202 is communicated to the inner cavity 402 or the outer cavity 401, after further ignition, the high-pressure fuel is further expanded, work is performed while maintaining the pressure of the inner cavity 402 or the outer cavity 401, and further maintaining the valve core 631 to be opened, so that the connecting groove 202 is kept in communication with the inner cavity 402 or the outer cavity 401, and the exhaust gas is discharged from the inner cavity 402 or the outer cavity 401 in synchronization with each other in the next exhaust groove 202.

For example, when the opening position C is provided on the vane 500 or the side end surface 130 of the stator 100, and the pin 600 slides to the opening position C, the spool 631 slides to the first position a to open the connection passage 620.

Illustratively, the opening position C is located at the end or root of the vane 500, or the opening position C is located at the tangential position T of the stator 100 and the first rotor 200, when the first rotor 200 rotates to the tangential position T, since the pin 600 slides relative to the vane 500, the pin 600 slides to the end or root of the vane 500, and the opening position C is set to the end or root of the vane 500, so that when the vane 500 passes over the tangential position and enters the next rotation period, the valve body in the pin 600 can communicate with the connecting passage 620 through the opening position C, so as to smoothly transfer the high-pressure fuel gas in the connecting slot 202 to the inner cavity 402 or the outer cavity 401 as the combustion chamber.

In an alternative embodiment, as shown in fig. 12 and 13, a connection branch 640 is disposed on the contact surface of the pin 600 and the vane 500 or the contact surface of the pin 600 and the side end surface 130 of the stator 100, two ends of the connection branch 640 are respectively communicated with the connection groove 202 and the inner cavity 402 or the outer cavity 401, when the pin 600 slides to the opening position C, the connection branch 640 is conducted, and the connection branch 640 includes a first branch 641 disposed on the pin 600 and a second branch 642 disposed on the side end surface 130 of the vane 500 or the stator 100, the first branch 641 is communicated with the connection groove 202, the second branch 642 is communicated with the inner cavity 402 or the outer cavity 401, and when the pin 600 slides to the opening position C, the first branch 641 and the second branch 642 are aligned to enable high-pressure fuel gas in the connection groove 202 to be introduced into the inner cavity 402 or the outer cavity 401, and to open the valve element 631, so as to keep the valve body open, and the connection passage 620 to be conducted; while the pin 600 is not slid to the open position C, the connecting leg 640 is not conductive, and illustratively, the first leg 641 and the second leg 642 are misaligned, disconnecting the connecting leg 640.

In an alternative embodiment, as shown in fig. 16 and 17, a wedge 650 is provided on the side end 130 of the vane 500 or the stator 100, and the wedge 650 is located at the opening position C, and when the pin 600 slides along the vane 500 to the opening position C, the pin 650 acts with the wedge 650, so that the valve core 631 is pushed by the wedge 650 and moves to the first position a.

The following description of the embodiments of the present invention with reference to the accompanying drawings provides a working cycle of a twin engine:

referring to fig. 7-23, the engine includes a stator 100, an annulus, a stator inner circumferential surface 110 and a stator outer circumferential surface 120 are formed in the stator 100, a first rotor 200 is rotatably disposed in the stator 100, the first rotor 200 is annular, the first rotor outer circumferential surface 210 is tangential to the stator inner circumferential surface 110 and encloses an outer cavity 401, and the outer cavity 401 is a combustion chamber;

the outer peripheral surface of the stator 100 is also rotatably provided with two vane shafts 530, the two vane shafts 530 are fixedly connected with the first vane 510 and the second vane 520 respectively, an included angle of the two vanes 500 is 180 degrees, the outer peripheral surfaces of the two vane shafts 530 are tangential to the inner peripheral surface of the first rotor 200 and enclose to form an inner cavity 402, the inner cavity 402 is a compression chamber, a connecting groove 202 is arranged in the first rotor 200 and is respectively communicated with the inner cavity 401 and the outer cavity 401, wherein the first vane 510 passes through the first rotor 200 and then contacts with the outer peripheral surface 120 of the stator to separate the outer cavity 401, a gap 511 is reserved between the second vane 520 and the outer peripheral surface 120 of the stator after passing through the first rotor 200, and the inner cavity 402 is separated and meanwhile the communication of the outer cavity 401 is not influenced;

The first blade 510 passes through the first rotor 200 through the first pin 600a, the second blade 520 passes through the first rotor 200 through the second pin 600b, the first pin 600a is internally provided with a first valve core 631a and a first elastic piece 632a, the second pin 600b is internally provided with a second valve core 631b and a second elastic piece 632b, the connecting groove 202 is connected with the outer cavity 401 through the first pin 600a, the connecting groove 202 is connected with the inner cavity 402 through the second pin 600b, when the pressure of the outer cavity 401 is greater than that of the first elastic piece 632a, the first pin 600a is opened, when the pressure of the inner cavity 402 is greater than that of the second elastic piece 632b, the second pin 600b is opened, the second pin 600b is internally provided with a connecting branch 640 and an opening position C, and the opening position C is positioned at the outer end of the second blade 520.

An air inlet 103 is further arranged in the inner peripheral surface 110 of the stator, an air inlet loop 531 communicated with the air inlet 103 is arranged on the inner side of the blade shaft 530 along the circumferential direction, an air suction port 532 communicated with the air inlet loop 531 is arranged on the blade shaft 530, and the air suction port 532 is positioned on the rear side of the second blade 520; an ignition device 105 is provided on the front side of the stator inner peripheral surface 110 and the first rotor 200, and an exhaust device is provided on the rear side.

The working principle of the engine in this embodiment is described below by taking the rotation of the first vane 510 over the tangential position T of the vane shaft 530 and the first rotor 200 in the inner cavity 402 as a starting point, and the rotation of the second vane 520 over the tangential position T of the first rotor 200 and the inner tangential surface of the stator 100 in the outer cavity 401 as a starting point:

As shown in fig. 20, when the first vane 510 passes the tangential position T (illustratively, rotates 30 °), the suction chamber α is formed at the rear side of the first vane 510, and the gas is sucked through the suction port 532 opened at the rear side of the first vane 510 sequentially through the suction loop 531 and the gas inlet 103; the front side of the first vane 510 forms a compression chamber β to compress the gas sucked in the previous cycle, referring to fig. 19.

As shown in fig. 22, when the first vane 510 rotates for one revolution to approach the tangential position T (for example, rotation 335 °), the suction chamber α at the rear side of the first vane 510 completes the suction of the fuel gas, and the compression chamber β at the front side of the first vane 510 compresses the flue gas sucked in the previous cycle, and at this time, the compression chamber β at the front side of the first vane 510 compresses the first elastic member 632a by acting on the first valve element 631a in the first pin 600a, thereby connecting the connecting slot 202 and the compression chamber β through the connecting passage 620, so that the high-pressure fuel gas enters the connecting slot 202 of the first rotor 200.

As shown in fig. 20, after the second blade 520 passes the tangential position T (for example, 30 ° of rotation), the front side of the second blade 520 sheet 510 forms an exhaust cavity δ, during the following rotation, the exhaust gas from the combustion in the previous cycle is exhausted through the exhaust port 106, the rear side of the second blade 5200 forms a working cavity γ, at this time, the second pin 600b slides relative to the second blade 520 to the end of the second blade 520 that acts on the inner circumferential surface 110 of the stator, that is, slides to the opening position C, the high-pressure gas in the connecting slot 202 enters the working cavity γ through the connecting branch 640 and compresses the second elastic member 632b, so as to keep the connecting passage 620 of the second pin 600b open, during the following rotation, the working cavity γ and the gas in the connecting slot 202 are ignited, and then the second blade 520 is pushed to rotate to perform work.

As shown in fig. 21, when the second blade 520 rotates to cross the exhaust port 106 (exemplary rotation 340 °), the working chamber γ is communicated with the exhaust port 106, at this time, the working chamber γ and the connecting groove 202 are instantaneously connected with the outside, so as to discharge the high-pressure gas synchronously, during the discharging process, since the connecting passage 620 in the second pin 600b is kept open, the air pressure of the working chamber γ and the connecting groove 202 is synchronously reduced, and when the air pressure is reduced to be smaller than the preset elastic force of the second elastic member 632b, the second elastic member 632b pushes the second valve core 631b to close the connecting passage 620, and the end is connected with the communication between the connecting groove 202 and the outer cavity 401, so that the connecting groove 202 can be communicated with the compression chamber of the inner cavity 402 to supplement the high-pressure gas in the next stage, as shown in fig. 22 and 23.

By the above working principle, a double cycle of compression and work is realized in the process that the first rotor 200 rotates 360 °.

The fuel used in the invention is not fixed, but is specifically adjusted according to the use scene, for example, gasoline, diesel oil, kerosene, alcohol, various combustible gases, liquid and the like are used as fuels, and diesel oil with poor gas capability can also be preheated to reach the boiling point by adding a heating device, and then mixed with air through throttle valve adjustment and then enters a compression cycle.

The sizes of the structural parts are not fixed, but are large and small according to the use scene, for example, the minimum size is 1 square centimeter, and the maximum displacement of 1 hundred million cubic meters can be achieved.

The application of the present invention is not limited to outputting the torque force of the first rotor 200, the second rotor 300 or the vane shaft 530 through the output shaft, but also includes outputting the thrust force by exhausting the exhaust gas through the exhaust port 106, and the ratio of the torque force output to the exhaust gas output can be changed by adjusting the rotation period, and meanwhile, the torque force output can be used in all torque force occasions, and the jet output is not limited to the use of the aircraft.

Specific applications for the present invention include, but are not limited to, aerospace or related high thrust-weight applications in general and other applications such as racing vehicles, generators, and combined engines.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any equivalent modifications or substitutions will be apparent to those skilled in the art within the scope of the present application, and these modifications or substitutions should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A twin engine, comprising:

the first rotor and the stator are eccentrically and rotatably arranged;

the inner peripheral surface of the stator is tangent to the outer peripheral surface of the first rotor and encloses an outer cavity and/or,

the outer peripheral surface of the stator is tangent to the inner peripheral surface of the first rotor, and an inner cavity is formed by surrounding; the outer cavity is a combustion chamber or a compression chamber, and the inner cavity is a combustion chamber or a compression chamber;

2. A twin engine as defined in claim 1, wherein,

the stator includes:

the outer surface of the first annular wall forms the outer peripheral surface, and the first rotor is eccentrically sleeved outside the first annular wall and/or the first rotor is eccentrically sleeved outside the first annular wall;

the inner surface of the second annular wall forms a driving inner peripheral surface, and the first rotor is eccentrically and rotatably arranged at the inner side of the first annular wall;

the two side end surfaces are respectively positioned at two sides of the first annular wall or the second annular wall; the side end face and the first annular wall and the inner peripheral surface of the first rotor jointly enclose to form the inner cavity, or the side end face and the second annular wall and the outer peripheral surface of the first rotor jointly enclose to form the outer cavity.

3. A twin engine as defined in claim 2, wherein,

the first annular wall, the second annular wall or the side end face is provided with an air inlet or an ignition device;

the air inlet or the ignition device is positioned at the front side of the tangent position of the first annular wall or the second annular wall and the first rotor.

4. A twin engine as defined in claim 3, wherein,

the first annular wall is provided with the air inlet;

and an air inlet channel is further formed in the inner side of the first annular wall and communicated with the air inlet.

5. A twin engine as defined in claim 2, wherein,

the first annular wall, the second annular wall or the side end face is provided with an exhaust port;

the exhaust port is positioned at the rear side of the tangent position of the first annular wall or the second annular wall and the first rotor.

6. A twin engine as defined in claim 1, further comprising:

and the blade shaft is coaxially and rotatably arranged with the inner peripheral surface or the outer peripheral surface of the stator, and the blade is fixedly connected with the blade shaft.

7. A twin engine as defined in claim 6, wherein,

the blade shaft is a shaft sleeve and is sleeved on the inner side of the inner peripheral surface or the outer side of the outer peripheral surface of the stator, the outer peripheral surface of the blade shaft and the inner peripheral surface of the first rotor are enclosed to form the inner cavity, or the inner peripheral surface of the blade shaft and the outer peripheral surface of the first rotor are enclosed to form the outer cavity;

The blades are matched with the inner peripheral surface or the outer peripheral surface of the stator through the blade shafts, and divide the inner cavity into a working cavity and a discharging cavity or divide the inner cavity into a suction cavity and a compression cavity.

8. A twin engine as defined in claim 7, wherein,

an air inlet is formed in the outer peripheral surface of the stator;

an air inlet loop is arranged on the rotation contact surface of the blade shaft and the stator along the circumferential direction, and the air inlet loop is communicated with the air inlet;

the blade shaft is also provided with an air suction port, and the air suction port is communicated with the air inlet loop;

the suction port is located at the rear side of the vane.

9. A twin engine as defined in claim 1, further comprising:

10. A twin engine as defined in any one of claims 1-9,

the stator is formed with a coaxial inner peripheral surface and an outer peripheral surface, the first rotor is annular and eccentrically rotates with the stator, the inner peripheral surface of the first rotor is tangent to the outer peripheral surface of the stator, and the outer peripheral surface of the first rotor is tangent to the inner peripheral surface of the stator;

The blades comprise a first blade and a second blade, respectively penetrate through the first rotor, then are matched with the inner peripheral surface of the stator and the outer peripheral surface of the stator, and respectively separate the outer cavity from the inner cavity.

11. A twin engine as defined in claim 10, wherein,

the blade shafts are two, the first blade and the second blade are fixedly connected with the two blade shafts respectively, and the two blade shafts are coaxially arranged in a rotating mode.

12. A twin engine as defined in claim 10, wherein,

the distance between the two positions of the first blade and the second blade, where the first rotor penetrates, is 30-180 degrees.

13. A twin engine as defined in claim 10, wherein,

and a gap is reserved between the outer side of the first blade and the inner peripheral surface of the stator or a ventilation channel is formed between the outer side of the first blade and the inner peripheral surface of the stator.

14. A twin engine as defined in any of claims 10-13,

the first rotor is provided with a connecting groove, and two ends of the connecting groove are respectively communicated with the inner peripheral surface and the outer peripheral surface of the first rotor and are used for communicating the outer cavity and the inner cavity;

one of the outer chamber and the inner chamber is the combustion chamber and the other is the compression chamber.

15. A twin engine as defined in claim 14, wherein,

the connecting port of the connecting groove and the outer cavity is positioned at the rear side or the front side of the passing position of the second blade on the first rotor;

the connecting port of the connecting groove and the inner cavity is positioned at the front side or the rear side of the first blade passing position on the first rotor.

16. A twin engine as defined in claim 14 or 15, further comprising:

the first blade or the second blade passes through the pin shaft and the first rotor through the sliding channel;

the pin shaft is provided with a connecting passage, one end of the connecting passage is communicated with the connecting groove, and the other end of the connecting passage is communicated with the inner cavity or the outer cavity.

17. A twin engine as defined in claim 16, in which,

a one-way valve is arranged in the connecting passage, and when the pressure of the inner cavity or the outer cavity is larger than the preset pressure of the one-way valve, the one-way valve is opened, and the inner cavity or the outer cavity is communicated with the connecting groove;

And when the pressure of the inner cavity or the outer cavity is smaller than the preset pressure of the one-way valve, the one-way valve is closed.

18. A twin engine as defined in claim 16, in which,

the valve core is slidably arranged in the connecting passage, the valve core has two states in the connecting passage, the connecting passage is opened when the valve core is positioned at a first position, and the connecting passage is closed when the valve core is positioned at a second position;

one end of the connecting passage is communicated with the inner cavity or the outer cavity and used for enabling high-pressure fluid in the inner cavity or the outer cavity to push the valve core to slide to the first position, and an elastic piece is further arranged in the connecting passage and used for pushing the valve core to reset to the second position.

19. A twin engine as defined in claim 18, wherein,

the sliding direction of the valve core is not collinear with the acting direction of the high-pressure fluid in the connecting groove.

20. A twin engine as defined in any one of claims 17 or 18,

and the blade or the side end surface of the stator is provided with an opening position, and the opening position is used for enabling the valve core to slide to a first position when the pin shaft slides to the opening position.

21. A twin engine as defined in claim 20, in which,

The opening is positioned at the end or the root of the blade, or;

the opening position is positioned at a tangential position of the stator and the first rotor.

22. A twin engine as defined in claim 20, in which,

the connecting device comprises a stator and is characterized in that a connecting branch is arranged on the contact surface of the pin shaft and the blade or the contact surface of the pin shaft and the side end surface of the stator, two ends of the connecting branch are respectively connected with the connecting groove and the inner cavity or the outer cavity, and when the pin shaft slides to the opening position, the connecting branch is conducted.

23. A twin engine as defined in claim 22, in which,

the connecting branch comprises a first branch and a second branch, the first branch is positioned on the pin shaft, the second branch is positioned on the contact surface of the blade and the pin shaft, or the second branch is positioned on the contact surface of the side end surface of the stator and the pin shaft, and the second branch is positioned on the opening position.

24. The twin engine as defined in claim 20, wherein a wedge is provided on a contact surface of the vane with the pin, the spool and the wedge moving to a first position when the pin slides along the vane to the wedge; or alternatively, the first and second heat exchangers may be,

And a wedge block is arranged on the contact surface of the side end surface of the stator and the pin shaft, and when the pin shaft rotates to the wedge block along with the blade, the valve core and the wedge block move to a first position under the action of the valve core and the wedge block.

25. A twin engine, comprising;

a stator;