CN113898465B - Supercharging air distribution mechanism of annular series straight cylinder engine and annular straight cylinder engine - Google Patents

Supercharging air distribution mechanism of annular series straight cylinder engine and annular straight cylinder engine Download PDF

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Publication number
CN113898465B
CN113898465B CN202111218642.5A CN202111218642A CN113898465B CN 113898465 B CN113898465 B CN 113898465B CN 202111218642 A CN202111218642 A CN 202111218642A CN 113898465 B CN113898465 B CN 113898465B
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air
rotor
shaft
cylinder
distribution shaft
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CN113898465A (en
Inventor
杨聪楠
徐海军
唐源江
孙承亮
高雪
张国卿
徐藜洋
徐小军
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National University of Defense Technology
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National University of Defense Technology
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/40—Other reciprocating-piston engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1015—Air intakes; Induction systems characterised by the engine type
    • F02M35/10157—Supercharged engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)

Abstract

The application belongs to the technical field of annular engines, and discloses a supercharging air distribution mechanism of an annular series straight-cylinder engine and the annular straight-cylinder engine, which aim to solve the problems that the existing annular engine is poor in sealing performance and cannot meet the use under the conditions of high performance and light weight. The application comprises an air inlet shaft with an air inlet air 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 channel.

Description

Supercharging air distribution mechanism of annular series straight cylinder engine and annular straight cylinder engine
Technical Field
The application 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 to the piston engine.
Background
The principle of the reciprocating piston engine is simple, the technology is mature, the reciprocating piston engine is widely applied to various fields, but is limited by the characteristics of reciprocating motion of the piston and the characteristics of a traditional crank connecting rod mechanism, the traditional reciprocating piston engine is difficult to obviously improve the power density and the maximum output power, and in order to improve the power density and the maximum output power of the engine, a feasible method is to serially arrange a plurality of cylindrical cylinders which are originally axially arranged in parallel along the same circumferential direction, realize reciprocating motion of the piston relative to the cylinders through a special differential mechanism, and the cylinders and the piston rotate around a main shaft fixed shaft, so that the cylinders can complete a plurality of thermodynamic processes in the process of rotating the main shaft for one circle, further realize multiple acting, and achieve the purposes of improving the power density and the maximum output power.
However, the engine cylinders adopt annular serial layout, and the problem is that the cylinders do unidirectional fixed-axis rotation around the main shaft of the engine, and the air inlet, the air exhaust and other processes cannot be realized by using the traditional valve structure. The air inlet and exhaust processes are the precondition and basis for the continuous and stable operation of the internal combustion piston engine.
In order to solve the problem, the inventor submits a patent application with publication number of CN112177769A, and the patent is realized by alternately aligning an air inlet and an air outlet on a gas distribution shaft with a first air port and a second air port on a rotary gas distribution shaft sleeve, so that gas distribution of each cylinder of the annular series engine is realized.
In the mechanism, the air distribution (air inlet and air outlet) of the auxiliary rotor is required to pass through the main rotor, namely, the auxiliary rotor is communicated with the rotary air 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 on the main rotor is communicated with the third air port on the main rotor through a second air passage; the auxiliary rotor is provided with an auxiliary rotor air port, an auxiliary cylinder air passage and an auxiliary cylinder seat hole, and a third air port of the main rotor is communicated with the auxiliary rotor air port, so that the auxiliary rotor is communicated with the auxiliary cylinder seat hole of the auxiliary rotor. That is, the auxiliary rotor gas distribution process is as follows: the air distribution shaft, the rotary air distribution shaft and the main rotor (sequentially pass through a second air port, a second air passage, a third air port, an auxiliary rotor air port, an auxiliary air cylinder air passage and an auxiliary air cylinder seat hole); the gas distribution channel of the whole auxiliary rotor is very long, and the gas distribution channel is long, so that the following problems occur:
1. the air flow needs to pass through a plurality of contact surfaces, and the contact surfaces needing sealing treatment are more, so that the problems of high manufacturing cost and easy sealing leakage are caused.
2. The longer valve event causes the exhaust to be less thorough (i.e., residual exhaust gas is present in the longer valve event passages), thereby affecting the power density and maximum output power of the engine.
3. Because the second air port, the second air passage and the third air port are arranged on the main rotor, the structural strength of the main rotor can be reduced, and in order to ensure the structural strength of the main rotor, thickening treatment (volume increase and weight increase) is required to be carried out on the size of the main rotor, so that special requirements on high performance and light weight under some use scenes (such as a small unmanned platform) cannot be met, and the thickening treatment of the main rotor can also lead to large inertia force, so that the use scenes of the annular series-connection straight cylinder engine are further limited.
Disclosure of Invention
In order to solve the technical problems, the application provides a supercharging air distribution mechanism of an annular series straight cylinder engine and the annular straight cylinder engine, which utilize the rotation of annular series cylinders to enable a first air port and a second air port of a communicated cylinder to alternately align with an air inlet and an air outlet of a central air distribution shaft, realize the multiplexing of an air inlet and an air outlet passage and the automatic air inlet and outlet process of the cylinder, improve the power density and the maximum output power of the engine, and simultaneously have the characteristics of compact structure, and meet the use under the scene of high performance and light weight. Meanwhile, the application utilizes the axial flow characteristic of the inlet and the outlet, integrates the axial flow turbine blade on the central distribution shaft, converts the residual energy of the waste gas and improves the inlet efficiency.
In order to solve the technical problems, the application adopts the following technical scheme:
the supercharging air distribution mechanism of the annular series straight cylinder engine comprises an air inlet shaft with an air inlet air passage, and is characterized in that the air inlet shaft is fixedly connected with a central air distribution shaft in a coaxial mode, the periphery of the central air distribution shaft is sequentially and rotatably connected with a first rotor air distribution shaft used for installing a first rotor and distributing air to the first rotor and a second rotor air distribution shaft used for installing a second rotor and distributing air to the second rotor 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, which faces the connecting flange, is provided with a plurality of air inlets along the radial direction of the cylinder body, each air inlet is communicated with an air inlet channel, the air inlet channel communicated with the air inlet runs through the outer circumferential wall of the cylinder body and forms a first air inlet and a second air inlet on the outer circumferential wall of the cylinder body, the first rotor air distribution shaft is provided with a first air inlet capable of being communicated with the first air inlet and a second rotor air distribution shaft, the second rotor air distribution shaft is provided with a second air inlet capable of being communicated with the second air inlet and used for distributing air to the second rotor and is communicated with the second air outlet channel along the radial direction of the air outlet channel formed on the outer circumferential wall of the cylinder body, and each air outlet channel is communicated with the air outlet channel is formed 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 is provided with a small-diameter section which is mutually matched with 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 one end of the second rotor gas distribution shaft is sleeved on the periphery of the central gas distribution shaft and is positioned 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 tap for distributing air to the first rotor, the second air port is provided with a second air tap for distributing air to the second rotor, and a large-diameter section of the air distributing shaft of the first rotor is provided with a notch for exposing the second air tap.
In some embodiments, the air inlet and the air outlet are respectively arranged at two sides of the cylinder along a direction parallel to the axial direction of the cylinder.
In some embodiments, a third air tap is mounted on the cylinder of the first rotor, and the first air tap and the third air tap are mutually communicated through a pipeline; and a fourth air tap is arranged on the air cylinder of the second rotor, and the second air tap and the fourth air tap are mutually communicated through a pipeline.
In some embodiments, the second rotor distributing shaft is provided with an exhaust channel communicated with the air outlet of the cylinder.
In some embodiments, a rotating shaft is rotatably installed in the middle of the cylinder, one end of the rotating shaft extends out of the air outlet of the cylinder and is provided with turbine blades, and the other end of the rotating shaft extends out of the air inlet of the cylinder and is provided with air compressing blades.
The utility model provides an annular straight cylinder engine which characterized in that includes the multiplexing formula boost valve train of air flue of annular series connection straight cylinder engine.
Compared with the prior art, the application has the following beneficial effects:
in the using process of the supercharging air distribution mechanism, an air inlet shaft is fixedly connected to a shell of an engine, a central air distribution shaft which is fixedly connected with the air inlet shaft is fixedly connected, a first rotor air distribution shaft and a second rotor air distribution shaft are rotationally connected to the periphery of the central air distribution shaft, when the first rotor and the 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 inlet on the first rotor air distribution shaft is alternately aligned with a first air inlet and a first air outlet on the central air distribution shaft, a second air inlet on the second rotor air distribution shaft is alternately aligned with a second air inlet and a second air outlet on the central air distribution shaft, the first air inlet on the first rotor air distribution shaft is communicated with a cylinder of the first rotor through a first air nozzle and a third air nozzle, and the second air inlet on the second rotor air distribution shaft is communicated with a cylinder of the second rotor through a second air nozzle and a fourth air nozzle, and air distribution (air inlet and air outlet) of the cylinder on the first rotor and the second rotor are realized. Compared with the prior art, the application adopts the structural design of the central air distribution shaft and the structural designs of the first rotor air distribution shaft and the second rotor air distribution shaft: on the one hand, the air inlet and the air outlet are respectively formed in two sides of the central air distribution shaft (namely, the air inlet and the air outlet are respectively formed in two ends of the cylinder), the air inlet forms a first air inlet and a second air inlet on the outer circumferential wall of the cylinder through the air inlet channel, and the air outlet forms a first air outlet and a second air outlet on the outer circumferential wall of the cylinder through the air outlet channel, so that only one rotary sealing surface exists between the first rotor air distribution shaft, the second rotor air distribution shaft and the central air distribution shaft, the sealing surface in the air distribution process is reduced, and the sealing performance in the air distribution process is improved. On the other hand, in the use process, the air distribution flow of the air cylinder on the first rotor and the air cylinder on the second rotor is an air inlet shaft, a central air distribution shaft, a first rotor air distribution shaft (a second rotor shaft) and the air cylinder on the first rotor (the air cylinder on the second rotor), so that compared with the prior art, the air distribution flow of the air cylinder on the second rotor can be greatly shortened, the number of sealing surfaces is reduced again, and the sealing performance is improved; meanwhile, the length of an air passage of exhaust is reduced, so that the storage of exhaust gas in the air passage is reduced, and the functional density and the maximum output power of the engine are improved; and because the arrangement of the second air port, the second air passage and the third air port on the main rotor (the first rotor) is reduced, the arrangement of the auxiliary air cylinder air passage on the auxiliary rotor (the second rotor) is reduced, and the strength of the first rotor and the second rotor can be improved, so that the novel air conditioner is convenient to use in a high-performance and light-weight scene. Meanwhile, on the premise of the same mechanical strength, the weight can be reduced, the inertia force is conveniently reduced, and the functional density and the maximum output power of the engine are further improved.
Meanwhile, the application adopts the air passage multiplexing and the coaxial installation of the central air distribution shaft, the first rotor air distribution shaft and the second rotor air distribution shaft, has the characteristics of compact structure, high rotation coaxiality and small eccentric wear, can further improve the performance of the engine, and further satisfies the light structural design so as to satisfy the use under different scenes.
Meanwhile, the air outlet is arranged along the axial direction parallel to the cylinder, the middle part 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 along the axial direction of the cylinder, the turbine blade can be driven to rotate, and 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 application;
FIG. 2 is a schematic diagram of the front view structure of the present application;
FIG. 3 is a schematic cross-sectional view of the structure at A-A in FIG. 2;
FIG. 4 is a schematic structural view of a first rotor valve shaft and a second rotor valve shaft of the present application;
FIG. 5 is a schematic perspective view of a central valve shaft of the present application;
FIG. 6 is a schematic front view of the central valve shaft of the present application;
FIG. 7 is a schematic cross-sectional view of the structure of FIG. 6 at A-A, without the rotating shaft, turbine blades and compressor blades mounted therein;
FIG. 8 is another angular schematic view of the cross-sectional view at A-A of FIG. 6, without the rotating shaft, turbine blades and compressor blades mounted therein;
FIG. 9 is a left side view of the schematic diagram of FIG. 6;
FIG. 10 is a right side view of the schematic of FIG. 6;
FIG. 11 is a schematic diagram of a connection structure of a valve shaft and a central valve shaft;
FIG. 12 is a schematic cross-sectional view of the structure of FIG. 11 at A-A, wherein a rotating shaft is mounted in the middle of the cylinder, and turbine blades and compressor blades are mounted at two ends of the rotating shaft respectively;
the marks in the figure:
1. an air inlet shaft 11 and an air inlet air passage; 2. the central air distribution shaft, 21, the rotating shaft, 22, the turbine blades, 23, the air compressing blades, 24, the connecting flange, 25, the cylinder, 26, the air inlets, 27, the first air inlets, 28, the second air inlets, 29, the first air outlets, 210, the second air outlets, 211, the air outlets, 212 and the air inlet channel; 3. the first rotor air distribution shaft 31, the first air tap 32, the notch 33 and the first air tap; 4. the second rotor air distribution shaft, 41, the second air tap, 42, the exhaust channel, 43 and the second air port; 5. The first rotor, 51, third air cock; 6. a second rotor, 61, a fourth air tap; 7. and (3) a cylinder.
Detailed Description
The present application is further described below in conjunction with embodiments, which are merely some, but not all embodiments of the present application. Based on the embodiments of the present application, other embodiments that may be used by those of ordinary skill in the art without making any inventive effort are within the scope of the present application.
In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present application; 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 explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the mechanical connection may be direct connection or indirect connection through an intermediate medium, or may be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-12, the supercharging air distribution mechanism of the annular series straight cylinder engine comprises an air inlet shaft 1 with an 11 air inlet passage, wherein the air inlet shaft 1 is used for being communicated with an external air source and inputting combustion-supporting gas (such as air) into the air inlet shaft 1, and the air inlet shaft 1 can be fixedly arranged on a shell of the engine so as to fix the air inlet 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 for installing a first rotor 5 and distributing air to the first rotor 5 and a second rotor air distribution shaft 4 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 shape. The formation of the annular structure for the first rotor 5, the second rotor 6 and the cylinder 7 is not an innovation of the present application, and it is understood and appreciated by those skilled in the art that the description thereof will not be repeated here. 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 25, one side of the cylinder 25 facing the connecting flange 24 is provided with a plurality of air inlets 26 along the radial direction of the cylinder 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 25 and form a first air inlet 27 and a second air inlet 28 on the outer circumferential wall of the cylinder 25, that is, the air inlet channels 212 form air inlets on the end wall, close to the connecting flange end, of the cylinder, 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. The first rotor air distribution shaft 3 is provided with a first air port 33 which can be communicated with the first air inlet 27 and is used for distributing air to the first rotor 5 (the air cylinder 7 on the first rotor 5), the second rotor air distribution shaft 4 is provided with a second air port 43 which can be communicated with the second air inlet 28 and is used for distributing air to the second rotor 6 (the air cylinder on the second rotor 6), one side surface of the cylinder 25 far away from the connecting flange 24 is provided with a plurality of air outlets 211 along the radial direction of the cylinder 25, each air outlet 211 is communicated with an air outlet channel, and the air outlet channel communicated with the air outlet runs through the outer circumferential wall of the cylinder and forms a first air outlet 29 and a second air outlet 210 on the outer circumferential wall of the cylinder; the first air port 33 can be in alternate communication with the first air inlet 27 and the first air outlet 29, and the second air port 43 can be in alternate communication with the second air inlet 28 and the second air outlet 210, as the first rotor air distribution shaft 3 and the second rotor air distribution shaft 4 rotate along the central air distribution shaft 2.
In some embodiments, the second rotor air distribution shaft 4 is provided with an air exhaust channel 42 that is mutually communicated with the air outlet 211 of the cylinder 25, and the generated exhaust gas is directly discharged from the air exhaust channel 42 after being discharged from the air outlet 211.
In some embodiments, the second rotor gas distribution shaft 4 is sequentially a large-diameter section, a necking section and a small-diameter section 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 mutually 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 necking section, and the exhaust channel 42 is arranged on the necking section and the small-diameter section, so that the weight is further reduced, and the design of light weight is realized.
Wherein in some embodiments the connecting flange 24 is interconnected with the barrel 25 as a single unit. 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 formed on the solid cylinder.
In some embodiments, the side of the cylinder facing the connecting flange is provided with a hollow section, and the hollow section is convenient to communicate with the air inlet channel 11 of the air inlet shaft 1, so that 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 intake port 26 communicates with one intake passage 212, and one intake passage 212 communicates with both the first intake port 27 and the second intake port 28.
Similarly, in some embodiments, one air outlet 211 communicates with one air outlet channel, one air outlet channel communicates with one first air outlet 29, and one air outlet channel communicates with one second air outlet 210. In some embodiments, one air outlet 211 communicates with one air outlet channel, which communicates with both the first air outlet 29 and the second air outlet 210.
Wherein the air inlet channels 212 and the air outlet channels are arranged on the cylinder 25 independently and alternately at intervals, and at the same time, the first air inlet 27 and the second air inlet 28 and the first air outlet 29 and the second air outlet 210 are arranged alternately at intervals. So that the intake and exhaust processes are alternately implemented.
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 application are not limited, and may be circular, rectangular with rounded corners, waist-shaped, trapezoid, etc.
In some embodiments, the first rotor gas distribution shaft 3 has a small diameter section which is mutually matched with 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 is positioned 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 meanwhile, the relative rotation of the first rotor gas distribution shaft 3 and the second rotor gas distribution shaft cannot be mutually influenced.
In some embodiments, the first air port 33 is provided with a first air nozzle 31 for distributing air to the first rotor 5, the second air port 43 is provided with a second air nozzle 41 for distributing air to the second rotor 6, and a large-diameter section of the first rotor air distribution shaft 3 is provided with a notch 32 for exposing the second air nozzle 61. 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, the third air nozzle 51 is mounted on the 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 pipe; the cylinder 7 of the second rotor 6 is provided with a fourth air tap 61, and the second air tap 41 and the fourth air tap 61 are mutually communicated through a pipe. In the using process, the air distribution flow of the air cylinder on the first rotor and the air cylinder on the second rotor is an air inlet shaft, a central air distribution shaft, a first rotor air distribution shaft (a second rotor shaft) and an air cylinder on the first rotor (an air cylinder on the second rotor), so that compared with the prior art, the air distribution flow of the air cylinder on the second rotor can be greatly shortened, the number of sealing surfaces is reduced again, and the sealing performance is improved; meanwhile, the length of the exhaust gas passage is reduced, so that the storage of the exhaust gas in the gas passage (namely, the length between the cylinder 7 and the first gas port 16 and the length between the cylinder 7 and the second gas port) are reduced, and the functional density and the maximum output power of the engine are improved; and because the arrangement of the second air port, the second air passage and the third air port on the main rotor (the first rotor) is reduced, the arrangement of the auxiliary air cylinder air passage on the auxiliary rotor (the second rotor) is reduced, and the strength of the first rotor and the second rotor can be improved, so that the novel air conditioner is convenient to use in a high-performance and light-weight scene. Meanwhile, on the premise of the same mechanical strength, the weight can be reduced, the inertia force is conveniently reduced, 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 disposed at two 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 an 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 an air inlet 26 of the cylinder 25 and is provided with air compressing blades 23. When the exhaust gas exhausted from the air outlet is exhausted along the axial direction of the cylinder, the turbine blades can be driven to rotate, and the turbine blades drive the rotating shaft to rotate and drive the air pressure blades to rotate, so that the pressure is increased at the air inlet end of the cylinder, and the air distribution efficiency is further improved.
In the use process of the air passage multiplexing type pressurizing air distribution mechanism, an air inlet shaft is fixedly connected to a shell of an engine, a central air distribution shaft which is fixedly connected with the air inlet shaft is fixedly connected, a first rotor air distribution shaft and a second rotor air distribution shaft are rotationally connected to the periphery of the central air distribution shaft, when the first rotor and the 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 inlet on the first rotor air distribution shaft is alternately aligned with a first air inlet and a first air outlet on the central air distribution shaft, a second air inlet on the second rotor air distribution shaft is alternately aligned with a second air inlet and a second air outlet on the central air distribution shaft, the first air inlet on the first rotor air distribution shaft is communicated with a cylinder of the first rotor through a first air nozzle and a third air nozzle, and the second air inlet on the second rotor air distribution shaft is communicated with a cylinder of the second rotor through a second air nozzle and a fourth air nozzle, and air distribution (air inlet and air exhaust) of the cylinder on the first rotor and the second rotor is realized. Compared with the prior art, the application adopts the structural design of the central air distribution shaft and the structural designs of the first rotor air distribution shaft and the second rotor air distribution shaft: on the one hand, the air inlet and the air outlet are respectively formed in two sides of the central air distribution shaft (namely, the air inlet and the air outlet are respectively formed in two ends of the cylinder), the air inlet forms a first air inlet and a second air inlet on the outer circumferential wall of the cylinder through the air inlet channel, and the air outlet forms a first air outlet and a second air outlet on the outer circumferential wall of the cylinder through the air outlet channel, so that only one rotary sealing surface exists between the first rotor air distribution shaft, the second rotor air distribution shaft and the central air distribution shaft, the sealing surface in the air distribution process is reduced, and the sealing performance in the air distribution process is improved. (in the patent application with the publication number of CN112177769A, a rotary sealing surface exists between the air distribution shaft and the rotary air distribution shaft, a rotary sealing surface exists between the rotary air distribution shaft and the main rotor, and a rotary sealing surface exists between the third air port of the main rotor and the air port of the auxiliary rotor), on the other hand, in the use process, the air distribution flow of the air cylinder on the first rotor and the air cylinder on the second rotor is the air inlet shaft-central air distribution shaft-air distribution shaft of the first rotor (second rotor shaft) -air cylinder on the first rotor (air cylinder on the second rotor), so that compared with the prior art, the air distribution process of the air cylinder on the second rotor can be greatly shortened, the number of the sealing surfaces is reduced again, and the sealing performance is improved; meanwhile, the length of an air passage of exhaust is reduced, so that the storage of exhaust gas in the air passage is reduced, and the functional density and the maximum output power of the engine are improved; and because the arrangement of the second air port, the second air passage and the third air port on the main rotor (the first rotor) is reduced, the arrangement of the auxiliary air cylinder air passage on the auxiliary rotor (the second rotor) is reduced, and the strength of the first rotor and the second rotor can be improved, so that the novel air conditioner is convenient to use in a high-performance and light-weight scene. Meanwhile, on the premise of the same mechanical strength, the weight can be reduced, the inertia force is conveniently reduced, and the functional density and the maximum output power of the engine are further improved.
Meanwhile, the application adopts the air passage multiplexing and the coaxial installation of the central air distribution shaft, the first rotor air distribution shaft and the second rotor air distribution shaft, has the characteristics of compact structure, high rotation coaxiality and small eccentric wear, can further improve the performance of the engine, and further satisfies the light structural design so as to satisfy the use under different scenes.

Claims (8)

1. The supercharging air distribution mechanism of the annular series straight cylinder engine comprises an air inlet shaft (1) with an air inlet air passage (11), and is characterized in that the air inlet shaft (1) is fixedly connected with a central air distribution shaft (2) in a coaxial mode, 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), the central air distribution shaft (2) comprises a connecting flange (24) used for being connected with the air inlet shaft (1), one side of the connecting flange (24) is provided with a plurality of air inlets (26) along the radial direction of the cylinder (25), each air inlet (26) is communicated with an air inlet channel (212), an outer circumferential wall of the air inlet channel (212) communicated with the air inlet is penetrated through the first rotor (25) and is provided with an air inlet (27) of the first rotor (27) which is communicated with the first rotor (27), a second air port (43) which can be communicated with a second air inlet (28) and is 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 surface, far away from the connecting flange (24), of the cylinder (25) along the radial direction of the cylinder (25), each air outlet (211) is communicated with an air outlet channel, and the air outlet channels communicated with the air outlets (211) penetrate through the outer circumferential wall of the cylinder (25) and form a first air outlet (29) and a second air outlet (210) on the outer circumferential wall of the cylinder (25); 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 port (33) can be alternately communicated with the first gas inlet (27) and the first gas outlet (29), and the second gas port (43) can be alternately communicated with the second gas inlet (28) and the second gas outlet (210).
2. The supercharging gas distribution mechanism of the annular series straight cylinder engine according to claim 1, wherein the first rotor gas distribution shaft (3) is provided with a small diameter section which is mutually 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. The supercharging air distribution mechanism of the annular series straight cylinder engine according to claim 2, characterized in that a first air nozzle (31) for distributing air to the first rotor (5) is installed on the first air port (33), a second air nozzle (41) for distributing air to the second rotor (6) is installed on the second air port (43), and a notch (32) for exposing the second air nozzle (41) is formed in a large-diameter section of the first rotor air distribution shaft (3).
4. A supercharging air distribution mechanism of an annular series straight cylinder engine according to claim 3, characterized in that a third air tap (51) is arranged on the air cylinder (7) of the first rotor (5), and the first air tap (31) and the third air tap (51) are mutually communicated through a pipe; a fourth air nozzle (61) is arranged on the air cylinder (7) of the second rotor (6), and the second air nozzle (41) and the fourth air nozzle (61) are mutually communicated through a pipeline.
5. Supercharging gas distribution mechanism of an annular tandem straight cylinder engine according to any of claims 1-4, characterized in that the gas inlet (26) and the gas outlet (211) are arranged on both sides of the cylinder (25) in a direction parallel to the axial direction of the cylinder (25), respectively.
6. The supercharging gas distribution mechanism of the annular series straight-cylinder engine according to claim 5, characterized in that the second rotor gas distribution shaft (4) is provided with a gas exhaust channel (42) communicated with the gas outlet (211) of the cylinder body (25).
7. The supercharging air distribution mechanism of the annular series straight cylinder engine according to claim 5, wherein a rotating shaft (21) is rotatably installed in the middle of the cylinder body (25), one end of the rotating shaft (21) extends out of an air outlet of the cylinder body (25) and is provided with turbine blades (22), and the other end of the rotating shaft (21) extends out of an air inlet (26) of the cylinder body (25) and is provided with air compressing blades (23).
8. An annular direct cylinder engine comprising a boost valve train according to any one of claims 1 to 7.
CN202111218642.5A 2021-10-20 2021-10-20 Supercharging air distribution mechanism of annular series straight cylinder engine and annular straight cylinder engine Active CN113898465B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201273225Y (en) * 2008-09-04 2009-07-15 张景申 Improved engine distribution system
DE102014215836A1 (en) * 2013-08-14 2015-02-19 Ford Global Technologies, Llc Internal combustion engine with double-flow radial turbine of an exhaust gas turbocharger and grouped cylinders and method for operating such an internal combustion engine
CN106761383A (en) * 2017-01-09 2017-05-31 西南石油大学 A kind of gas drive is surged the air distributing device of gas screw drilling tool motor assembly
CN109026379A (en) * 2018-08-01 2018-12-18 重庆交通大学 Birotor becomes the steady combustion piston engine of circulation
CN112177769A (en) * 2020-09-29 2021-01-05 中国人民解放军国防科技大学 Rotary air distribution structure of annular series cylinder group

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201273225Y (en) * 2008-09-04 2009-07-15 张景申 Improved engine distribution system
DE102014215836A1 (en) * 2013-08-14 2015-02-19 Ford Global Technologies, Llc Internal combustion engine with double-flow radial turbine of an exhaust gas turbocharger and grouped cylinders and method for operating such an internal combustion engine
CN106761383A (en) * 2017-01-09 2017-05-31 西南石油大学 A kind of gas drive is surged the air distributing device of gas screw drilling tool motor assembly
CN109026379A (en) * 2018-08-01 2018-12-18 重庆交通大学 Birotor becomes the steady combustion piston engine of circulation
CN112177769A (en) * 2020-09-29 2021-01-05 中国人民解放军国防科技大学 Rotary air distribution structure of annular series cylinder group

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