Ventilation system capable of uniformly feeding air into cylinders

By designing a ventilation system that uses standardized components to uniformly intake air in each cylinder, the problem of uneven intake air in the prior art is solved, and the uniform distribution of cylinder intake air and the reliability of the whole machine function is improved.

CN119801770APending Publication Date: 2025-04-11CHINA NORTH ENGINE RES INST
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Patent Information

Application Number
CN202411710164.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-04-11

AI Technical Summary

Technical Problem

Due to the limitations of the processing technology and the complexity of the overall structure of the existing engine air intake system, the intake of each cylinder is uneven, and the air intake difference causes the reliability of the entire machine to decrease.

Method used

A ventilation system that uniformly intakes of each cylinder is designed, and standardized components are adopted, including a diversion box, intake pipe, body, cylinder head, exhaust pipe, No. 1 supercharger, cooling box, electric supercharger and intermediate air pipe. Through the synergy of these components, uniform distribution of cylinder intake is achieved.

Benefits of technology

The uniformity and accuracy of cylinder intake are achieved, the reliability and accuracy of the whole machine function is improved, and economic costs and test operation time costs are reduced.

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Abstract

The invention provides a ventilation system capable of uniformizing air intake of each cylinder, which comprises a shunting box connected with each cylinder cover on a machine body through an air inlet pipe. Each cylinder cover is connected with the first supercharger through an exhaust pipe; the first supercharger is connected with the cooling box, and the cooling box is connected with the flow dividing box through the electric supercharger and the middle air pipe. The whole air inlet system adopts parts which can be designed in a standardized mode, installation can be carried out according to design expectation during installation, non-standard installation caused by assembly difference due to the fact that the matching effect is limited is avoided, meanwhile, air can be evenly fed into the two columns of air cylinders on the two sides in the air inlet process, the air inlet accuracy of the air cylinders is improved, and the service life of the air cylinders is prolonged. The expected function can be realized more accurately, and the reduction of the reliability in the function realization process of the whole machine caused by air inlet difference is avoided; the system is convenient to install and high in uniformity, the overall standardization degree and the reliability and accuracy of function implementation are improved, and the economic cost and the time cost of operation in the test are reduced.
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Description

Technical Field

[0001] The invention belongs to the technical field of engines, and in particular relates to a ventilation system for uniformly inletting air into each cylinder. Background Art

[0002] Taking the V-type engine as an example, the newly emerging gas fuel engine layout is to design an intake manifold and manifold that adapts to the overall structure after the two rows of cylinders and other components on both sides of the engine are fully arranged, and the airflow is divided into two rows. However, due to limited processing technology and complex overall structure, the connection of various parts of the intake system is often difficult to be as tight and smooth as designed. At this time, the bolts, hose seals and other measures adopted have completed the function to a certain extent, but in the context of using a supercharger, the intake pipe is full of high-density and high-speed fresh air, and the small differences on the intake manifold will be magnified, resulting in uneven intake of the two rows of cylinders on both sides, with more intake on one side and less intake on the other side. The engine functions as a whole machine, and the effect of its final function is determined by the cylinder with the worst performance. This leads to a large difference between the function of the whole machine and the expected design, thereby reducing the overall reliability. Therefore, it is hoped that a standardized design approach can be adopted, and the entire intake system can use components that can be standardized in design. During installation, it can be installed according to the design expectations to avoid assembly differences caused by limited matching effects and thus non-standard installation, thereby reducing reliability; at the same time, the two rows of cylinders on both sides can be evenly inhaled during the intake process, so that the accuracy of cylinder intake can be improved, and the expected functions can be achieved more accurately, avoiding the reduction in reliability during the realization of the whole machine function caused by intake differences. This system is easy to install and has strong uniformity, which improves the overall standardization and reliability and accuracy of function realization, and reduces economic costs and time costs of operation during the test. Summary of the invention

[0003] In view of this, the present invention aims to propose a ventilation system for uniform air intake in each cylinder, so as to solve the problem of uneven air intake of the whole machine caused by non-standard assembly and thus reduce the overall reliability, so as to improve the uniformity and accuracy of cylinder air intake and realize the expected functions during design more accurately.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A ventilation system for uniform air intake in each cylinder comprises a diverter box, an intake pipe, a machine body, a cylinder head, an exhaust pipe, a No. 1 supercharger, a cooling box, an electric supercharger and an intermediate air pipe; the diverter box is connected to each cylinder head on the machine body through the intake pipe; each cylinder head is connected to the No. 1 supercharger through the exhaust pipe; the No. 1 supercharger is connected to the cooling box, and the cooling box is connected to the diverter box through the electric supercharger and the intermediate air pipe.

[0006] Furthermore, the engine body is a supporting part of the engine; and the cylinder head is a ventilation component of the engine.

[0007] Furthermore, the diverter box is a hollow box body, which is symmetrical with the diverter box symmetry plane, and the diverter box symmetry plane coincides with the body symmetry plane; the diverter box as a whole is composed of two parts, including a diverter area and a rectifying area.

[0008] Furthermore, a plurality of air inlet holes are evenly and symmetrically opened on the side surfaces of both sides of the diverter area relative to the symmetric plane of the diverter box; the diverter box is installed on the engine body, and the plurality of air inlet holes correspond to the cylinder head one by one.

[0009] Furthermore, the rectifying area is located below the diverting area, the upper top surface of the cavity of the rectifying area is larger than the lower bottom surface of the cavity of the diverting area, and a middle air hole is arranged on the front side surface.

[0010] Furthermore, the intake pipe is a hollow pipe, and one side of a plurality of identical intake pipes is connected to a plurality of intake holes on the diverter box, and the other side is connected to a plurality of cylinder heads.

[0011] Furthermore, the cooling box is a hollow box body, with a thermal boost connection hole provided on one side and an electric boost connection hole provided on the other side; the cooling box is installed above the diversion box.

[0012] Furthermore, the No. 1 supercharger is connected to the thermal supercharging connection hole of the cooling box through the compressor hole, and is used to convert the kinetic energy and thermal energy in the exhaust gas into the kinetic energy of the fresh intake air.

[0013] Furthermore, the exhaust pipe is a hollow pipe; one side of the exhaust pipe is connected to a plurality of cylinder heads, and the other side is connected to a turbine hole of a No. 1 supercharger.

[0014] Furthermore, the electric supercharger is connected to the electric supercharger connection hole of the cooling box through the air collecting hole; it is used to convert electrical energy into kinetic energy of fresh air; the intermediate air pipe is a hollow pipe, one side of which is connected to the supercharger hole of the electric supercharger, and the other side is connected to the intermediate air hole of the diverter box.

[0015] Compared with the prior art, the ventilation system for uniform air intake in each cylinder described in the present invention has the following advantages:

[0016] (1) The ventilation system of the present invention, which has uniform air intake in each cylinder, uses components that can be designed in a standardized manner. During installation, the components can be installed according to the design expectations, thereby avoiding assembly differences caused by limited matching effects and thus causing non-standard installations, thereby reducing reliability and improving the overall standardization level and the reliability and accuracy of function realization.

[0017] (2) The present invention provides a ventilation system for uniform air intake in each cylinder, which can make the two rows of cylinders on both sides intake air evenly during the intake process, improve the accuracy of cylinder intake, achieve the expected function more accurately, and avoid the decrease in reliability of the whole machine function realization process caused by intake differences. It has the characteristics of easy installation and strong uniformity, and improves the overall reliability of the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is an overall front right view of a ventilation system for uniform air intake in each cylinder according to the present invention;

[0020] Figure 2 This is an overall front left view of a ventilation system for uniform air intake in each cylinder according to the present invention;

[0021] Figure 3 It is a schematic diagram of the body of a ventilation system for uniform air intake in each cylinder according to the present invention;

[0022] Figure 4 A schematic diagram of a cylinder head of a ventilation system for uniform air intake in each cylinder according to the present invention;

[0023] Figure 5 A schematic diagram of an exhaust pipe of a ventilation system for uniform air intake in each cylinder according to the present invention;

[0024] Figure 6 A schematic diagram of a first supercharger of a ventilation system for uniform air intake in each cylinder according to the present invention;

[0025] Figure 7 It is an overall schematic diagram of a cooling box of a ventilation system for uniform air intake in each cylinder according to the present invention;

[0026] Figure 8 It is an overall transverse cross-sectional view of a cooling box of a ventilation system for uniform air intake in each cylinder according to the present invention;

[0027] Fig. 9 A schematic diagram of an electric supercharger of a ventilation system for uniform air intake in each cylinder according to the present invention;

[0028] Fig.10 It is an overall schematic diagram of a manifold box of a ventilation system for uniform air intake in each cylinder according to the present invention;

[0029] Fig.11 A cross-sectional view of a manifold box of a ventilation system for uniform air intake in each cylinder according to the present invention, with the symmetric plane of the manifold box as the cross-section;

[0030] Fig.12 A schematic diagram of an intermediate air pipe of a ventilation system for uniform air intake in each cylinder according to the present invention;

[0031] Fig.13 A longitudinal cross-sectional view of an intermediate air pipe of a ventilation system for uniform air intake in each cylinder according to the present invention;

[0032] Fig.14 A longitudinal cross-sectional view of a manifold box of a ventilation system for uniform air intake in each cylinder according to the present invention;

[0033] Fig.15 A schematic diagram of an intake pipe of a ventilation system for uniform air intake in each cylinder according to the present invention;

[0034] Fig.16 A longitudinal cross-sectional view of an intake pipe of a ventilation system for uniform air intake in each cylinder according to the present invention;

[0035] Fig.17 It is a cross-sectional view of the whole machine at the connection between the No. 1 supercharger and the cooling box of the ventilation system for uniform air intake in each cylinder according to the present invention;

[0036] Fig.18 A cross-sectional view of the connection between a cooling box and an electric supercharger of a ventilation system for uniform air intake in each cylinder according to the present invention;

[0037] Fig.19 The present invention is a cross-sectional view of a ventilation system for uniform air intake in each cylinder along the longitudinal direction of a certain intake pipe.

[0038] Description of reference numerals:

[0039] 1. Diverter box; 11. Symmetrical surface of diverter box; 12. Diverter area; 13. Rectification area; 121. Inlet hole; 122. Lower bottom surface of the diverter area cavity; 131. Upper top surface of the rectification area cavity; 132. Middle air hole; 2. Inlet pipe; 3. Engine body; 31. Symmetrical surface of the engine body; 4. Cylinder head; 5. Exhaust pipe; 6. No. 1 supercharger; 61. Compressor hole; 62. Turbine hole; 7. Cooling box; 71. Thermal boost connection hole; 72. Electric boost connection hole; 8. Electric supercharger; 81. Air collecting hole; 82. Boost hole; 9. Middle air pipe. DETAILED DESCRIPTION

[0040] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0043] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0044] like Figure 1 and Figure 2 As shown, a ventilation system for uniform air intake in each cylinder includes a diverter box 1, which is connected to each cylinder head 4 on a body 3 through an intake pipe 2; each cylinder head 4 is connected to a No. 1 supercharger 6 through an exhaust pipe 5; the No. 1 supercharger 6 is connected to a cooling box 7, and the cooling box 7 is connected to a diverter box 11 through an electric supercharger 8 and an intermediate air pipe 9.

[0045] like Figure 3 As shown, the engine body 3 is the supporting part of the engine, including the cylinder, piston, etc., which is briefly expressed here; this article takes the engine body 3 of the V-type engine as an example, which is bilaterally symmetrical about the symmetry plane of the engine body 3; Figure 4 As shown, the cylinder head 4 is one of the ventilation components of the engine, including the intake valve, exhaust valve and other structures, which are briefly expressed here. A plurality of cylinder heads 4 are evenly and symmetrically mounted on the engine body 3 relative to the symmetry plane of the engine body 3; after the engine body 3 and the cylinder head 4 are connected in this example, the engine has the function of burning fuel to do work: the cylinder head 4 is connected to the engine's intake and exhaust pipes 5 to achieve ventilation, and the fuel is burned in the cylinders in the engine body 3 to obtain power.

[0046] like Figure 5 As shown, the exhaust pipe 5 is a hollow pipe having a unique shape adapted to the overall layout, which is briefly expressed here; one side of the exhaust pipe 5 is connected to a plurality of cylinder heads 4, and the other side is connected to the turbocharger turbine hole 62; after the engine burns fuel to do work, a large amount of high-temperature and high-speed exhaust gas is generated, and the exhaust gas is guided to the first turbocharger 6 through the exhaust pipe 5; as shown in FIG. Figure 6 As shown, the No. 1 supercharger 6 is a product that converts the kinetic energy and thermal energy in the exhaust gas into the kinetic energy of the introduced fresh air, which is simplified in this article; the No. 1 supercharger 6 is connected to the thermal boost connection hole 71 of the cooling box 7 through the compressor hole 61.

[0047] like Figure 7 and Figure 8 As shown, the cooling box 7 is a hollow box, with a thermal boost connection hole 71 on one side and an electric boost connection hole 72 on the other side; the cooling box 7 is installed above the diverter box 1; the fresh air is cooled and its density increases after entering the cooling box 7 from the No. 1 supercharger 6. Fig. 9 As shown, the electric supercharger 8 is a product that converts electrical energy into kinetic energy of fresh air, which is briefly expressed here; the electric supercharger 8 is connected to the electric supercharger connection hole 72 of the cooling box 7 through the air collecting hole 81; the fresh air enters the electric supercharger 8 from the cooling box 7 and is accelerated again; since the electric supercharger 8 uses electrical energy, it is flexible to operate. In the actual layout, the electric supercharger 8 and the No. 1 supercharger 6 can be swapped according to the use environment and purpose, that is, one layout is that the fresh air first enters the No. 1 supercharger 6 connected to the exhaust pipe 5, and then enters the cooling box 7 and the electric supercharger 8, and then the electric supercharger 8 is connected to the intermediate air pipe 9 and the diverter box 1; the other is that the fresh air first enters the electric supercharger 8, and then enters the cooling box 7 and the No. 1 supercharger 6 connected to the exhaust pipe 5, and then the No. 1 supercharger 6 is connected to the intermediate air pipe 9 and the diverter box 1.

[0048] Taking the V-type engine as an example, the newly emerging gas fuel engine layout is to design an intake manifold and manifold that adapts to the overall structure after the two rows of cylinders and other components on both sides of the engine are fully arranged, and the airflow is divided into two rows. However, due to limited processing technology and complex overall structure, the connection of various parts of the intake system is often difficult to be as tight and smooth as designed. At this time, the bolts, hose seals and other measures adopted have completed the function to a certain extent. However, in the context of using a supercharger, the intake pipe 2 is filled with high-density and high-speed fresh air, and the small differences on the intake manifold will be magnified, resulting in uneven intake of the two rows of cylinders on both sides, with more intake on one side and less intake on the other side. The engine functions as a whole machine, and the effect of its final function is determined by the cylinder with the worst performance. This leads to a large difference between the function of the whole machine and the expected design, thereby reducing the overall reliability.

[0049] like Fig.10 and Fig.11 As shown, the diverter box 1 is a hollow box body, which is symmetrical with the symmetric plane of the diverter box 1, and the symmetric plane of the diverter box 1 coincides with the symmetric plane of the machine body 3 and is installed on the machine body 3. The diverter box 1 as a whole is composed of two parts, including a diverter area 12 and a rectifying area 13; a middle air hole 132 is provided on the front side of the rectifying area 13;

[0050] like Fig.12 and Fig.13 As shown, the intermediate air pipe 9 is a hollow pipe, one side of which is connected to the supercharging hole 82 of the electric supercharger 8, and the other side is connected to the intermediate air hole 132 of the diverter box 1; the high-speed and high-density airflow is emitted from the electric supercharger 8 and enters the rectification area 13 through the intermediate air pipe 9 and the intermediate air hole 132. In the rectification area 13, the high-speed and high-density airflow is further pressurized by the wall, and the density is increased. Fig.14 As shown, the diverter area 12 is located above the rectifying area 13, and the upper top surface of the cavity of the rectifying area 13 is larger than the lower bottom surface of the cavity of the diverter area 12. The fresh air with further increased density is pressed into the diverter area 12, and the air is coordinated and distributed at the interface between the diverter area 12 and the rectifying area 13, so that the fresh air is evenly distributed in the diverter area 12. N air intake holes 121 are symmetrically and evenly opened on the side surfaces of both sides of the diverter area 12 relative to the symmetrical plane of the diverter box 1. When the diverter box 1 is installed on the body 3, a plurality of air intake holes 121 are directly opposite to a plurality of cylinder heads 4, corresponding one to one. Fig.15 and Fig.16 As shown, the intake pipe 2 is a hollow pipe, and one side of N identical intake pipes 2 is connected to a plurality of intake holes 121 on the diverter box 1, and the other side is connected to a plurality of cylinder heads 4, thereby, the fresh air evenly distributed in the diverter area 12 is evenly distributed to the cylinders on both sides through the intake pipe 2.

[0051] The installation method and function realization process of a ventilation system for uniform air intake in each cylinder of the present invention are as follows:

[0052] First, the engine body 3 as the supporting part of the engine is manufactured. The engine body 3 includes a cylinder, a piston, etc. Here, the engine body 3 of a V-type engine is used as an example for brief expression;

[0053] A plurality of cylinder heads 4 are evenly and symmetrically mounted on the engine body 3 relative to the symmetric plane of the engine body 3. The cylinder head 4 is one of the ventilation components of the engine, including structures such as an intake valve and an exhaust valve, which are briefly expressed here;

[0054] The manifold box 1 is installed on the body 3 with the symmetric plane of the manifold box 1 overlapping the symmetric plane of the body 3, and at this time, the plurality of air inlet holes 121 are directly opposite to the plurality of cylinder heads 4, and then one side of a plurality of identical air inlet pipes 2 is connected to the plurality of air inlet holes 121 on the manifold box 1, and the other side is connected to the plurality of cylinder heads 4;

[0055] The exhaust pipe 5 has a unique shape that adapts to the overall layout, which is briefly expressed here. One side of the exhaust pipe 5 is connected to the N cylinder heads 4, and the other side is connected to the supercharger turbine hole 62. The first supercharger is connected to the thermal supercharging connection hole 71 of the cooling box 7 through the compressor hole 61. The cooling box 7 is installed above the diverter box 1, and the electric supercharger 8 is connected to the electric supercharging connection hole 72 of the cooling box 7 through the air collecting hole 81.

[0056] Finally, the middle air pipe 9 is a hollow pipe, one side of which is connected to the boost hole 82 of the electric supercharger 8, and the other side is connected to the middle air hole 132 of the diverter box 1, thus completing the installation of the ventilation system for uniform air intake in each cylinder.

[0057] The engine body 3 is the supporting part of the engine, including cylinders, pistons, etc. This article takes the engine body 3 of a V-type engine as an example; the cylinder head 4 is one of the ventilation components of the engine, including structures such as intake valves and exhaust valves. After the engine body 3 is connected to the cylinder head 4 in this example, the engine has the function of burning fuel to do work: the cylinder head 4 is connected to the engine's intake and exhaust pipes 5 to achieve ventilation, and the fuel is burned in the cylinders in the engine body 3 to obtain power. After the engine burns fuel to do work, a large amount of high-temperature and high-speed exhaust gas will be formed, and these exhaust gases will be guided to the No. 1 supercharger 6 through the exhaust pipe 5. The No. 1 supercharger 6 can convert the kinetic energy and heat energy in the exhaust gas into the kinetic energy of the introduced fresh air.

[0058] Since the electric supercharger 8 uses electric energy, it is flexible to operate. In the actual layout, the electric supercharger 8 and the No. 1 supercharger 6 can be swapped according to the use environment and purpose. In one layout, fresh air first enters the supercharger connected to the exhaust pipe 5, and then enters the cooling box 7 and the electric supercharger 8, and then the electric supercharger 8 is connected to the intermediate air pipe 9 and the diverter box 1; the other is that fresh air first enters the electric supercharger 8, and then enters the cooling box 7 and the No. 1 supercharger 6 connected to the exhaust pipe 5, and then the No. 1 supercharger 6 is connected to the intermediate air pipe 9 and the diverter box 1. This article takes the first layout as an example. Fig.17 As shown, fresh air is cooled and its density increases after entering the cooling box 7 from the supercharger. The electric supercharger 8 is a product that converts electrical energy into kinetic energy of air, which is briefly expressed here. Fig.18 As shown, the cooled air enters the electric supercharger 8 from the cooling box 7 and is accelerated again. Emitted from the electric supercharger 8, the high-speed and high-density airflow passes through the intermediate air pipe 9 and the intermediate air hole 132 and enters the rectifying area 13 of the diverter box 1. In the rectifying area 13, the high-speed and high-density airflow is further pressurized by the wall surface, and the density is increased. Fig.19As shown, the diversion area 12 is located above the rectification area 13, and the upper top surface of the cavity of the rectification area 13 is larger than the lower bottom surface of the cavity of the diversion area 12. The fresh air with further increased density is pressed into the diversion area 12, and the air is coordinated and distributed at the interface between the diversion area 12 and the rectification area 13, so that the fresh air is evenly distributed in the diversion area 12. N air intake holes 121 are evenly opened on the side surfaces of the diversion area 12 relative to the symmetric surface of the diversion box 1. When the diversion box 1 is installed on the body 3, the N air intake holes 121 face the N cylinder heads 4. The intake pipe 2 is a hollow pipeline, and one side of the N identical intake pipes 2 is connected to the N air intake holes 121 on the diversion box 1, and the other side is connected to the N cylinder heads 4. Therefore, the fresh air evenly distributed in the diversion area 12 is evenly distributed to the cylinders on both sides through the intake pipe 2. The description of the function realization process of the ventilation system for uniform air intake in each cylinder is completed.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A ventilation system for uniform air intake in each cylinder, characterized in that: The invention comprises a flow distribution box (1), an air intake pipe (2), a machine body (3), a cylinder head (4), an exhaust pipe (5), a first supercharger (6), a cooling box (7), an electric supercharger (8) and an intermediate air pipe (9); the flow distribution box (1) is connected to each cylinder head (4) on the machine body (3) through the air intake pipe (2); each cylinder head (4) is connected to the first supercharger (6) through the exhaust pipe (5); the first supercharger (6) is connected to the cooling box (7), and the cooling box (7) is connected to the flow distribution box (1) through the electric supercharger (8) and the intermediate air pipe (9).

2. A ventilation system for uniform air intake in each cylinder according to claim 1, characterized in that: The engine body (3) is the supporting part of the engine; the cylinder head (4) is the ventilation component of the engine.

3. A ventilation system for uniform air intake in each cylinder according to claim 1, characterized in that: The diverter box (1) is a hollow box body, and is symmetrical with respect to a symmetric plane of the diverter box (1), and the symmetric plane of the diverter box (1) coincides with a symmetric plane of the machine body (3); The flow dividing box (1) as a whole is composed of two parts, including a flow dividing area (12) and a flow rectifying area (13).

4. A ventilation system for uniform air intake in each cylinder according to claim 3, characterized in that: A plurality of air inlet holes (121) are evenly and symmetrically formed on the side surfaces of both sides of the diversion area (12) relative to the symmetric plane of the diversion box (1); the diversion box (1) is mounted on the engine body (3), and the plurality of air inlet holes (121) correspond one-to-one to the cylinder head (4).

5. The ventilation system for uniform air intake in each cylinder according to claim 3, characterized in that: The rectifying area (13) is located below the diverting area (12), the upper top surface of the cavity of the rectifying area (13) is larger than the lower bottom surface of the cavity of the diverting area (12), and a middle air hole (132) is provided on the front side surface.

6. A ventilation system for uniform air intake in each cylinder according to claim 1, characterized in that: The air intake pipe (2) is a hollow pipeline; one side of a plurality of identical air intake pipes (2) is connected to a plurality of air intake holes (121) on the manifold box (1), and the other side is connected to a plurality of cylinder heads (4).

7. The ventilation system for uniform air intake in each cylinder according to claim 1, characterized in that: The cooling box (7) is a hollow box body, one side of which is provided with a thermal boost connection hole (71), and the other side of which is provided with an electrical boost connection hole (72); the cooling box (7) is installed above the diverter box (1).

8. The ventilation system for uniform air intake in each cylinder according to claim 1, characterized in that: The first supercharger is connected to the heat supercharging connection hole (71) of the cooling box (7) through the compressor hole (61); and is used to convert the kinetic energy and thermal energy in the exhaust gas into the kinetic energy of the fresh intake air.

9. The ventilation system for uniform air intake in each cylinder according to claim 1, characterized in that: The exhaust pipe (5) is a hollow pipe; one side of the exhaust pipe (5) is connected to a plurality of cylinder heads (4), and the other side is connected to a turbine hole (62) of a No. 1 supercharger.

10. The ventilation system for uniform air intake in each cylinder according to claim 1, characterized in that: The electric supercharger (8) is connected to the electric supercharger connection hole (72) of the cooling box (7) through the air collecting hole (81); it is used to convert electrical energy into kinetic energy of fresh air; the intermediate air pipe (9) is a hollow pipe, one side of which is connected to the supercharger hole (82) of the electric supercharger (8), and the other side is connected to the intermediate air hole (132) of the diverter box (1).