Supercharging device for air inlet pipeline

Abstract

The supercharging device comprises a shell arranged on the gas inlet pipeline, a gas gathering channel and a separation channel are sequentially arranged in the shell in the gas flowing direction, and a gas gathering assembly is arranged in the gas gathering channel; the gas gathering assembly forms a first vortex structure in the gas gathering channel and is used for accelerating the flow speed of gas flowing through the gas gathering channel to form first rotational flow gas, and a separation assembly is arranged in the separation channel. The separation assembly forms a second vortex structure in the separation channel and is used for accelerating the flow speed of the first rotational flow gas flowing through the separation channel to form second rotational flow gas; according to the supercharging device for the air inlet pipeline, the technical effects that the air inlet amount of an engine is increased under the condition that parameters of the engine are not changed, an efficient air inlet system is designed in a limited space, and the combustion efficiency of the engine is improved under the conditions that a large amount of cost is not increased and the structure of the engine is not changed are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of engines, and in particular to a supercharging device for an air intake pipeline. Background Art

[0002] An internal combustion engine is a power device that converts thermal energy into mechanical energy. Its working principle is to generate high-temperature and high-pressure gas by burning fuel (such as gasoline, diesel, etc.). These gases push the piston to move, thereby converting into mechanical energy. The performance and economy of an internal combustion engine are affected by the intake system. The task of the intake system is to effectively introduce air into the engine and provide sufficient oxygen for the combustion of fuel. The engine intake system is an important channel connecting the engine with the outside atmosphere. Its design directly affects the engine's charging efficiency, combustion efficiency and power performance. Therefore, the design of the intake system needs to consider factors such as the flow state of the airflow, intake resistance, and intake noise.

[0003] Existing internal combustion engine intake systems usually use superchargers to increase the intake volume. Superchargers increase the intake pressure by compressing the air entering the engine cylinder, thereby increasing the engine's output power and torque. This technology has been widely used in various types of engines, including automobile engines, aircraft engines, etc. However, there are some problems with traditional supercharging technology. First, adding a supercharger will significantly increase the cost of the engine. At the same time, the supercharger itself is a complex mechanical device with high manufacturing and maintenance costs. In addition, the introduction of the supercharger requires the engine to be redesigned and arranged, which takes up more space, which is an important problem for engines with limited space; secondly, traditional supercharging technology may cause the engine to work unsteadily. The supercharger will cause airflow fluctuations when working, which may cause the engine to run unsteadily and generate noise and vibration; finally, while improving the economy of the engine, traditional supercharging technology may also bring some negative effects, such as increased emissions.

[0004] Therefore, how to improve the economy of the engine without increasing the engine cost and space layout is an urgent problem to be solved in the current field of internal combustion engine technology. Summary of the invention

[0005] In view of this, the present invention provides a boosting device for an intake pipe, which solves the technical problems of increasing the intake volume of the engine without changing the engine parameters, designing an efficient intake system in a limited space, and improving the combustion efficiency of the engine without increasing a lot of costs and changing the engine structure.

[0006] The present invention provides a boosting device for an air intake pipeline, comprising a shell arranged on the air intake pipeline, wherein a gas gathering channel and a separation channel are sequentially arranged in the shell along the gas flow direction, a gas gathering component is arranged in the gas gathering channel, the gas gathering component forms a first vortex structure in the gas gathering channel and is used to accelerate the gas flow rate flowing through the gas gathering channel to form a first swirl gas, and a separation component is arranged in the separation channel, the separation component forms a second vortex structure in the separation channel and is used to accelerate the first swirl gas flow rate flowing through the separation channel to form a second swirl gas.

[0007] Furthermore, the gas gathering assembly includes a first mounting ring and a plurality of gas gathering blades evenly distributed along the circumferential direction on the inner side of the first mounting ring, the gas gathering blades are in a vortex structure and include a gas gathering blade mounting portion for connecting to the first mounting ring and a gas gathering blade guide portion for guiding the gas, and the plurality of gas gathering blade guide portions are spirally arranged on the first mounting ring along the same clockwise direction or counterclockwise direction to form a first vortex structure.

[0008] Furthermore, the air gathering blade guide portion is formed by the air gathering blade mounting portion extending toward the axial direction of the first mounting ring and bending toward the air intake direction, and the front end of the air gathering blade guide portion in the gas flow direction exceeds the upper end of the first mounting ring.

[0009] Furthermore, the free ends of the plurality of gas collecting blade guide portions are arranged to overlap with each other in the gas flow direction.

[0010] Furthermore, the separation assembly includes a second mounting ring and a plurality of separation blades evenly distributed circumferentially on the inner side of the second mounting ring, the separation blades are in a vortex structure and include a separation blade mounting portion for connecting to the second mounting ring and a separation blade guide portion for guiding the first vortex gas, and the plurality of separation blade guide portions are spirally arranged on the second mounting ring in the same clockwise direction or counterclockwise direction to form a second vortex structure.

[0011] Furthermore, the separation blade guide portion is formed by the separation blade mounting portion extending toward the axial direction of the second mounting ring and bending in the air intake direction, and the front end of the separation blade guide portion in the gas flow direction does not exceed the upper end of the second mounting ring.

[0012] Furthermore, a cross-sectional area of ​​the air intake pipe located at the second vortex structure is smaller than a cross-sectional area of ​​the air intake pipe located at the first vortex structure.

[0013] Furthermore, a plurality of separation slits are provided on the separation blade guide portion, and the separation slits are used to reduce the cross-sectional area of ​​the intake pipe at the second vortex structure and accelerate the flow rate of the first vortex gas flowing therethrough to form the second vortex gas.

[0014] Furthermore, the shell is a cylindrical structure and is provided with connection parts connected to the air intake pipe at both ends in the gas flow direction.

[0015] Furthermore, a step portion for axially limiting the gas gathering assembly is provided in the connecting portion located at the front end of the shell in the air intake direction, and a limiting member is provided on the end face of the connecting portion located at the rear end of the shell, and the limiting member is used to cooperate with the step portion to fix the gas gathering assembly and the separation assembly in the shell.

[0016] The present invention has the following beneficial effects:

[0017] 1. Optimizing space utilization: The present invention adds a simple mechanical structure between the engine throttle and the air filter, which does not require changing engine parameters and does not cause additional pressure on the vehicle body space, thus facilitating reasonable utilization of space.

[0018] 2. Reduce costs: Compared with adding a supercharger, the supercharging device of the present invention does not require a large amount of cost investment, which not only avoids the high manufacturing cost caused by increasing the flow pipe diameter, but also avoids the high equipment procurement and maintenance costs caused by adding a supercharger.

[0019] 3. Improve combustion efficiency: The present invention accelerates the flow rate of air in the intake system to achieve a certain supercharging effect, thereby improving the combustion efficiency of the engine and thus improving the thermal efficiency of the engine. This is of great significance for improving the overall performance and fuel economy of the engine.

[0020] 4. Strong adaptability: The present invention is applicable to various types of engines, whether they are high-horsepower or low-horsepower engines, high-power or low-power engines, and can improve their air intake and combustion efficiency through this method, and has strong adaptability.

[0021] 5. Maintaining the stability of the engine structure: The present invention will not change the structure of the engine, will not have a negative impact on the stability and reliability of the engine, and is conducive to maintaining the normal operation of the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0023] Figure 1 It is a schematic structural diagram of a supercharging device for an air intake pipeline in the present invention;

[0024] Figure 2 It is a structural explosion diagram of the supercharging device in the present invention;

[0025] Figure 3 It is a structural front view of the supercharging device in the present invention;

[0026] Figure 4 for Figure 3 AA section view;

[0027] Figure 5 A top view of the gas gathering assembly of the present invention;

[0028] Figure 6 A top view of a separation component in the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the gas gathering blade in the present invention;

[0030] Figure 8 It is a structural schematic diagram of the separation blade in the present invention;

[0031] The figures are marked as follows: 1-air filter; 2-throttle valve; 3-intake pipe; 4-boosting device; 5-first mounting ring; 6-air gathering blade; 7-second mounting ring; 8-separation blade; 9-housing; 601-air gathering blade mounting portion; 602-air gathering blade guide portion; 801-separation blade mounting portion; 802-separation blade guide portion; 803-separation slit. DETAILED DESCRIPTION

[0032] As shown in the figure, a supercharging device for an air intake pipeline provided by the present invention comprises a shell 9 arranged on the air intake pipeline, wherein a gas gathering channel and a separation channel are sequentially arranged in the shell 9 along the gas flow direction, a gas gathering component is arranged in the gas gathering channel, the gas gathering component forms a first vortex structure in the gas gathering channel and is used to accelerate the gas flow rate flowing through the gas gathering channel to form a first swirl gas, and a separation component is arranged in the separation channel, the separation component forms a second vortex structure in the separation channel and is used to accelerate the first swirl gas flow rate flowing through the separation channel to form a second swirl gas; wherein the supercharging device is arranged in the air intake pipeline between the engine throttle 2 and the air filter 1, and a gas gathering channel and a separation channel are sequentially arranged along the gas flow direction, and the gas gathering component for forming the first vortex structure is arranged in the gas gathering channel to be able to accelerate the gas flowing through the gas gathering channel The gas flow rate is accelerated to form a first swirl gas, and then a negative pressure is formed at the intake end of the supercharging device to allow more gas to enter the device; and in order to ensure the pressure balance in the supercharging device and avoid gas retention problems, a separation component is provided in the separation channel, and the separation component forms a second vortex structure in the separation channel and further accelerates the flow rate of the first swirl gas flowing through the separation channel to form a second swirl gas, and then the second swirl gas flows out from the outlet end of the supercharging device and enters the throttle; in the whole process, by accelerating the flow rate of air in the intake system, a certain supercharging effect is achieved, the combustion efficiency of the engine is improved, and then the thermal efficiency of the engine is improved; and adding the supercharging device to the intake pipe does not require a large amount of cost investment, which not only avoids the high manufacturing cost caused by increasing the flow pipe diameter, but also avoids the high equipment procurement and maintenance costs caused by adding a supercharger.

[0033] In this embodiment, the gas gathering component includes a first mounting ring 5 and a plurality of gas gathering blades 6 uniformly distributed along the circumferential direction on the inner side of the first mounting ring 5, the gas gathering blades 6 are in a vortex structure and include a gas gathering blade mounting portion 601 for connecting to the first mounting ring 5 and a gas gathering blade guide portion 602 for guiding the gas, and the plurality of gas gathering blade guide portions 602 are spirally arranged on the first mounting ring 5 in the same clockwise direction or counterclockwise direction to form a first vortex structure; Figure 5 As shown, the gas gathering component is made by sheet metal stamping and consists of a first mounting ring 5 and a plurality of gas gathering blades 6 circumferentially evenly distributed on the inner side of the first mounting ring 5, wherein the gas gathering blades 6 are in a vortex structure and include a gas gathering blade mounting portion 601 for connecting to the first mounting ring 5 and a gas gathering blade guide portion 602 for guiding the gas; by setting the gas gathering blades 6 as a vortex structure and arranging them in a spiral manner, the airflow flowing into the shell is focused and a swirl effect is formed.

[0034] In this embodiment, the air gathering blade guide portion 602 is formed by the air gathering blade mounting portion 601 extending toward the axial direction of the first mounting ring 5 and bending toward the air intake direction, and the upper end of the air gathering blade guide portion 602 exceeds the upper end of the first mounting ring 5 in the gas flow direction; Figure 2 and Figure 7 As shown, the gas gathering blade guide portion 602 is arranged as shown in the figure, and by arranging the upper end of the gas gathering blade guide portion 602 to exceed the upper end of the first mounting ring 5 in the gas flow direction, it can contact the airflow entering the device in advance and accelerate the channel length of the gas gathering channel, so that the airflow can be fully gathered in the gas gathering channel and form a first vortex gas.

[0035] In this embodiment, the free ends of the plurality of gas collecting blade guide portions 602 are arranged to overlap each other in the gas flow direction; Figure 5 As shown, by arranging the free ends of several gas-gathering blade guides 602 to overlap each other in the gas flow direction, it is possible to prevent the gas flowing into the separation channel from directly passing through the gas-gathering channel due to excessive flow velocity, especially the gas located in the center of the separation channel, so that the gas can all form the first vortex gas.

[0036] In this embodiment, the separation assembly includes a second mounting ring 7 and a plurality of separation blades 8 uniformly distributed along the circumferential direction on the inner side of the second mounting ring. The separation blades 8 are in a vortex structure and include a separation blade mounting portion 801 for connecting to the second mounting ring 7 and a separation blade guide portion 802 for guiding the first vortex gas. The plurality of separation blade guide portions 801 are spirally arranged on the second mounting ring 7 in the same clockwise direction or counterclockwise direction to form a second vortex structure. Figure 6 As shown, the separation component is also made by sheet metal stamping and consists of a second mounting ring 7 and a plurality of separation blades 8 circumferentially evenly distributed on the inner side of the second mounting ring 7, wherein the separation blades 8 are also in a vortex structure and include a separation blade mounting portion 801 for connecting to the second mounting ring 7 and a separation blade guide portion 802 for guiding the first vortex gas; by setting the separation blades 6 as a vortex structure and arranging them in a spiral manner, the first vortex gas flowing into the separation channel is focused again to form a second vortex gas.

[0037] In this embodiment, the separation blade guide portion 802 is formed by the separation blade mounting portion 801 extending toward the axial direction of the second mounting ring 7 and bending in the air intake direction, and the upper end of the separation blade guide portion 802 does not exceed the upper end of the second mounting ring 7 in the gas flow direction; Figure 2 and Figure 6As shown, the separation blades 8 are arranged as shown in the figure; the cross-sectional area of ​​the intake pipe located at the second vortex structure is smaller than the cross-sectional area of ​​the intake pipe located at the first vortex structure. In order to speed up the flow rate of the first swirl gas flowing into the separation channel, according to the basic principles of continuous medium mechanics, it is necessary to arrange the cross-sectional area of ​​the intake pipe located at the second vortex structure smaller than the cross-sectional area of ​​the intake pipe located at the first vortex structure.

[0038] In this embodiment, a plurality of separation slits 803 are provided on the separation blade guide portion 802, and the separation slits 803 are used to reduce the cross-sectional area of ​​the air intake pipe at the second vortex structure and accelerate the flow rate of the first vortex gas flowing through to form the second vortex gas; after the separation slits 803 are added in the path of the vortex blade, when the air passes through the narrow slit, there will be a change in flow rate; according to the basic principles of continuous medium mechanics, the fluid will follow the law of conservation of mass when flowing. When the air passes through a narrow slit, the flow rate will increase accordingly due to the smaller cross-sectional area of ​​the flow, mainly because the mass of the gas passing through per unit time is the same, but the cross-sectional area becomes smaller, so the flow rate increases.

[0039] In this embodiment, the housing 9 is a cylindrical structure and is provided with connecting parts connected to the air inlet pipe 3 at both ends in the gas flow direction; Figure 2-4 As shown, the shell 9 mainly serves as an external seal, constitutes a gas flow cross section and fixes the internal structure, so the shell 9 is provided with connecting parts connected to the air intake pipe 3 at both ends of the gas flow direction.

[0040] In this embodiment, a step portion for axially limiting the gas gathering component is provided in the connection portion at the front end of the shell 9, and a limit member 10 is provided on the end surface of the connection portion at the rear end of the shell, and the limit member is used to cooperate with the step portion to fix the gas gathering component and the separation component in the shell; Figure 4 As shown, in order to ensure the installation of the gas gathering assembly and the separation assembly in the shell 9, a step portion for axially limiting the gas gathering assembly is provided in the connection portion of the shell 9 at the front end of the air inlet direction, and a limiting member 10 is provided on the end face of the connection portion at the rear end of the shell. The limiting member 10 can facilitate the disassembly and assembly of the gas gathering assembly and the separation assembly.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A supercharging device for an air intake pipeline, characterized in that: It comprises a shell arranged on the air intake pipeline, wherein a gas gathering channel and a separation channel are sequentially arranged in the shell along the gas flow direction, wherein a gas gathering component is arranged in the gas gathering channel, wherein the gas gathering component forms a first vortex structure in the gas gathering channel and is used to accelerate the gas flow rate flowing through the gas gathering channel to form a first swirl gas, and wherein a separation component is arranged in the separation channel, wherein the separation component forms a second vortex structure in the separation channel and is used to accelerate the gas flow rate flowing through the separation channel to form a second swirl gas.

2. The boosting device for an air intake pipe according to claim 1, characterized in that: The gas gathering component includes a first mounting ring and a plurality of gas gathering blades evenly distributed along the circumferential direction on the inner side of the first mounting ring. The gas gathering blades are in a vortex structure and include a gas gathering blade mounting portion for connecting to the first mounting ring and a gas gathering blade guide portion for guiding gas. The plurality of gas gathering blade guide portions are spirally arranged on the first mounting ring along the same clockwise direction or counterclockwise direction to form a first vortex structure.

3. The boosting device for an air intake pipe according to claim 2, characterized in that: The air gathering blade guide portion is formed by the air gathering blade mounting portion extending toward the axial direction of the first mounting ring and bending toward the air intake direction, and the front end of the air gathering blade guide portion in the gas flow direction exceeds the upper end of the first mounting ring.

4. The boosting device for an air intake pipe according to claim 3, characterized in that: The free ends of the gas collecting blade guide parts are arranged to overlap each other in the gas flow direction.

5. The boosting device for an air intake pipe according to claim 1, characterized in that: The separation assembly includes a second mounting ring and a plurality of separation blades uniformly distributed circumferentially on the inner side of the second mounting ring. The separation blades are in a vortex structure and include a separation blade mounting portion for connecting to the second mounting ring and a separation blade guide portion for guiding the first vortex gas. The plurality of separation blade guide portions are spirally arranged on the second mounting ring along the same clockwise direction or counterclockwise direction to form a second vortex structure.

6. The boosting device for an air intake pipe according to claim 5, characterized in that: The separation blade guide portion is formed by the separation blade mounting portion extending toward the axial direction of the second mounting ring and bending in the air intake direction, and the front end of the separation blade guide portion in the gas flow direction does not exceed the upper end of the second mounting ring.

7. The boosting device for an air intake pipe according to claim 6, characterized in that: The cross-sectional area of ​​the air intake pipe located at the second vortex structure is smaller than the cross-sectional area of ​​the air intake pipe located at the first vortex structure.

8. The boosting device for an air intake pipe according to claim 7, characterized in that: A plurality of separation slits are provided on the separation blade guide portion, and the separation slits are used to reduce the cross-sectional area of ​​the intake pipe at the second vortex structure and accelerate the flow rate of the first vortex gas flowing therethrough to form the second vortex gas.

9. The boosting device for an air intake pipe according to claim 1, characterized in that: The shell is a cylindrical structure and is provided with connecting parts connected to the air intake pipe at both ends in the gas flow direction.

10. The boosting device for an air intake pipe according to claim 9, characterized in that: A step portion for axially limiting the gas gathering assembly is provided in the connection portion located at the front end of the shell in the air intake direction, and a limiting member is provided on the end face of the connection portion located at the rear end of the shell, and the limiting member is used to cooperate with the step portion to fix the gas gathering assembly and the separation assembly in the shell.

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