Power system of all-terrain vehicle and all-terrain vehicle

Abstract

The utility model provides an all-terrain vehicle power system and all-terrain vehicle, the power system comprises an engine, an air filter and an air throttle, the air filter comprises an air filter air inlet pipe and an air filter air outlet pipe, the cross sectional area of the inlet of the air filter air inlet pipe is S; the throttle valve comprises at least one throttle air inlet and at least one throttle air outlet, the throttle air inlet is communicated with the air filter air outlet pipe, the throttle air outlet is communicated with an air inlet of the engine, and the cross sectional area of the throttle air inlet is A; 1.31 < = S / A < = 3.13. The ratio of S to A ranges from 1.31 to 3.13, so that the power of the engine can be improved, the proper air inflow can be controlled, and the engine is prevented from being abraded excessively.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a power system of an all-terrain vehicle and the all-terrain vehicle. Background Art

[0002] The power system of an all-terrain vehicle usually includes an engine, a throttle valve and an air filter. The throttle valve is connected between the engine and the air filter. The air in the environment first enters the air filter, and then enters the engine through the throttle valve after being filtered, so that the gasoline in the engine can burn and generate power.

[0003] The power of an engine is related to the amount of clean gas entering the engine. Therefore, setting a suitable air filter and throttle valve to ensure the proper air intake of the engine is of great significance to fully exerting the engine performance. Utility Model Content

[0004] In order to solve the above problems, the embodiments of the present application provide a power system of an all-terrain vehicle and an all-terrain vehicle to at least partially solve the above problems.

[0005] In the first aspect, the present application provides a power system for an all-terrain vehicle, including an engine, an air filter and a throttle valve, the air filter including an air filter inlet pipe and an air filter outlet pipe, the cross-sectional area of ​​the air filter inlet pipe inlet is S; the throttle valve includes at least one throttle inlet port and at least one throttle outlet port, the throttle inlet port is connected to the air filter outlet pipe, the throttle outlet port is connected to the air inlet of the engine, and the cross-sectional area of ​​the throttle inlet port is A; 1.31≤S / A≤3.13.

[0006] Optionally, the power system also includes a retaining member, which includes a retaining cavity, a retaining air inlet and a retaining air outlet, the retaining air inlet and the retaining air outlet are both connected to the retaining cavity, and the retaining air inlet and the retaining air outlet are both arranged on the cavity wall of the retaining cavity; the retaining air inlet is connected to the air filter outlet pipe, and the retaining air outlet is connected to the throttle air inlet of the throttle valve.

[0007] Optionally, the engine includes cylinders, the number of the throttle air outlets is the same as the number of the cylinders, and the throttle air outlets are connected to the cylinders in a one-to-one correspondence.

[0008] Optionally, the number of the throttle air inlets, the throttle air outlets and the retention air outlets is the same, and the throttle air inlets and the retention air outlets are connected in a one-to-one correspondence.

[0009] Optionally, the air filter intake pipe includes a first main pipe body and a first expansion member, the first expansion member is connected to the pipe wall of the first main pipe body, the first expansion member has a first accommodating cavity, and the first accommodating cavity is in communication with the pipe cavity of the first main pipe body.

[0010] Optionally, the number of the first expansion components is at least two.

[0011] Optionally, the air filter outlet pipe includes a second main pipe body and a second expansion piece, the second expansion piece is connected to the pipe wall of the second main pipe body, the second expansion piece has a second accommodating cavity, and the second accommodating cavity is connected to the pipe cavity of the second main pipe body.

[0012] In a second aspect, the present application provides an all-terrain vehicle, comprising a frame and the above-mentioned power system, wherein the engine, the air filter and the throttle valve are all mounted on the frame.

[0013] Optionally, the all-terrain vehicle also includes a first bracket, which is mounted on the frame; the power system also includes a gearbox and a first ventilation pipe, which includes a first end and a second end relative to each other, the first end is connected to the gearbox, and the second end of the first ventilation pipe and the intake end of the air filter intake pipe are both mounted on the first bracket.

[0014] Optionally, the vehicle frame includes a second bracket, a front sub-frame, a rear sub-frame and a seat, the seat is located between the front sub-frame and the rear sub-frame, the second bracket is installed above the rear sub-frame, the air filter is located between the second bracket and the rear sub-frame, the upper end of the air filter is connected to the second bracket, and the lower end of the air filter is connected to the rear sub-frame.

[0015] Based on the above power system provided by the present application, ensuring that S is at least 1.31 times of A allows the throttle valve to receive enough filtered clean air, which helps to improve the engine power; while ensuring that S is at most 3.13 times of A, the air intake of the air filter can be controlled within a suitable range, thereby avoiding excessive intake volume, increased fuel consumption, and increased engine wear. Therefore, by making the ratio of S to A between 1.31 and 3.13, it can not only help to improve the engine power, but also help to control the appropriate intake volume and avoid excessive engine wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following drawings are intended only to illustrate and explain the present application, and do not limit the scope of the present application.

[0017] Figure 1 It is a top view of a partial structure of a power system provided by an exemplary embodiment of the present application.

[0018] Figure 2 It is a right view of a partial structure of a power system provided by an exemplary embodiment of the present application.

[0019] Figure 3 It is a rear view of a partial structure of a power system provided by an exemplary embodiment of the present application.

[0020] Figure 4 It is a front view of a throttle valve provided by an exemplary embodiment of the present application.

[0021] Figure 5 yes Figure 4 A left side view of a throttle valve is provided.

[0022] Figure 6 yes Figure 4 A top view of a throttle valve is provided.

[0023] Figure 7 It is a front view of another throttle valve provided by an exemplary embodiment of the present application.

[0024] Figure 8 yes Figure 7 A top view of another throttle valve is provided.

[0025] Fig. 9 It is a top view of an all-terrain vehicle provided by an exemplary embodiment of the present application, in which part of the structure of the power system is installed on the frame.

[0026] Fig.10 yes Fig. 9 A right side view of a portion of a power system of an all-terrain vehicle provided is shown mounted on a frame.

[0027] Reference numerals:

[0028] 10-air filter, 11-air filter inlet pipe, 110-first expansion member, 12-air filter outlet pipe, 120-second expansion member;

[0029] 20-retaining member, 21-retaining air inlet, 22-retaining air outlet;

[0030] 30-throttle valve, 31-throttle air inlet, 32-throttle air outlet; 40-engine;

[0031] 61-first ventilation pipe, 62-second ventilation pipe;

[0032] 51-first bracket, 52-second bracket, 71-front sub-frame, 72-rear sub-frame. DETAILED DESCRIPTION

[0033] In order to have a clearer understanding of the technical features, purposes and effects of the embodiments of the present application, the specific implementation methods of the embodiments of the present application are now described with reference to the accompanying drawings.

[0034] In this document, “exemplary” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “exemplary” should not be interpreted as a more preferred or more advantageous technical solution.

[0035] In order to simplify the drawings, only the parts related to the present application are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one or more of the parts with the same structure or function are schematically drawn or only one or more of them are marked.

[0036] The present application provides a power system for an all-terrain vehicle, referring to Figures 1 to 3 The power system includes an engine 40, an air filter 10 and a throttle valve 30. The air filter 10 includes an air filter inlet pipe 11 and an air filter outlet pipe 12. The cross-sectional area of ​​the inlet of the air filter inlet pipe 11 is S; the throttle valve 30 includes at least one throttle inlet port 31 and at least one throttle outlet port 32. The throttle inlet port 31 is connected to the air filter outlet pipe 12, and the throttle outlet port 32 is connected to the air inlet of the engine 40. The cross-sectional area of ​​the throttle inlet port 31 is A; 1.31≤S / A≤3.13.

[0037] Among them, the air in the atmospheric environment is filtered by the air filter 10 and then enters the throttle valve 30. The throttle valve 30 can control the amount of air entering the engine 40 according to the load of the engine 40. The engine 40 uses a mixture of air and fuel as fuel. Increasing the amount of air intake and the amount of fuel injection can help improve the power of the engine 40. However, if the amount of air intake is increased too much, the mixture ratio will be too rich, which will increase fuel consumption and produce more carbon deposits, increase the wear of the engine 40, and will not significantly improve the vehicle performance.

[0038] Therefore, based on the above power system provided by the present application, by optimizing the ratio between the cross-sectional area S of the inlet of the air filter intake pipe 11 and the cross-sectional area A of the throttle air inlet 31, it is ensured that S is at least 1.31 times of A, so that the throttle valve 30 can receive enough filtered clean air, which helps to improve the power of the engine 40; at the same time, it is ensured that S is at most 3.13 times of A, so that the intake volume of the air filter 10 can be controlled within a suitable range, thereby avoiding the situation where the intake volume is too large, which increases fuel consumption and aggravates the wear of the engine 40. Therefore, by making the ratio of S to A between 1.31 and 3.13, it can not only help to improve the power of the engine 40, but also help to control the appropriate intake volume to avoid excessive wear of the engine 40.

[0039] It should also be noted that the cross-sectional area A in the present application refers to the cross-sectional area of ​​a single throttle air inlet 31. If the throttle valve 30 includes two throttle air inlets 31, the total cross-sectional area of ​​the air inlet of the throttle valve 30 is 2A.

[0040] In one possible implementation, reference Figure 1 and Figure 3 The power system also includes a retaining member 20, which includes a retaining cavity, a retaining air inlet 21 and a retaining air outlet 22. The retaining air inlet 21 and the retaining air outlet 22 are both connected to the retaining cavity, and the retaining air inlet 21 and the retaining air outlet 22 are both arranged on the cavity wall of the retaining cavity; the retaining air inlet 21 is connected to the air filter outlet pipe 12, and the retaining air outlet 22 is connected to the throttle air inlet 31 of the throttle valve 30. Through this technical solution, the clean air filtered by the air filter 10 can be temporarily stored in the retaining cavity before entering the throttle valve 30. On the one hand, the throttle air inlet 31 of the throttle valve 30 is always filled with a large amount of clean air, which helps to ensure that sufficient clean air is provided to the engine 40, and helps to give full play to the performance of the engine 40. On the other hand, the space in the retaining cavity is large, which can reduce the flow rate of the clean air, thereby achieving the effect of silencing and noise reduction.

[0041] Furthermore, the engine 40 includes cylinders, and the number of throttle outlets 32 is the same as the number of cylinders, and the throttle outlets 32 and the cylinders are connected one by one. In this way, the intake volume of each cylinder can be controlled individually, so that the power of the engine 40 can be controlled more accurately, so that the power of the engine 40 matches the current load. For example, when there is one cylinder, it corresponds to a single-cylinder engine, and the throttle valve 30 has one throttle outlet 32; when there are two cylinders, it corresponds to a dual-cylinder engine, and the throttle valve 30 has two throttle outlets 32. Among them, Figures 4 to 6 A throttle valve 30 with two throttle air outlets 32 is shown. Figure 7 and Figure 8 Another throttle valve 30 is shown which has a throttle outlet 32 ​​.

[0042] Among them, the number of the throttle air inlet 31, the throttle air outlet 32 ​​and the reserved air outlet 22 is the same, and the throttle air inlet 31 and the reserved air outlet 22 are connected one by one. In other words, the number of the air inlet and the air outlet of the throttle valve 30 is the same and one by one, and the air outlet of the retaining member 20 is matched with the air inlet of the throttle valve 30, so that it can be ensured that the clean air can enter each throttle air inlet 31 in sufficient quantity, thereby providing a sufficient amount of clean air for each cylinder.

[0043] In one example, reference Figure 1 The number of cylinders is two, the number of air outlets 22 is two, and the number of air inlet 21 is one.

[0044] In one possible implementation, reference Figures 1 to 3 The air filter intake pipe 11 includes a first main body and a first expansion piece 110. The first expansion piece 110 is connected to the tube wall of the first main body. The first expansion piece 110 has a first accommodating cavity, and the first accommodating cavity is connected to the tube cavity of the first main body. Through this technical solution, the air entering the tube cavity of the first main body can stay in the first accommodating cavity for a short time, which not only reduces the air flow rate, but also changes the air flow direction, so as to achieve the effect of silencing and reducing noise. In one example, the first expansion piece 110 can be detachably sealed and connected to the tube wall of the first main body.

[0045] The number of the first expansion components 110 is at least two. For example, the number of the first expansion components 110 may be three.

[0046] In one possible implementation, reference Figures 1 to 3 The air filter outlet pipe 12 includes a second main body and a second expansion member 120, the second expansion member 120 is connected to the tube wall of the second main body, and the second expansion member 120 has a second accommodating cavity, which is connected to the tube cavity of the second main body. Through this technical solution, the clean air entering the tube cavity of the second main body can stay in the second accommodating cavity for a short time, thereby reducing the air flow rate and achieving the effect of silencing and noise reduction. In one example, the second expansion member 120 can be detachably sealed and connected to the tube wall of the second main body.

[0047] The present application also provides an all-terrain vehicle, referring to Fig. 9 and Fig.10 The all-terrain vehicle comprises a frame and the above-mentioned power system, and the engine 40, the air filter 10 and the throttle valve 30 are all mounted on the frame. Based on the beneficial effects of the above-mentioned power system, the all-terrain vehicle provided by the present application can give full play to the engine performance when driving, and reduce the wear rate of the engine.

[0048] In one possible embodiment, reference Figure 2 and Fig.10 The all-terrain vehicle further includes a first bracket 51, which is mounted on the vehicle frame; the power system further includes a gearbox and a first vent pipe 61, which includes a first end and a second end opposite to each other, the first end being connected to the gearbox, and the second end of the first vent pipe 61 and the air inlet end of the air filter inlet pipe 11 are both mounted on the first bracket 51. In this way, by mounting two air pipes, namely the first vent pipe 61 and the air filter inlet pipe 11, on the same first bracket 51, the structure can be simplified and the assembly efficiency of the all-terrain vehicle can be improved. The first vent pipe 61 can be used to balance the internal and external air pressure difference of the gearbox.

[0049] For further reference, Figure 2The power system may further include a second vent pipe 62, one end of which is connected to the gearbox. The second vent pipe 62 may be used to better balance the internal and external pressure difference of the gearbox.

[0050] In one example, the vehicle frame includes a second bracket 52, a front sub-frame 71, a rear sub-frame 72 and a seat, the seat is located between the front sub-frame 71 and the rear sub-frame 72, the second bracket 52 is installed above the rear sub-frame 72, the air filter 10 is located between the second bracket 52 and the rear sub-frame 72, the upper end of the air filter 10 is connected to the second bracket 52, and the lower end of the air filter 10 is connected to the rear sub-frame 72. Through this technical solution, the air filter 10 can be confined between the second bracket 52 and the rear sub-frame 72 to achieve stable installation. In addition, the seat is not shown in the figure.

[0051] In addition, an elastic member may be provided at the connection between the air filter 10 and the second bracket 52, and an elastic member may also be provided at the connection between the air filter 10 and the rear sub-frame 72. During the driving of the all-terrain vehicle, the elastic member can play a buffering and shock-absorbing role, which not only protects the air filter 10, but also helps to reduce noise.

[0052] Furthermore, the retaining member 20 and the throttle valve 30 may also be connected to the second bracket 52 to achieve stable installation.

[0053] It should be clarified that the directions used in this application are defined when the power system is installed on the ATV, that is, "up" and "down" are up and down in the direction of gravity. "Front" and "rear" are defined based on the front and rear of the ATV, with the front being in front and the rear being in the rear. "Left" and "right" are based on the driver's left hand side being left and the right hand side being right when the driver is driving the ATV.

[0054] It should be noted that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present application. The terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0055] It should be noted that although the specific embodiments of the present application are described in detail in conjunction with the accompanying drawings, this should not be construed as limiting the scope of protection of the present application. Within the scope described in the claims, various modifications and variations that can be made by those skilled in the art without creative work still fall within the scope of protection of the present application.

[0056] The examples of the embodiments of the present application are intended to concisely illustrate the technical features of the embodiments of the present application so that those skilled in the art can intuitively understand the technical features of the embodiments of the present application, and are not intended to be improper limitations of the embodiments of the present application.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A power system for an all-terrain vehicle, characterized in that: include: Engine (40), An air filter (10) comprises an air filter inlet pipe (11) and an air filter outlet pipe (12), wherein the cross-sectional area of ​​the inlet of the air filter inlet pipe (11) is S; A throttle valve (30) comprises at least one throttle inlet (31) and at least one throttle outlet (32), wherein the throttle inlet (31) is connected to the air filter outlet pipe (12), and the throttle outlet (32) is connected to the air inlet of the engine (40), and the cross-sectional area of ​​the throttle inlet (31) is A; 1.31≤S / A≤3.

13.

2. The power system according to claim 1, characterized in that: The power system further comprises a retaining member (20), the retaining member (20) comprising a retaining cavity, a retaining air inlet (21) and a retaining air outlet (22), the retaining air inlet (21) and the retaining air outlet (22) both being in communication with the retaining cavity, and the retaining air inlet (21) and the retaining air outlet (22) both being arranged on the cavity wall of the retaining cavity; The retaining air inlet (21) is in communication with the air filter outlet pipe (12), and the retaining air outlet (22) is in communication with the throttle air inlet (31) of the throttle valve (30).

3. The power system according to claim 2, characterized in that: The engine (40) comprises cylinders, the number of the throttle air outlets (32) is the same as the number of the cylinders, and the throttle air outlets (32) are connected to the cylinders in a one-to-one correspondence.

4. The power system according to claim 3, characterized in that: The number of the throttle air inlets (31), the throttle air outlets (32) and the retaining air outlets (22) is the same, and the throttle air inlets (31) and the retaining air outlets (22) are connected in a one-to-one correspondence.

5. The power system according to claim 1, characterized in that: The air filter intake pipe (11) comprises a first main pipe body and a first expansion piece (110), wherein the first expansion piece (110) is connected to the pipe wall of the first main pipe body, and the first expansion piece (110) has a first accommodating cavity, and the first accommodating cavity is in communication with the pipe cavity of the first main pipe body.

6. The power system according to claim 5, characterized in that: The number of the first expansion components (110) is at least two.

7. The power system according to claim 1, characterized in that: The air filter outlet pipe (12) comprises a second main pipe body and a second expansion piece (120), wherein the second expansion piece (120) is connected to the pipe wall of the second main pipe body, and the second expansion piece (120) has a second accommodating cavity, and the second accommodating cavity is in communication with the pipe cavity of the second main pipe body.

8. An all-terrain vehicle, characterized in that: The invention comprises a vehicle frame and a power system as claimed in any one of claims 1 to 7, wherein the engine (40), the air filter (10) and the throttle valve (30) are all mounted on the vehicle frame.

9. The all-terrain vehicle according to claim 8, characterized in that: The all-terrain vehicle further comprises a first bracket (51), wherein the first bracket (51) is mounted on the vehicle frame; the power system further comprises a gearbox and a first ventilation pipe (61), wherein the first ventilation pipe (61) comprises a first end and a second end opposite to each other, wherein the first end is connected to the gearbox, and the second end of the first ventilation pipe (61) and the air intake end of the air filter intake pipe (11) are both mounted on the first bracket (51).

10. The all-terrain vehicle according to claim 9, characterized in that: The vehicle frame comprises a second bracket (52), a front sub-frame (71), a rear sub-frame (72) and a seat, wherein the seat is located between the front sub-frame (71) and the rear sub-frame (72), the second bracket (52) is installed above the rear sub-frame (72), the air filter (10) is located between the second bracket (52) and the rear sub-frame (72), the upper end of the air filter (10) is connected to the second bracket (52), and the lower end of the air filter (10) is connected to the rear sub-frame (72).

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