All-terrain vehicle

Abstract

The invention provides an all-terrain vehicle which comprises an engine, at least part of the engine is arranged on a vehicle frame and comprises a ventilation system, and the ventilation system comprises a separation assembly. Wherein the separation assembly comprises a first assembly, a second assembly and a third assembly, and when the particle size of the particulate matter is smaller than the first particle size, the first assembly is used for separating oil and gas in the particulate matter; when the particle size of the particulate matter is larger than or equal to the first particle size and smaller than the second particle size, the second assembly is used for separating oil and gas in the particulate matter; when the particle size of the particulate matter is larger than or equal to the second particle size, the third assembly is used for separating oil and gas in the particulate matter; wherein the separation precision of the second assembly is larger than that of the third assembly and smaller than that of the first assembly, and the second particle size is larger than the first particle size. Through the arrangement, the structural design of the ventilation system is flexible and rapid, the product research and development period is shortened, and the design convenience of the ventilation system is improved.

Description

Technical Field

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

[0002] An all-terrain vehicle is a vehicle that can travel on all terrains, with features such as a higher chassis, a suspension with better shock absorption performance, tires with better grip, and stronger power. Compared with ordinary vehicles, all-terrain vehicles can travel in extremely harsh environments, including but not limited to beaches, mountains, forests, swamps, etc., and have been widely used in farms and entertainment venues.

[0003] Among them, internal combustion engines in the vehicle industry occupy a large market share. At present, all models of internal combustion engines (such as naturally aspirated, turbocharged and supercharged direct injection, etc.) usually use forced ventilation systems when facing national environmental protection requirements. When designing different crankcase ventilation systems for engines of different models and displacements, there are various separation structures such as labyrinth, cyclone separation and non-woven fabric structure, but there is currently no design evaluation method for oil-gas separation efficiency and separation performance, which limits the design of ventilation systems and poses a serious challenge to the design of ventilation systems. Summary of the invention

[0004] In order to address the deficiencies of the prior art, the present application provides an all-terrain vehicle with a convenient ventilation system structure design.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] An all-terrain vehicle includes: a frame; a body covering, which is at least partially arranged on the frame; a steering assembly, which is at least partially arranged on the frame; an engine, which is at least partially arranged on the frame and includes a ventilation system, and the ventilation system includes a separation assembly; a transmission assembly, which is at least partially transmission-connected to the engine; and a travel assembly, which is at least partially transmission-connected to the transmission assembly. The separation assembly includes a first assembly, a second assembly, and a third assembly, and when the particle size of the particulate matter is smaller than the first particle size, the first assembly is used to separate the oil and gas in the particulate matter; when the particle size of the particulate matter is greater than or equal to the first particle size and smaller than the second particle size, the second assembly is used to separate the oil and gas in the particulate matter; when the particle size of the particulate matter is greater than or equal to the second particle size, the third assembly is used to separate the oil and gas in the particulate matter; wherein the separation accuracy of the second assembly is greater than the separation accuracy of the third assembly and less than the separation accuracy of the first assembly, and the second particle size is greater than the first particle size.

[0007] Further, the first component includes a first structure; the second component includes a first structure, a second structure and / or a third structure; and the third component includes a first structure, a second structure, a third structure and / or a fourth structure.

[0008] Further, the second structure includes a separation plate for separating particulate matter, a first shell and a first channel, the separation plate is arranged in the first shell, and the first channel is arranged on the separation plate.

[0009] Further, the separation plate includes a first separation plate and a second separation plate, the first channel includes a first conveying channel and a second conveying channel, the first conveying channel is arranged on the first separation plate, the first conveying channel is arranged as a through hole, and the second conveying channel is arranged on the second separation plate.

[0010] Further, the first separation plate is arranged on the front side of the second separation plate, and a surface of the second separation plate on a side close to the first separation plate extends toward the direction close to the first separation plate to form a protruding structure.

[0011] Further, the third structure includes a baffle, a second shell and a second channel, the baffle is at least partially arranged in the second shell, and the second channel is arranged on the baffle.

[0012] Further, the baffle includes a first baffle and a second baffle, the second channel includes a third conveying channel and a fourth conveying channel, the third conveying channel is arranged at the upper end of the first baffle, and the fourth conveying channel is arranged at the lower end of the second baffle.

[0013] Further, the first baffle and the second baffle are alternately arranged in the second housing in sequence.

[0014] Furthermore, the fourth structure includes an air outlet structure and a third shell, and the ventilation system includes an air supply pipe, which extends into the third shell to form the air outlet structure.

[0015] Furthermore, the air outlet structure is configured to be in a long strip shape.

[0016] The all-terrain vehicle provided in the present application makes the structural design of the ventilation system flexible and fast through the arrangement of the first component, the second component and the third component, thereby reducing the product development cycle and improving the convenience of the ventilation system design. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the all-terrain vehicle of the present application.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the engine of the present application.

[0019] Figure 3 This is a schematic cross-sectional structural diagram of the engine of the present application.

[0020] Figure 4 This is a schematic diagram of the principle of the ventilation system of the present application.

[0021] Figure 5This is a structural diagram of the first structure of this application.

[0022] Figure 6 This is a schematic diagram of the structure of the second structure of the present application.

[0023] Figure 7 This is a schematic diagram of the structure of the third structure of the present application.

[0024] Figure 8 This is a structural diagram of the fourth structure of the present application. DETAILED DESCRIPTION

[0025] In order to make the technical scheme of the present application better understood by the persons skilled in the art, the technical scheme in the specific implementation mode of the present application will be described clearly and completely in combination with the drawings in the implementation mode of the present application. It should be understood that, for the ordinary technicians in the field, the above description can be improved or changed, and all these improvements and changes should belong to the protection scope of the claims attached to the present application.

[0026] like Figure 1 and Figure 2 As shown, an all-terrain vehicle 100 includes a frame 11, a body cover 12, a steering assembly 13, a transmission assembly 14 and a travel assembly 15. The frame 11 is used to support the body cover 12, the steering assembly 13, the transmission assembly 14 and the travel assembly 15. The body cover 12 is at least partially disposed on the frame 11, and the body cover 12 is used to cover the internal parts of the all-terrain vehicle 100. The steering assembly 13 is at least partially disposed on the frame 11, and the steering assembly 13 is used to control the driving direction of the all-terrain vehicle 100. The present application also provides an engine 200, which is at least partially disposed on the frame 11, and the engine 200 is used to output the driving force of the all-terrain vehicle 100. The transmission assembly 14 is at least partially connected to the engine 200, and the transmission assembly 14 is used to transmit the driving force output by the engine 200. The travel assembly 15 is connected to the transmission assembly 14, and the travel assembly 15 is used to drive the all-terrain vehicle 100 to travel.

[0027] like Figures 2 to 4As shown, the engine 200 includes a housing 21, a crank-connecting rod mechanism 22, a valve system 23, an ignition system 24 and a ventilation system 300. A receiving space 211 is formed inside the housing 21, and the crank-connecting rod mechanism 22, the valve system 23 and the ignition system 24 are all arranged in the receiving space 211. The housing 21 can prevent dust and other impurities from entering the receiving space 211, thereby protecting the crank-connecting rod mechanism 22, the valve system 23 and the ignition system 24. The valve system 23 is at least partially connected to the external space, and the valve system 23 is used to transport air to the engine 200 and filter impurities such as dust and moisture in the air. Among them, a delivery channel 212 is provided in the housing 21, and the delivery channel 212 is used to transport air, fuel or lubricant, etc. The housing 21 is also provided with an oil collecting chamber 213, which is used to collect and contain oil such as lubricant or coolant in the engine 200. The oil is at least partially delivered to various parts of the engine 200 through the delivery channel 212, and the oil is also at least partially driven by the gears to splash to various parts of the engine 200, thereby achieving functions such as lubrication and cooling. Further, the delivery channel 212 includes an intake channel 2121 and an exhaust channel 2122, and the fuel and air form an oil-gas mixture in the intake channel 2121. This arrangement facilitates full combustion of the fuel and improves the efficiency of the engine 200. The housing 21 is also provided with a combustion chamber 214, in which the ignition system 24 is at least partially provided, and the crank-connecting rod mechanism 22 is also at least partially provided in the combustion chamber 214. The combustion chamber 214 is at least partially connected to the intake passage 2121. After the oil-gas mixture enters the combustion chamber 214 through the intake passage 2121, the ignition system 24 ignites the oil-gas mixture, so that the oil-gas mixture burns and performs work, and the chemical energy of the oil-gas mixture is converted into mechanical energy of the engine 200 through the crank-connecting rod mechanism 22. The exhaust passage 2122 is at least partially connected to the combustion chamber 214, and the exhaust passage 2122 is also at least partially connected to the external space, and the exhaust gas formed after the oil-gas mixture is burned is discharged outside the engine 200 through the exhaust passage 2122. Among them, the gas in the combustion chamber 214 will inevitably leak into the accommodating space 211 and mix with the oil in the accommodating space 211 to form oil droplet-shaped particles. The ventilation system 300 is at least partially connected to the accommodating space 211. The ventilation system 300 is used to separate the particles into oil and gas, and guide the oil therein to flow back to the oil collecting chamber 213, and transfer the gas therein to the exhaust channel 2122 or to the intake channel 2121, so that it is discharged outside the engine 200 or enters the combustion chamber 214 for re-combustion, thereby preventing the particles in the accommodating space 211 from corroding the components of the engine 200, thereby improving the reliability, fuel economy and environmental protection of the engine 200.

[0028] like Figure 4As shown, as an embodiment, the ventilation system 300 includes a separation component 31 and an air pipe 32. One end of the separation component 31 is connected to the accommodating space 211 through the air pipe 32, and the other end of the separation component 31 is connected to the intake channel 2121 or the exhaust channel 2122 through the air pipe 32. In the present application, the other end of the separation component 31 is connected to the intake channel 2121 through the air pipe 32. During the operation of the crank-connecting rod mechanism 22, negative pressure is generated in the combustion chamber 214 to suck the gas in the intake channel 2121 into the combustion chamber 214. This arrangement sucks the gas in the accommodating space 211 into the intake channel through the negative pressure of the intake channel 2121, so that it enters the combustion chamber 214 and burns again. It can be understood that a driving member can also be provided in the ventilation system 300 to transfer the gas in the accommodating space 211 to the intake channel 2121 through the driving member. The separation component 31 is also provided with an oil outlet 311, which is provided at one end of the separation component 31 away from the accommodation space 211, and the oil outlet 311 is connected to the oil collecting chamber 213, so that the oil separated from the particles flows back to the oil collecting chamber 213 through the oil outlet 311. In order to clearly explain the technical solution of the present application, the following is also defined: Figure 4 Upper side, lower side, left side, right side shown.

[0029] The separation component 31 includes a first component, a second component and a third component, and the separation accuracy of the second component is greater than the separation accuracy of the third component and less than the separation accuracy of the first component. When the particle size of the particulate matter is smaller than the first particle size, the first component is used to separate the oil and gas in the particulate matter; when the particle size of the particulate matter is greater than or equal to the first particle size and smaller than the second particle size, the second component is used to separate the oil and gas in the particulate matter; when the particle size of the particulate matter is greater than or equal to the second particle size, the third component is used to separate the oil and gas in the particulate matter. Among them, the second particle size is greater than the first particle size, and the first particle size and the second particle size both refer to the particle size with the most concentrated distribution in the particulate matter. Through the above settings, the separation effect of the separation component 31 on the oil and gas in the particulate matter of different particle sizes can be improved, thereby improving the separation performance and applicability of the separation component 31.

[0030] Specifically, the separation component 31 can be set as a first structure 312, a second structure 313, a third structure 314 or a fourth structure 315. The first component includes the first structure 312; the second component includes the first structure 312, the second structure 313 and / or the third structure 314; the third component includes the first structure 312, the second structure 313, the third structure 314 and / or the fourth structure 315.

[0031] More specifically, the second component includes at least one of the first structure 312, the second structure 313 and the third structure 314; or the second component includes at least two of the first structure 312, the second structure 313 and the third structure 314; or the second component includes a combination of three of the first structure 312, the second structure 313 and the third structure 314. The third component includes at least one of the first structure 312, the second structure 313, the third structure 314 and the fourth structure 315; or the third component includes at least two of the first structure 312, the second structure 313, the third structure 314 and the fourth structure 315; or the third component includes at least three of the first structure 312, the second structure 313, the third structure 314 and the fourth structure 315; or the third component includes a combination of four of the first structure 312, the second structure 313, the third structure 314 and the fourth structure 315. Through the above arrangement, the diversity and flexibility of the design of the separation component 31 are improved and the applicability of the separation component 31 is improved.

[0032] like Figure 5 As shown, as an embodiment, one end of the first structure 312 is connected to the combustion chamber 214 through the gas pipe 32, and the other end of the first structure 312 is connected to the intake channel 2121 through the gas pipe 32. The first structure 312 is provided with a filter structure 3121, and the filter structure 3121 can be provided as a non-woven fabric. This structure can directly filter and separate the oil and gas in the particulate matter, and the separation method is simple and convenient, and the oil and gas in the particulate matter with different particle sizes can be effectively separated.

[0033] like Figure 6As shown, as an embodiment, the second structure 313 includes a separation plate 3131, a first shell 3132 and a first channel 3133. One end of the first shell 3132 is connected to the accommodating space 211 through the gas pipe 32, and the other end of the first shell 3132 is connected to the intake channel 2121 through the gas pipe 32. The other end of the first shell 3132 is also provided with an oil outlet 311. After the particles in the accommodating space 211 are separated into oil and gas by the separation component 31, the gas is transferred to the intake channel 2121 through the gas pipe 32 and re-enters the combustion chamber 214 through the intake channel 2121, and the oil flows back to the oil collecting chamber 213 through the oil outlet 311. The separation plate 3131 is arranged in the first shell 3132, and the first channel 3133 is arranged on the separation plate 3131. Since the gas has strong fluidity and low viscosity, the flow direction of the gas can be deflected at a large angle when it flows through the separation plate 3131, so that the gas can bypass the separation plate 3131 through the first channel 3133 and continue to flow. Since the oil has high viscosity, the oil mixed in the particles cannot follow the airflow to bypass the separation plate 3131, so that when the oil encounters the separation plate 3131, it is captured by the separation plate 3131 and the first shell 3132 collects the captured oil and guides the oil to flow back to the oil collecting chamber 213 through the oil outlet 311, thereby achieving the separation of oil and gas in the particles. This structure can separate oil and gas from particles within a large particle size range, and has good versatility and practicality; and the noise generated when the particles pass through is small, which will not interfere with the driver's driving of the all-terrain vehicle 100, thereby improving the comfort of the all-terrain vehicle 100; at the same time, the structure is simple and practical, easy to manufacture and maintain, and saves manufacturing and maintenance costs.

[0034] Specifically, the separation plate 3131 includes a first separation plate 3131a and a second separation plate 3131b, and the first channel 3133 includes a first conveying channel 3133a and a second conveying channel 3133b. The first conveying channel 3133a is arranged on the first separation plate 3131a, and the second conveying channel 3133b is arranged on the second separation plate 3131b. Along the flow direction of the particulate matter, the first separation plate 3131a is arranged on the front side of the second separation plate 3131b, the first conveying channel 3133a is arranged as a through hole, and the surface of the second separation plate 3131b close to the first separation plate 3131a extends in the direction close to the first separation plate 3131a to form a protruding structure 3131c. The second conveying channel 3133b is arranged on the second separation plate 3131b. As an optional embodiment, the axis of the first conveying channel 3133a and the axis of the first separation plate 3131a are basically coincident, and the second conveying channel 3133b is arranged on the edge of the second separation plate 3131a. The first delivery channel 3133a can block the passage of oil with a larger diameter, and plays a role of preliminary screening for oil-gas separation. The protruding structure 3131c on the second separation plate 3131b makes the flow path of the particulate fluid more complicated, so that the second separation plate 3131b is easier to capture the oil, and the separation performance of the separation component 31 is further improved. At the same time, when the particulate fluid passes through the first delivery channel 3133a, the pressure of the particulate fluid increases and the flow rate increases due to the reduction in the diameter of the flow channel. The increase in the flow rate of the particulate fluid increases the inertia of the oil, so that the oil is easier to be captured by the second separation plate 3131b, and the separation effect of the separation component 31 is improved.

[0035] like Figure 7As shown, as an implementation method, the third structure 314 includes a baffle 3141, a second shell 3142 and a second channel 3143. One end of the second shell 3142 is connected to the accommodating space 211 through the gas pipe 32, and the other end of the second shell 3142 is connected to the air intake channel 2121 through the gas pipe 32. The other end of the second shell 3142 is also provided with an oil outlet 311. After the particles in the accommodating space 211 are separated into oil and gas by the separation component 31, the gas is transferred to the air intake channel 2121 through the gas pipe 32 and re-enters the combustion chamber 214 through the air intake channel 2121, and the oil flows back to the oil collecting chamber 213 through the oil outlet 311. The baffle 3141 is arranged in the second housing 3142, and the second channel 3143 is arranged on the baffle 3141. Since the gas has strong fluidity and low viscosity, the flow direction of the gas can be deflected at a large angle when it flows through the baffle 3141, so that the gas can bypass the baffle 3141 through the second channel 3143 and continue to flow. Since the viscosity of the oil is relatively high, the oil mixed in the particles cannot follow the airflow to bypass the baffle 3141, so that the oil is captured by the baffle 3141 when it encounters the baffle 3141, and the second housing 3142 collects the captured oil and guides the oil to flow back to the oil collecting chamber 213 through the oil outlet 311, thereby achieving the separation of the oil and gas in the particles. This structure can separate oil and gas from particulate matter within a larger particle size range, and has good versatility and practicality; and the noise generated when the particulate matter passes through is small, which will not interfere with the driver's driving of the all-terrain vehicle 100, thereby improving the comfort of the all-terrain vehicle 100; at the same time, the structure is simple and practical, easy to manufacture and maintain, and saves manufacturing and maintenance costs.

[0036] Further, the baffle 3141 includes a first baffle 3141a and a second baffle 3141b, and the second channel 3143 includes a third conveying channel 3143a and a fourth conveying channel 3143b. Along the up-down direction of the separation component 31, the third conveying channel 3143a is arranged at the upper end of the first baffle 3141a, and the fourth conveying channel 3143b is arranged at the lower end of the second baffle 3141b. As an optional embodiment, the first baffle 3141a and the second baffle 3141b are alternately arranged in the second housing 3142. Of course, the arrangement order of the first baffle 3141a and the second baffle 3141b can also be adjusted according to actual needs. This structure can continuously change the flow direction of the particulate fluid, and the deflection angle of the flow direction of the particulate fluid is small each time. This arrangement method reduces the pressure loss of the particulate fluid while ensuring the separation effect of the separation component 31. It can be understood that, according to actual needs, the third conveying channel 3143a is set at the edge of the first baffle 3141a, and the fourth conveying channel 3143b is set at the edge of the second baffle 3141b, and the axis of the third conveying channel 3143a and the axis of the fourth conveying channel 3143b are basically parallel or arranged at a certain angle, which is also within the protection scope of this application.

[0037] like Figure 8As shown, as an embodiment, the fourth structure 315 includes an air outlet structure 3151 and a third shell 3152. At least a portion of the third shell 3152 is connected to the accommodating space 211 through the air delivery pipe 32, and at least a portion of the third shell 3152 is also connected to the air inlet channel 2121 through the air delivery pipe 32. The air delivery pipe 32 connecting the third shell 3152 and the air inlet channel 2121 extends into the third shell 3152 to form the air outlet structure 3151, and the air outlet structure 3151 is configured as a long strip. It can be understood that the gas outlet structure 3151 includes an inlet 3151a and an outlet 3151b, wherein the inlet 3151a is arranged in the third housing 3152, and the outlet 3151b is connected to the gas supply pipe 32. The particles in the accommodating space 211 enter the third housing 3152 through the gas supply pipe 32, and the particles rotate in the third housing 3152 due to inertia, and collide with the third housing 3152 due to the centrifugal force, so that the oil in the particles is captured by the third housing 3152. Along the up and down direction of the separation component 31, the oil outlet 311 is arranged at the lower end of the separation component 31, and the oil flows to the oil outlet 311 under the action of gravity and flows back to the oil collecting chamber through the oil outlet 311. The particles in the structure rebound from the third housing 3152 and collide with the particles that subsequently flow into the third housing 3152, making the flow direction of the particles complex and changeable, thereby improving the separation performance of the separation component 31, and the structure is simple, the operation is flexible, the efficiency is high, and it is easy to manufacture and maintain. Preferably, the third housing 3152 is configured as a conical structure, and the diameter of the third housing 3152 gradually decreases from top to bottom along the vertical direction of the separation component 31, that is, the separation component 31 is basically configured in a funnel shape. This configuration facilitates the third housing 3152 to guide the gas to flow toward the inlet 3151a of the gas outlet structure 3151 and facilitates the third housing 3152 to guide the oil to flow toward the oil outlet 311, thereby improving the separation performance of the separation component 31.

[0038] In the present application, by configuring the first component, the second component and the third component, the structural design of the ventilation system 300 is flexible and fast, which reduces the product development cycle and improves the convenience of the design of the ventilation system 300; at the same time, by configuring the first structure 312, the second structure 313, the third structure 314 and the fourth structure 315, the ventilation system 300 can be used to separate particles of different particle sizes and has good separation performance, thereby improving the versatility of the ventilation system 300.

[0039] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. An all-terrain vehicle comprising: Frame; a body covering, the body covering being at least partially disposed on the vehicle frame; a steering assembly, the steering assembly being at least partially disposed on the frame; an engine, the engine being at least partially disposed on the frame and comprising a ventilation system, wherein the ventilation system comprises a separation assembly; a transmission assembly, the transmission assembly being at least partially transmission-connected to the engine; A traveling assembly, wherein the traveling assembly is at least partially transmission-connected to the transmission assembly; It is characterized in that The separation component includes a first component, a second component and a third component. When the particle size of the particulate matter is smaller than the first particle size, the first component is used to separate the oil and gas in the particulate matter; when the particle size of the particulate matter is greater than or equal to the first particle size and smaller than the second particle size, the second component is used to separate the oil and gas in the particulate matter; when the particle size of the particulate matter is greater than or equal to the second particle size, the third component is used to separate the oil and gas in the particulate matter; wherein the separation accuracy of the second component is greater than the separation accuracy of the third component and less than the separation accuracy of the first component, and the second particle size is greater than the first particle size.

2. The all-terrain vehicle according to claim 1, characterized in that: The first component includes a first structure; the second component includes a first structure, a second structure and / or a third structure; the third component includes a first structure, a second structure, a third structure and / or a fourth structure.

3. The all-terrain vehicle according to claim 2, characterized in that: The second structure includes a separation plate for separating the particulate matter, a first housing, and a first channel. The separation plate is disposed in the first housing, and the first channel is disposed on the separation plate.

4. The all-terrain vehicle according to claim 3, characterized in that: The separation plate includes a first separation plate and a second separation plate, the first channel includes a first conveying channel and a second conveying channel, the first conveying channel is arranged on the first separation plate, the first conveying channel is arranged as a through hole, and the second conveying channel is arranged on the second separation plate.

5. The all-terrain vehicle according to claim 4, characterized in that: The first separation plate is arranged at the front side of the second separation plate, and a surface of the second separation plate close to the first separation plate extends toward the first separation plate to form a protruding structure.

6. The all-terrain vehicle according to claim 2, characterized in that: The third structure includes a baffle, a second housing, and a second channel, wherein the baffle is at least partially disposed in the second housing, and the second channel is disposed on the baffle.

7. The all-terrain vehicle according to claim 6, characterized in that: The baffle includes a first baffle and a second baffle, the second channel includes a third conveying channel and a fourth conveying channel, the third conveying channel is arranged at the upper end of the first baffle, and the fourth conveying channel is arranged at the lower end of the second baffle.

8. The all-terrain vehicle according to claim 7, characterized in that: The first baffles and the second baffles are alternately arranged in sequence in the second housing.

9. The all-terrain vehicle according to claim 2, characterized in that: The fourth structure includes an air outlet structure and a third shell, and the ventilation system includes an air supply pipe, which extends into the third shell to form the air outlet structure.

10. The all-terrain vehicle according to claim 9, characterized in that: The air outlet structure is configured in a long strip shape.

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