Air inlet pipe, automobile air inlet structure with air inlet pipe and automobile

Abstract

The utility model discloses an air inlet pipe, an automobile air inlet structure with the air inlet pipe and an automobile, and relates to the technical field of automobile air inlet systems. Comprising a pipe body, an air inlet and an air outlet are formed in the two ends of the pipe body respectively, a flow guide channel is formed in the pipe body, the two ends of the flow guide channel are communicated with the air inlet and the air outlet respectively, and the sectional area of the flow guide channel is gradually decreased in the air inlet direction. The air inlet pipe has the advantages that the sectional area of the flow guide channel in the pipe body is gradually reduced, the air inlet efficiency is improved, and sufficient air inlet amount is provided for an engine.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile air intake system, especially to an air intake pipe, an automobile air intake structure with the same and an automobile. BACKGROUND

[0002] Generally, in the air intake system of the engine of a vehicle, air is sucked in through an air intake pipe, then filtered by air cleaner elements in an air cleaner, and supplied to the air intake port of the engine, the air intake amount of the engine directly affects the combustion efficiency of the engine. Appropriate air intake can ensure that the mixing ratio of fuel and air reaches the best, thereby improving the combustion efficiency and reducing the residual unburned substances.

[0003] However, when the engine is running, the amount of air entering the combustion chamber of the engine through the air intake pipe is small, resulting in low air intake efficiency of the engine, thereby causing low combustion efficiency of the engine. SUMMARY

[0004] Therefore, the utility model aims to provide an air intake pipe, an automobile air intake structure with the same and an automobile, which can increase the air intake amount of the engine through improvement of the air intake pipe.

[0005] The utility model provides an air intake pipe, which comprises a pipe body, the two ends of the pipe body are an air inlet and an air outlet respectively, a flow guide channel is formed in the pipe body, the two ends of the flow guide channel are communicated with the air inlet and the air outlet respectively, and the cross-sectional area of the flow guide channel gradually decreases in the air intake direction.

[0006] Optionally, the pipe body comprises an air intake section, an air guide section and an air outlet section connected in sequence along the extension direction of the pipe body, the air inlet is located in the air intake section, the air outlet is located in the air outlet section, the flow guide channel is located in the air guide section, the air intake section and the air outlet section have airflow channels, the airflow channels in the air intake section and the air outlet section are communicated with the flow guide channel, and the cross-sectional area of the pipe body gradually decreases at the pipe body in the air guide section.

[0007] Optionally, the port cross-sectional area of the air guide section is greater than that of the air intake section at the port connecting the air intake section and the air guide section.

[0008] Optionally, the air intake section and the air guide section are connected at an angle.

[0009] Optionally, the pipe body is provided with a wind deflector on the inner wall of the air intake section, and the wind deflector guides the airflow entering from the air inlet to the air guide section.

[0010] Optionally, the cross-sectional area of the air outlet section gradually increases in the air intake direction.

[0011] Optionally, the pipe body comprises an upper shell and a lower shell, and the upper shell and the lower shell are detachably connected.

[0012] Optionally, the upper shell is provided with a flange along its periphery, the lower shell has two opposite side walls, the side walls of the lower shell are provided with protrusions, surfaces of the protrusions facing the opposite side walls are guide surfaces, the guide surfaces gradually move away from the corresponding side walls in the direction extending from the upper shell to the lower shell, the lower shell has a stop portion below the protrusions, the upper shell is elastically deformable, and the flange of the upper shell is deformed to fit the guide surfaces of the protrusions in the process of contacting the protrusions, and is finally clamped between the protrusions and the stop portion.

[0013] The utility model also provides an automobile air intake structure, including air cleaner, car head and air inlet pipe as described above, the car head is provided with air inlet, the air inlet pipe is communicated with the air inlet through the air inlet of air inlet section and air inlet section and car head is detachably connected, the air outlet of air inlet pipe is communicated with air cleaner, and the air inlet section of air inlet pipe is equipped with buffer block at car head junction.

[0014] The utility model also provides an automobile, including the automobile air intake structure as described above. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced to the drawing needed in the embodiment, should understand, the following drawings only shows some embodiments of the utility model, therefore should not be regarded as the limitation to the range, for the ordinary skill in the art person, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.

[0016] Figure 1 It is a whole structure schematic diagram of the air inlet pipe of the utility model.

[0017] Figure 2 It is a partial structure schematic diagram of the air inlet pipe of the utility model.

[0018] Figure 3 It is Figure 2 It is the partial enlarged view of A in the middle.

[0019] Figure 4 It is a partial structure schematic diagram of the air inlet pipe of the utility model.

[0020] Figure 5 It is Figure 4 It is the partial enlarged view of B in the middle.

[0021] Figure 6 It is a partial structure schematic diagram of the air inlet pipe of the utility model.

[0022] Figure 7 For Figure 6 A local enlarged view at C.

[0023] Figure 8 The utility model discloses a structure schematic diagram of upper shell of air inlet pipe.

[0024] Figure 9 The utility model discloses a structure schematic diagram of automobile air intake structure.

[0025] Figure 10 For Figure 9 A local enlarged view at D.

[0026] In the figure:

[0027] The pipe body 10, the air inlet 11, the air outlet 12, the air inlet section 13, the connecting wall 130, the second pipe wall 131, the air deflector 132, the air guide section 14, the first pipe wall 141, the air outlet section 15, the third pipe wall 151, the upper shell 16, the flange 161, the lower shell 17, the side wall 171, the protruding block 172, the guide surface 1721, the stop portion 173;

[0028] The air filter 20;

[0029] The vehicle head 30, the air inlet block 31;

[0030] The screw 40;

[0031] The buffer block 50. DETAILED DESCRIPTION

[0032] The specific embodiments of the utility model will be described in detail below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the description of the utility model, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of the utility model.

[0033] Unless otherwise explicitly specified and limited, the terms "arrange", "mount", "connect" and the like should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be mechanically connected, can be electrically connected, can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0034] The terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the utility model product is usually placed, and are only for the convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0035] The terms "first", "second", "third" and the like are only for distinguishing similar attributes of elements, and do not indicate or imply relative importance or a particular order.

[0036] The terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, in addition to including the listed elements, other elements not explicitly listed can also be included.

[0037] As shown in Figure 1 The embodiment provides an air inlet pipe, which comprises a pipe body 10, the pipe body 10 comprises an upper shell 16 and a lower shell 17, the upper shell 16 and the lower shell 17 are enclosed to form a closed body with both ends being permeable, and the upper shell 16 and the lower shell 17 are provided with a flow passage for airflow. The two ends of the pipe body 10 are respectively an air inlet 11 and an air outlet 12, a flow guide channel is formed in the pipe body 10, the two ends of the flow guide channel are communicated with the air inlet 11 and the air outlet 12 respectively, and the cross-sectional area of the flow guide channel gradually decreases in the air inlet direction.

[0038] In the embodiment, the cross-sectional area of the flow guide channel in the pipe body 10 is designed to gradually decrease, that is, the space of the flow guide channel in the pipe body 10 gradually decreases in the air inlet direction. When the airflow flows through the flow guide channel, the flow rate of the airflow in the flow guide channel can be increased due to the gradually decreasing space of the flow guide channel, so that the air inlet efficiency of the air inlet pipe is higher, more air inlet quantity is provided for the engine, and the combustion efficiency of the engine is ensured.

[0039] Specifically, as shown in Figure 2 , Figure 4 and Figure 5 ( Figure 2 , Figure 4 and Figure 5In order to show the internal structure, the upper shell 16 of the pipe body 10 is hidden, the pipe body 10 includes the air inlet section 13, the air guide section 14 and the air outlet section 15 connected in sequence along the extension direction of the pipe body 10, the air inlet 11 is located in the air inlet section 13, the air outlet 12 is located in the air outlet section 15, the flow guide channel is located in the air guide section 14, the air flow channels are arranged in the air inlet section 13 and the air outlet section 15, the air flow channels in the air inlet section 13 and the air outlet section 15 are communicated with the flow guide channel, the cross-sectional area of the pipe body at the air guide section 14 gradually decreases, specifically, the side walls of the pipe body at the air guide section 14 gradually close to each other, as shown in Figure 5 The first pipe wall 141 at the bottom of the pipe body 10 at the air guide section 14 gradually inclines upward in the air inlet direction, the pipe wall at the top of the pipe body 10 opposite to the first pipe wall 141 at the air guide section 14 keeps the same height, then the spacing between the top pipe wall and the first pipe wall 141 gradually decreases, and the space between the top pipe wall and the first pipe wall 141 gradually decreases, so that the air flow rate is increased, and more air is provided for the engine.

[0040] In addition, as shown in Figure 2 and Figure 3 In order to further increase the air flow rate, the port cross-sectional area of the air guide section 14 is greater than that of the air inlet section 13 at the port connecting the air inlet section 13 and the air guide section 14, specifically, the height of the first pipe wall 141 at the bottom of the air guide section 14 is lower than that of the second pipe wall 131 at the bottom of the air inlet section 13, the second pipe wall 131 of the air inlet section 14 extends downwardly with a connecting wall 130, the connecting wall 130 is connected with the first pipe wall 141 of the air guide section 14, so that the air guide section 14 has a larger accommodation space to accommodate the air flow after the air flow flows from the air inlet 11 of the air inlet section 13 into the air guide section 14, and then the air flow rapidly passes through the air guide section 14 under the guidance of the air guide section 14, thereby increasing the air inlet efficiency.

[0041] And, as shown in Figure 4 and Figure 5 The air flow channel is arranged in the air outlet section 15, the air flow channel is communicated with the flow guide channel, the cross-sectional area of the air outlet section 15 gradually increases in the air inlet direction, specifically, the first pipe wall 141 at the air guide section 14 gradually inclines upward in the air inlet direction, and the third pipe wall 151 at the bottom of the air outlet section 15 gradually inclines downward, the first pipe wall 141 and the third pipe wall 151 are connected at the port connecting the air guide section 14 and the air outlet section 15, since the inclination directions of the first pipe wall 141 and the third pipe wall 151 are opposite, the accommodation space of the pipe body 10 at the air outlet section 15 gradually increases, the air flow is accelerated in the air guide section 14 and rapidly flows into the air outlet section 15, the air outlet section 15 can provide a larger space to accommodate the air flow, and then the air flow is transmitted to the engine, and the air inlet efficiency is further increased in the air flow transmission process.

[0042] As shown in Figure 1 , Figure 2 and Figure 4 , the air inlet section 13 is connected with the air guide section 14 at an angle, which is convenient for adapting to the narrow space in the vehicle and is flexible for installation in the vehicle. Furthermore, the pipe body 10 is provided with a wind deflector 132 on the inner wall of the air inlet section 13. The wind deflector 132 is arc-shaped and is adapted to the curved shape between the air inlet section 13 and the air guide section 14. The wind deflector 132 guides the airflow entering from the air inlet 11 to the air guide section 14, thereby improving the air intake efficiency.

[0043] Further, the upper shell 16 and the lower shell 17 of the pipe body 10 are detachably connected, which is convenient for installation and maintenance of the air inlet pipe. Specifically, as shown in Figures 6 to 8 , the upper shell 16 is provided with a flange 161 along the periphery thereof, and the lower shell 17 has two opposite side walls 171. The side walls 171 of the lower shell 17 are provided with protrusions 172. The surface of the protrusions 172 facing the opposite side walls 171 is a guide surface 1721. The guide surface 1721 gradually moves away from the corresponding side wall 171 in the direction extending from the upper shell 16 to the lower shell 17. The lower shell 17 has a stop portion 173 below the protrusions 172. The upper shell 16 can be elastically deformed, for example, made of plastic material, and can be elastically deformed appropriately and has a certain strength. When the upper shell 16 and the lower shell 17 are installed, the lower shell 17 is first fixed in the vehicle, and then the upper shell 16 is covered on the lower shell 17. During the process of covering the lower shell 17, the upper shell 16 is gradually deformed and adapted to the guide surface 1721 of the protrusions 172. After the upper shell 16 completely passes through the lower shell 17, the upper shell 16 elastically deforms to the initial state and is finally clamped between the protrusions 172 and the stop portion 173. The flange 161 of the upper shell 16 is fixed by the protrusions 172 and the stop portion 173, thereby fixing the upper shell 16 and the lower shell 17 together. When the upper shell 16 needs to be disassembled, the user pinches the two sides of the upper shell 16 to make the upper shell 16 deform. After the upper shell 16 deforms, the flange 161 on the two sides of the upper shell 16 is out of contact with the protrusions 172. At this time, the upper shell 16 can be removed. After the upper shell 16 is removed, the upper shell 16 elastically deforms back to the initial state.

[0044] As described above, the air inlet pipe provided by the embodiment gradually reduces the cross-sectional area of the air guide section 14 to accelerate the flow rate of the airflow, thereby increasing the air intake amount of the engine. The air guide section 14 and the air inlet section 13 improve the air flow rate by the size difference of the port at the connection. The air outlet section 15 provides a larger air storage capacity by the variable cross-section and volume, thereby further increasing the air intake efficiency and ensuring the combustion efficiency in the engine.

[0045] As shown in Figure 9 and Figure 10As shown in the figure, the embodiment also provides an automobile air intake structure, which comprises an air cleaner 20, a vehicle head 30 and the air intake pipe as described above, the vehicle head 30 is provided with an air inlet, which is an opening of a conventional automobile for air intake, and an air inlet block 31 is arranged at the air inlet, the air inlet block 31 is provided with an opening, and the opening is communicated with the air inlet 11. The air intake pipe is communicated with the air inlet through the air inlet 11 of the air intake section 13, and the air intake section 13 is detachably connected with the vehicle head 30, for example, coaxial screw holes are arranged on the air intake section 13 and the vehicle head 30, and a screw 40 is screwed into the screw holes of the air intake section 13 and the vehicle head 30 to fixedly connect the air intake section 13 and the vehicle head 30, the air outlet 12 of the air intake pipe is communicated with the air cleaner 20, the air cleaner 20 is communicated with an engine, and the air intake section 13 of the air intake pipe is provided with a buffer block 50 at the connection position with the vehicle head 30, the buffer block 50 is also provided with an opening, the screw 40 is screwed into the opening of the buffer block 50, the buffer block 50 is arranged between the air intake section 13 and the vehicle head 30, and the buffer block 50 can reduce the vibration of the air intake pipe when the vehicle is running, and the buffer block 50 can be made of porous polyurethane.

[0046] In summary, the automobile air intake structure provided by the embodiment can improve the air intake efficiency, provide sufficient air intake for the engine, and protect the air intake pipe by arranging the buffer block 50, so that the relative displacement between the vehicle head 30 and the air intake pipe is avoided when the vehicle is running, and the air intake pipe is not firmly connected or damaged.

[0047] The embodiment also provides an automobile, which comprises the automobile air intake structure as described above.

[0048] The above describes only the specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An air intake pipe, characterized in that: The device includes a pipe body (10), with an air inlet (11) and an air outlet (12) at its two ends. A flow guide channel is formed inside the pipe body (10), with both ends connected to the air inlet (11) and the air outlet (12), respectively. The cross-sectional area of ​​the flow guide channel gradually decreases in the air intake direction. The pipe body (10) along its extension direction includes an air inlet section (13), a flow guide section (14), and an air outlet section (15) connected sequentially. The air inlet (11) is located in the air inlet section (13), the air outlet (12) is located in the air outlet section (15), the flow guide is located in the flow guide section (14), the air inlet section (13) and the air outlet section (15) have airflow channels, the airflow channels in the air inlet section (13) and the air outlet section (15) are all connected to the flow guide, and the cross-sectional area of ​​the pipe body (10) at the flow guide section (14) gradually decreases.

2. The intake pipe as described in claim 1, characterized in that: At the port where the air intake section (13) connects to the air guide section (14), the cross-sectional area of ​​the port of the air guide section (14) is greater than the cross-sectional area of ​​the port of the air intake section (13).

3. The intake pipe as described in claim 1, characterized in that: The air intake section (13) and the air guide section (14) are connected at an angle.

4. The intake pipe as described in claim 3, characterized in that: The pipe body (10) has a guide plate (132) on the inner wall of the air intake section (13), and the guide plate (132) guides the airflow entering from the air inlet (11) to the air guide section (14).

5. The intake pipe as described in claim 2, characterized in that: The cross-sectional area of ​​the exhaust section (15) gradually increases in the direction of air intake.

6. The intake pipe as described in claim 1, characterized in that: The tube body (10) includes an upper shell (16) and a lower shell (17), which are detachably connected.

7. The intake pipe as described in claim 6, characterized in that: The upper shell (16) has a flange (161) along its periphery. The lower shell (17) has two opposing sidewalls. The sidewalls of the lower shell (17) are provided with protrusions (172). The surface of the protrusions (172) facing the opposing sidewalls is a guide surface (1721). The guide surface (1721) gradually moves away from the corresponding sidewalls in the direction extending from the upper shell (16) to the lower shell (17). The lower shell (17) has a stop portion (173) below the protrusions (172). The upper shell (16) is elastically deformable. During the process of the flange (161) of the upper shell (16) contacting the protrusions (172), the upper shell (16) and the guide surface (1721) of the protrusions (172) deform to fit together and finally engage between the protrusions (172) and the stop portion (173).

8. An automobile air intake structure, characterized in that: Includes an air filter (20), a front end (30), and an air intake pipe as described in any one of claims 1-7. The front end (30) has an air inlet. The air intake pipe is connected to the air inlet through the air inlet (11) of the air intake section (13). The air outlet (12) of the air intake pipe is connected to the air filter (20), and the air intake section (13) is detachably connected to the front end (30). A buffer block (50) is provided at the connection between the air intake section (13) of the air intake pipe and the front end (30).

9. A car, characterized in that: Including the automotive air intake structure as described in claim 8.

Images