CN216975072U - Air inlet device of multi-cylinder engine and motorcycle - Google Patents
Air inlet device of multi-cylinder engine and motorcycle Download PDFInfo
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- CN216975072U CN216975072U CN202123057245.2U CN202123057245U CN216975072U CN 216975072 U CN216975072 U CN 216975072U CN 202123057245 U CN202123057245 U CN 202123057245U CN 216975072 U CN216975072 U CN 216975072U
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Abstract
The utility model relates to the technical field of engines, and discloses an air inlet device of a multi-cylinder engine and a motorcycle. The utility model provides a method for separating air outlets of an engine, which is characterized in that a partition wall is arranged between the air outlets of adjacent air outlet pipes, and the distance between the end surface of one end of the partition wall, which is opposite to an installation plate, and the installation plate is larger than the maximum distance between the air outlets and the installation plate, so that the air outlets can be effectively separated, the air inlet interference of the engine is avoided, and the performance of the engine is ensured. Meanwhile, the shell of the air filter is not required to be enlarged, and the arrangement of an engine is convenient.
Description
Technical Field
The utility model relates to the technical field of engines, in particular to an air inlet device of a multi-cylinder engine and a motorcycle comprising the air inlet device of the multi-cylinder engine.
Background
In the case of a multi-cylinder engine, when the engine is in operation, if the outlet distances of adjacent outlet pipes in the air inlet device are close, air inlet interference may occur. For such a situation, a common solution is to arrange the outlets of the outlet pipes 100 of the cylinders at a relatively long distance. However, this approach has two disadvantages (as shown in fig. 4): 1. the length of the outlet pipe 100 is longer, which is not favorable for high-speed performance; 2. the arrangement space of the shell needs to be large, the size of the air filter box body can be enlarged, and the difficulty of whole vehicle arrangement is increased.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides an air inlet device of a multi-cylinder engine and a motorcycle, which avoid air inlet interference on the premise of not increasing an air filter shell, ensure the performance of the engine and facilitate the arrangement of the engine.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides an air inlet unit of multi-cylinder engine, includes the casing, the casing includes the mounting panel, be equipped with a plurality of outlet ducts on the mounting panel, just the gas outlet of outlet duct extends to the inside of casing is adjacent be equipped with between the gas outlet of outlet duct and cut apart the wall, just it keeps away from to cut apart the wall the terminal surface of the one end of mounting panel with interval between the mounting panel is greater than the gas outlet with the biggest interval between the mounting panel.
Preferably, a distance between an end face of the partition wall, which faces one end of the mounting plate, and the mounting plate is a, a maximum distance between the air outlet and the mounting plate is b, and an inner diameter of the air outlet pipe is d, where a-b is (0.45-0.55) d.
Preferably, the air outlet pipe is arranged obliquely towards the horizontal plane, an included angle between the axis of the air outlet pipe and the horizontal plane is c, and the value range of c is 15-25 degrees.
Preferably, the height of the partition wall is h, and the inner diameter of the outlet pipe is d, h ═ 40-60 tan + (20-30) + d.
Preferably, a gap is left between the upper end of the partition wall and the upper end of the housing, and a gap is left between the lower end of the partition wall and the lower end of the housing.
Preferably, the distance between the upper end of the partition wall and the upper end of the housing is x, and the vertical height of the mounting plate is y, where x is (0.25-0.35) y.
Preferably, the partition wall is integrally formed with the housing.
A motorcycle comprises the air inlet device of the multi-cylinder engine in the technical scheme.
Preferably, the inner diameter of the outlet pipe is d, and the thickness of the dividing wall is (0.09-0.11) d.
Compared with the prior art, the air inlet device of the multi-cylinder engine has the advantages that: the partition wall is arranged between the air outlets of the adjacent air outlet pipes, and the distance between the end face of the end, facing the mounting plate, of the partition wall and the mounting plate is larger than the maximum distance between the air outlets and the mounting plate, so that the air outlets can be effectively separated, air inlet interference of the engine is avoided, and the performance of the engine is guaranteed. Meanwhile, the shell of the air filter is not required to be enlarged, and the arrangement of an engine is convenient. The utility model has simple structure, good use effect and easy popularization and use.
Drawings
Fig. 1 is a schematic structural view of an intake apparatus of a multi-cylinder engine of the present invention.
Fig. 2 and 3 are sectional views of the intake device of the multi-cylinder engine of the present invention.
Fig. 4 is a schematic structural view of a conventional intake device.
Wherein: 1-shell, 11-mounting plate, 2-air outlet pipe, 21-air outlet and 3-partition wall.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
As shown in fig. 1 to 3, an air intake device of a multi-cylinder engine according to a preferred embodiment of the present invention includes an air cleaner housing 1, where the housing 1 includes a mounting plate 11, the mounting plate 11 is provided with a plurality of air outlet pipes 2, air outlets 21 of the air outlet pipes 2 extend into the housing 1, a partition wall 3 is provided between the air outlets 21 of the adjacent air outlet pipes 2, and the partition wall 3 is fixed on the mounting plate 11 and is integrally formed with the housing 1, so as to ensure the connection strength between the partition wall 3 and the housing 1. And the end face of one end of the partition wall 3 far away from the mounting plate 11 and the distance between the mounting plates 11 are greater than the maximum distance between the air outlet 21 and the mounting plates 11.
According to the air inlet device of the multi-cylinder engine based on the technical characteristics, the partition walls 3 are arranged between the air outlets 21 of the adjacent air outlet pipes 2, and the distance between the end face of one end, facing the mounting plate 11, of each partition wall 3 and the mounting plate 11 is larger than the maximum distance between the air outlets 21 and the mounting plate 11, so that the air outlets 21 can be effectively separated, air inlet interference of the engine is avoided, and the performance of the engine is guaranteed. Meanwhile, the shell of the air filter is not required to be enlarged, and the arrangement of an engine is convenient. The utility model has simple structure, good use effect and easy popularization and use.
In this embodiment, the end surface of the partition wall 3 facing the end of the mounting plate 11 is parallel to the inner surface of the mounting plate 11, and the distance between the end surface and the inner surface of the mounting plate 11 is a, the maximum distance between the air outlet 21 and the inner surface of the mounting plate 11 is b, and the inner diameter of the air outlet pipe 2 is d, so that a-b is (0.45-0.55) d, for example, 0.5 d. Experiments have shown that the effect of placing the inlet air interference between the air outlets 21 is the best when the values of a-b lie between (0.45-0.55) d.
In this embodiment, the outlet pipe 2 is inclined toward the horizontal plane, an included angle between the axis of the outlet pipe 2 and the horizontal plane is c, and a value range of c is 15 to 25 degrees, such as 17 degrees, 22 degrees, and the like. During the actual preparation, mounting panel 11 slope sets up, outlet duct 2 with mounting panel 11 looks vertical setting, promptly contained angle between mounting panel 11 and the vertical plane is c, thereby makes 2 slopes of outlet duct set up, make things convenient for the gas circulation. When the size of c is determined, the height h of the partition wall 3 may also be determined, specifically, by the formula h ═ 40 to 60 tan + (20 to 30) + d, where the inner diameter of the outlet pipe 2 is d, such as h ═ 50tan +25+ d, h ═ 48tan +28+ d, and the thickness of the partition wall 3 is (0.09 to 0.11) d, such as 0.1 d.
In this embodiment, a gap is left between the upper end of the partition wall 3 and the upper end of the housing 1, and between the lower end of the partition wall 3 and the lower end of the housing 1, that is, both ends of the partition wall 3 are not connected to the inner wall of the housing 1, and the gap can be used for placing other parts, so that the volume of the cavity of the air filter can be effectively utilized. Specifically, if the distance between the upper end of the partition wall 3 and the upper end of the housing 1 is x and the vertical height of the mounting plate 11 is y, x is (0.25-0.35) y. However, it should be noted that, on the premise of satisfying this relationship, h ═ 40 to 60 tan + (20 to 30) + d is also required, so that the dimensions of the respective mechanisms must be considered in practice to ensure the best technical effect.
In order to solve the technical problem, the utility model also provides a motorcycle which comprises the air inlet device of the multi-cylinder engine in the technical scheme.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (8)
1. An air intake device of a multi-cylinder engine, characterized in that: which comprises a housin, the casing includes the mounting panel, be equipped with a plurality of outlet ducts on the mounting panel, just the gas outlet of outlet duct extends to the inside of casing is adjacent be equipped with between the gas outlet of outlet duct and cut apart the wall, just it keeps away from to cut apart the wall the terminal surface of the one end of mounting panel with interval between the mounting panel is greater than the gas outlet with the biggest interval between the mounting panel, cut apart the wall the upper end with between the upper end of casing the lower extreme of cutting apart the wall with all leave the clearance between the lower extreme of casing.
2. The intake apparatus of a multi-cylinder engine according to claim 1, wherein: the distance between the end face of one end, opposite to the mounting plate, of the partition wall and the mounting plate is a, the maximum distance between the air outlet and the mounting plate is b, the inner diameter of the air outlet pipe is d, and a-b is equal to (0.45-0.55) d.
3. The intake apparatus of a multi-cylinder engine according to claim 1, wherein: the air outlet pipe is arranged obliquely towards the horizontal plane, an included angle between the axis of the air outlet pipe and the horizontal plane is c, and the value range of c is 15-25 degrees.
4. The intake apparatus of a multi-cylinder engine according to claim 3, wherein: the height of the partition wall is h, the inner diameter of the air outlet pipe is d, and h is (40-60) tan + (20-30) + d.
5. The intake apparatus of a multi-cylinder engine according to claim 1, wherein: the distance between the upper end of the partition wall and the upper end of the shell is x, the vertical height of the mounting plate is y, and x is (0.25-0.35) y.
6. The intake apparatus of a multi-cylinder engine according to any one of claims 1 to 5, wherein: the partition wall is integrally formed with the housing.
7. The intake apparatus of a multi-cylinder engine according to any one of claims 1 to 5, wherein: the inner diameter of the air outlet pipe is d, and the thickness of the partition wall is (0.09-0.11) d.
8. A motorcycle characterized in that: an air intake arrangement comprising a multi-cylinder engine as claimed in any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123057245.2U CN216975072U (en) | 2021-12-06 | 2021-12-06 | Air inlet device of multi-cylinder engine and motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123057245.2U CN216975072U (en) | 2021-12-06 | 2021-12-06 | Air inlet device of multi-cylinder engine and motorcycle |
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| Publication Number | Publication Date |
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| CN216975072U true CN216975072U (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123057245.2U Active CN216975072U (en) | 2021-12-06 | 2021-12-06 | Air inlet device of multi-cylinder engine and motorcycle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278472A (en) * | 2021-12-06 | 2022-04-05 | 江门市大长江集团有限公司 | Air inlet device of multi-cylinder engine and motorcycle |
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2021
- 2021-12-06 CN CN202123057245.2U patent/CN216975072U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278472A (en) * | 2021-12-06 | 2022-04-05 | 江门市大长江集团有限公司 | Air inlet device of multi-cylinder engine and motorcycle |
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