CN221074463U - Air filter advances muffler, air intake system and car - Google Patents
Air filter advances muffler, air intake system and car Download PDFInfo
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- CN221074463U CN221074463U CN202322663027.6U CN202322663027U CN221074463U CN 221074463 U CN221074463 U CN 221074463U CN 202322663027 U CN202322663027 U CN 202322663027U CN 221074463 U CN221074463 U CN 221074463U
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- muffler
- air
- air inlet
- air filter
- shell
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- 230000003584 silencer Effects 0.000 claims description 27
- 238000003466 welding Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 abstract description 8
- 230000010349 pulsation Effects 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000030279 gene silencing Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model relates to the technical field of automobile accessories, and discloses an air filter front air inlet muffler, an air inlet system and an automobile, wherein the air filter front air inlet muffler comprises a rectangular shell, a first side surface of the shell is connected with a first end of a muffler air inlet pipe, a second end of the muffler air inlet pipe is used for being connected with an automobile body air inlet, and the bottom surface of the shell is connected with a muffler air outlet pipe; the first end of the muffler air outlet pipe penetrates through the bottom surface of the shell and extends to the set length of the cavity in the shell, and the second end of the muffler air outlet pipe is used for being connected with an air filter air inlet rubber pipe; based on the resistance single-side inserted air filter front air inlet muffler, the problem that the engine generates abnormal pulsation noise under certain specific working conditions is solved, and the driving experience of personnel on the vehicle is improved.
Description
Technical Field
The utility model relates to the technical field of automobile accessories, in particular to an air filter forward air inlet muffler, an air inlet system and an automobile.
Background
At present, an air filter of a conventional power large and medium-sized passenger car is directly connected with an air inlet of a car body through a rubber tube and is used as a part of an air inlet system. However, the structure can generate abnormal pulsation noise under certain specific working conditions of the engine, the noise is uncontrollable, the NVH performance of the whole vehicle is further affected, and the riding experience of passengers is reduced.
Publication No. CN215109239U discloses an engine intake muffler, in which a muffler air inlet is connected to an air outlet of an air cleaner, and a longitudinal cross-sectional area of a muffler chamber is gradually reduced from an air inlet end in a lateral direction. It can be seen that the muffler is arranged behind the air filter, so that the muffler is closer to the engine, and the air inlet pipeline of the engine behind the muffler is shorter, the air flow becomes disordered after passing through the muffler, and the air flow enters the engine less than steady flow or the steady flow effect is poor, and the air inlet fluctuation is easy to be caused, so that the engine is not beneficial to stable operation; in addition, the cross section area of the silencing cavity is gradually reduced to eliminate certain specific frequency noise, and if the size of the silencer cavity with the gradually-changed cross section is required to be redesigned to eliminate another frequency noise, the overall variation is larger, and the design is more complicated.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model aims to provide an air filter front air inlet silencer, an air inlet system and an automobile, solves the problem that an engine generates abnormal pulsation noise under certain specific working conditions based on the resistance single-side inserted air filter front air inlet silencer, and improves the driving experience of personnel on the automobile.
In order to achieve the above object, the present utility model is realized by the following technical scheme:
in a first aspect, an air filter front air intake silencer comprises a rectangular shell, wherein a first side surface of the shell is connected with a first end of a silencer air inlet pipe, a second end of the silencer air inlet pipe is used for being connected with an air inlet of a vehicle body, and the bottom surface of the shell is connected with a silencer air outlet pipe; the first end of the muffler air outlet pipe penetrates through the bottom surface of the shell and extends to the set length of the cavity in the shell, and the second end of the muffler air outlet pipe is used for being connected with an air filter air inlet rubber pipe.
As a further implementation mode, a first round hole is formed in the first side face of the shell, a second round hole is formed in the bottom face of the shell, the shell is connected with the muffler air inlet pipe through the first round hole, and the shell is matched with the outer peripheral face of the pipe body of the muffler air outlet pipe through the second round hole.
As a further implementation mode, one end, far away from the shell, of the air inlet pipe of the silencer is hooped, and the air inlet pipe of the silencer is connected with the air inlet rubber pipe of the silencer through a T-shaped clamp.
As a further implementation mode, one end, far away from the shell, of the air outlet pipe of the silencer is hooped, and the muffler air outlet pipe is connected with an air filter air inlet rubber pipe through a T-shaped clamp.
As a further implementation manner, the casing adopts a plurality of rectangular plates with different sizes to be welded to form a cuboid structure.
As a further implementation mode, the top surface of the shell is provided with a fixed support, and the shell and the vehicle body can be fixedly connected through the fixed support.
As a further implementation manner, the second round hole is arranged at the center of the bottom surface of the shell.
In a second aspect, an automotive air intake system includes an air filter forward air muffler as described above.
As a further implementation mode, a muffler air inlet pipe of the air filter forward air inlet muffler is connected with one end of a muffler air inlet rubber pipe, and the other end of the muffler air inlet rubber pipe is connected with an air inlet of a vehicle body; the muffler air outlet pipe of the air filter forward air inlet muffler is connected with one end of an air filter air inlet rubber pipe, and the other end of the air filter air inlet rubber pipe is connected with the air filter.
In a third aspect, an automobile comprises an automobile air intake system as described above.
The beneficial effects of the utility model are as follows:
1. The air filter forward air inlet muffler is in a cuboid shape, the first end of the muffler air outlet pipe penetrates through the bottom surface of the shell and extends to the set length of the cavity in the shell, and based on the mode that noise with specific frequency is eliminated by gradually reducing the sectional area of the silencing cavity, the length of the air path is adjusted according to different noise sound wave frequencies, and the length of the muffler air outlet pipe inserted into the shell and the diameter of the muffler air outlet pipe can eliminate noise with specific abnormal pulsation in a targeted manner; the size of the cuboid shell is easy to change, when the noise frequency is changed, only the bottom plate with the silencer air outlet pipe of the shell can be dismounted, the bottom plate with the silencer air outlet pipe with different insertion depths can be welded again, and the NVH performance of the whole car and the riding feeling of personnel on the car are improved.
2. The air filter forward air inlet muffler is arranged between the air filter and the air inlet of the vehicle body, is arranged between the air filter and the engine relative to the muffler, has a longer installation distance from the air inlet of the engine body, has a longer path for the muffled air to enter the engine, is convenient for the steady flow effect of the whole vehicle air inlet pipeline, reduces the fluctuation of the air inlet flow of the engine to the maximum extent, and ensures that the engine works more stably on the basis of ensuring the muffling.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a schematic diagram of the overall structure of an air intake system of the prior art;
FIG. 2 is a schematic diagram of the overall structure of an air intake system according to an embodiment of the present utility model;
FIG. 3 is a schematic view showing the overall structure of a hollow-filter-advance intake muffler according to an embodiment of the present utility model;
fig. 4 is a cross-sectional view of a hollow filter forward air muffler in accordance with an embodiment of the present utility model.
In the figure: the mutual spacing or dimensions are exaggerated for the purpose of showing the positions of the various parts, and the schematic illustration is only schematic.
Wherein: 1. the automobile body air inlet, the air filter air inlet rubber pipe, the air filter air inlet, and the fixing clamp; 5. the muffler comprises a muffler air inlet rubber pipe, a 6 air filter front air inlet muffler, 7.T type clamps, 61 type muffler air inlet pipes, 62 type shells, 63 type fixing brackets and 64 type muffler air outlet pipes.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
In the prior air filter advancing air inlet system, as shown in fig. 1, an air inlet 1 at a vehicle body, an air filter air inlet rubber tube 2 and an air filter air inlet 3, wherein the air filter air inlet rubber tube 2 is fixed on the vehicle body air inlet 1 and the air filter air inlet 3 through a fixing clamp 4. However, the structure can generate abnormal pulsation noise under certain specific working conditions of the engine, so that NVH performance of the whole vehicle is affected, and riding experience of passengers is reduced.
Example 1
In an exemplary embodiment of the present utility model, referring to fig. 2-4, an air filter front air intake muffler 6 includes a rectangular shaped housing 62, and the housing 62 is formed in a rectangular structure by welding rectangular plates of different sizes. Specifically, six 1mm thick steel plates with three sizes are welded to form the steel plate.
As shown in fig. 2-4, a first side of the housing 62 is provided with a first circular hole, and a bottom surface of the housing 62 is provided with a second circular hole, which is provided at a bottom center position of the housing 62. The housing 62 is connected with the muffler air inlet pipe 61 through a first round hole, and the bottom surface of the housing 62 is matched with the outer circumferential surface of the muffler air outlet pipe 64 through a second round hole. The first side of the housing 62 is connected to a first end of a muffler inlet pipe 61, and a second end of the muffler inlet pipe 61 is used to connect to the vehicle body inlet 1.
Specifically, a first end of the muffler outlet pipe 64 penetrates through the bottom surface of the housing 62 and extends to a set length of the cavity inside the housing 62, and a second end of the muffler outlet pipe 64 is used for connecting with the air filter inlet rubber pipe 2.
It will be appreciated that both muffler inlet pipe 61 and muffler outlet pipe 64 are stainless steel pipes.
As shown in fig. 3, the muffler inlet pipe 61 is hooped at an end remote from the housing 62 for connection with the muffler inlet hose 5 by the T-clip 7. The muffler outlet pipe 64 is hooped at an end remote from the housing 62 for connection to the air filter inlet hose 2 via a T-clip 7.
The top surface of the shell 62 is provided with a fixed bracket 63, the fixed bracket 63 is welded with the top surface of the shell 62, and the shell 62 can realize the fixed connection of the air filter front air inlet muffler 6 and the corresponding position of the vehicle body through the fixed bracket 63, thereby being beneficial to the fixation of the whole air filter front air inlet muffler 6; the fixing bracket 63 is made of steel plate, and is welded with an M10 bolt for fixing.
The first end of the muffler outlet pipe 64 of this embodiment passes through the bottom surface of the housing 62 and extends to a set length of the cavity inside the housing 62, and the second end of the muffler outlet pipe 64 is used to connect the air filter inlet hose 2. The air filter forward air intake muffler 6 utilizes the working principle of resistive muffling to design a bottom surface single side plug-in air intake muffler, i.e., a first end of a muffler air outlet pipe 64 passes through the bottom surface of the housing 62 and extends to a set length of the cavity inside the housing.
The rectangular parallelepiped housing 62 can reduce the occupation of the whole vehicle space, is convenient to install, and is regular in size. Noise of a specific abnormal pulsation is targeted to be eliminated by adjusting the ratio of the cross-sectional area of the housing to the cross-sectional area of the muffler outlet pipe 64 and the length of the muffler outlet pipe 64 extending into the housing 62. The NVH performance of the whole vehicle can be effectively improved, and the driving experience of personnel on the vehicle is improved.
Referring to fig. 3 and 4, a×b represents a shell cross-sectional area; l is the length of the airflow path; l0 is the length of the muffler air outlet pipe extending into the muffler shell part; d is the diameter of the muffler air outlet pipe.
The working principle based on resistive noise elimination is that the noise reduction capability, that is, the transmission loss calculation formula of sound waves passing through the muffler is tl=20lg|msinkltankl o |, wherein M is the expansion ratio, m=s/S, S is the cavity sectional area, that is, the size a×b in fig. 3, S is the noise outlet pipe sectional area pi×d/4; k=2pi f/c, f is the sound wave frequency, c is the sound velocity 340m/s, and k is the sound wave number; l is the path length traversed by the acoustic wave in the cavity, i.e., L in fig. 4;
L o is the length of the muffler outlet pipe 64 inserted into the housing, i.e., L0 in fig. 4. According to the embodiment, noise data are collected through the data acquisition equipment, the numerical values of the size A, B in the figure 3 and the sizes L, L0 and D in the figure 4 can be adjusted according to different noise sound wave frequencies, noise of a certain specific abnormal pulsation can be eliminated in a targeted mode, and NVH performance of the whole vehicle and driving feeling of personnel on the vehicle are improved.
The air filter of this embodiment advances gas silencer 6 and sets up between air filter and automobile body air inlet 1, locates between air filter and the engine for the silencer, and its installation is longer apart from engine body air inlet distance, and the route that the gaseous entering engine after the amortization is longer, is convenient for through the stationary flow effect of whole car air inlet line, furthest reduces the fluctuation of engine air inlet flow for the engine work is more stable on the basis of guaranteeing the amortization.
The air filter advancing air inlet muffler takes the transmission loss calculation of the muffler as guidance, and can eliminate abnormal pulsation sounds generated by sound waves with different frequencies at the air inlet of the whole vehicle and reduce air inlet noise by adjusting the cross section area of the air inlet shell and the insertion depth of the air outlet pipe of the muffler under the condition of inconvenient overall appearance.
Compared with the mode of eliminating noise with specific frequency by gradually reducing the sectional area of the silencing cavity, the size of the cuboid housing in the embodiment is easy to change, and when the noise frequency is changed, only the bottom plate with the silencer air outlet pipe of the housing can be dismounted, and the bottom plate with the silencer air outlet pipe 64 with different insertion depths can be welded again. Therefore, when the air filter front air inlet muffler is required to be adjusted in the face of noise frequency change, the limitation is small, even if the shell size is changed, steel plates with different sizes are adopted for welding, and the mode that the cross section area of the silencing cavity is gradually reduced to eliminate noise with specific frequency is adopted, and the air filter front air inlet muffler is required to be manufactured through corresponding die machining, so that the complexity is high.
Example two
An automobile air intake system is shown in fig. 2, and comprises an air filter forward air intake silencer in the first embodiment, wherein the air filter forward air intake silencer comprises a shell 62, a silencer air inlet pipe 61 on the shell 62 is connected with one end of a silencer air intake rubber pipe 5 through a T-shaped clamp 7, and the other end of the silencer air intake rubber pipe is connected with an automobile body air inlet 1 through the T-shaped clamp 7; the muffler gas outlet pipe 64 of the air filter front gas inlet muffler is connected with one end 2 of an air filter gas inlet rubber pipe through a T-shaped clamp 7, the other end of the air filter gas inlet rubber pipe 2 is connected with the air filter gas inlet 3 on the air filter through the T-shaped clamp 7, and the air filter front gas inlet muffler 6 is fixedly connected with a vehicle body through a fixed bracket 63.
Example III
An automobile adopts the automobile air intake system in the second embodiment.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The front air intake silencer of the air filter is characterized by comprising a rectangular shell, wherein the first side surface of the shell is connected with the first end of an air inlet pipe of the silencer, the second end of the air inlet pipe of the silencer is connected with an air inlet of a vehicle body, and the bottom surface of the shell is connected with an air outlet pipe of the silencer; the first end of the muffler air outlet pipe penetrates through the bottom surface of the shell and extends to the set length of the cavity in the shell, and the second end of the muffler air outlet pipe is used for being connected with an air filter air inlet rubber pipe.
2. The air filter forward air inlet muffler according to claim 1, wherein the first side surface of the housing is provided with a first round hole, the bottom surface of the housing is provided with a second round hole, the housing is connected with the muffler air inlet pipe through the first round hole, and the housing is matched with the outer peripheral surface of the muffler air outlet pipe through the second round hole.
3. An air filter forward air intake muffler as defined in claim 2, wherein the muffler air inlet pipe is hooped at an end remote from the housing for connection to the muffler air inlet hose via a T-clip.
4. An air filter forward air intake muffler as defined in claim 2 wherein the muffler outlet pipe is hooped at an end remote from the housing for connection to the air filter air intake hose via a T-clip.
5. An air filter forward air intake muffler as defined in claim 1 wherein said housing is formed in a rectangular parallelepiped configuration by welding a plurality of rectangular plates of different sizes.
6. The air filter front air intake silencer of claim 5, wherein the top surface of the shell is provided with a fixing bracket, and the shell is fixedly connected with the vehicle body through the fixing bracket.
7. An air filter forward air intake muffler as defined in claim 2, wherein the second circular hole is provided at a bottom center position of the housing.
8. An automotive air intake system comprising an air filter forward air muffler as claimed in any one of claims 1 to 7.
9. The automobile air intake system of claim 8, wherein a muffler air inlet pipe of the air filter front air inlet muffler is connected with one end of a muffler air inlet rubber pipe, and the other end of the muffler air inlet rubber pipe is connected with an air inlet of an automobile body; the muffler air outlet pipe of the air filter forward air inlet muffler is connected with one end of an air filter air inlet rubber pipe, and the other end of the air filter air inlet rubber pipe is connected with the air filter.
10. An automobile comprising the automobile air intake system of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322663027.6U CN221074463U (en) | 2023-09-28 | 2023-09-28 | Air filter advances muffler, air intake system and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322663027.6U CN221074463U (en) | 2023-09-28 | 2023-09-28 | Air filter advances muffler, air intake system and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221074463U true CN221074463U (en) | 2024-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322663027.6U Active CN221074463U (en) | 2023-09-28 | 2023-09-28 | Air filter advances muffler, air intake system and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221074463U (en) |
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2023
- 2023-09-28 CN CN202322663027.6U patent/CN221074463U/en active Active
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