Silencer and vehicle

Abstract

The utility model relates to a silencer and a vehicle, the silencer comprises a shell, the shell comprises an air inlet cavity, an exhaust cavity and an air guide channel, the exhaust cavity is arranged on one side of the air inlet cavity at intervals, the air guide channel is communicated with the air inlet cavity and the exhaust cavity, the air inlet cavity is provided with an air inlet communicated with the outside, and the exhaust cavity is provided with an exhaust port communicated with the outside. In the gas flowing direction, the cross section size of the gas inlet is smaller than that of the gas inlet cavity, the cross section size of the gas outlet is smaller than that of the gas outlet cavity, and the cross section size of the gas guide channel is smaller than that of the gas inlet cavity and that of the gas outlet cavity. The cross section area of the silencer is continuously changed for multiple times on a sound transmission path, so that the silencer has a smaller cross section area on the whole, the improvement of the silencing performance of the silencer in a limited space is realized, the reasonable layout of an installation space is facilitated, and the arrangement difficulty and requirements are reduced.

Description

Technical Field

[0001] This disclosure relates to the field of automotive parts technology, and more specifically, to a muffler and a vehicle. Background Technology

[0002] Depending on the load capacity required, vehicles are equipped with air braking systems for braking. The air supply for these systems comes from an air compressor driven by the engine crankshaft. Most air compressors employ a single-cylinder design, where the crankshaft drives a single piston in reciprocating motion, generating periodic pumping noise. Most trucks equipped with air braking systems incorporate an intake muffler for the air compressor to reduce noise around the driver's ears and at the air intake. Currently, a single-expansion chamber structure is commonly used for this type of muffler.

[0003] Currently, the single-waveform coverage frequency of the transmission loss curve of a single-cavity expanded cavity muffler is relatively low, resulting in a large number of troughs in the waveform within the commonly used frequency range. The noise reduction effect at the frequencies corresponding to these troughs is very poor. Furthermore, to increase the noise reduction peak value of a single-cavity expanded cavity muffler, the expansion ratio must be increased, which requires a very large cross-sectional area. This characteristic makes the design less aesthetically pleasing and more difficult to implement. Utility Model Content

[0004] The purpose of this disclosure is to provide a muffler and vehicle that can at least partially solve the technical problems existing in the related art.

[0005] To achieve the above objectives, this disclosure provides a muffler, including a housing, the housing comprising an air intake chamber, an exhaust chamber spaced apart on one side of the air intake chamber, and an air guide passage communicating between the air intake chamber and the exhaust chamber.

[0006] The air intake chamber is provided with an air intake port communicating with the outside, and the exhaust chamber is provided with an exhaust port communicating with the outside.

[0007] Along the gas flow direction, the cross-sectional dimension of the air inlet is smaller than the cross-sectional dimension of the air inlet chamber, the cross-sectional dimension of the exhaust port is smaller than the cross-sectional dimension of the exhaust chamber, and the cross-sectional dimension of the air guide channel is smaller than the cross-sectional dimensions of the air inlet chamber and the exhaust chamber.

[0008] Optionally,

[0009] The air guide channel extends along the X direction and is located on one side of the air intake chamber and the air exhaust chamber along the Z direction.

[0010] The intake chamber includes a first main chamber and a first venting section communicating with the first main chamber; the exhaust chamber includes a second main chamber and a second venting section communicating with the second main chamber.

[0011] The first ventilation section and the second ventilation section extend along the Z direction and are respectively connected to both ends of the air guiding channel.

[0012] Optionally, the housing has a partition with a transverse portion extending in the X direction to the first ventilation section and the second ventilation section, and the transverse portion is located in the Z direction between the air guide channel and the air inlet chamber and the air outlet chamber.

[0013] Optionally, the partition also has a longitudinal portion, one end of which extends to the transverse portion, and the other end extends in the Z direction away from the transverse portion and is located in the X direction between the intake chamber and the exhaust chamber.

[0014] Optionally,

[0015] The air inlet is a tubular structure protruding from the housing;

[0016] The exhaust port is constructed as a tubular structure protruding from the housing.

[0017] Optionally, the air inlet and the exhaust outlet are symmetrically arranged along the X direction on opposite sides of the air inlet chamber and the exhaust chamber.

[0018] Optionally,

[0019] The air guide channel extends along the X direction and is disposed between the air intake chamber and the exhaust chamber, with both ends of the air guide channel communicating with the air intake chamber and the exhaust chamber, respectively.

[0020] Optionally, it also includes a fastener that protrudes from the outside of the housing for mounting the muffler in a predetermined position.

[0021] Optionally, the muffler is a blow-molded part.

[0022] A second aspect of this disclosure also provides a vehicle including the muffler described above.

[0023] Through the above technical solution, the air guide channel with a small cross-sectional area is connected between the air intake chamber and the exhaust chamber, which are respectively connected to the outside. During the gas flow process, by continuously changing the cross-sectional area of ​​the muffler multiple times, the peak value of transmission loss can be effectively improved while ensuring the noise reduction effect. Moreover, under the same peak value of transmission loss, the muffler has a smaller expansion ratio than the traditional single-chamber muffler, thus having a smaller cross-sectional area in the direction of gas flow. This improves the noise reduction performance of the muffler in a limited space, which helps to make reasonable layout of the installation space and reduces the difficulty and requirements of the layout.

[0024] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0026] Figure 1 This is a perspective view of a muffler provided in an exemplary embodiment of this disclosure;

[0027] Figure 2 This is a front view of a muffler provided according to an exemplary embodiment of this disclosure;

[0028] Figure 3 This is a front view of a muffler provided in another exemplary embodiment of this disclosure;

[0029] Figure 4 yes Figure 3 A cross-sectional view along the AA direction;

[0030] Figure 5 yes Figure 3 A cross-sectional view along the BB direction;

[0031] Figure 6 yes Figure 3 A sectional view along the CC direction;

[0032] Figure 7 This is a side view of a muffler provided in an exemplary embodiment of this disclosure;

[0033] Figure 8 yes Figure 7 Cross-sectional view along the DD direction;

[0034] Figure 9 This is a comparative analysis diagram of the transmission loss between the muffler provided in the exemplary embodiments of this disclosure and a traditional single-expansion muffler;

[0035] Figure 10 This is a front view of a muffler provided in yet another exemplary embodiment of this disclosure.

[0036] Explanation of reference numerals in the attached figures

[0037] 1-Intake chamber; 11-First ventilation section; 12-First main cavity; 2-Air guide channel; 3-Exhaust chamber; 31-Second ventilation section; 32-Second main cavity; 4-Partition; 41-Horizontal part; 42-Vertical part; 51-Intake port; 52-Exhaust port; 6-Fixing component; 61-Mounting hole; 10-Housing shell; 101-Side wall. Detailed Implementation

[0038] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0039] In this disclosure, unless otherwise stated, directional terms such as "inner" and "outer" refer to the outline of the corresponding component itself; directional terms such as "horizontal," "vertical," "top," "bottom," "left," and "right" are defined based on the usage conventions of adding mufflers provided in this disclosure. Specifically, please refer to... Figure 1 In the diagrams shown, the Y direction indicates the horizontal direction, and the Z direction indicates the vertical direction. Furthermore, the side pointed to by the Z arrow is the top, and the opposite is the bottom; the side pointed to by the X arrow is the left, and the opposite is the right. Terms such as "first" and "second" used in this disclosure are for distinguishing one element from another and do not indicate sequence or importance. Additionally, in the following description, when referring to the accompanying drawings, the same reference numerals in different drawings denote the same or similar elements.

[0040] Reference Figures 1-10 This disclosure provides a muffler, which may include a housing 10, which may include an intake chamber 1, an exhaust chamber 3, and an air guide channel 2. In this disclosure, the X, Y, and Z directions are perpendicular to each other, and sound can be transmitted approximately along the X direction. The exhaust chamber 3 may be spaced apart on one side of the intake chamber 1, and the air guide channel 2 may connect the intake chamber 1 and the exhaust chamber 3. The intake chamber 1 is provided with an intake port 51 communicating with the outside to allow gas to enter the intake chamber 1 through the intake port 51. The exhaust chamber 3 may be provided with an exhaust port 52 communicating with the outside to discharge gas to the outside of the muffler through the exhaust port 52. Along the direction of gas flow, the cross-sectional dimension of the intake port 51 may be smaller than the cross-sectional dimension of the intake chamber 1, and the cross-sectional dimension of the exhaust port 52 may be smaller than the cross-sectional dimension of the exhaust chamber 3. This design not only avoids increasing the cross-sectional area of ​​the exhaust chamber 3 within the limited installation space, but also prevents friction between the housing 10 and other components around the muffler. This also allows the muffler to have a larger expansion ratio, effectively improving the peak value of transmission loss. In the embodiments provided in this disclosure, the difference between the cross-sectional areas of the air inlet 51 and the exhaust outlet 52 and the cross-sectional areas of the air inlet chamber 1 and the exhaust chamber 3 can be adaptively adjusted according to actual needs, and this disclosure does not limit this. The cross-sectional dimensions of the air guide channel 2 can be smaller than the cross-sectional dimensions of the air inlet chamber 1 and the exhaust chamber 3, achieving a noise reduction effect while avoiding occupying excessive installation space in the Z direction.

[0041] Through the above technical solution, the air guide channel 2 with a smaller cross-sectional area is connected between the air intake chamber 1 and the exhaust chamber 3, which are respectively connected to the outside. During the gas flow process, by continuously changing the cross-sectional area of ​​the muffler multiple times, the peak value of transmission loss can be effectively improved while ensuring the noise reduction effect. Moreover, the muffler has a smaller expansion ratio compared with the traditional single-chamber muffler under the same peak value of transmission loss, thus having a smaller cross-sectional area in the direction of gas flow. This improves the noise reduction performance of the muffler in a limited space, which helps to make reasonable layout of the installation space and reduces the difficulty and requirements of the layout.

[0042] To achieve the connection between the small cross-sectional area air guide channel 2 and the intake chamber 1 and exhaust chamber 3, which are respectively connected to the outside, there are several possible implementation methods, see [reference]. Figures 1-3 and Figure 10 As shown, specifically, in one embodiment, reference is made to... Figure 2 and Figure 3 The air guide channel 2 can extend along the X direction, and can be positioned along the Z direction on one side of the intake chamber 1 and exhaust chamber 3. The air guide channel 2 can be located at the top of the intake chamber 1 and exhaust chamber 3 and on the outside of them. Without affecting the sound processing effect of the intake chamber 1 and exhaust chamber 3, the length of the air guide channel 2 in the X direction is effectively increased, so that the sound transmission loss is greatly improved in the frequency band corresponding to the air guide channel 2, thereby effectively enhancing the muffler's noise reduction performance in that frequency band. Figure 3 As shown, in the embodiments provided in this disclosure, the extension length of the air guide channel 2 along the Z direction can be approximately equal to the sum of the extension lengths of the intake chamber 1 and the exhaust chamber 3 along the Z direction. This allows for an increase in the length of the air guide channel 2 within a limited installation space, improving noise reduction while avoiding excessive space occupation. Figure 9 As shown, Figure 9 Part a in the middle is a schematic diagram of the transmission loss of a traditional single expansion cavity. Figure 9 Part b is a schematic diagram of the transmission loss of a muffler provided in an exemplary embodiment of this disclosure. By comparison, it can be seen that the single-cycle frequency coverage range of the muffler provided in this disclosure is more than twice that of a traditional single-cavity expansion chamber muffler (meaning fewer troughs), and the peak transmission loss is 4.5 times that of a traditional single-cavity expansion chamber muffler, thereby improving the sound transmission loss curve and enhancing the muffler effect, while also eliminating the need to increase the cross-sectional area of ​​the muffler in the YZ direction. In another embodiment, referring to... Figure 10The air guide channel 2 can extend along the X-direction and be positioned between the intake chamber 1 and the exhaust chamber 3, reducing complex turns and bends and lowering the manufacturing difficulty of the muffler. Both ends of the air guide channel 2 can connect to the intake chamber 1 and the exhaust chamber 3 respectively, improving the overall performance of the muffler and enabling efficient use of space within a limited installation area. Simultaneously, it allows the gas flow direction between the intake chamber 1, the air guide channel 2, and the exhaust chamber 3 to be parallel to the X-direction, thereby reducing airflow resistance.

[0043] exist Figures 1-3 In the illustrated embodiment, the air guide channel 2 can have various connection relationships with the intake chamber 1 and the exhaust chamber 3. For example, in the first embodiment, the air guide channel 2 can be configured as follows: Figure 2 The hollow structure shown can effectively reduce the amount of material used, thereby reducing the overall weight of the muffler. Simultaneously, this hollow structure can also promote heat dissipation from the muffler surface, reducing the risk of damage due to overheating. It should be noted that in the embodiments provided in this disclosure, the hollow structure can be designed in different shapes and sizes as needed, so that the muffler can be applied to more application scenarios. The air intake chamber 1 may include a first main chamber 12 and a first venting section 11, the first venting section 11 being connected to the first main chamber 12. The exhaust chamber 3 may include a second main chamber 32 and a second venting section 31, the second venting section 31 being connected to the second main chamber 32. The first venting section 11 and the second venting section 31 can extend along the Z direction and be connected one-to-one to the two ends of the air guide channel 2. This design can effectively reduce the connection difficulty between the air intake chamber 1 and the air guide channel 2, as well as the connection difficulty between the exhaust chamber 3 and the air guide channel 2, and improve the overall performance of the muffler while achieving a reasonable layout of components within a limited space.

[0044] Of course, there can be various connection relationships between the air guide channel 2 and the air intake chamber 1 and the exhaust chamber 3. For example, in the second embodiment, the air guide channel 2 and the air intake chamber 1 and the exhaust chamber 3 can have the following relationships: Figure 1 and Figure 3The partition 4 shown may have a horizontal portion 41 extending along the X direction to the first venting section 11 and the second venting section 31. The two sides of the horizontal portion 41 along the X direction may be fixedly connected to the first venting section 11 and the second venting section 31 respectively, effectively improving the connection strength between the first venting section 11 and the second venting section 31. Furthermore, the horizontal portion 41 may be located along the Z direction between the air guide channel 2 and the air inlet chamber 1 and the exhaust chamber 3. The two sides of the horizontal portion 41 along the Z direction may be fixedly connected to the top surface of the air guide channel 2 and the first main cavity 12 and the second main cavity 32 respectively, thereby effectively improving the connection strength between the air guide channel 2 and the first main cavity 12 and the second main cavity 32. By providing the partition 4 with the horizontal portion 41, additional support can be provided for the muffler, enhancing its ability to withstand pressure and vibration during operation, reducing the risk of damage or deformation due to external impacts, extending the service life of the muffler, and reducing maintenance costs.

[0045] Furthermore, referring to Figure 1 , Figure 3 , Figure 4 as well as Figure 6 The partition 4 may also have a longitudinal portion 42, one end of which may extend to the transverse portion 41, and the other end of which extends in the Z direction away from the transverse portion 41, and the other end of which may be located in the X direction between the intake chamber 1 and the exhaust chamber 3. For example, as Figure 3 As shown, the first main cavity 12 can be located on the left side of the longitudinal section 42, the second main cavity 32 can be located on the right side of the longitudinal section 42, and the horizontal section 41 can be vertically connected to the top of the longitudinal section 42, thus allowing the partition 4 to be constructed as a T-shaped structure. This design allows the acoustic impedance of the muffler to change abruptly during sound transmission, ensuring the muffler's noise reduction effect. Simultaneously, this design also achieves a reasonable layout between the air intake chamber 1, the air guide channel 2, and the exhaust chamber 3, improving the overall effect of the muffler without occupying excessive installation space. Furthermore, by further adding the longitudinal section 42 on top of the horizontal section 41, the horizontal section 41 and the vertical section 42 can effectively disperse the external forces applied to the muffler, further improving the stability of the overall structure of the muffler, thereby extending its service life. It also further optimizes the gas flow path, thus improving the muffler's noise reduction effect. It should be noted that the size and shape of the partition 4 can be adjusted as needed to adapt the muffler to different application scenarios.

[0046] In the embodiments provided in this disclosure, reference is made to Figure 1 , Figure 3 as well as Figure 8Along the X direction, the length of the horizontal portion 41 can be less than the sum of the lengths of the first main cavity 12 and the second main cavity 32. Along the Z direction, the length of the vertical portion 42 can be less than the lengths of both the first main cavity 12 and the second main cavity 32. This avoids the first venting section 11 and the second venting section 31 occupying excessive installation space while ensuring good airflow within a relatively small space. In the embodiments provided in this disclosure, the lengths of the first main cavity 12 and the second main cavity 32 along the X and Z directions can be the same. Furthermore, in the X direction, the sum of the lengths of the horizontal portion 41, the first venting section 11, and the second venting section 31 can be equal to the sum of the lengths of the first main cavity 12 and the second main cavity 32. In the Z direction, the sum of the lengths of the vertical portion 42 and the first venting section 11, or the sum of the lengths of the vertical portion 42 and the second venting section 31, can be equal to the length of either the first main cavity 12 or the second main cavity 32. This makes the overall structure of the muffler more regular and effectively avoids installation and integration difficulties caused by size mismatches.

[0047] In the embodiments provided in this disclosure, when the muffler is a blow-molded part, the partition 4 can be constructed as a one-piece molded structure, such as... Figure 4 and Figure 5 As shown, the housing 10 may include two sidewalls 101 along the Y-axis. The partition 4 can be formed by pressing the two sidewalls 101 together along the Y-axis. This allows the muffler to better withstand internal pressure and external impact, improving durability, while also effectively reducing the number of connection points between different parts of the muffler, thereby reducing the risk of leakage and failure and improving the stability and reliability of the muffler during use. Furthermore, forming a monolithic structure through extrusion simplifies the production process, reduces manufacturing costs and time, and improves production efficiency.

[0048] Reference Figures 1-3The air inlet 51 and the exhaust outlet 52 can both be constructed as tubular structures protruding from the housing 10. Furthermore, the cross-sectional area of ​​the air inlet 51 in the YZ direction can be smaller than that of the air intake chamber 1, avoiding increasing the cross-sectional area of ​​the air intake chamber 1 within the limited installation space and preventing friction between the housing 10 and other components around the muffler. The exhaust outlet 52 can protrude from the housing 10, meaning the housing 10 and the exhaust outlet 52 can be integrally formed, ensuring the connection strength and overall performance between the air inlet / exhaust outlet 52 and the housing 10. The cross-sectional area of ​​the exhaust outlet 52 in the YZ direction is smaller than that of the exhaust chamber 3, avoiding increasing the cross-sectional area of ​​the exhaust chamber 3 within the limited installation space and preventing friction between the housing 10 and other components around the muffler. In addition, because the cross-sectional areas of the air inlet 51 and the exhaust outlet 52 differ significantly from those of the air intake chamber 1 and the exhaust chamber 3, the muffler has a larger expansion ratio, effectively improving the peak value of transmission loss. In the implementation provided in this disclosure, the difference between the cross-sectional area of ​​the air inlet 51 and the exhaust outlet 52 and the cross-sectional area of ​​the air inlet chamber 1 and the exhaust chamber 3 can be adaptively adjusted according to actual needs, and this disclosure does not limit this.

[0049] Reference Figure 1 , Figure 3 as well as Figure 6 The air intake 51 and exhaust 52 are symmetrically arranged along the X-direction on opposite sides of the intake chamber 1 and exhaust chamber 3, respectively. For example, the air intake 51 can be located on the left side of the intake chamber 1, and the exhaust 52 on the right side of the exhaust chamber 3. This symmetrical arrangement of the air intake 51 and exhaust 52 helps to balance the airflow distribution in the system, reducing airflow resistance and significantly reducing the difficulty and cost of molding the muffler. Furthermore, the separation of the air intake 51 and exhaust 52 allows for better utilization of the vehicle's interior space. It also makes it easier for the air intake 51 and exhaust 52 to interface with their respective corresponding devices without interference, greatly facilitating the connection and layout of the muffler with other devices.

[0050] Reference Figure 1 , Figure 3 as well as Figure 8The muffler may also include a fixing member 6, which protrudes from the outer side of the housing 10 for mounting the muffler in a preset position. When the housing 10 is integrally blow-molded, the characteristics of the blow molding process can be utilized to extrude the fixing member 6 from the parting line. This not only achieves integral molding of the fixing member 6 and the housing 10, but also effectively ensures the structural strength of the fixing member 6 and the housing 10, simplifies the assembly process, reduces costs, and guarantees the stability of the muffler installation. Furthermore, the fixing member 6 can be formed on the side of the housing 10 along the Z-direction, allowing the muffler to be fixedly mounted in the preset position by suspension, thereby reducing the installation requirements of the muffler and enabling a more rational layout within a limited space. Figure 5 As shown, the fastener 6 can be constructed as a sheet-like structure, which effectively optimizes the space utilization of the muffler while ensuring its installation stability. Further, referring to... Figure 8 Multiple fasteners 6 can be spaced out along the X direction to further improve the stability of the muffler when installed in the preset position.

[0051] Reference Figure 1 , Figure 3 as well as Figure 8 The fastener 6 may have a mounting hole 61, which can be used with an external fastener. The fastener can be a bolt or a pin, etc. This disclosure does not limit the fastener. By passing the fastener through the mounting hole 61 and inserting it into the preset installation position of the muffler, the muffler can be detachably installed while ensuring the installation stability of the muffler.

[0052] Reference Figures 1-8 In the embodiments provided in this disclosure, the muffler can be a blow-molded part. By using the blow molding process, the muffler can be constructed as an integral structure. In this way, not only can the air leakage problem caused by the joints of the muffler be effectively avoided, but also the need for splicing and welding is reduced, and the waste of materials and the difficulty of installation and molding are reduced.

[0053] A second aspect of this disclosure also provides a vehicle that may include the muffler described above and has all the beneficial effects of a muffler, which will not be repeated here. According to the embodiments provided in this disclosure, the muffler may, for example, be integrated into the vehicle's braking system. Specifically, when the muffler has the aforementioned air inlet 51 and exhaust outlet 52, the exhaust outlet 52 may be connected to the outlet of the air filter component of the vehicle's intake system to receive clean air filtered by the air filter component. The air inlet 51 may be connected to the intake end of an air compressor to introduce clean air into the air compressor. In this process, the muffler can effectively suppress noise, thereby greatly reducing noise generated by airflow and improving the vehicle's driving experience.

[0054] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0055] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0056] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A silencer, characterized in that, Includes a housing (10), the housing (10) includes an air intake chamber (1), an exhaust chamber (3) spaced apart on one side of the air intake chamber (1), and an air guide channel (2) connecting the air intake chamber (1) and the exhaust chamber (3). The air intake chamber (1) is provided with an air intake port (51) communicating with the outside, and the exhaust chamber (3) is provided with an exhaust port (52) communicating with the outside. Along the gas flow direction, the cross-sectional dimension of the air inlet (51) is smaller than the cross-sectional dimension of the air inlet chamber (1), the cross-sectional dimension of the exhaust port (52) is smaller than the cross-sectional dimension of the exhaust chamber (3), and the cross-sectional dimension of the air guide channel (2) is smaller than the cross-sectional dimensions of the air inlet chamber (1) and the exhaust chamber (3).

2. The silencer according to claim 1, characterized in that, The air guide channel (2) extends along the X direction and is located on one side of the air intake chamber (1) and the air exhaust chamber (3) along the Z direction. The intake chamber (1) includes a first main chamber (12) and a first ventilation section (11) communicating with the first main chamber (12). The exhaust chamber (3) includes a second main chamber (32) and a second ventilation section (31) communicating with the second main chamber (32). The first ventilation section (11) and the second ventilation section (31) extend along the Z direction and are respectively connected to both ends of the air guiding channel (2).

3. The silencer according to claim 2, characterized in that, The housing (10) has a partition (4) having a transverse portion (41) extending in the X direction to the first ventilation section (11) and the second ventilation section (31), and the transverse portion (41) being located in the Z direction between the air guide channel (2) and the air inlet chamber (1) and the exhaust chamber (3).

4. The silencer according to claim 3, characterized in that, The partition (4) also has a longitudinal section (42), one end of which extends to the transverse section (41), and the other end extends in the Z direction away from the transverse section (41) and is located in the X direction between the air intake chamber (1) and the exhaust chamber (3).

5. The silencer according to claim 1, characterized in that, The air inlet (51) is constructed as a tubular structure protruding from the housing (10); The exhaust port (52) is constructed as a tubular structure protruding from the housing (10).

6. The silencer according to claim 5, characterized in that, The air inlet (51) and the exhaust outlet (52) are symmetrically arranged along the X direction on the sides of the air inlet chamber (1) and the exhaust chamber (3) that are far apart from each other.

7. The silencer according to claim 1, characterized in that, The air guide channel (2) extends along the X direction and is located between the air intake chamber (1) and the exhaust chamber (3). The two ends of the air guide channel (2) are respectively connected to the air intake chamber (1) and the exhaust chamber (3).

8. The silencer according to claim 1, characterized in that, It also includes a fastener (6) which protrudes from the outside of the housing (10) for mounting the muffler in a preset position.

9. The silencer according to claim 1, characterized in that, The muffler is a blow-molded part.

10. A vehicle, characterized in that, Includes the muffler according to any one of claims 1-9.

Images