Silencer, engine and vehicle
By designing a detachable connected muffler housing and a perforated inner tube, combined with the limit structure, the tedious problems of noise testing and installation of the turbocharged engine are solved, and the effect of quickly changing the audio silencing band and reducing maintenance costs is achieved.
Patent Information
- Application Number
- CN202411772801.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-03-11
AI Technical Summary
The turbocharged engine generates large vibration radiation noise and gas flow noise when running at high speed, resulting in the need to configure a silencer. However, the noise frequencies of different engines and application scenarios are different, resulting in cumbersome testing and installation of the silencer.
A muffler is designed, with its shell removable connection, the inner tube has multiple perforations, and the axial, circumferential and radial limits are achieved through the limiting structure, which is convenient for splitting and replacement, and can quickly change the audio silence band for testing.
The audio silence band of the silencer is realized quickly, simplifying the testing process, making it easy to find the best solution for engine silence, and quickly replacing damaged parts during use, reducing maintenance costs.
Smart Images
Figure CN119593913A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of engine silencer, and in particular to a silencer, an engine and a vehicle. Background Art
[0002] Compared with naturally aspirated engines, turbocharged engines use exhaust gas from the engine to drive the turbocharger, thereby increasing the engine's air intake and improving the engine's power and torque output. This working mode causes the engine to generate large vibration radiation noise and gas flow noise when running at high speed. Moreover, since the turbocharger needs to compress air when working, it will also generate large mechanical vibration radiation noise and gas flow noise. Therefore, turbocharged engines generally need to be equipped with mufflers to reduce noise. However, since different models of turbocharged engines and the same type of turbocharged engines in different application scenarios generally generate different noise frequencies, when configuring a muffler for a turbocharged engine, it is often necessary to test multiple muffler solutions and select the best one. During the test, the muffler needs to be removed and installed on the turbocharged engine as a whole many times, which is time-consuming, labor-intensive, and inconvenient to operate. Summary of the invention
[0003] In view of this, the embodiments of the present disclosure provide a muffler, an engine and a vehicle, which can conveniently change the muffler band, thereby testing mufflers with different muffler bands and conveniently finding the best solution for engine muffler. The technical solution is as follows:
[0004] In a first aspect, a muffler is provided, the muffler comprising an outer shell and an inner tube;
[0005] The housing comprises a first housing, a second housing and a fixing member, wherein the first housing and the second housing are detachably connected together through the fixing member to form a muffler cavity, and the first housing has a first air inlet end and a first air outlet end, wherein the first air inlet end is used to be connected to the second air outlet end of the turbocharger, and the first air outlet end is used to be connected to the second air inlet end of the engine body;
[0006] The inner tube is placed in the silencer cavity, the tube wall of the inner tube has a plurality of perforations, the inner tube has a third air inlet end and a third air outlet end, the third air inlet end is connected with the first air inlet end, and the third air outlet end is connected with the first air outlet end, so that the gas flowing in from the first air inlet end passes through the third air inlet end and the third air outlet end in sequence and flows out from the first air outlet end.
[0007] In a possible implementation, the first shell has a first limiting structure and / or the second shell has a second limiting structure, the inner tube has a third limiting structure, and axial limiting, circumferential limiting and radial limiting are achieved between the inner tube and the first shell and the second shell through the cooperation between the first limiting structure and / or the second limiting structure and the third limiting structure.
[0008] In a possible implementation, the first shell has a first limiting structure and the second shell has a second limiting structure, the first limiting structure includes two first limiting members spaced apart on the inner wall of the first shell, the second limiting structure includes two second limiting members spaced apart on the inner wall of the second shell, the third limiting structure includes a first part whose two sides are respectively abutted against the side of the two first limiting members facing each other or away from each other and a second part whose two sides are respectively abutted against the side of the two second limiting members facing each other or away from each other, and the first part and the second part are respectively abutted against the inner walls of the first shell and the second shell and / or the first limiting member and the second limiting member are abutted against the outer wall of the inner tube.
[0009] In a possible implementation, the first part and the second part both include a semi-annular partition, and the semi-annular partition of the first part and the semi-annular partition of the second part are combined to form a first annular partition that is set outside the inner tube, and the first annular partition is abutted against the side of the two first limiting members facing each other and against the side of the two second limiting members facing each other, so as to separate the space located in the silencing cavity and outside the inner tube through the first annular partition.
[0010] In a possible implementation, the first part and the second part each include two semi-annular partitions that are spaced apart, and the semi-annular partitions of the first part and the second part correspond to each other one by one, and the corresponding semi-annular partitions are combined to form a first annular partition that is set outside the inner tube, and the two first annular partitions are respectively abutted against the sides of the two first limiting members that face each other or are away from each other and against the sides of the two second limiting members that face each other or are away from each other, so that the space located in the silencing cavity and outside the inner tube is divided into three parts by the two first annular partitions.
[0011] In a possible implementation, the silencer also includes a second annular partition mounted outside the inner tube, and the shape of the second annular partition is adapted to the space located in the silencer cavity but outside the inner tube, so that the space located in the silencer cavity but outside the inner tube is separated by the second annular partition.
[0012] In a possible implementation manner, the inner tube is connected to the second shell.
[0013] In a possible implementation, the first shell further has a bracket, the bracket has a positioning groove with a rubber soft sleeve embedded inside, and the positioning groove is mounted on the engine body through the rubber soft sleeve.
[0014] In a second aspect, an engine is provided, comprising an engine body, a turbocharger and a muffler as described in any one of the first aspects, wherein the muffler is connected between an outlet end of the turbocharger and an inlet end of the engine body.
[0015] In a third aspect, a vehicle is provided, comprising the engine as described in the second aspect.
[0016] In the scheme shown in the present disclosure, the outer shell includes a first shell and a second shell for enclosing a silencer cavity and a fixing member for realizing a detachable connection between the first shell and the second shell, and an inner tube with a perforation is arranged in the silencer cavity, so that the first shell, the second shell and the inner tube can be conveniently disassembled and replaced, and since the first air inlet end connected to the second air outlet end of the turbocharger and the first air outlet end connected to the second air inlet end of the engine body are both located on the first shell, therefore, after completing a muffler test, it is only necessary to remove the second shell and the inner tube from the first shell and replace a different inner tube to change the muffler band, and test the mufflers with different muffler bands, so as to conveniently find the best solution for engine muffler. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0018] Figure 1 is a structural schematic diagram of a muffler provided by an embodiment of the present disclosure;
[0019] Figure 2 is a schematic diagram of the cross-sectional structure of a first type of housing provided by an embodiment of the present disclosure;
[0020] Figure 3 is a schematic diagram of the cross-sectional structure of a second housing provided by an embodiment of the present disclosure;
[0021] Figure 4 is a structural schematic diagram of an inner tube provided by an embodiment of the present disclosure;
[0022] Figure 5 It is a schematic diagram of a first cross-sectional structure of a first outer shell and an inner tube provided by an embodiment of the present disclosure;
[0023] Figure 6 It is a schematic diagram of a second cross-sectional structure of the first outer shell and inner tube provided by an embodiment of the present disclosure;
[0024] Figure 7 is a schematic diagram of a second cross-sectional structure of a second outer shell and an inner tube provided by an embodiment of the present disclosure;
[0025] Figure 8 It is a schematic diagram of a second cross-sectional structure of a third type of outer shell and inner tube matching provided by an embodiment of the present disclosure;
[0026] Fig. 9 It is a schematic diagram of a first cross-sectional structure of a second outer shell and an inner tube provided by an embodiment of the present disclosure;
[0027] Fig.10 It is a schematic diagram of a first cross-sectional structure of a third type of outer shell and inner tube matching provided by an embodiment of the present disclosure;
[0028] Fig.11 is a schematic diagram of a first cross-sectional structure of a fourth type of outer shell and inner tube matching provided by an embodiment of the present disclosure;
[0029] Fig.12 It is a schematic diagram of a first cross-sectional structure of a fifth type of outer shell and inner tube matching provided by an embodiment of the present disclosure;
[0030] Fig.13 is a schematic diagram of a first cross-sectional structure of a sixth type of outer shell and inner tube matching provided by an embodiment of the present disclosure;
[0031] Fig.14 is a schematic cross-sectional structure diagram of a first shell body connected to an inner tube provided by an embodiment of the present disclosure;
[0032] Fig.15 It is a schematic structural diagram of a rubber soft sleeve provided in an embodiment of the present disclosure.
[0033] Description of Reference Numerals
[0034] 1. Shell; 11. First shell; 111. First air inlet; 112. First air outlet; 113. First stopper; 12. Second shell; 123. Second stopper; 13. Fixing member; 14. Silence chamber; 15. Bracket; 151. Positioning groove; 152. Rubber sleeve; 1521. Annular groove; 153. Annular nesting; 2. Inner tube; 21. Third air inlet; 22. Third air outlet; 23. Third stopper; 231. First part; 232. Second part; 24. Perforation; 3. Second annular partition. DETAILED DESCRIPTION
[0035] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.
[0036] This embodiment relates to a muffler, referring to Figure 1 The figure shows a schematic structural diagram of a silencer, which includes an outer shell 1 and an inner tube 2.
[0037] refer to Figure 2 The first cross-sectional structure diagram of the housing 1 is shown in FIG. Figure 3 The figure shows a second cross-sectional structure diagram of the housing 1, wherein the housing 1 comprises a first shell 11, a second shell 12 and a fixing member 13, wherein the first shell 11 and the second shell 12 are detachably connected together via the fixing member 13 to form a silencer cavity 14, wherein the first shell 11 has a first air inlet end 111 and a first air outlet end 112, wherein the first air inlet end 111 is used to be connected to the second air outlet end of the turbocharger, and the first air outlet end 112 is used to be connected to the second air inlet end of the engine body.
[0038] For example, refer to Figure 2 As shown, the fixing member 13 can be two pairs of clips and slots that match each other and are respectively arranged at corresponding positions of the first shell 11 and the second shell 12, and the two pairs of clips and slots are respectively arranged on the opposite sides of the first shell 11 and the second shell 12, so that the first shell 11 and the second shell 12 can be detachably fixedly connected through the two pairs of clips and slots.
[0039] For example, refer to Figure 3 As shown, the fixing member 13 can be a plurality of rod-shaped connecting members, and the first shell 11 and the second shell 12 have corresponding mounting holes on opposite sides, and the rod-shaped connecting members can pass through the mounting holes of the first shell 11 and the mounting holes of the second shell 12, so that the opposite sides of the first shell 11 are fixedly connected to the opposite sides of the second shell 12 through the plurality of rod-shaped connecting members.
[0040] In one example, the fixing member 13 may be a plurality of bolts. For example, the nut at the first end of the bolt abuts against the first housing 11, the second end of the bolt passes through the mounting hole of the first housing 11 and the mounting hole of the second housing 12 in sequence, and the nut is screwed on the second end of the bolt and abuts against the second housing 12. Thus, the second housing 12 is fixed to the first housing 11 by the bolt and the nut.
[0041] In another example, the fixing member 13 may be a plurality of pins, wherein the first end of the pin has a pin cap that abuts against the first shell 11 , and the second end of the pin passes through the mounting hole of the first shell 11 and the mounting hole of the second shell 12 in sequence and is riveted to the second shell 12 .
[0042] In another example, the fixing member 13 may be a plurality of screws, wherein the first end of the screw has a screw cap that abuts against the first shell 11, and the second end of the screw passes through the mounting hole of the first shell 11 and the mounting hole of the second shell 12 in sequence and is screwed into the mounting hole of the second shell 12, wherein the mounting hole of the second shell 12 is a screw hole.
[0043] In another example, the fixing member 13 may include one of a screw, a pin or a bolt, or may include two of the screws, pins or bolts, or may include three of the screws, pins or bolts.
[0044] refer to Figure 4 The figure is a schematic diagram of the structure of the inner tube 2 . The inner tube 2 is arranged in the muffler cavity 14 . The tube wall of the inner tube 2 has a plurality of through holes 24 . The inner tube 2 has a third air inlet end 21 and a third air outlet end 22 .
[0045] The perforations 24 may be square holes or Figure 4 The hole shown is a circular hole, but it can also be a rectangular hole. The shape of the through hole 24 is not illustrated in the embodiment of the disclosure.
[0046] Furthermore, the plurality of perforations 24 may be evenly or unevenly distributed on the wall of the inner tube 2. The distribution of the plurality of perforations 24 on the wall of the inner tube 2 is determined according to the frequency range of the sound to be eliminated by the muffler, which is not illustrated in the embodiment of the present disclosure.
[0047] refer to Figure 5 The third air inlet 21 is connected to the first air inlet 111, and the third air outlet 22 is connected to the first air outlet 112, so that the gas flowing in from the first air inlet 111 passes through the third air inlet 21 and the third air outlet 22 in sequence and flows out from the first air outlet 112.
[0048] When the turbocharged airflow passes through the muffler, sound waves of different frequencies are radiated to the space inside the muffler cavity 14 and outside the inner tube 2. Due to the sudden change in acoustic impedance, part of the sound waves will be reflected back to the sound source. At the same time, under the action of the sound waves, the air column in the muffler vibrates. During the vibration, friction damping causes part of the sound energy to be converted into heat energy and dissipated. Only a small amount of sound energy is radiated, thereby achieving the sound wave noise reduction function.
[0049] From the above, it can be seen that the outer shell 1 includes a first shell 11 and a second shell 12 for enclosing a silencer cavity 14 and a fixing member 13 for realizing a detachable connection between the first shell 11 and the second shell 12, and an inner tube 2 with a perforation 24 is arranged in the silencer cavity 14, so that the first shell 11, the second shell 12 and the inner tube 2 can be easily disassembled and replaced.
[0050] Since the first air inlet end 111 connected to the second air outlet end of the turbocharger and the first air outlet end 112 connected to the second air inlet end of the engine body are both located on the first housing 11, after completing a test of the muffler, it is only necessary to remove the second housing 12 and the inner tube 2 from the first housing 11 and replace a different inner tube 2 to change the muffler sound band of the muffler, and test the mufflers with different muffler sound bands, so as to conveniently find the best solution suitable for engine muffler.
[0051] At the same time, after the muffler is put into formal use in a vehicle, when the muffler inner tube 2 or the second shell 12 is damaged, the muffler inner tube 2 or the second shell 12 can be replaced quickly and at low cost.
[0052] In one example, the first shell 11 has a first limiting structure and / or the second shell 12 has a second limiting structure, the inner tube 2 has a third limiting structure 23, and the inner tube 2 and the first shell 11 and the second shell 12 are axially limited, circumferentially limited, and radially limited by the first limiting structure and / or the cooperation between the second limiting structure and the third limiting structure 23. In this way, the stability of the inner tube 2 in the silencer cavity 14 of the outer shell 1 can be ensured, and the inner tube 2 can be prevented from loosening or deflecting during testing or use, which may cause problems in the test results or damage to the silencer during use.
[0053] In one example, the first shell 11 has a first limiting structure and the second shell 12 has a second limiting structure. The first limiting structure includes two first limiting members 113 spaced apart on the inner wall of the first shell 11, the second limiting structure includes two second limiting members 123 spaced apart on the inner wall of the second shell 12, and the third limiting structure 23 includes a first portion 231 whose two sides respectively abut against the sides of the two first limiting members 113 facing each other or away from each other and a second portion 232 whose two sides respectively abut against the sides of the two second limiting members 123 facing each other or away from each other. The first portion 231 and the second portion 232 respectively abut against the inner walls of the first shell 11 and the second shell 12 and / or the first limiting member 113 and the second limiting member 123 abut against the outer wall of the inner tube 2.
[0054] The shapes of the first stopper 113 and the second stopper 123 may be the same, for example Figure 6 The second cross-sectional structure diagram of the first outer shell 1 and the inner tube 2 is shown in FIG. Figure 8 The figure shows a second cross-sectional structure diagram of the third type of outer shell 1 and inner tube 2. The first stopper 113 and the second stopper 123 can both be semi-circular. The shapes of the first stopper 113 and the second stopper 123 can also be different, for example Figure 7As shown, the first limiting member 113 may be two irregular square-like blocks, and the second limiting member 123 may be one irregular square-like block.
[0055] Furthermore, the shapes of the first portion 231 and the second portion 232 may be the same, for example Figure 6 and Figure 7 In the second cross-sectional structure diagram of the second type of outer shell 1 and inner tube 2, the shapes of the first part 231 and the second part 232 can both be semi-circular. The shapes of the first part 231 and the second part 232 can also be different, for example Figure 8 As shown, the first portion 231 may be a larger irregular square-like block, and the second portion 232 may be a smaller irregular square-like block.
[0056] As described above, since the first shell 11 and the second shell 12 are positioned relative to each other, by setting two first limiting members 113 of the first shell 11 and two second limiting members 123 at the positions of the second shell 12, and making the two sides of the first part 231 of the third limiting structure 23 respectively abut against the sides of the two second limiting members 123 facing each other or away from each other, and the two sides of the second part 232 respectively abut against the sides of the two second limiting members 123 facing each other or away from each other, the opposite sides of the inner tube 2 can be limited at the same time, thereby realizing the axial limitation of the inner tube 2 in the silencer cavity 14.
[0057] Furthermore, by the first part 231 and the second part 232 respectively abutting against the inner walls of the first shell 11 and the second shell 12 and / or the first limit member 113 and the second limit member 123 abutting against the outer wall of the inner tube 2, the circumferential and radial limiting of the inner tube 2 in the silencer cavity 14 can be achieved.
[0058] At the same time, the inner tube 2 can be stably placed in the muffler cavity 14 by only inserting the corresponding abutting first part 231 and the two first stoppers 113, and the second part 232 and the two second stoppers 123 into place, and when disassembling, it is only necessary to pull out the second shell 12 and the inner tube 2 from the first shell 11 respectively. Therefore, the second shell 12 and the inner tube 2 can be easily installed and disassembled from the first shell 11.
[0059] In one example, reference Fig. 9The first cross-sectional structure diagram of the second type of outer shell 1 and inner tube 2 is shown. The first part 231 includes two parts arranged at intervals, and the two parts of the first part 231 are located between the two first stoppers 113, so that the two sides of the first part 231 are respectively against the sides of the two first stoppers 113 facing each other. The second part 232 includes two parts arranged at intervals, and the two parts of the second part 232 are located between the two second stoppers 123, so that the two sides of the second part 232 are respectively against the sides of the two second stoppers 123 facing each other. Therefore, the axial limit of the inner tube 2 in the muffler cavity 14 can be achieved.
[0060] In one example, reference Fig.10 The first cross-sectional structure schematic diagram of the third type of outer shell 1 and inner tube 2 is shown. The first part 231 includes two parts arranged at intervals, and the two parts of the first part 231 are located between the two first stoppers 113, so that the two sides of the first part 231 are respectively against the sides of the two first stoppers 113 facing each other. The second part 232 includes a part, and a part of the second part 232 is located between the two second stoppers 123, so that the two sides of the second part 232 are respectively against the sides of the two second stoppers 123 facing each other. Therefore, the axial limitation of the inner tube 2 in the muffler cavity 14 can be achieved.
[0061] In one example, referring to Fig.11 The fourth embodiment shows a schematic diagram of the first cross-sectional structure of the outer shell 1 and the inner tube 2. The first part 231 includes two parts arranged at intervals, and the two parts of the first part 231 are located between the two first stoppers 113, so that the two sides of the first part 231 are respectively against the sides of the two first stoppers 113 facing each other. The second part 232 includes a part, and a part of the second part 232 is located between the two second stoppers 123, so that the two sides of the second part 232 are respectively against the sides of the two second stoppers 123 facing each other. Thus, the axial limit of the inner tube 2 in the muffler cavity 14 can be achieved.
[0062] In one example, reference Fig.12 The figure shows a schematic diagram of the first cross-sectional structure of the fifth type of outer shell 1 and inner tube 2, wherein the first part 231 and the second part 232 respectively include a part. A part of the first part 231 is located between the two first stoppers 113, so that the two sides of the first part 231 respectively abut against the sides of the two first stoppers 113 facing each other. A part of the second part 232 is located between the two second stoppers 123, so that the two sides of the second part 232 respectively abut against the sides of the two second stoppers 123 facing each other. Thus, the axial limit of the inner tube 2 in the muffler cavity 14 can be achieved.
[0063] In one example, the cross-sectional shape of the silencer cavity 14 in the housing 1 is non-circular. For example, the cross-sectional shape of the silencer cavity 14 can be rectangular, square, elliptical, or other shapes. Figure 6 The square-like shape shown. Figure 6 and Figure 8 As shown, the first portion 231 and the second portion 232 respectively abut against the inner walls of the first shell 11 and the second shell 12, while the first stopper 113 and the second stopper 123 do not abut against the outer wall of the inner tube 2. In this way, the circumferential and radial limits of the inner tube 2 in the muffler cavity 14 can be achieved.
[0064] In one example, reference Figure 7 As shown, the first part 231 and the second part 232 respectively abut against the inner walls of the first shell 11 and the second shell 12, and the first stopper 113 and the second stopper 123 abut against the outer wall of the inner tube 2. In this way, the circumferential and radial limits of the inner tube 2 in the muffler cavity 14 can be achieved.
[0065] In one example, reference Fig.12 As shown, the first part 231 and the second part 232 both include a semi-annular partition, and the semi-annular partition of the first part 231 and the semi-annular partition of the second part 232 are combined to form a first annular partition that is set outside the inner tube 2, and the first annular partition is abutted against the sides of the two first limiting members 113 facing each other and against the sides of the two second limiting members 123 facing each other, so as to separate the space located in the silencer cavity 14 and outside the inner tube 2 through the first annular partition.
[0066] In this way, the first annular partition on the inner tube 2 can be limited by the first limiting member 113 and the second limiting member 123, so as to limit the inner tube 2 axially, circumferentially and radially. At the same time, the first annular partition as the third limiting structure 23 can also divide the space inside the silencer cavity 14 but outside the inner tube 2 into two silencer chambers, thereby increasing the number of silencer chambers. By changing the size of the two silencer chambers and the corresponding number of perforations 24, the selection of the silencer frequency band can be increased, thereby being able to eliminate noise in a wider frequency band.
[0067] In one example, reference Figure 4 and Figure 5As shown, the first part 231 and the second part 232 each include two semi-annular partitions arranged at intervals, and the semi-annular partitions of the first part 231 and the second part 232 correspond to each other, and the semi-annular partitions corresponding to each other are combined to form a first annular partition set outside the inner tube 2. The two first annular partitions are respectively abutted against the sides of the two first stoppers 113 facing each other or away from each other, and against the sides of the two second stoppers 123 facing each other or away from each other, so that the space located in the muffler cavity 14 and outside the inner tube 2 is divided into three parts by the two first annular partitions.
[0068] In this way, the first annular partition on the inner tube 2 can be limited by the first limiting member 113 and the second limiting member 123, so as to limit the inner tube 2 axially, circumferentially and radially. At the same time, the two first annular partitions serving as the third limiting structure 23 can also divide the space inside the silencer cavity 14 but outside the inner tube 2 into three silencer chambers, thereby further increasing the number of silencer chambers. By changing the sizes of the three silencer chambers and the corresponding number of perforations 24, the selection of the silencer frequency band can be further increased, thereby being able to eliminate noise in a wider frequency band.
[0069] In one example, reference Fig.13 The sixth schematic diagram of the first cross-sectional structure of the outer shell and the inner tube shown in the figure, the muffler also includes a second annular partition 3 mounted on the outside of the inner tube 2, and the shape of the second annular partition 3 is adapted to the space located in the muffler cavity 14 but outside the inner tube 2, so that the space located in the muffler cavity 14 but outside the inner tube 2 is separated by the second annular partition 3.
[0070] In this way, the space inside the silencer cavity 14 but outside the inner tube 2 can be divided into more silencer chambers, further increasing the number of silencer chambers. By changing the number and spacing of the second annular partitions 3 on the inner tube 2, the number and size of the silencer chambers can be changed. By adjusting the number of corresponding perforations 24, the selection of the silencer audio frequency band can be further increased, thereby being able to eliminate noise in a wider frequency band.
[0071] Among them, the second annular partition 3 is fixedly connected to the inner tube 2, and the second annular partition 3 and the inner tube 2 can be integrally formed, or the second annular partition 3 and the inner tube 2 can be two separate structural parts, which can be detachably connected by snapping or bolting, or can be non-detachably connected by gluing.
[0072] In one example, reference Fig.14The cross-sectional structure diagram of the first shell 11 connected to the inner tube 2 is shown, and the inner tube 2 is connected to the second shell 12. For example, the inner tube 2 and the second shell 12 can be integrally formed, or can be two separate structural parts, and can be detachably connected by snapping or bolting, or can be non-detachably connected by gluing. In this way, the inner tube 2 can be removed together with the second shell 12.
[0073] In one example, the first housing 11 further has a bracket 15, such as Figure 1 As shown, the bracket 15 can be connected to the outer wall of the first shell 11, wherein the bracket 15 and the first shell 11 can be integrally formed, or can be two independent structural parts fixed together by screws or clamping.
[0074] Continue to refer Figure 1 As shown, the bracket 15 has a positioning groove 151 with a rubber soft cover 152 embedded therein, and the positioning groove 151 is mounted on the engine body through the rubber soft cover 152. In this way, the rubber soft cover 152 plays a role of vibration resistance and vibration isolation, thereby reducing the vibration transmitted from the engine body to the housing 1, thereby reducing vibration excitation, and further reducing mechanical vibration noise.
[0075] In one example, one side of the positioning groove 151 has a notch, and the outer wall of the rubber soft cover 152 has an annular groove 1521. The positioning groove 151 is nested in the annular groove 1521 of the rubber soft cover 152 through the notch, so that the muffler is conveniently installed on the engine body. At the same time, in order to ensure reliable positioning, the outer diameter of the annular groove 1521 is larger than the inner diameter of the positioning groove 151, so that after the rubber soft cover 152 is assembled in the positioning groove 151, axial and radial positioning can be achieved to prevent the rubber soft cover 152 from falling off.
[0076] In one example, the inner side of the rubber soft cover 152 has an annular nesting 153 for supporting the rubber soft cover 152, and the rubber soft cover 152 is sleeved on the engine body through the annular nesting 153. In this way, the annular nesting 153 supports the inner side of the rubber soft cover 152 to prevent the rubber soft cover 152 from being damaged by pressure.
[0077] In the embodiment of the present disclosure, the outer shell 1 includes a first shell 11 and a second shell 12 for enclosing a silencer cavity 14 and a fixing member 13 for realizing a detachable connection between the first shell 11 and the second shell 12, and an inner tube 2 having a through hole 24 is arranged in the silencer cavity 14, so that the first shell 11, the second shell 12 and the inner tube 2 can be easily disassembled and replaced.
[0078] Since the first air inlet end 111 connected to the second air outlet end of the turbocharger and the first air outlet end 112 connected to the second air inlet end of the engine body are both located on the first housing 11, after completing a test of the muffler, it is only necessary to remove the second housing 12 and the inner tube 2 from the first housing 11 and replace a different inner tube 2 to change the muffler sound band of the muffler, and test the mufflers with different muffler sound bands, so as to conveniently find the best solution suitable for engine muffler.
[0079] At the same time, after the muffler is put into formal use in a vehicle, when the muffler inner tube 2 or the second shell 12 is damaged, the muffler inner tube 2 or the second shell 12 can be replaced quickly and at low cost.
[0080] An embodiment of the present disclosure also provides an engine, which includes an engine body, a turbocharger and a muffler as described above, wherein the muffler is connected between an outlet end of the turbocharger and an inlet end of the engine body.
[0081] In the embodiment of the present disclosure, the outer shell 1 includes a first shell 11 and a second shell 12 for enclosing a silencer cavity 14 and a fixing member 13 for realizing a detachable connection between the first shell 11 and the second shell 12, and an inner tube 2 having a through hole 24 is arranged in the silencer cavity 14, so that the first shell 11, the second shell 12 and the inner tube 2 can be easily disassembled and replaced.
[0082] Since the first air inlet end 111 connected to the second air outlet end of the turbocharger and the first air outlet end 112 connected to the second air inlet end of the engine body are both located on the first housing 11, after completing a test of the muffler, it is only necessary to remove the second housing 12 and the inner tube 2 from the first housing 11 and replace a different inner tube 2 to change the muffler sound band of the muffler, and test the mufflers with different muffler sound bands, so as to conveniently find the best solution suitable for engine muffler.
[0083] At the same time, after the muffler is put into formal use in a vehicle, when the muffler inner tube 2 or the second shell 12 is damaged, the muffler inner tube 2 or the second shell 12 can be replaced quickly and at low cost.
[0084] The disclosed embodiment also provides a vehicle, which includes the engine as described above.
[0085] In the embodiment of the present disclosure, the outer shell 1 includes a first shell 11 and a second shell 12 for enclosing a silencer cavity 14 and a fixing member 13 for realizing a detachable connection between the first shell 11 and the second shell 12, and an inner tube 2 having a through hole 24 is arranged in the silencer cavity 14, so that the first shell 11, the second shell 12 and the inner tube 2 can be easily disassembled and replaced.
[0086] Since the first air inlet end 111 connected to the second air outlet end of the turbocharger and the first air outlet end 112 connected to the second air inlet end of the engine body are both located on the first housing 11, after completing a test of the muffler, it is only necessary to remove the second housing 12 and the inner tube 2 from the first housing 11 and replace a different inner tube 2 to change the muffler sound band of the muffler, and test the mufflers with different muffler sound bands, so as to conveniently find the best solution suitable for engine muffler.
[0087] At the same time, after the muffler is put into formal use in a vehicle, when the muffler inner tube 2 or the second shell 12 is damaged, the muffler inner tube 2 or the second shell 12 can be replaced quickly and at low cost.
[0088] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present disclosure can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character "" generally indicates that the objects associated with each other are in an "or" relationship.
[0089] The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.
Claims
1. A muffler, characterized in that: The muffler comprises an outer shell (1) and an inner tube (2); The housing (1) comprises a first shell (11), a second shell (12) and a fixing member (13); the first shell (11) and the second shell (12) are detachably connected together via the fixing member (13) to form a silencer cavity (14); the first shell (11) has a first air inlet end (111) and a first air outlet end (112); the first air inlet end (111) is used to be connected to the second air outlet end of the turbocharger, and the first air outlet end (112) is used to be connected to the second air inlet end of the engine body; The inner tube (2) is arranged in the muffler cavity (14); the tube wall of the inner tube (2) has a plurality of perforations (24); the inner tube (2) has a third air inlet end (21) and a third air outlet end (22); the third air inlet end (21) is connected to the first air inlet end (111); the third air outlet end (22) is connected to the first air outlet end (112), so that the gas flowing in from the first air inlet end (111) passes through the third air inlet end (21) and the third air outlet end (22) in sequence and flows out from the first air outlet end (112).
2. The muffler according to claim 1, characterized in that: The first shell (11) has a first limiting structure and / or the second shell (12) has a second limiting structure, the inner tube (2) has a third limiting structure (23), and the inner tube (2) and the first shell (11) and the second shell (12) achieve axial limiting, circumferential limiting and radial limiting through the cooperation between the first limiting structure and / or the second limiting structure and the third limiting structure (23).
3. The muffler according to claim 2, characterized in that: The first shell (11) has a first limiting structure and the second shell (12) has a second limiting structure, the first limiting structure comprises two first limiting members (113) arranged at intervals on the inner wall of the first shell (11), the second limiting structure comprises two second limiting members (123) arranged at intervals on the inner wall of the second shell (12), the third limiting structure (23) comprises a first part (231) whose two sides respectively abut against the sides of the two first limiting members (113) facing each other or away from each other, and a second part (232) whose two sides respectively abut against the sides of the two second limiting members (123) facing each other or away from each other, and the first part (231) and the second part (232) respectively abut against the inner walls of the first shell (11) and the second shell (12), and / or the first limiting member (113) and the second limiting member (123) abut against the outer wall of the inner tube (2).
4. The muffler according to claim 3, characterized in that: The first part (231) and the second part (232) both include a semi-annular partition, and the semi-annular partition of the first part (231) and the semi-annular partition of the second part (232) are combined to form a first annular partition that is set outside the inner tube (2), and the first annular partition abuts against the sides of the two first limiting members (113) facing each other and abuts against the sides of the two second limiting members (123) facing each other, so as to separate the space located in the silencer cavity (14) and outside the inner tube (2) through the first annular partition.
5. The muffler according to claim 3, characterized in that: The first part (231) and the second part (232) each include two semi-annular partitions that are spaced apart from each other, and the semi-annular partitions of the first part (231) and the second part (232) correspond to each other one by one, and the semi-annular partitions that correspond to each other are combined to form a first annular partition that is set outside the inner tube (2), and the two first annular partitions are respectively abutted against the sides of the two first limiting members (113) that face each other or are away from each other, and are abutted against the sides of the two second limiting members (123) that face each other or are away from each other, so that the space located in the muffler cavity (14) and outside the inner tube (2) is divided into three parts by the two first annular partitions.
6. The muffler according to claim 3, characterized in that: The silencer further comprises a second annular partition (3) sleeved on the outside of the inner tube (2), the shape of the second annular partition (3) being adapted to a space located within the silencer cavity (14) but outside the inner tube (2), so that the space located within the silencer cavity (14) but outside the inner tube (2) is separated by the second annular partition (3).
7. The muffler according to claim 1, characterized in that: The inner tube (2) is connected to the second shell (12).
8. The muffler according to claim 1, characterized in that: The first housing (11) further comprises a bracket (15), wherein the bracket (15) comprises a positioning groove (151) in which a rubber soft sleeve (152) is embedded, and the positioning groove (151) is sleeved on the engine body through the rubber soft sleeve (152).
9. An engine, characterized in that: The engine comprises an engine body, a turbocharger and a muffler as claimed in any one of claims 1 to 8, wherein the muffler is connected between an air outlet end of the turbocharger and an air inlet end of the engine body.
10. A vehicle, characterized in that: The vehicle includes the engine of claim 9.