CN212690160U - Dual mode muffler for an exhaust system - Google Patents
Dual mode muffler for an exhaust system Download PDFInfo
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- CN212690160U CN212690160U CN202021691475.7U CN202021691475U CN212690160U CN 212690160 U CN212690160 U CN 212690160U CN 202021691475 U CN202021691475 U CN 202021691475U CN 212690160 U CN212690160 U CN 212690160U
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Abstract
The utility model discloses a dual-mode silencer of an exhaust system, which comprises a shell, wherein one end of the shell is provided with a front end cover, the other end of the shell is provided with a rear end cover, an air inlet is arranged on the front end cover, a first air outlet pipe and a second air outlet pipe are arranged on the wall surface of the shell in a penetrating way, and the first air outlet pipe and the second air outlet pipe are communicated with the air inlet; and a switching device is arranged on the second air outlet pipe and is communicated with a vehicle-mounted button, and the vehicle-mounted button controls the switching device to be opened or closed so as to realize the switching between the first running mode and the second running mode. The utility model discloses a set up first outlet duct and second outlet duct and form double mode silencer, simple structure sets up auto-change over device on the second outlet duct, can realize the switching of first operational mode and second operational mode through the vehicle-mounted button, and the mode switch procedure is simple. The first air outlet pipe and the second air outlet pipe are arranged on the wall surface of the shell in a penetrating mode, and the shell is internally provided with a more sufficient pipeline arrangement space, so that the pipeline arrangement is facilitated.
Description
Technical Field
The utility model belongs to the technical field of the technique of making an uproar falls in engine emission aftertreatment and specifically relates to a dual mode silencer of exhaust system.
Background
With the continuous improvement of the living standard of people, the automobile does not meet the single function of only serving as a ride instead of walk, and the requirements on the entertainment and personalized characteristics of the automobile are gradually shown. The market space for automotive refinishers is increasing, and in particular the refinish proportion of exhaust mufflers is increasing. Some young people often like to practice and match on the racing field, so that the mode of the silencer needs to be switched; the existing silencer with switchable modes is complex in structure and complex in switching procedure.
SUMMERY OF THE UTILITY MODEL
The applicant aims at the defects that the existing silencer with switchable modes is complex in structure, complex in switching procedure and the like, and provides a dual-mode silencer with a reasonable structure for an exhaust system, wherein the dual-mode silencer is simple in structure and simple in mode switching procedure.
The utility model discloses the technical scheme who adopts as follows:
a dual-mode silencer of an exhaust system comprises a shell, wherein one end of the shell is provided with a front end cover, the other end of the shell is provided with a rear end cover, an air inlet is formed in the front end cover, a first air outlet pipe and a second air outlet pipe penetrate through the wall surface of the shell, and the first air outlet pipe and the second air outlet pipe are communicated with the air inlet; and a switching device is arranged on the second air outlet pipe and is communicated with a vehicle-mounted button, and the vehicle-mounted button controls the switching device to be opened or closed so as to realize the switching between the first running mode and the second running mode.
The utility model discloses a set up first outlet duct and second outlet duct and form double mode silencer, simple structure sets up auto-change over device on the second outlet duct, can realize the switching of first operational mode and second operational mode through the vehicle-mounted button, and the mode switch procedure is simple. The first air outlet pipe and the second air outlet pipe are arranged on the wall surface of the shell in a penetrating mode, and the shell is internally provided with a more sufficient pipeline arrangement space, so that the pipeline arrangement is facilitated.
As a further improvement of the above technical solution:
an air inlet pipe is arranged in the shell, and one end of the air inlet pipe is connected to the air inlet; the second air outlet pipe extends into the air inlet pipe.
A first partition plate, a second partition plate and a third partition plate are arranged in the shell to form a first cavity, a second cavity, a third cavity and a fourth cavity; a plurality of through holes are formed in the surfaces of the first partition plate, the second partition plate and the third partition plate, and adjacent cavities are communicated through the through holes in the partition plates.
The air inlet pipe penetrates through the first partition plate, the second partition plate and the third partition plate, and the other end of the air inlet pipe extends into the fourth cavity; the first air outlet pipe is communicated with the third cavity through the inner pipe assembly.
The inner pipe assembly comprises a first straight pipe, a bent pipe and a second straight pipe; one end of the first straight pipe is connected to the first air outlet pipe, the other end of the first straight pipe is connected to the bent pipe, the other end of the bent pipe is connected with the second straight pipe, and the other end of the second straight pipe extends into the third cavity.
The utility model discloses a consumption path of sound wave in the tail gas air current of third cavity in the inner tube subassembly is long, and noise elimination and noise reduction effect is better, and the tail gas air current need experience in the inner tube subassembly to turn to many times moreover, and the sound wave also needs to experience to turn to many times promptly, and the interference of sound wave and interference effect are better, more do benefit to the noise reduction, and noise elimination effect is better.
The first straight pipe penetrates through the second partition plate and the third partition plate; the bent pipe is positioned in the fourth cavity; the second straight pipe is arranged on the third clapboard in a penetrating way and is positioned at the lower side of the first straight pipe.
The part of the second clapboard, which is opposite to the orifice of the second straight pipe, is not provided with a hole to form a shielding part.
The utility model discloses a shielding part can avoid passing the second baffle from the sound wave that the transmission of second cavity orientation was come back and directly get into the second straight tube, can force the sound wave like this to get into the second straight tube again after turning to many times, and noise cancelling effect is better.
The first partition plate, the second partition plate and the third partition plate are sequentially arranged along the axial direction of the shell; the intake pipe is disposed along an axial direction of the housing.
The end part of the air inlet pipe connected with the air inlet is a bent pipe part.
The utility model discloses a tip that intake pipe and air inlet are connected is the bent pipe portion, connects through the bent pipe portion, and the transmission route of sound wave is longer, more does benefit to the consumption of sound wave, and noise elimination and noise reduction effect is better.
The switching device is an electronic valve.
The utility model has the advantages as follows:
the utility model discloses a set up first outlet duct and second outlet duct and form double mode silencer, simple structure sets up auto-change over device on the second outlet duct, can realize the switching of first operational mode and second operational mode through the vehicle-mounted button, and the mode switch procedure is simple. The first air outlet pipe and the second air outlet pipe are arranged on the wall surface of the shell in a penetrating mode, and the shell is internally provided with a more sufficient pipeline arrangement space, so that the pipeline arrangement is facilitated.
The utility model discloses a consumption path of sound wave in the tail gas air current of third cavity in the inner tube subassembly is long, and noise elimination and noise reduction effect is better, and the tail gas air current need experience in the inner tube subassembly to turn to many times moreover, and the sound wave also needs to experience to turn to many times promptly, and the interference of sound wave and interference effect are better, more do benefit to the noise reduction, and noise elimination effect is better.
The utility model discloses a shielding part can avoid passing the second baffle from the sound wave that the transmission of second cavity orientation was come back and directly get into the second straight tube, can force the sound wave like this to get into the second straight tube again after turning to many times, and noise cancelling effect is better.
The utility model discloses a tip that intake pipe and air inlet are connected is the bent pipe portion, connects through the bent pipe portion, and the transmission route of sound wave is longer, more does benefit to the consumption of sound wave, and noise elimination and noise reduction effect is better.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a right side view of fig. 1.
Fig. 3 is a sectional view a-a of fig. 2.
Fig. 4 is a schematic structural view of the present invention with the housing removed.
Fig. 5 shows the sound transmission path in the first operation mode of the present invention, and the arrow in the figure shows the sound direction.
Fig. 6 shows the sound transmission path in the second operation mode of the present invention, and the arrow in the figure shows the sound direction.
In the figure: 1. a housing; 2. a front end cover; 3. a rear end cap; 4. an air inlet; 5. a first air outlet pipe; 6. a second air outlet pipe; 7. a switching device; 8. an air inlet pipe; 81. a bent pipe portion; 9. an inner tube assembly; 91. a first straight pipe; 92. bending the pipe; 93. a second straight pipe; 11. a first separator; 12. a second separator; 121. a shielding portion; 13. a third partition plate; 14. a first cavity; 15. a second cavity; 16. a third cavity; 17. and a fourth cavity.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 and 2, a casing 1 of the present invention is an elliptic cylinder, a front end cover 2 is sealed on the front end of the casing 1, an air inlet 4 is arranged on the front end cover 2, a rear end cover 3 is sealed on the rear end of the casing 1, a first air outlet pipe 5 and a second air outlet pipe 6 are arranged on the wall surface of the middle portion of the casing 1 in a penetrating manner, the first air outlet pipe 5 and the second air outlet pipe 6 are arranged on the wall surface of the casing 1 in a penetrating manner, and the casing 1 has a more sufficient pipeline arrangement space, which is more beneficial to the arrangement of pipelines; a switching device 7 is arranged on the second air outlet pipe 6, the switching device 7 is an electronic valve and is communicated with a vehicle-mounted button, and the switching device can be opened or closed by transmitting an electric signal through the vehicle-mounted button to switch a first operation mode and a second operation mode of the silencer; in the first operation mode, the switching device 7 is closed, and the sound waves of the tail gas flow are transmitted out of the first gas outlet pipe 5; in the second mode of operation, the switching device 7 is switched on and the sound waves of the exhaust gas flow are transmitted out simultaneously from the first outlet duct 5 and the second outlet duct 6, respectively.
As shown in fig. 3 and 4, a first partition plate 11, a second partition plate 12, and a third partition plate 13 are sequentially disposed in the casing 1 from front to back along the axial direction, a first cavity 14, a second cavity 15, a third cavity 16, and a fourth cavity 17 are sequentially formed in the casing 1 from front to back to form a plurality of expansion cavities, the sound waves are refracted, reflected, and interfered in each expansion cavity, and the reflected and refracted sound wave wavelengths meet and cancel the incident sound wave wavelengths in the expansion cavities, so as to achieve the purpose of noise elimination and noise reduction; a plurality of through holes are formed in the surfaces of the first partition plate 11, the second partition plate 12 and the third partition plate 13, and adjacent cavities are communicated through the through holes in the partition plates. An air inlet pipe 8 is arranged in the shell 1 along the axial direction, the air inlet pipe 8 penetrates through the upper parts of the first partition plate 11, the second partition plate 12 and the third partition plate 13, one end of the air inlet pipe 8 is connected to the air inlet 4, and the other end of the air inlet pipe extends into the fourth cavity 17 to communicate the air inlet 4 with the fourth cavity 17; the front end that intake pipe 8 and air inlet 4 are connected is elbow portion 81, connects through elbow portion 81, and the transmission path of sound wave is longer, more does benefit to the consumption of sound wave, and noise elimination noise reduction effect is better. First outlet duct 5, second outlet duct 6 stretch into casing 1 inside, are located second cavity 15, and first outlet duct 5 passes through inner tube subassembly 9 intercommunication third cavity 16, and second outlet duct 6 upwards extends, stretches into in the intake pipe 8, communicates with intake pipe 8. The inner pipe assembly 9 is positioned below the air inlet pipe 8 and comprises a first straight pipe 91, an elbow pipe 92 and a second straight pipe 93 which are connected in sequence; the first straight pipe 91 is arranged on the second clapboard 12 and the third clapboard 13 in a penetrating way, one end of the first straight pipe is connected to the first air outlet pipe 5, and the other end of the first straight pipe is connected to the bent pipe 92; the bent pipe 92 is positioned in the fourth cavity 17, and the other end of the bent pipe is connected with the second straight pipe 93; the second straight pipe 93 is arranged on the third partition plate 13 in a penetrating way and positioned at the lower side of the first straight pipe 91, and the other end of the second straight pipe extends into the third cavity 16; the tail gas air current of third cavity 16 need flow through second straight tube 93 in proper order, return bend 92, first straight tube 91 just reachs first outlet duct 5, the flow path is long, the consumption path of sound wave in inner tube subassembly 9 is long, noise elimination and noise reduction effect is better, and the tail gas air current need experience many times in inner tube subassembly 9 and turn to, the sound wave also needs experience many times to turn to promptly, the interference and the interference effect of sound wave are better, more do benefit to noise reduction, noise elimination effect is better. As shown in fig. 4, a hole is not formed in the portion of the second partition plate 12 facing the pipe orifice of the second straight pipe 93 to form a shielding portion 121, so that the sound wave transmitted from the direction of the second cavity 15 can be prevented from directly entering the second straight pipe 93 after passing through the second partition plate 12, the sound wave can be forced to enter the second straight pipe 93 after being deflected for multiple times, and the silencing effect is better.
In practical use, when the automobile normally runs, a relatively quiet mode is required, as shown in fig. 5, the switching device 7 is in a closed state, the second air outlet pipe 6 is disconnected, and at the moment, the silencer is in a first running mode; as shown by arrows in the figure, sound waves in the exhaust gas flow pass through a transmission path of the air inlet pipe 8 → each expansion cavity (the fourth cavity 17, the third cavity 16, the second cavity 15 and the first cavity 14) → the inner pipe assembly 9 → the first air outlet pipe 5, the sound is consumed to a low sound effect and then passes out, and a relatively quiet mode is obtained.
When more dynamic sound waves are needed, as shown in fig. 6, the switching device 7 is turned on through the vehicle-mounted button, the second air outlet pipe 6 is conducted, and the silencer is in a second operation mode; as shown by the arrows in the figure, the sound waves in the exhaust gas flow have two transmission paths: one is the transfer path of the inlet pipe 8 → each expansion cavity (fourth cavity 17, third cavity 16, second cavity 15, first cavity 14) → inner pipe assembly 9 → first outlet pipe 5, and the other is the transfer path of the inlet pipe 8 → second outlet pipe 6; because the second transmission path is short, the sound waves directly enter the second air outlet pipe 6 from the air inlet pipe 8 and are transmitted out without being excessively consumed, original order sound waves of the engine are reserved, the sound effect is large, and after the sound effects of the two paths are mixed, dynamic sound waves are obtained.
The utility model discloses a set up first outlet duct 5 and form double mode silencer with second outlet duct 6, simple structure sets up auto-change over device 7 on second outlet duct 6, can realize the switching of first operational mode and second operational mode through the vehicle-mounted button, and the mode switching procedure is simple.
The above description is illustrative of the present invention and is not intended to limit the present invention, and the present invention may be modified in any manner without departing from the spirit of the present invention.
Claims (10)
1. The utility model provides a dual mode silencer of exhaust system, includes casing (1), and the one end of casing (1) is equipped with front end housing (2), and the other end is equipped with rear end cap (3), sets up air inlet (4), its characterized in that on front end housing (2): a first air outlet pipe (5) and a second air outlet pipe (6) penetrate through the wall surface of the shell (1), and the first air outlet pipe (5) and the second air outlet pipe (6) are communicated with the air inlet (4); and a switching device (7) is arranged on the second air outlet pipe (6), the switching device (7) is communicated with a vehicle-mounted button, and the vehicle-mounted button controls the switching device (7) to be opened or closed, so that the switching between the first running mode and the second running mode is realized.
2. The exhaust system dual mode muffler according to claim 1, wherein: an air inlet pipe (8) is arranged in the shell (1), and one end of the air inlet pipe (8) is connected to the air inlet (4); the second air outlet pipe (6) extends into the air inlet pipe (8).
3. The exhaust system dual mode muffler according to claim 1, wherein: a first partition plate (11), a second partition plate (12) and a third partition plate (13) are arranged in the shell (1) to form a first cavity (14), a second cavity (15), a third cavity (16) and a fourth cavity (17); a plurality of through holes are formed in the surfaces of the first partition plate (11), the second partition plate (12) and the third partition plate (13), and adjacent cavities are communicated through the through holes in the partition plates.
4. The exhaust system dual mode muffler according to claim 2 or 3, wherein: the air inlet pipe (8) penetrates through the first partition plate (11), the second partition plate (12) and the third partition plate (13), and the other end of the air inlet pipe (8) extends into the fourth cavity (17); the first air outlet pipe (5) is communicated with the third cavity (16) through the inner pipe assembly (9).
5. The exhaust system dual mode muffler according to claim 4, wherein: the inner pipe assembly (9) comprises a first straight pipe (91), an elbow pipe (92) and a second straight pipe (93); one end of the first straight pipe (91) is connected to the first air outlet pipe (5), the other end of the first straight pipe is connected to the bent pipe (92), the other end of the bent pipe (92) is connected with the second straight pipe (93), and the other end of the second straight pipe (93) extends into the third cavity (16).
6. The exhaust system dual mode muffler according to claim 5, wherein: the first straight pipe (91) penetrates through the second partition plate (12) and the third partition plate (13); the elbow (92) is positioned in the fourth cavity (17); the second straight pipe (93) is arranged on the third clapboard (13) in a penetrating way and is positioned at the lower side of the first straight pipe (91).
7. The exhaust system dual mode muffler according to claim 3, wherein: the part of the second clapboard (12) which is opposite to the pipe orifice of the second straight pipe (93) is not provided with a hole to form a shielding part (121).
8. The exhaust system dual mode muffler according to claim 2 or 3, wherein: the first partition plate (11), the second partition plate (12) and the third partition plate (13) are sequentially arranged along the axial direction of the shell (1); the air inlet pipe (8) is arranged along the axial direction of the shell (1).
9. The exhaust system dual mode muffler according to claim 1, wherein: the end part of the air inlet pipe (8) connected with the air inlet (4) is a bent pipe part (81).
10. The exhaust system dual mode muffler according to claim 1, wherein: the switching device (7) is an electronic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021691475.7U CN212690160U (en) | 2020-08-14 | 2020-08-14 | Dual mode muffler for an exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021691475.7U CN212690160U (en) | 2020-08-14 | 2020-08-14 | Dual mode muffler for an exhaust system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212690160U true CN212690160U (en) | 2021-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021691475.7U Active CN212690160U (en) | 2020-08-14 | 2020-08-14 | Dual mode muffler for an exhaust system |
Country Status (1)
| Country | Link |
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| CN (1) | CN212690160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776559A (en) * | 2022-05-05 | 2022-07-22 | 珠海凌达压缩机有限公司 | Pump body subassembly, compressor and air conditioner |
-
2020
- 2020-08-14 CN CN202021691475.7U patent/CN212690160U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776559A (en) * | 2022-05-05 | 2022-07-22 | 珠海凌达压缩机有限公司 | Pump body subassembly, compressor and air conditioner |
| CN114776559B (en) * | 2022-05-05 | 2023-09-15 | 珠海凌达压缩机有限公司 | Pump body assembly, compressor and air conditioner |
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