A new type of silencer structure
By designing an integrated silencer tube group and multiple gradually reduced silence chambers in the muffler cylinder, combined with the design of the cone-type flow guide, the existing muffler structure is solved and the problems of poor exhaust noise reduction effect are achieved, and a stable and reliable muffler structure and excellent exhaust noise reduction effect are achieved.
Patent Information
- Application Number
- CN202421555396.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-07-03
AI Technical Summary
The multi-stage silence structure of existing mufflers is distributed in the cylinder, resulting in complex internal structure, difficult processing, and poor exhaust noise reduction effect.
A new type of muffler is designed, and a silencer with integrated muffler group structure is adopted. The silencer assembly extending from one end to the other end is arranged in the cylinder, including a plurality of gradually reduced muffler chambers and a conical flow guide. The exhaust gas is smoothly entered the muffler group through the conical flow guide, reducing the exhaust back pressure, and performing multi-angle impact in multiple muffler chambers to lose sound energy.
It realizes a muffler with stable and reliable structure and is easy to produce and process. Through the design of multi-stage muffler chambers and cone-type flow guides, the exhaust noise reduction effect is significantly improved.
Smart Images
Figure CN222731621U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motorcycle mufflers, in particular to a muffler with a novel muffler structure. Background Art
[0002] The existing muffler is provided with a multi-stage muffler structure formed by a plurality of muffler pipes and a plurality of partitions in the cylinder. Since the multi-stage muffler structure is dispersedly distributed inside the cylinder, the internal structure of the cylinder becomes complicated, resulting in many processing steps and great processing difficulty.
[0003] Therefore, in order to solve the above problems, it is necessary to develop a muffler with a new type of muffler structure, which has good exhaust noise reduction effect, stable and reliable structure, and is easy to produce and process. Utility Model Content
[0004] In order to solve the above problems, the technical solutions adopted by the utility model are as follows:
[0005] A muffler with a novel muffler structure comprises a cylinder and an air intake pipe, wherein a muffler assembly extending from one end to the other end is arranged in the cylinder, the front end of the cylinder is connected to the air intake pipe through a front cone, the muffler assembly comprises a muffler pipe group, the two ends of the muffler pipe group are respectively provided with a front end cover and a rear end cover, the cylinder is located inside and between the front end cover and the front cone to form a first muffler chamber, a conical guide coaxial with the air intake pipe is arranged in the first muffler chamber, the cone bottom of the conical guide is connected to the front end cover, and the cone top faces the air intake pipe;
[0006] A first through hole is formed in an area of the front end cover that is not connected to the conical flow guide member.
[0007] Preferably, the muffler pipe group includes a first muffler pipe, which is in the shape of a cone, with an end with a small inner diameter connected to the area of the front end cover located at the conical guide member, and an end with a large inner diameter connected to the rear end cover, and a second muffler chamber is formed between the first muffler pipe, the cylinder body and the front end cover;
[0008] A second through hole is provided on the outer side surface of the end with a larger inner diameter of the first silencer pipe, a second silencer pipe connected to the outside is arranged inside the first silencer pipe, and a third silencer chamber is formed between the second silencer pipe, the first silencer pipe and the rear end cover.
[0009] Preferably, the silencer pipe group further includes a third silencer pipe arranged in the second silencer chamber, the third silencer pipe is in a conical shape, the end with a larger inner diameter is connected to the outer edge of the front end cover, the end with a smaller inner diameter is connected to the non-second through hole area on the outer side of the first silencer pipe, and the outer side of the end with a smaller inner diameter of the third silencer pipe is provided with a third through hole;
[0010] A second front silencer chamber is formed between the front end cover, the third silencer pipe and the first silencer pipe, and a second rear silencer chamber is formed between the third silencer pipe, the first silencer pipe and the cylinder body.
[0011] Preferably, a fourth through hole is opened in the area of the front end cover located in the third silencer chamber, the conical flow guide is a hollow structure, and the fourth through hole connects the third silencer chamber with the inner cavity of the conical flow guide.
[0012] Preferably, the cross section of the second silencer chamber gradually decreases from the front end cover to the rear end cover, and the cross section of the third silencer chamber gradually decreases from the rear end cover to the front end cover.
[0013] Preferably, the cross-section of the second silencer front chamber gradually decreases from the front end cover to the rear end cover, and the cross-section of the second silencer rear chamber gradually decreases from the rear end cover to the front end cover.
[0014] Preferably, a fourth silencer chamber is formed between the rear end cover of the silencer assembly and the cylinder body, and a silencer hole is provided on the outer side of the second silencer pipe located in the fourth silencer chamber.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] 1. By setting up an integrated silencer pipe group structure design in the cylinder, it is easy to produce and process, and the overall structure is stable and reliable.
[0017] 2. By arranging a conical guide piece in the first muffler chamber connected to the air intake pipe, the exhaust gas can smoothly pass through the first through hole and enter the muffler pipe group, thereby reducing the exhaust back pressure.
[0018] 3. Multiple silencer chambers with gradually decreasing spaces are formed in the silencer assembly to block and intercept the sound energy in the exhaust gas, and the intercepted sound energy is impacted and lost at multiple angles in the silencer chamber, thus achieving multi-stage silencer and excellent exhaust noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;
[0020] Figure 2 It is an exploded schematic diagram of the hidden cylinder in the utility model;
[0021] Among them: cylinder 1, air intake pipe 2, silencer assembly 3, front cone 4, cone-shaped guide member 5, first silencer chamber 10, second silencer chamber 20, third silencer chamber 30, fourth silencer chamber 40, silencer pipe group 31, front end cover 32, rear end cover 33, first silencer pipe 311, second silencer pipe 312, third silencer pipe 313, second silencer front chamber 201, second silencer rear chamber 202, first through hole 32a, fourth through hole 32b, second through hole 311a, silencer hole 312a, third through hole 313a. DETAILED DESCRIPTION
[0022] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon at the same time. The terms "vertical", "horizontal", "left", "right", "up", "down", "front", "rear" and similar expressions used herein are for illustrative purposes only.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0025] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described:
[0026] like Figure 1-2 As shown, a muffler with a novel muffler structure comprises a cylinder 1 and an air intake pipe 2, wherein a muffler assembly 3 extending from one end to the other end is arranged in the cylinder 1, and the front end of the cylinder 1 is connected to the air intake pipe 2 through a front cone 4, and the muffler assembly 3 comprises a muffler pipe group 31, and the two ends of the muffler pipe group 31 are respectively provided with a front end cover 32 and a rear end cover 33, and a first muffler chamber 10 is formed inside the cylinder 1 between the front end cover 32 and the front cone 4, and a conical guide member 5 coaxial with the air intake pipe 2 is arranged in the first muffler chamber 10, and the conical bottom of the conical guide member 5 is connected to the front end cover 32, and the conical top faces the air intake pipe 2;
[0027] A first through hole 32 a is defined in an area of the front end cover 32 that is not connected to the conical flow guide 5 .
[0028] In this embodiment, the inflowing exhaust gas undergoes expansion through the first silencer chamber 10 to dissipate sound energy, and the exhaust gas is allowed to smoothly pass through the first through hole 32a into the silencer pipe group 31 through the conical guide member 5 to reduce exhaust back pressure; during operation, the exhaust gas enters the silencer pipe group 31 in the cylinder 1 from the intake pipe 2 through the first silencer chamber 10 through the first through hole 32a and then is discharged after being silenced by the silencer pipe group 31.
[0029] In addition, compared with the multi-stage silencer structure of the prior art, the integrated silencer pipe group 31 structure design is easy to produce and process, and the overall structure is stable and reliable.
[0030] Further, such as Figure 1-2 As shown, the muffler pipe group 31 includes a first muffler pipe 311, which is in the shape of a cone, with an end with a small inner diameter connected to the front end cover 32 located in the area of the conical guide member 5, and an end with a large inner diameter connected to the rear end cover 33, and a second muffler chamber 20 is formed between the first muffler pipe 311 and the cylinder 1 and the front end cover 32;
[0031] A second through hole 311a is provided on the outer side surface of the end with a larger inner diameter of the first silencer pipe 311, a second silencer pipe 312 connected to the outside is arranged inside the first silencer pipe 311, and a third silencer chamber 30 is formed between the second silencer pipe 312, the first silencer pipe 311 and the rear end cover 33.
[0032] In this embodiment, after the primary silencing treatment in the first silencing chamber 10, the exhaust gas hits the front end cover 32 and enters the second silencing chamber 20 from the first through hole 32a, losing part of the sound energy, and realizing the secondary silencing; then, the exhaust gas enters the third silencing chamber 30 from the second silencing chamber 20 through the second through hole 311a, and most of the sound energy is blocked in the second silencing chamber 20 during the process, and the intercepted part of the sound energy is impacted and lost at multiple angles in the second silencing chamber 20, realizing the third level of silencing;
[0033] Then, the exhaust gas is discharged to the outside through the second silencer pipe 312 after being impacted and lost at multiple angles in the third silencer chamber 30. In the process, most of the sound energy is blocked in the third silencer chamber 30, realizing three-level silencer, thereby gradually losing the sound energy in the exhaust gas and achieving a better exhaust noise reduction effect.
[0034] Further, such as Figure 1-2As shown, in order to improve the loss of exhaust sound energy; the muffler pipe group 31 also includes a third muffler pipe 313 arranged in the second muffler chamber 20, the third muffler pipe 313 is conical, the end with a large inner diameter is connected to the outer edge of the front end cover 32, and the end with a small inner diameter is connected to the non-second through hole 311a area of the outer side surface of the first muffler pipe 311, and the outer side surface of the end with a small inner diameter of the third muffler pipe 313 is provided with a third through hole 313a;
[0035] A second silencer front chamber 201 is formed between the front end cover 32 , the third silencer pipe 313 and the first silencer pipe 311 , and a second silencer rear chamber 202 is formed between the third silencer pipe 313 , the first silencer pipe 311 and the cylinder body 1 .
[0036] During operation, before the exhaust gas enters the third chamber from the first silencer chamber 10, part of its sound energy is blocked and subjected to multi-angle impact loss in the second silencer front chamber 201 and the second silencer rear chamber 202, thereby further improving the exhaust noise reduction effect.
[0037] Further, such as Figure 1-2 As shown, in order to enhance the silencing and noise reduction effect of the third silencing chamber 30, a fourth through hole 32b is provided in the area of the front end cover 32 located in the third silencing chamber 30, and the conical flow guide member 5 is a hollow structure, and the fourth through hole 32b connects the third silencing chamber 30 with the inner cavity of the conical flow guide member 5.
[0038] During operation, the exhaust gas is made to collide with the front end cover 32 again to lose part of the sound energy, and the sound energy entering the inner cavity of the conical flow guide 5 is made to collide with a smaller space at multiple angles, thereby accelerating the loss of sound energy.
[0039] Further, such as Figure 1 As shown, the cross section of the second muffler chamber 20 gradually decreases from the front end cover 32 to the rear end cover 33 , and the cross section of the third muffler chamber 30 gradually decreases from the rear end cover 33 to the front end cover 32 .
[0040] In this embodiment, the exhaust gas is allowed to enter the second silencer chamber 20 and the third silencer chamber 30 with gradually decreasing spaces in turn, and most of the sound energy is blocked and intercepted in turn, and the intercepted sound energy is subjected to multi-angle impact loss in the second silencer chamber 20 and the third silencer chamber 30, thereby achieving a good exhaust noise reduction effect. Compared with the existing complex silencer structure, it is easy to produce and process, and the quality is stable and reliable.
[0041] Further, such as Figure 1 As shown, in order to enhance the loss effect of sound energy entering the second silencer chamber 20, the cross-section of the second silencer front chamber 201 gradually decreases from the front end cover 32 to the rear end cover 33, and the cross-section of the second silencer rear chamber 202 gradually decreases from the rear end cover 33 to the front end cover 32.
[0042] During operation, the exhaust gas enters the second front silencer chamber 201 and the second rear silencer chamber 202 with gradually decreasing spaces in turn, and most of the sound energy is blocked and intercepted in turn, and the intercepted sound energy is subjected to multi-angle impact loss in the second front silencer chamber 201 and the second rear silencer chamber 202, thereby achieving a good exhaust noise reduction effect.
[0043] Further, such as Figure 1 , 2 As shown, in order to enhance the exhaust noise reduction effect and improve the low-frequency silencing capability, a fourth silencing chamber 40 is formed between the rear end cover 33 of the silencing assembly 3 and the barrel 1, and a silencing hole 312a is provided on the outer side of the second silencing pipe 312 located in the fourth silencing chamber 40.
[0044] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the scope of protection of the claims of the utility model patent.
Claims
1. A muffler with a novel muffler structure, comprising a cylinder and an air intake pipe, characterized in that: A silencer assembly extending from one end to the other end is arranged in the cylinder, the front end of the cylinder is connected to the intake pipe through the front cone, the silencer assembly includes a silencer pipe group, the two ends of the silencer pipe group are respectively provided with a front end cover and a rear end cover, the cylinder is located inside and between the front end cover and the front cone to form a first silencer chamber, a conical guide member coaxial with the intake pipe is arranged in the first silencer chamber, the cone bottom of the conical guide member is connected to the front end cover, and the cone top faces the intake pipe; A first through hole is formed in an area of the front end cover that is not connected to the conical flow guide member.
2. A muffler with a novel muffler structure according to claim 1, characterized in that: The muffler pipe group comprises a first muffler pipe, which is in a conical cylinder shape, with an end with a small inner diameter connected to the front end cover at the area of the conical guide member, and an end with a large inner diameter connected to the rear end cover, and a second muffler chamber is formed between the first muffler pipe, the cylinder body and the front end cover; A second through hole is provided on the outer side surface of the end with a larger inner diameter of the first silencer pipe, a second silencer pipe connected to the outside is arranged inside the first silencer pipe, and a third silencer chamber is formed between the second silencer pipe, the first silencer pipe and the rear end cover.
3. A muffler with a novel muffler structure according to claim 2, characterized in that: The silencer pipe group further includes a third silencer pipe arranged in the second silencer chamber, the third silencer pipe is in a conical shape, one end with a larger inner diameter is connected to the outer edge of the front end cover, and the other end with a smaller inner diameter is connected to the non-second through hole area of the outer side surface of the first silencer pipe, and a third through hole is provided on the outer side surface of the end with a smaller inner diameter of the third silencer pipe; A second front silencer chamber is formed between the front end cover, the third silencer pipe and the first silencer pipe, and a second rear silencer chamber is formed between the third silencer pipe, the first silencer pipe and the cylinder body.
4. The muffler of the novel muffler structure according to claim 2 is characterized in that: A fourth through hole is formed in the area of the front end cover located in the third silencing chamber. The conical flow guide is a hollow structure. The fourth through hole connects the third silencing chamber with the inner cavity of the conical flow guide.
5. The muffler of the novel muffler structure according to claim 2 is characterized in that: The cross section of the second muffler chamber gradually decreases from the front end cover to the rear end cover, and the cross section of the third muffler chamber gradually decreases from the rear end cover to the front end cover.
6. The muffler of the novel muffler structure according to claim 3 is characterized in that: The cross section of the second muffler front chamber gradually decreases from the front end cover to the rear end cover, and the cross section of the second muffler rear chamber gradually decreases from the rear end cover to the front end cover.
7. The muffler of the novel muffler structure according to claim 3 is characterized in that: A fourth silencer chamber is formed between the rear end cover of the silencer assembly and the cylinder body, and a silencer hole is provided on the outer side of the second silencer pipe located in the fourth silencer chamber.