CN105464753A - Secondary silencer for automobile - Google Patents
Secondary silencer for automobile Download PDFInfo
- Publication number
- CN105464753A CN105464753A CN201410428666.7A CN201410428666A CN105464753A CN 105464753 A CN105464753 A CN 105464753A CN 201410428666 A CN201410428666 A CN 201410428666A CN 105464753 A CN105464753 A CN 105464753A
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- CN
- China
- Prior art keywords
- sound
- interior pipe
- automobile
- insulation board
- outer shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Exhaust Silencers (AREA)
Abstract
The invention provides a secondary silencer for an automobile. The secondary silencer for the automobile comprises an outer shell, an inner pipe, silencing filler and a steel wire ring, wherein the outer shell is a cylinder, the middle of the outer shell is thick, the two sides of the outer shell become thinner gradually, the right end is thicker than the left end, the thin end is a sound outlet, and the thick end is a sound inlet; the inner pipe is arranged inside the outer shell, one end of the inner pipe and the thin end of the outer shell are welded, the other end of the inner pipe and the thick end of the outer shell are sealed through the steel wire ring, and gaps between the inner pipe and the outer shell are filled with the silencing filler. The inner pipe comprises installation boards, sound insulation boards, baffles and silencing holes, wherein the installation boards are arranged at the uppermost end of the inner pipe; the sound insulation boards are hung on the installation boards; the baffles are arranged on the left sides of the sound insulation boards; the silencing holes are formed in the wall of the inner pipe. The secondary silencer for the automobile has the beneficial effect that the silencing effect can be enhanced due to arrangement of a horn mouth and the sound insulation boards.
Description
Technical field
The present invention relates to automotive muffler apparatus field, especially relate to a kind of automobile-used sub-muffler.
Background technique
Silencing apparatus is a kind of reduction noise device be arranged on the air-flow path of air powered equipment, it can stop Acoustic Wave Propagation, permission air-flow passes through, the propagation of control noise effectively, automobile exhaust noise is primarily of periodicity exhaust sound, turbulence noise and air column resonance noise composition, this noise is generally difficult to eliminate completely, can leave Yu Sheng after main muffler.
Summary of the invention
The object of this invention is to provide the simple automobile-used sub-muffler of a kind of structure.
Technological scheme of the present invention is:
Automobile-used sub-muffler, comprises shell, interior pipe, silent packing, steel traveler;
Described shell is middle thick, the tapered cylindrical shell in both sides, and right-hand member is coarser than left end, thinner one end is outlet sound mouth, thicker one end is inlet sound mouth, and described enclosure is provided with described interior pipe, and one end of described interior pipe and the thinner one end of described shell are welded, the other end and the thicker one end of described shell are shut by steel traveler, and gap is between filled with silent packing simultaneously;
Described interior pipe comprises mounting plate, insulation board, baffle plate, sound attenuation hole, described mounting plate is arranged on the top of described interior pipe, be hung with described insulation board thereon, the left side of described insulation board is provided with described baffle plate, described mounting plate, insulation board, baffle plate, formation one group of sound arrester, described sound arrester is provided with some groups, meanwhile on inner pipe wall, has sound attenuation hole.
Further, the material of described muffler material is glass fibre, and this material one carrys out good heat resistance, corrosion-resistant, is particularly suitable for the rugged environment in outlet pipe, has pliability simultaneously, can well absorb the energy of sound.
Further, the left end of described interior pipe is provided with the horn mouth of direction towards the right side, and this arranges and is used for a part of sound to be again reflected back interior pipe, strengthens erasure effect.
Further, described insulation board be tilted to the left 15 degree time, described baffle plate can block insulation board just to be continued to left movement, when outlet pipe air-flow is larger, insulation board is blowed to baffle plate and seal interior pipe, making sound wave from sound attenuation hole through then absorbing acoustic wave energy by muffler material, finally again passing to outlet sound mouth by sound attenuation hole and discharging hush tube.
Further, described sound attenuation hole is staggered, and sound wave is evenly passed to muffler material from sound attenuation hole, in order to avoid local superheating burns out muffler material, affects soundproof effect.
The advantage that the present invention has and good effect are: owing to adopting technique scheme, 1, be bell-mouthedly arranged so that a part of sound wave returns internal tube and eliminates the noise further, strengthen soundproof effect; 2, arranging when air-flow can be made larger of insulation board seals interior pipe, makes most of sound wave enter muffler material from sound attenuation hole, eliminates the noise, and strengthens soundproof effect.
Accompanying drawing explanation
Fig. 1 is half section structural representation of the present invention;
In figure:
1, shell 2, interior pipe 3, sound attenuation hole
4, mounting plate 5, baffle plate 6, insulation board
7, horn mouth 8, silent packing 9, steel traveler
10, inlet sound mouth 11, outlet sound mouth
Embodiment
As shown in Figure 1, the present invention includes shell 1, interior pipe 2, silent packing 8, steel traveler 9;
Described shell 1 is middle thick, the tapered cylindrical shell in both sides, and right-hand member is coarser than left end, thinner one end is outlet sound mouth 11, and thicker one end is inlet sound mouth 10, and described shell 1 inside is provided with described interior pipe 2, one end of described interior pipe 2 and the thinner one end of described shell 1 are welded, the other end and the thicker one end of described shell 1 are shut by steel traveler 9, and gap is between filled with silent packing 8 simultaneously, and its material is glass fibre;
Described interior pipe 2 comprises mounting plate 4, insulation board 6, baffle plate 5, sound attenuation hole 3, described mounting plate 4 is arranged on the top of described interior pipe 2, be hung with described insulation board 6 thereon, the left side of described insulation board 6 is provided with described baffle plate 5, and described insulation board be tilted to the left 15 degree time, described baffle plate 5 just can block insulation board 6 and continue to left movement, described mounting plate 4, insulation board 6, baffle plate 5, form one group of sound arrester, described sound arrester is provided with some groups, meanwhile the left side of interior pipe 2 is provided with the horn mouth 7 of direction towards the right side, interior pipe 2 tube wall has sound attenuation hole 3, and it is staggered.
The working procedure of this example: first automobile-used sub-muffler is arranged on agent set, when the noisy air-flow of folder enters interior pipe 2 from inlet sound mouth 10, insulation board 6 blows and withstands on baffle plate 5 by air-flow, then the major part of sound wave can enter silent packing 8 from the sound attenuation hole 3 on right side, because sound wave is mechanical wave, under the effect of silent packing 8, sound wave is converted to heat, reduce noise, and then spread out of by the sound attenuation hole 3 in left side, a part of sound wave can transfer back to interior pipe 2 inside by horn mouth 7 again at this moment, again eliminate the noise, further enhancing soundproof effect, described shell 1 is preferably circular section with interior pipe 2, this shape can make sound wave and silent packing 8 area of contact maximize.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (5)
1. automobile-used sub-muffler, is characterized in that: comprise shell (1), interior pipe (2), silent packing (8), steel traveler (9);
Described shell (1) is middle thick, the tapered cylindrical shell in both sides, and right-hand member is coarser than left end, thinner one end is outlet sound mouth (11), thicker one end is inlet sound mouth (10), described shell (1) inside is provided with described interior pipe (2), one end of described interior pipe (2) and the thinner one end of described shell (1) are welded, the other end and the thicker one end of described shell (1) are shut by steel traveler (9), and gap is between filled with silent packing (8) simultaneously;
Described interior pipe (2) comprises mounting plate (4), insulation board (6), baffle plate (5), sound attenuation hole (3), described mounting plate (4) is arranged on the top of described interior pipe (2), be hung with described insulation board (6) thereon, the left side of described insulation board (6) is provided with described baffle plate (5), described mounting plate (4), insulation board (6), baffle plate (5), form one group of sound arrester, described sound arrester is provided with some groups, meanwhile on interior pipe (2) tube wall, has sound attenuation hole (3).
2. automobile-used sub-muffler according to claim 1, is characterized in that: the material of described muffler material (8) is glass fibre.
3. automobile-used sub-muffler according to claim 1, is characterized in that: the left end of described interior pipe (2) is provided with the horn mouth (7) of direction towards the right side.
4. automobile-used sub-muffler according to claim 1, is characterized in that: described insulation board (6) be tilted to the left 15 degree time, described baffle plate (5) just can block insulation board (6) continue to left movement.
5. automobile-used sub-muffler according to claim 1, is characterized in that: described sound attenuation hole (3) is staggered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410428666.7A CN105464753A (en) | 2014-08-28 | 2014-08-28 | Secondary silencer for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410428666.7A CN105464753A (en) | 2014-08-28 | 2014-08-28 | Secondary silencer for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105464753A true CN105464753A (en) | 2016-04-06 |
Family
ID=55602849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410428666.7A Pending CN105464753A (en) | 2014-08-28 | 2014-08-28 | Secondary silencer for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105464753A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401699A (en) * | 2016-05-31 | 2017-02-15 | 湖南长丰汽车零部件有限责任公司 | Gasoline exhaust silencer |
| CN109899131A (en) * | 2019-04-24 | 2019-06-18 | 济南吉美乐电源技术有限公司 | A kind of high reliable plate-type silencer |
-
2014
- 2014-08-28 CN CN201410428666.7A patent/CN105464753A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401699A (en) * | 2016-05-31 | 2017-02-15 | 湖南长丰汽车零部件有限责任公司 | Gasoline exhaust silencer |
| CN109899131A (en) * | 2019-04-24 | 2019-06-18 | 济南吉美乐电源技术有限公司 | A kind of high reliable plate-type silencer |
| CN109899131B (en) * | 2019-04-24 | 2023-11-03 | 济南吉美乐电源技术有限公司 | High-reliability plate-type muffler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160406 |