CN204436550U - A kind of tailpipe and vehicle - Google Patents
A kind of tailpipe and vehicle Download PDFInfo
- Publication number
- CN204436550U CN204436550U CN201420833225.0U CN201420833225U CN204436550U CN 204436550 U CN204436550 U CN 204436550U CN 201420833225 U CN201420833225 U CN 201420833225U CN 204436550 U CN204436550 U CN 204436550U
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- CN
- China
- Prior art keywords
- tailpipe
- connecting tube
- helmholtz resonance
- resonance cavity
- cavity configuration
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- 239000000463 material Substances 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 6
- 230000030279 gene silencing Effects 0.000 claims description 4
- 230000008030 elimination Effects 0.000 abstract description 6
- 238000003379 elimination reaction Methods 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model provides a kind of tailpipe and vehicle, wherein, tailpipe comprises: comprise tailpipe body, helmholtz resonance cavity configuration and connecting tube, described helmholtz resonance cavity configuration is connected with described tailpipe body by described connecting tube, and described helmholtz resonance cavity configuration is connected with described tailpipe body by described connecting tube.This programme, by arranging helmholtz resonance cavity configuration, when the sound wave of muffler outlet arrives resonant cavity, due to the change of intersection acoustic impedance, thus reaches the object of noise elimination, solves tailpipe place noise comparatively large and be difficult to the problem that reduces.
Description
Technical field
The utility model relates to technical field of vehicle, refers to a kind of tailpipe and vehicle especially.
Background technique
Idle noise test finds, tailpipe outlet port has the noise of a 120Hz frequency comparatively large, is directly delivered in car, have impact on the travelling comfort of internal car noise, and due to chassis limited space, exhaust silencer volume can not meet design requirement, this frequency noise is made to be difficult to reduce.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of tailpipe and vehicle, solves tailpipe place noise in prior art comparatively large and be difficult to the problem that reduces.
For solving the problems of the technologies described above, embodiment of the present utility model provides a kind of tailpipe, comprise tailpipe body, helmholtz resonance cavity configuration and connecting tube, described helmholtz resonance cavity configuration is connected with described tailpipe body by described connecting tube, and described helmholtz resonance cavity configuration is connected with described tailpipe body by described connecting tube.
Wherein, the material of described connecting tube is metallic material.
Wherein, the material of described helmholtz resonance cavity configuration is metallic material.
Wherein, one end of described tailpipe body is exhaust end, and the other end is the inlet end be connected with silencing apparatus.
The utility model additionally provides a kind of vehicle, comprising: above-mentioned tailpipe.
The beneficial effect of technique scheme of the present utility model is as follows:
In such scheme, described tailpipe by arranging helmholtz resonance cavity configuration, muffler outlet sound wave arrive resonant cavity time, due to the change of intersection acoustic impedance, thus reach the object of noise elimination, solve tailpipe place noise comparatively large and be difficult to the problem that reduces.
Accompanying drawing explanation
Fig. 1 is the tailpipe structural representation one of the utility model embodiment;
Fig. 2 is the tailpipe structural representation two of the utility model embodiment.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearly, below in conjunction with the accompanying drawings and the specific embodiments the utility model is described in detail.
The utility model is comparatively large and be difficult to the problem that reduces for tailpipe place noise in existing technology, a kind of tailpipe is provided, as depicted in figs. 1 and 2, comprise tailpipe body 1, helmholtz resonance cavity configuration 2 and connecting tube 3, described helmholtz resonance cavity configuration 2 is connected with described tailpipe body 1 by described connecting tube 3, and described helmholtz resonance cavity configuration 2 is connected with described tailpipe body 1 by described connecting tube 3.
The described tailpipe that the utility model embodiment provides is by arranging helmholtz resonance cavity configuration, when the sound wave of muffler outlet arrives resonant cavity, due to the change of intersection acoustic impedance, thus reach the object of noise elimination, solve tailpipe place noise comparatively large and be difficult to the problem that reduces.
Wherein, helmholtz resonance cavity configuration can be connected with the middle part of tailpipe body by prioritizing selection.
Separately, the key dimension of helmholtz resonance cavity configuration has tailpipe body diameter, connecting tube diameter, connecting tube length, and the volume of cavity.The frequency of noise elimination of these parameter influence resonant cavities and the size of sound deadening capacity, and can need the characteristic frequency eliminated to determine according to the size of surrounding space during design.Such as, frequency (resonant frequency) f that need eliminate is 120Hz, then can design helmholtz resonance cavity configuration volume V is 2 liters, this volume space distance tailpipe body 290mm, namely connecting tube length Lc is 290mm, calculate formula (1) according to resonant frequency again can obtain, connecting tube diameter is 60mm.
In formula: f-resonant frequency (Hz);
C-velocity of sound (m/s);
Sc-connecting tube area (m
2);
V-helmholtz resonance cavity configuration volume (m
3);
Lc-connecting tube length (m).
The parameter designing this helmholtz resonance cavity configuration is accordingly: helmholtz resonance cavity configuration volume 2 liters, connecting tube length 290mm, connecting tube diameter 60mm, and only need ensure the size of helmholtz resonance cavity configuration volume, have nothing to do with the shape of helmholtz resonance cavity configuration.
The tailpipe construction cycle that the utility model embodiment provides is short, with low cost; Assembling is simple, replacing is convenient; By the size of adjustment helmholtz resonance cavity configuration volume and the diameter of connecting tube and length, it can be made to eliminate the noise of certain characteristic frequency.
Consider practical application, described in this practical embodiment, the material prioritizing selection of connecting tube is metallic material; The material prioritizing selection of described helmholtz resonance cavity configuration is metallic material.
Further, as shown in Figure 2, one end 4 of described tailpipe body 1 is exhaust end, and the other end 5 is the inlet end be connected with silencing apparatus 6.
The tailpipe that the utility model embodiment provides connects a cavity by connecting tube, forms helmholtz resonance chamber, as Fig. 1.Like this, when the sound wave of muffler outlet arrives resonant cavity, due to the change of intersection acoustic impedance, thus the object of noise elimination is reached.Frequency of noise elimination can pass through connecting tube diameter and length, and the volume in helmholtz resonance chamber ensures.And, owing to there being connecting tube, distance silencing apparatus being utilized compared with the space of distal part position, thus meets the object of noise reduction better.
In order to solve the problems of the technologies described above, the utility model embodiment still provides a kind of vehicle, comprising: above-mentioned tailpipe.
Wherein, the described embodiment of realization of above-mentioned tailpipe is all applicable in the embodiment of this vehicle, also can reach identical technique effect.
Above-described is preferred implementation of the present utility model; should be understood that the ordinary person for the art; can also make some improvements and modifications not departing under principle prerequisite described in the utility model, these improvements and modifications are also in protection domain of the present utility model.
Claims (5)
1. a tailpipe, it is characterized in that, comprise tailpipe body, helmholtz resonance cavity configuration and connecting tube, described helmholtz resonance cavity configuration is connected with described tailpipe body by described connecting tube, and described helmholtz resonance cavity configuration is connected with described tailpipe body by described connecting tube.
2. tailpipe as claimed in claim 1, it is characterized in that, the material of described connecting tube is metallic material.
3. tailpipe as claimed in claim 1, it is characterized in that, the material of described helmholtz resonance cavity configuration is metallic material.
4. tailpipe as claimed in claim 1, it is characterized in that, one end of described tailpipe body is exhaust end, and the other end is the inlet end be connected with silencing apparatus.
5. a vehicle, is characterized in that, comprising: the tailpipe as described in any one of Claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420833225.0U CN204436550U (en) | 2014-12-24 | 2014-12-24 | A kind of tailpipe and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420833225.0U CN204436550U (en) | 2014-12-24 | 2014-12-24 | A kind of tailpipe and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204436550U true CN204436550U (en) | 2015-07-01 |
Family
ID=53604428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420833225.0U Expired - Fee Related CN204436550U (en) | 2014-12-24 | 2014-12-24 | A kind of tailpipe and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204436550U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105139846A (en) * | 2015-07-23 | 2015-12-09 | 王峰 | Multiple-scattering mechanical wave elimination chamber and multiple-scattering mechanical wave noise abatement method |
| CN106023980A (en) * | 2016-05-31 | 2016-10-12 | 南京大学 | Sound insulator and formation method thereof |
| CN106523071A (en) * | 2016-11-30 | 2017-03-22 | 浙江工业大学 | Internal combustion engine exhaust silencer capable of automatically following two working conditions |
| CN107975604A (en) * | 2016-10-21 | 2018-05-01 | 费希尔控制产品国际有限公司 | Trim assemblies with collateral resonator array and the control valve for fluids including trim assemblies |
| WO2018094959A1 (en) * | 2016-11-22 | 2018-05-31 | 苏州大学张家港工业技术研究院 | Helmholtz resonance muffling unit based on labyrinth structure, and resonance muffler |
| CN109413559A (en) * | 2018-08-30 | 2019-03-01 | 南京粒子声学科技有限公司 | A kind of device for realizing vector sensor calibration using Helmholtz silencer |
| CN111971239A (en) * | 2018-04-16 | 2020-11-20 | 川崎重工业株式会社 | Belt conveyor and method for suppressing vibration of belt conveyor |
-
2014
- 2014-12-24 CN CN201420833225.0U patent/CN204436550U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105139846A (en) * | 2015-07-23 | 2015-12-09 | 王峰 | Multiple-scattering mechanical wave elimination chamber and multiple-scattering mechanical wave noise abatement method |
| CN106023980A (en) * | 2016-05-31 | 2016-10-12 | 南京大学 | Sound insulator and formation method thereof |
| CN107975604A (en) * | 2016-10-21 | 2018-05-01 | 费希尔控制产品国际有限公司 | Trim assemblies with collateral resonator array and the control valve for fluids including trim assemblies |
| CN107975604B (en) * | 2016-10-21 | 2022-04-05 | 费希尔控制产品国际有限公司 | Trim assembly with side branch resonator array and fluid control valve including trim assembly |
| WO2018094959A1 (en) * | 2016-11-22 | 2018-05-31 | 苏州大学张家港工业技术研究院 | Helmholtz resonance muffling unit based on labyrinth structure, and resonance muffler |
| CN106523071A (en) * | 2016-11-30 | 2017-03-22 | 浙江工业大学 | Internal combustion engine exhaust silencer capable of automatically following two working conditions |
| CN106523071B (en) * | 2016-11-30 | 2019-04-09 | 浙江工业大学 | The exhaust silencer that two operating condition of internal combustion engine follows automatically |
| CN111971239A (en) * | 2018-04-16 | 2020-11-20 | 川崎重工业株式会社 | Belt conveyor and method for suppressing vibration of belt conveyor |
| CN111971238A (en) * | 2018-04-16 | 2020-11-20 | 川崎重工业株式会社 | Belt conveyor |
| CN111971238B (en) * | 2018-04-16 | 2022-02-18 | 川崎重工业株式会社 | Belt conveyor |
| CN111971239B (en) * | 2018-04-16 | 2022-02-18 | 川崎重工业株式会社 | Belt conveyor and method for suppressing vibration of belt conveyor |
| CN109413559A (en) * | 2018-08-30 | 2019-03-01 | 南京粒子声学科技有限公司 | A kind of device for realizing vector sensor calibration using Helmholtz silencer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171229 Address after: 101300 Beijing city Shunyi District Shuanghe Street No. 99 Patentee after: BEIJING AUTOMOTIVE GROUP Co.,Ltd. Address before: 101300 Beijing City Renhe Town Shunyi District Shuanghe Street No. 99 Patentee before: BEIJING AUTOMOBILE RESEARCH GENERAL INSTITUTE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200528 Address after: 100130 Zhaofeng Town, Shunyi District, Beijing Zhaofeng industrial base Tongxin Road No. 1 Patentee after: BAIC GROUP ORV Co.,Ltd. Address before: 101300, 99, Shuanghe Avenue, Beijing, Shunyi District Patentee before: BEIJING AUTOMOTIVE GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |