CN205779125U - A kind of automobile exhaust muffler - Google Patents
A kind of automobile exhaust muffler Download PDFInfo
- Publication number
- CN205779125U CN205779125U CN201620511503.XU CN201620511503U CN205779125U CN 205779125 U CN205779125 U CN 205779125U CN 201620511503 U CN201620511503 U CN 201620511503U CN 205779125 U CN205779125 U CN 205779125U
- Authority
- CN
- China
- Prior art keywords
- automobile exhaust
- core pipe
- exhaust muffler
- hole
- hole group
- 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.)
- Expired - Fee Related
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 229920000742 Cotton Polymers 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a kind of automobile exhaust muffler, including the housing with air inlet and air vent, described automobile exhaust muffler also includes the core pipe being arranged in described housing, the two ends of described core pipe are respectively facing described air inlet and described air vent, forming a cavity between outer circumference surface and the inner peripheral surface of described housing of described core pipe, the inner chamber of described core pipe connects with described cavity.This automobile exhaust muffler simple in construction, internal intake and exhaust are smooth and easy, and power attenuation is little, and soundproof effect is good, substantially increase the reliability of acoustic filter work.
Description
Technical field
This utility model relates to technical field of automobile, is specifically related to a kind of automobile exhaust muffler.
Background technology
Acoustic filter is the device of abatement pneumatic noise, is installed in pipeline or on inlet and outlet mouth, air-flow by while noise had certain consumption.Existing acoustic filter intake and exhaust resistance is bigger, and air flow property is poor, greatly reduces the reliability of acoustic filter work.
Utility model content
Technical problem to be solved in the utility model is for problem of the prior art, it is provided that a kind of soundproof effect is good, the automobile exhaust muffler that exhaust resistance is little.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is:
A kind of automobile exhaust muffler, including the housing with air inlet and air vent, described automobile exhaust muffler also includes the core pipe being arranged in described housing, the two ends of described core pipe are respectively facing described air inlet and described air vent, forming a cavity between outer circumference surface and the inner peripheral surface of described housing of described core pipe, the inner chamber of described core pipe connects with described cavity.
Preferably, described core tube cavity and the first hole group of described cavity and the second hole group it is communicated with on described core pipe, described first hole group and described second hole group all have many groups, often organize described first hole group and include multiple first hole, multiple described first holes are spaced setting along the axial direction of described core pipe, often organize described second hole group and include multiple second hole, multiple described second holes are spaced along the axial direction interval setting of described core pipe, the described first hole group of many groups and described second hole group along the circumferential direction of described core pipe and are arranged alternately.
Further, described first hole has 21, and described second hole has 20.
Further, the diameter in described first hole and described second hole is 3.5mm.
Further, described first hole group and described second hole group are respectively provided with 14 groups.
Preferably, described automobile exhaust muffler also includes the acoustical cotton being arranged in described cavity.
Preferably, described air inlet and described air vent lay respectively at the both sides on described shell length direction, and the central axis of described air inlet and described air vent extends along same rectilinear direction.
Utilization due to technique scheme, this utility model compared with prior art has the advantage that automobile exhaust muffler simple in construction of the present utility model, and internal intake and exhaust are smooth and easy, and power attenuation is little, soundproof effect is good, substantially increases the reliability of acoustic filter work.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of automobile exhaust muffler of the present utility model.
Detailed description of the invention
With specific embodiment, the technical solution of the utility model is further elaborated below in conjunction with the accompanying drawings.
Automobile exhaust muffler shown in Figure 1, is provided with air inlet 11 and air vent 12 including housing 1, housing 1.Preferably, air inlet 11 and air vent 12 lay respectively at the both sides on the length direction of housing 1, and the central axis of air inlet 11 and air vent 12 extends along same rectilinear direction.
This automobile exhaust muffler also includes the core pipe 2 being arranged in housing 1, and the both ends of core pipe 2 are respectively facing air inlet 11 and air vent 12, forms a cavity 3 between the outer circumference surface and the inner peripheral surface of housing 1 of core pipe 2, this cavity 3 and the intracavity inter-connection of core pipe 2.
Concrete, core pipe 2 is communicated with the first hole group 21 and the second hole group 22 of cavity 3 and core pipe 2 inner chamber, the first hole group 21 and the second hole group 22 have many groups, and many groups the first hole group 21 and many groups the second hole group 22 are arranged alternately along the circumferential direction interval of core pipe 2.Each first hole group 21 includes multiple first hole, and multiple first holes are spaced setting along the axial direction of core pipe 2, and each second hole group 22 includes multiple second hole, and multiple second holes are spaced setting along the axial direction of core pipe 2.A kind of specific embodiment, the first hole group 21 and the second hole group 22 be equipped with 14 groups, and the first hole is provided with 21, and the second hole is provided with 20, and the first hole is identical with the diameter in the second hole, and its diameter is 3.5mm.
This automobile exhaust muffler also includes the acoustical cotton 4 being arranged in cavity 3, and this acoustical cotton can absorb the high frequency noise in vehicle exhaust.
During the work of this automobile exhaust muffler, air-flow flows into from the air inlet 11 of housing 1, and the inner chamber along core pipe 2 flows, and then flows out from the gas outlet 12 of housing 1.Air-flow flows in or out cavity 3 by the first hole group 21 above core pipe 2 and the second hole group 22, form a structure of resonant cavity, the medium-high frequency noise that this resonant cavity can absorb in vehicle exhaust, can absorb the high frequency noise in tail gas by the acoustical cotton 4 within cavity 3 simultaneously further.
This automobile exhaust muffler simple in construction, compact and reasonable, easy to assembly fast, connect reliable, absorbing medium-high frequency noise by resonant cavity and acoustical cotton, internal intake and exhaust are smooth and easy, and power attenuation is little, soundproof effect is good, substantially increases the reliability of acoustic filter work, it is easy to uses and promotes.
Above-described embodiment only for technology of the present utility model design and feature are described, its object is to allow person skilled in the art will appreciate that content of the present utility model and to implement according to this, can not limit protection domain of the present utility model with this.All equivalence changes made according to this utility model spirit or modification, all should contain within protection domain of the present utility model.
Claims (7)
1. an automobile exhaust muffler, including the housing with air inlet and air vent, it is characterized in that: described automobile exhaust muffler also includes the core pipe being arranged in described housing, the two ends of described core pipe are respectively facing described air inlet and described air vent, forming a cavity between outer circumference surface and the inner peripheral surface of described housing of described core pipe, the inner chamber of described core pipe connects with described cavity.
Automobile exhaust muffler the most according to claim 1, it is characterized in that: on described core pipe, be communicated with described core tube cavity and the first hole group of described cavity and the second hole group, described first hole group and described second hole group all have many groups, often organize described first hole group and include multiple first hole, multiple described first holes are spaced setting along the axial direction of described core pipe, often organize described second hole group and include multiple second hole, multiple described second holes are spaced setting along the axial direction of described core pipe, described first hole group and the described second hole groups organized are spaced along the circumferential direction of described core pipe and are arranged alternately more.
Automobile exhaust muffler the most according to claim 2, it is characterised in that: described first hole has 21, and described second hole has 20.
Automobile exhaust muffler the most according to claim 2, it is characterised in that: the diameter in described first hole and described second hole is 3.5mm.
Automobile exhaust muffler the most according to claim 2, it is characterised in that: described first hole group and described second hole group are respectively provided with 14 groups.
Automobile exhaust muffler the most according to claim 1, it is characterised in that: described automobile exhaust muffler also includes the acoustical cotton being arranged in described cavity.
Automobile exhaust muffler the most according to claim 1, it is characterised in that: described air inlet and described air vent lay respectively at the both sides on described shell length direction, and the central axis of described air inlet and described air vent extends along same rectilinear direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620511503.XU CN205779125U (en) | 2016-05-31 | 2016-05-31 | A kind of automobile exhaust muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620511503.XU CN205779125U (en) | 2016-05-31 | 2016-05-31 | A kind of automobile exhaust muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205779125U true CN205779125U (en) | 2016-12-07 |
Family
ID=58139210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620511503.XU Expired - Fee Related CN205779125U (en) | 2016-05-31 | 2016-05-31 | A kind of automobile exhaust muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205779125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971689A (en) * | 2016-05-31 | 2016-09-28 | 清华大学苏州汽车研究院（相城） | Automobile exhaust muffler |
-
2016
- 2016-05-31 CN CN201620511503.XU patent/CN205779125U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971689A (en) * | 2016-05-31 | 2016-09-28 | 清华大学苏州汽车研究院（相城） | Automobile exhaust muffler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20200531 |