CN204099002U - Vent systems silencing pot and automobile - Google Patents
Vent systems silencing pot and automobile Download PDFInfo
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- CN204099002U CN204099002U CN201420502573.XU CN201420502573U CN204099002U CN 204099002 U CN204099002 U CN 204099002U CN 201420502573 U CN201420502573 U CN 201420502573U CN 204099002 U CN204099002 U CN 204099002U
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- outlet pipe
- suction tude
- resonant cavity
- vent systems
- silencing pot
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Abstract
The utility model provides a kind of vent systems silencing pot and automobile, vent systems silencing pot comprises, housing, first dividing plate, second partition, suction tude, outlet pipe and hush tube, the inner space of housing is divided into the first resonant cavity along air current flow direction by the first dividing plate and second partition, second resonant cavity and the 3rd resonant cavity, the first paragraph of suction tude is positioned at the first resonant cavity, the second segment of suction tude is positioned at the second resonant cavity, the second segment of suction tude is provided with through hole, the first paragraph of outlet pipe is positioned at the 3rd resonant cavity, the second segment of outlet pipe is positioned at the second resonant cavity, steam outlet pipe is provided with through hole, the first paragraph of hush tube is positioned at the first resonant cavity, and the second segment of hush tube is positioned at the second resonant cavity.Fill compared with the mode of silencing cotton at housing hollow place with adopting in prior art, the technological scheme that the present embodiment provides reduces on-way resistance, reduces oil consumption, also can reduce the noise of medium and low frequency section simultaneously.
Description
Technical field
The utility model relates to automotive engineering, particularly relates to a kind of vent systems silencing pot and automobile.
Background technique
Automobile exhaust system silencing pot reduces exhaust sound, improves the vitals of the noise of car load, vibration, sound vibration roughness (Noise Vibration Harshness is called for short NVH) performance.Power performance and NVH performance are mainly considered in the design of vent systems silencing pot.Power performance is presented as exhaust back pressure, and exhaust back pressure is high, then oil consumption is high, and power moment of torsion declines, otherwise then oil consumption is low, and power moment of torsion promotes.NVH performance is presented as exhaust sound, and exhaust sound not only has laws and regulations requirement, and more profound influence is to the subjective feeling of driver and passenger.In most cases, exhaust sound should reduce as far as possible.The power performance of vent systems silencing pot is usually oppositely relevant to NVH performance.
At present, the structure of automobile exhaust system silencing pot is made up of housing, suction tude, outlet pipe and silencing cotton usually, wherein, suction tude and outlet pipe are arranged on enclosure interior, suction tude and the full section punching of outlet pipe, silencing cotton is filled in the cavity that housing and suction tude, outlet pipe formed, and the gas that automobile exhaust pipe is discharged can be absorbed by silencing cotton by the hole in suction tude and outlet pipe, thus can carry out noise reduction.
But silencing cotton is only relatively good to the erasure effect of high-frequency noise, and does not have effect to Middle and low frequency noise, and meanwhile, silencing cotton also can increase the resistance to air-flow, causes car load power moment of torsion to decline, oil consumption raises.
Model utility content
The utility model provides a kind of vent systems silencing pot and automobile, with the problem that the power performance and NVH performance that solve vent systems silencing pot of the prior art are not high.
First aspect of the present utility model provides a kind of vent systems silencing pot, comprising: housing, the first dividing plate, second partition, suction tude, outlet pipe and hush tube;
Wherein, described housing comprises: cylindrical shell, lid are located at the first end cap of described cylindrical shell inlet end and the second end cap of outlet side;
Described first dividing plate and second partition are arranged at described inner barrel along described cylindrical shell cross-wise direction, and the inner space of described housing is divided into the first resonant cavity, the second resonant cavity and the 3rd resonant cavity by described first dividing plate and second partition along air current flow direction;
The first end of described suction tude is connected with described first end cap, second end of described suction tude is communicated with described outlet pipe through described first dividing plate, wherein, the first paragraph of described suction tude is positioned at described first resonant cavity, the second segment of described suction tude is positioned at described second resonant cavity, and the second segment of described suction tude is provided with through hole;
The first end of described outlet pipe is connected with described second end cap, second end of described outlet pipe is communicated with described suction tude through described second partition, wherein, the first paragraph of described outlet pipe is positioned at described 3rd resonant cavity, the second segment of described outlet pipe is positioned at described second resonant cavity, and described steam outlet pipe is provided with through hole;
The first paragraph of described hush tube is positioned at described first resonant cavity, and the second segment of described hush tube is positioned at described second resonant cavity.
In an embodiment of above-mentioned vent systems silencing pot, the length of described hush tube is determined by the frequency range of the Middle and low frequency noise eliminated needed for described vent systems silencing pot.
In an embodiment of above-mentioned vent systems silencing pot, the first end of described suction tude is connected with described first end cap by an expander, and the diameter of described expander is greater than the diameter of described suction tude.
In an embodiment of above-mentioned vent systems silencing pot, the second segment of described outlet pipe is bell-mouth structure of air.
In an embodiment of above-mentioned vent systems silencing pot, the first end of described outlet pipe is connected with described second end cap by an expander, and the diameter of described expander is greater than the diameter of described outlet pipe.
In an embodiment of above-mentioned vent systems silencing pot, the pipeline of described suction tude and described outlet pipe is on same axis.
In an embodiment of above-mentioned vent systems silencing pot, described suction tude and described outlet pipe are formed in one structure.
Second aspect of the present utility model provides a kind of automobile, and comprise the vent systems silencing pot described in above-mentioned any one, described suction tude is communicated with the outlet pipe of described automobile.
The vent systems silencing pot that the utility model provides and automobile, be positioned at described second resonant cavity by the second segment of suction tude, the second segment of suction tude be provided with through hole, and the second segment of hush tube is positioned at described second resonant cavity.Fill compared with the mode of silencing cotton at housing hollow place with adopting in prior art, the technological scheme that the present embodiment provides reduces on-way resistance, reduces oil consumption, also can reduce the noise of medium and low frequency section simultaneously.Fill compared with the mode of silencing cotton at housing hollow place with adopting in prior art, the technological scheme that the present embodiment provides reduces on-way resistance, reduces oil consumption, also can reduce the noise of medium and low frequency section simultaneously.
Accompanying drawing explanation
The schematic diagram of the vent systems silencing pot that Fig. 1 provides for the utility model embodiment;
The generalized section of the vent systems silencing pot that Fig. 2 provides for the utility model embodiment.
Embodiment
The utility model embodiment provides a kind of silencing pot of vent systems, and the silencing pot of this vent systems is applicable to automobile, uses, for improving power performance and the NVH performance of vent systems silencing pot as prime silencing pot.
As shown in Figure 1, the schematic diagram of vent systems silencing pot that provides for the utility model embodiment of Fig. 1; As shown in Figure 2, the generalized section of vent systems silencing pot that provides for the utility model embodiment of Fig. 2.
The vent systems silencing pot 100 of the present embodiment comprises housing, the first dividing plate 107, second partition 108 suction tude 102, outlet pipe 103 and hush tube 104.
Housing comprises cylindrical shell 101, lid is located at the first end cap 105 of described cylindrical shell 101 inlet end and the second end cap 106 of outlet side, it is inner that described first dividing plate 107 and second partition 108 are arranged at described cylindrical shell 101 along described cylindrical shell 101 cross-wise direction, and the inner space of described housing is divided into the first resonant cavity 11, second resonant cavity 22 and the 3rd resonant cavity 33 by described first dividing plate 107 and second partition 108 along air current flow direction; The first end of described suction tude 102 is connected with described first end cap 105, second end of described suction tude 102 is communicated with described outlet pipe 103 through described first dividing plate 107, wherein, the first paragraph 1021 of suction tude 102 is positioned at the first resonant cavity 11, the second segment of suction tude 102 is positioned at the second resonant cavity 22, and the second segment 1022 of suction tude 102 is provided with through hole 44; The first end of described outlet pipe 103 is connected with described second end cap 106, second end of described outlet pipe 103 is communicated with described suction tude 102 through described second partition 108, wherein, the first paragraph 1031 of outlet pipe 103 is positioned at the 3rd resonant cavity 33, the second segment 1032 of outlet pipe 103 is positioned at the second resonant cavity 22, and described steam outlet pipe 103 is provided with through hole 55; The first paragraph 1041 of hush tube 104 is positioned at the first resonant cavity 11, and the second segment 1042 of hush tube 104 is positioned at the second resonant cavity 22.
Wherein, suction tude 102, outlet pipe 103, hush tube 104, first end cap 105, second end cap 106, first dividing plate 107 and second partition 108 are by SUS (Steel Use Stainless, stainless steel) 304 or other equal grade material (such as SUS441, SUS436 etc.) make, adopt SUS304 or SUS441 or SUS436 to make suction tude 102 and outlet pipe 103 through tubulation, punching technology; SUS304 or SUS441 or SUS436 is adopted to make hush tube 104 through tube-making process, the length of hush tube 104 is through calculating, sound wave can eliminate the noise of sound wave medium and low frequency section by the hush tube of this length, reduce the resistance along journey air-flow simultaneously, realize car load power moment of torsion to improve, oil consumption reduces.SUS304 or SUS441 or SUS436 is adopted to make the first end cap 105, second end cap 106, first dividing plate 107 and second partition 108 through stamping process, first end cap 105 first stings technique by end and cylindrical shell 101 is assembled together, then linked together by full weld technique and suction tude 102; Second end cap 106 first stings technique by end and cylindrical shell 101 is assembled together, then linked together by full weld technique and outlet pipe 103; First dividing plate 107 is linked together by spot welding with suction tude 102, hush tube 104; Second partition 108 and outlet pipe 103 are linked together by spot welding.
It should be noted that, when adopting silencing cotton stress release treatment in prior art, need to punch on the first paragraph 1021 of suction tude 102 and the tube wall of second segment 1022, and only for eliminating high-frequency noise.And in the present embodiment, adopt hush pipe 104 to eliminate the noise, and only need to punch on the tube wall of the second segment 1022 of suction tude 102, time saving and energy saving, not only can eliminate high-frequency noise, and can Middle and low frequency noise be eliminated.
The technological scheme that the present embodiment adopts is positioned at described second resonant cavity 22 by the second segment 1022 of suction tude 102, the second segment 1022 of suction tude 102 is provided with through hole, and the second segment 1042 of hush tube 104 is positioned at described second resonant cavity 22.Fill compared with the mode of silencing cotton at housing hollow place with adopting in prior art, the technological scheme that the present embodiment provides reduces on-way resistance, reduces oil consumption, also can reduce the noise of medium and low frequency section simultaneously.
Further, as shown in Figure 2, the length of hush tube 104 is determined by the frequency range of the Middle and low frequency noise eliminated needed for vent systems silencing pot.
As shown in Figure 2, the first end of suction tude 102 is connected with described first end cap 10 by an expander 1023, and the diameter of described expander 1023 is greater than the diameter of described suction tude 102.It should be noted that, because the suction tude of uniform diameter and steam outlet pipe have interference effect at mouth of pipe place to air-flow, usual NVH performance is not good, and exhaust back pressure can be caused to raise, the expander 1023 in the present embodiment can carry out expander by expander technique to suction tude 102 and obtain, and makes the diameter expanding the expander 1023 come be greater than the diameter of suction tude 102, make the air-flow expansion entered from expander 1023, reduce air-flow on-way resistance, reduce exhaust back pressure, promote NVH performance.
Further, the second segment of outlet pipe 103 is bell-mouth structure of air 1032.Because exhaust airstream enters the process of outlet pipe 103 from suction tude 102, bell-mouth structure of air 1032 can play the effect of rectification, and uniform exhaust airstream can reduce exhaust back pressure, improves vehicle power moment of torsion, reduces oil consumption.
Further, the first end of described outlet pipe 103 is connected with described second end cap 106 by an expander 1031, and the diameter of described expander 1033 is greater than the diameter of described outlet pipe 103.It should be noted that, the expander 1033 of outlet pipe 103 can carry out expander by expander technique to outlet pipe 103 and obtain, and makes the diameter expanding the expander 1033 come be greater than the diameter of outlet pipe 103, makes the air-flow expansion sent into from outlet pipe 103, reduce air-flow on-way resistance, reduce exhaust back pressure.
Further, the pipeline of suction tude 102 and the pipeline of outlet pipe 103 are on same axis.Be in suction tude 102 on same axis and outlet pipe 103 can ensure the unobstructed unification of air-flow path, reduce on-way resistance, thus reduce exhaust back pressure, improve vehicle power moment of torsion, reduce oil consumption.
Further, suction tude 102 and outlet pipe 103 are formed in one structure.Tubulation, expander technique acquisition expander 1023 and expander 1033 is carried out respectively by suction tude 102, outlet pipe 103.
The utility model embodiment two also provides a kind of automobile, and automobile comprises the vent systems silencing pot mentioned in above-mentioned any embodiment, and described suction tude 102 is communicated with the outlet pipe of described automobile.
The automobile that the present embodiment provides, apply above-mentioned vent systems silencing pot, be positioned at described second resonant cavity 22 by the second segment 1022 of suction tude 102, the second segment 1022 of suction tude 102 is provided with through hole, and the second segment 1042 of hush tube 104 is positioned at described second resonant cavity 22.Fill compared with the mode of silencing cotton at housing hollow place with adopting in prior art, the technological scheme that the present embodiment provides reduces on-way resistance, reduces oil consumption, also can reduce the noise of medium and low frequency section simultaneously.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristics; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment's technological scheme of the utility model.
Claims (8)
1. a vent systems silencing pot, is characterized in that, comprising: housing, the first dividing plate, second partition, suction tude, outlet pipe and hush tube;
Wherein, described housing comprises: cylindrical shell, lid are located at the first end cap of described cylindrical shell inlet end and the second end cap of outlet side;
Described first dividing plate and second partition are arranged at described inner barrel along described cylindrical shell cross-wise direction, and the inner space of described housing is divided into the first resonant cavity, the second resonant cavity and the 3rd resonant cavity by described first dividing plate and second partition along air current flow direction;
The first end of described suction tude is connected with described first end cap, second end of described suction tude is communicated with described outlet pipe through described first dividing plate, wherein, the first paragraph of described suction tude is positioned at described first resonant cavity, the second segment of described suction tude is positioned at described second resonant cavity, and the second segment of described suction tude is provided with through hole;
The first end of described outlet pipe is connected with described second end cap, second end of described outlet pipe is communicated with described suction tude through described second partition, wherein, the first paragraph of described outlet pipe is positioned at described 3rd resonant cavity, the second segment of described outlet pipe is positioned at described second resonant cavity, and described steam outlet pipe is provided with through hole;
The first paragraph of described hush tube is positioned at described first resonant cavity, and the second segment of described hush tube is positioned at described second resonant cavity.
2. vent systems silencing pot according to claim 1, is characterized in that, the length of described hush tube is determined by the frequency range of the Middle and low frequency noise eliminated needed for described vent systems silencing pot.
3. vent systems silencing pot according to claim 1 and 2, is characterized in that, the first end of described suction tude is connected with described first end cap by an expander, and the diameter of described expander is greater than the diameter of described suction tude.
4. vent systems silencing pot according to claim 1 and 2, is characterized in that, the second segment of described outlet pipe is bell-mouth structure of air.
5. vent systems silencing pot according to claim 1 and 2, is characterized in that, the first end of described outlet pipe is connected with described second end cap by an expander, and the diameter of described expander is greater than the diameter of described outlet pipe.
6. vent systems silencing pot according to claim 1 and 2, is characterized in that, the pipeline of described suction tude and described outlet pipe is on same axis.
7. vent systems silencing pot according to claim 1 and 2, is characterized in that, described suction tude and described outlet pipe are formed in one structure.
8. an automobile, is characterized in that, comprise the vent systems silencing pot according to any one of claim 1 ~ 7, described suction tude is communicated with the outlet pipe of described automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420502573.XU CN204099002U (en) | 2014-09-02 | 2014-09-02 | Vent systems silencing pot and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420502573.XU CN204099002U (en) | 2014-09-02 | 2014-09-02 | Vent systems silencing pot and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204099002U true CN204099002U (en) | 2015-01-14 |
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ID=52267438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420502573.XU Expired - Fee Related CN204099002U (en) | 2014-09-02 | 2014-09-02 | Vent systems silencing pot and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204099002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594993A (en) * | 2015-01-29 | 2015-05-06 | 合肥汇凌汽车零部件有限公司 | Silencer for internal combustion engine of light truck |
-
2014
- 2014-09-02 CN CN201420502573.XU patent/CN204099002U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594993A (en) * | 2015-01-29 | 2015-05-06 | 合肥汇凌汽车零部件有限公司 | Silencer for internal combustion engine of light truck |
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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 |
Granted publication date: 20150114 |
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| CF01 | Termination of patent right due to non-payment of annual fee |