CN204163897U - For outlet pipe and the engine aspirating system of air-strainer - Google Patents
For outlet pipe and the engine aspirating system of air-strainer Download PDFInfo
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- CN204163897U CN204163897U CN201420470885.7U CN201420470885U CN204163897U CN 204163897 U CN204163897 U CN 204163897U CN 201420470885 U CN201420470885 U CN 201420470885U CN 204163897 U CN204163897 U CN 204163897U
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- outlet pipe
- air
- strainer
- cylindrical cavities
- cylindrical
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- 238000010521 absorption reaction Methods 0.000 claims abstract description 14
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010943 off-gassing Methods 0.000 description 1
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Exhaust Silencers (AREA)
Abstract
A kind of outlet pipe (2) being used for air-strainer (1), comprise the antinoise element (3) being connected to described outlet pipe (2), wherein, each antinoise element (3) comprises at least two cylindrical cavities, an end of each described cylindrical cavity is communicated to described outlet pipe (2), each described cylindrical cavity has a sound absorption crest frequency, and described at least two cylindrical cavities sound absorption crest frequency is different.Compared with the outlet pipe of the air-strainer of prior art, the outlet pipe for air-strainer of the present utility model can reduce multifrequency noise.
Description
Technical field
The utility model relates to engine aspirating system field, particularly relates to a kind of outlet pipe for air-strainer.
Background technique
The air-strainer of motor is the device that primary responsibility removes the granulometric impurity in air.In use there is the problem that noise exceeds standard in existing motor, and a dominant noise source is exactly air-strainer.When engine charge, the periodicity opening and closing due to intake valve cause cavity pressure fluctuate and high velocity air by very high turbulence noise can be produced during air-strainer, therefore the noise level of air-strainer position is relatively high.So people begin one's study the antinoise problem of air-strainer.The existing air-strainer with antinoise element only can reduce the noise of a certain characteristic frequency.And noise is multifrequency in reality, so need to study a kind of antinoise element can removing multifrequency noise.
Model utility content
Based on this, be necessary for the problems referred to above, provide a kind of for air-strainer, there is antinoise element and the outlet pipe of multifrequency noise can be removed.
A kind of outlet pipe for air-strainer, this outlet pipe comprises the antinoise element being connected to this outlet pipe, wherein, described antinoise element comprises at least two cylindrical cavities, an end of each cylindrical cavity is communicated to described outlet pipe, each described cylindrical cavity has a sound absorption crest frequency, and the sound absorption crest frequency of described at least two cylindrical cavities is different.
Wherein in an embodiment, described at least two cylindrical cavities have identical diameter, but have variant length.
Wherein in an embodiment, described at least two cylindrical cavities are three cylindrical cavities.
Wherein in an embodiment, described at least two cylindrical cavities are four or more cylindrical cavity.
Wherein in an embodiment, described at least two cylindrical cavities are arranged side by side.
Wherein in an embodiment, described at least two cylindrical cavities, or to be arranged around described outlet pipe in divergent shape along the bearing of trend scattering device of described steam outlet pipe on described outlet pipe.
Wherein in an embodiment, described cylindrical cavity is quarter-wave resonance device.
Above-mentioned for air-strainer, the outlet pipe with antinoise element can reduce multifrequency noise.
In addition, according to another aspect of the present utility model, a kind of engine aspirating system is also provided, the outlet pipe for air-strainer that described gas handling system is above-mentioned.This gas handling system can reduce the multifrequency noise in motor car engine.
Accompanying drawing explanation
Fig. 1 be according to the utility model embodiment, the schematic diagram of the air-strainer that is installed with the suction tude with antinoise element of the present invention;
Fig. 2 be according to the utility model embodiment, with the schematic diagram of the outlet pipe of antinoise element;
Fig. 3 be according to the utility model embodiment, with the partial sectional view of the outlet pipe of antinoise element.
Embodiment
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in detail embodiment of the present utility model below in conjunction with accompanying drawing.Set forth a lot of detail in the following description so that fully understand the utility model.But the utility model can be much different from alternate manner described here to implement, those skilled in the art can when doing similar improvement without prejudice to when the utility model intension, and therefore the utility model is by the restriction of following public concrete enforcement.
As Figure 1-3, a kind of outlet pipe 2 for air-strainer 1 comprises the antinoise element 3 being connected to this outlet pipe 2, this antinoise element 3 comprises three cylindrical cavities 5,6,7, and one end of each cylindrical cavity is closed, and the other end is communicated to described outlet pipe 2.Wherein, each described cylindrical cavity has a sound absorption crest frequency, and it is different that described three cylindrical cavities 5,6,7 have sound absorption crest frequency, and e.g., described cylindrical cavity can be quarter-wave resonance device.
In the illustrated embodiment, three cylindrical cavities 5,6,7 preferably have identical diameter, but have different length; By making described cylindrical cavity respectively have different length, can make it have different sound absorption crest frequencies, wherein length is larger, and corresponding crest frequency is lower.Concrete, described three cylindrical cavities 5,6,7 are arranged side by side at the same side of this outlet pipe 2 successively along the outgassing direction of outlet pipe 2, wherein by arranging the length of first cylindrical cavity 5, making it have sound absorption crest frequency and being about 300Hz; By arranging the length of second cylindrical cavity 6, making it have sound absorption crest frequency and being about 500Hz; By arranging the length of the 3rd cylindrical cavity 7, making it have sound absorption crest frequency and being about 700Hz; Because frequency noise main in engine air inlet tube is above three kinds of frequencies, the antinoise element 3 therefore arranged according to aforesaid way can reduce the noise of engine aspirating system effectively.In the illustrated embodiment, three cylindrical cavities 5,6,7 are coupled together by attachment portion 8, and be all positioned at the same side of outlet pipe 2, the same side like this three cylindrical cavities being disposed side by side on outlet pipe can make structure comparison compact, the space taken is smaller, manufactures and installs all more convenient.But according to the needs of spatial design, these three cylindrical cavities 5,6,7 also along the bearing of trend scattering device of described steam outlet pipe on outlet pipe 2, or can be arranged around described outlet pipe in divergent shape.
In the present embodiment, for reducing manufacture cost, described antinoise element 3 only can also have two cylindrical cavities that diameter is identical, length is different.As made a cylindrical cavity by configuration, there is sound absorption crest frequency and be about 300Hz, another cylindrical cavity has sound absorption crest frequency and is about 700Hz, this outlet pipe can reduce the noise of two kinds of frequencies, be applicable to noise reduction demand higher than common outlet pipe, but cost requirement higher, be not suitable for applying the situation making meticulousr antinoise element.
In the embodiment improved further above-described embodiment, described antinoise element 3 also can have a four or more cylindrical cavity.When described antinoise element 3 has four or more cylindrical cavity, the length of these cylindrical cavities can be all different each other, and the length that also can be set to some of them cylindrical cavity is identical but different from the length of other cylindrical cavities.This antinoise element with a four or more cylindrical cavity can reduce the noise of multi-frequency, and noise reduction is splendid, is suitable for being applied in the very high occasion of noise reduction demand, such as, be applied to the outlet pipe of the engine air filter of high-grade sport car.
In use, as shown in Figure 1, in the gas handling system of motor car engine, the suction port of air-strainer 1 is connected with admission line 4; Outlet pipe 2 one end is connected to the air outlet of air-strainer 1, and its other end is connected to car engine air admittance mouth.Like this, air enters air-strainer 1 from admission line 4 and filters, and then enters motor through outlet pipe 2.Because outlet pipe 2 is provided with antinoise element 3, the plural cylindrical cavity that this antinoise element 3 has can absorb the noise of two or more frequency, thus plays the effect reducing multifrequency noise.
The above embodiment only have expressed several mode of execution of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (8)
1. the outlet pipe for air-strainer, this outlet pipe comprises the antinoise element being connected to this outlet pipe, it is characterized in that, described antinoise element comprises at least two cylindrical cavities, an end of each cylindrical cavity is communicated to described outlet pipe, each described cylindrical cavity has a sound absorption crest frequency, and the sound absorption crest frequency of described at least two cylindrical cavities is different.
2. outlet pipe according to claim 1, is characterized in that, described at least two cylindrical cavities have identical diameter, but have variant length.
3. outlet pipe according to claim 1, is characterized in that, described at least two cylindrical cavities are three cylindrical cavities.
4. outlet pipe according to claim 1, is characterized in that, described at least two cylindrical cavities are four or more cylindrical cavity.
5. outlet pipe according to claim 1, is characterized in that, described at least two cylindrical cavities are arranged side by side.
6. outlet pipe according to claim 1, is characterized in that, described at least two cylindrical cavities, or to be arranged around described outlet pipe in divergent shape along the bearing of trend scattering device of described steam outlet pipe on described outlet pipe.
7. outlet pipe according to claim 1, is characterized in that, described cylindrical cavity is quarter-wave resonance device.
8. an engine aspirating system, is characterized in that, described gas handling system comprises the outlet pipe for air-strainer as described in any one of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420470885.7U CN204163897U (en) | 2014-08-20 | 2014-08-20 | For outlet pipe and the engine aspirating system of air-strainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420470885.7U CN204163897U (en) | 2014-08-20 | 2014-08-20 | For outlet pipe and the engine aspirating system of air-strainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204163897U true CN204163897U (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420470885.7U Active CN204163897U (en) | 2014-08-20 | 2014-08-20 | For outlet pipe and the engine aspirating system of air-strainer |
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| CN (1) | CN204163897U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443284A (en) * | 2015-12-18 | 2016-03-30 | 力帆实业(集团)股份有限公司 | Engine and air inlet hose thereof and car |
| CN106704050A (en) * | 2015-07-27 | 2017-05-24 | 长城汽车股份有限公司 | Air filter air inlet pipe |
| CN110056459A (en) * | 2019-05-31 | 2019-07-26 | 安徽江淮汽车集团股份有限公司 | Air cleaner and hybrid vehicle |
-
2014
- 2014-08-20 CN CN201420470885.7U patent/CN204163897U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704050A (en) * | 2015-07-27 | 2017-05-24 | 长城汽车股份有限公司 | Air filter air inlet pipe |
| CN106704050B (en) * | 2015-07-27 | 2019-03-29 | 长城汽车股份有限公司 | Air-cleaner snorkel road |
| CN105443284A (en) * | 2015-12-18 | 2016-03-30 | 力帆实业(集团)股份有限公司 | Engine and air inlet hose thereof and car |
| CN110056459A (en) * | 2019-05-31 | 2019-07-26 | 安徽江淮汽车集团股份有限公司 | Air cleaner and hybrid vehicle |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |