CN207093251U - A kind of pipeline structure for being used to eliminate discouraged noise in pipeline - Google Patents
A kind of pipeline structure for being used to eliminate discouraged noise in pipeline Download PDFInfo
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- CN207093251U CN207093251U CN201721024290.9U CN201721024290U CN207093251U CN 207093251 U CN207093251 U CN 207093251U CN 201721024290 U CN201721024290 U CN 201721024290U CN 207093251 U CN207093251 U CN 207093251U
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- pipeline
- connecting tube
- noise
- discouraged
- tube
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Abstract
The utility model provides a kind of pipeline structure for being used to eliminate discouraged noise in pipeline, the pipeline structure is provided with connecting tube, the both ends of the connecting tube are connected with the discouraged pipeline of automobile, noise-reducing structure is provided with connecting tube, the noise-reducing structure includes central tube, and the dividing plate of centrally disposed pipe front end, the dividing plate block the opening of the central tube front end；The external diameter of the central tube is less than the internal diameter of connecting tube, if the perforation that capable person's tube wall runs through is distributed with the tube wall of the central tube, the outer rim of the plate front end end face is provided with a circle side wall and the external diameter of the circle side wall and the internal diameter of connecting tube are suitable, and the dividing plate is provided through an at least through hole for two end face.It is provided by the utility model simple in construction, it is easy for installation, it is not necessary to which that existing structure is made a change, it is only necessary to which that muffler, which is connected in discouraged pipeline, can play good erasure effect.
Description
Technical field
It the utility model is related to auto parts manufacturing field, and in particular to be used to eliminate the noise that in pipeline loses heart to a kind of
Pipeline structure.
Background technology
In the engine with supercharger course of work, the moment of gas pedal is unclamped, due to the lasting high speed rotation of compressor, high pressure
The pressure of side continues to increase, and is opened when relief valve is in accelerator releasing, and the gas of excess is discharged into by the sebific duct of a bypass
Low-pressure side, gases at high pressure are that can produce the very wide high-frequency noise of frequency range by relief valve.This partial noise is opened from relief valve
Beginning propagates along pipeline, enters gas handling system by sebific duct, is then radiated by the air inlet of admission line, so as to be formed
Noise.
Solution universal at present is to increase muffler in gas handling system to weaken discouraged sound, but is made an uproar due to losing heart
Acoustic propagation path is longer, it is easy to just radiated in the path of propagation, and discouraged noise frequency is very wide and energy is larger,
It is difficult to thoroughly eliminated with muffler in gas handling system, the sound quality and comfortableness that have influence on in-car that can be very big.
Based on above mentioned problem, the utility model comes desirable to provide one kind on the premise of the original gas handling system of automobile is not changed
Increase a kind of silencing means, to eliminate the noise in the discouraged pipeline of automobile as far as possible.
Utility model content
The utility model provides a kind of pipeline structure for being used to eliminate discouraged noise in pipeline, loses heart to solve automobile
Noise problem in pipeline, concrete scheme are as follows：
The pipeline structure is provided with connecting tube, and the both ends of the connecting tube are connected with the discouraged pipeline of automobile, set in connecting tube
Noise-reducing structure is equipped with, the noise-reducing structure includes central tube, and the dividing plate of centrally disposed pipe front end, and the dividing plate is by described in
The opening of central tube front end is blocked；
The external diameter of the central tube is less than the internal diameter of connecting tube, if capable person's tube wall is distributed with the tube wall of the central tube
The perforation run through,
The outer rim of the plate front end end face is provided with a circle side wall and the external diameter and the internal diameter phase of connecting tube of the circle side wall
When the dividing plate is provided through an at least through hole for two end face.
Further, the pipeline structure is arranged on the discouraged pipeline of air inlet system of supercharger engine, positioned at gas bleeder valve
Downstream and close gas bleeder valve.
Further, the dividing plate is located at the one end of the central tube away from the gas bleeder valve.
Further, the dividing plate blocks the opening of the central tube front end, and the gas of gas bleeder valve discharge enters center
Pipe in and by the perforation on tube wall be circulated to the central tube and it is described connect inside pipe wall between cavity in, and by it is described every
The through hole outflow of plate.
Further, the connecting tube is provided at both ends with connection sleeve pipe, and the external diameter of the connection sleeve pipe is less than connecting tube
External diameter, pipeline structure is connected on discouraged pipeline by connection sleeve pipe.
Further, the connection sleeve pipe close to one end of the gas bleeder valve is arranged on the connecting tube by an installation sheet
On, and central tube is fixed in the connecting tube by the installation sheet；
The connection sleeve pipe of the other end is the integrated design with the connecting tube.
Further, it is provided with sealing ring in the side wall of the dividing plate.
Further, some gap are offered in the side wall of the dividing plate.
Compared with prior art, the present embodiment has advantages below：
1st, it is simple in construction, it is easy for installation, it is not necessary to which that existing structure is made a change, it is only necessary to be connected on muffler discouraged
In pipeline；
2nd, significant effect, noise reduction pipeline structure provided by the utility model, best results are mounted directly on pipeline losing heart.
3rd, strong applicability, there is good effect for the discouraged sound of various frequencies.
Brief description of the drawings
, below will be to embodiment or prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The required accompanying drawing used is briefly described in description, it should be apparent that, drawings in the following description are only that this practicality is new
Some embodiments of type, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of sectional view for being used to eliminate the pipeline structure of discouraged noise in pipeline provided by the utility model；
Fig. 2 is the assembling schematic diagram of pipeline structure provided by the utility model；
Fig. 3 is the noise reduction schematic diagram of pipeline structure provided by the utility model.
Embodiment
In the following description, a large amount of concrete details are given more thoroughly to manage the utility model to provide
Solution.It is, however, obvious to a person skilled in the art that the utility model can be without one or more of these thin
Save and be carried out.In other examples, in order to avoid obscuring with the utility model, for more well known in the art
Technical characteristic is not described.
In order to thoroughly understand the utility model, detailed step and detailed structure will be proposed in following description,
To explain the technical solution of the utility model.Preferred embodiment of the present utility model is described in detail as follows, but except these
Outside being described in detail, the utility model can also have other embodiment.
The utility model provides a kind of pipeline structure for being used to eliminate discouraged noise in pipeline, and the pipeline structure, which is provided with, to be connected
Adapter 1, the both ends of the connecting tube 1 are connected with discouraged pipeline, noise-reducing structure are provided with connecting tube 1, during noise-reducing structure includes
Heart pipe 10, and the dividing plate 20 of the front end of centrally disposed pipe 10, dividing plate 20 block the opening of the front end of central tube 10；
The external diameter of central tube 10 is less than the internal diameter of connecting tube 1, is passed through if capable person's tube wall is distributed with the tube wall of central tube 10
The perforation 10a worn,
The outer rim of the front end surface of dividing plate 20 is provided with a circle side wall and the external diameter and the internal diameter phase of connecting tube 1 of the circle side wall
When dividing plate 20 is provided through an at least through hole 20a for two end face.Wherein, noise-reducing structure can use metal, plastics or
The combination of both persons.
In the optional embodiment of the utility model one, pipeline structure is arranged on the gas outlet of air inlet system of supercharger engine
Lu Shang, positioned at gas bleeder valve downstream and close to gas bleeder valve.
In the optional embodiment of the utility model one, dividing plate 20 is located at the one end of central tube 10 away from gas bleeder valve, that is, schemes
Shown in connection gas bleeder valve on the right side of structure.After the gas of gas bleeder valve discharge enters in central tube, circulated by the perforation 10a on tube wall
In to the cavity between central tube 10 and the inwall of connecting tube 1 (i.e. cavity 1 in figure), and flowed out by the through hole of dividing plate 20.
In the optional embodiment of the utility model one, connecting tube 1 is provided at both ends with connection sleeve pipe, the external diameter of connection sleeve pipe
Less than the external diameter of connecting tube 1, pipeline structure is connected on discouraged pipeline by connection sleeve pipe.Further, close to gas bleeder valve
The connection sleeve pipe 3 of one end be arranged on by an installation sheet 5 in connecting tube, and central tube 10 is fixed on connection by the installation sheet 5
In pipe；Connection sleeve pipe 2 and the connecting tube of the other end are the integrated design.Further, the outer rim of installation sheet 5 is provided with screwed hole,
Accordingly, the one end of connecting tube 1 is provided with the screw thread hole seat 4 corresponding with the outer rim screw thread hole site of installation sheet 5, is fastened by screw
Mode installation sheet 5 is arranged on the one end of connecting tube 1.It should be noted that it is only by the way of piece 5 is fixedly mounted in screw
A kind of optional embodiment, in specific application, we, which can also select, the various sides such as connects and fixes, welds, being screwed
End cap (installation sheet 5 i.e. with connection sleeve pipe 3) is fixed formula, will not be described here.
In the optional embodiment of the utility model one, sealing ring (not shown) is provided with the side wall of dividing plate 20,
On the one hand the stability that noise-reducing structure is filled in connecting tube 1 can be improved by the sealing ring, on the other hand caused gas both
It can be circulated by the through hole of dividing plate 20 so that the through hole that the gas of cavity 1 is only capable of opening up by dividing plate 20 enters cavity 2, ensures
De-noising effect.
In the optional embodiment of the utility model one, some gap 20b are offered in the side wall of dividing plate 20, so as to
The weight of noise-reducing structure is reduced, while the consumption of manufacture material can also be reduced.
Meanwhile in order to further improve erasure effect, we can also be in the inside and outside wall and/or connecting tube 1 of central tube
Inwall table full coat cover one layer of quieter material, or its surface is arranged to rough projection, further to improve noise reduction
Effect.
It should be noted that the perforation opened up on central tube tube wall is not limited only to the circular hole shown in figure, in reality
In the application on border, perforation can be rectangle (such as square opening or strip hole), polygon and other irregular Kong Yike, together
When, perforation is evenly distributed on tube wall surface.In addition, the end face of dividing plate 20 is provided with multiple separate through holes around its axle center
20a.In addition, the through hole that dividing plate 20 opens up is also not limited to illustrate shape.
Shown in reference picture 3, after high pressure draught that gas bleeder valve releases is by the muffler, discouraged noise is eliminated：Gas
Pass through from the perforation in center tube wall face, expanded in cavity 1, flow velocity reduces；Due to the utility model in central tube front end also
There is provided the dividing plate 20 having with through hole 20a so that gas passes through the through hole 20a on dividing plate 20 to enter cavity 2, high pressure from cavity 1
Air-flow is buffered, and energy dropoff, pneumatic noise weakens therewith, so as to play de-noising effect.
Noise-cancelling theory of the present utility model is using the appropriately combined of chamber and pipe, to reach two kinds of effects to eliminate the noise：One
It is to make to reflect back to Sounnd source direction along the sound wave of pipe transmmision using pipeline section mutation (i.e. the change of acoustic reactance), so that sound
Original place can be reflected back；Second, using the reflection at several interfaces, original first sound wave propagated forward is set to be returned to origin, and again
Secondary turn back is propagated forward, and the point converges with second sound wave propagated forward not yet reflected, and both phases on amplitude
Deng the odd-multiple of poor 180 degree in phase, being offset so as to interfere with each other.Muffler (Muffler) be prevent sound transmission and
A kind of device for allowing air-flow to pass through, it is the important measures for eliminating air power noise.
Compared with prior art, the present embodiment has advantages below：
1st, it is simple in construction, it is easy for installation, it is not necessary to which that existing structure is made a change, it is only necessary to be connected on muffler discouraged
In pipeline；
2nd, significant effect, noise reduction pipeline structure provided by the utility model, best results are mounted directly on pipeline losing heart.
3rd, strong applicability, there is good effect for the discouraged sound of various frequencies.
Preferred embodiment of the present utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, wherein the equipment and structure be not described in detail to the greatest extent are construed as using the common side in this area
Formula is practiced；Any those skilled in the art, in the case where not departing from technical solutions of the utility model ambit, all may be used
Technical solutions of the utility model are made with many possible changes and modifications using the methods and technical content of the disclosure above, or is repaiied
The equivalent embodiment of equivalent variations is changed to, this has no effect on substantive content of the present utility model.Therefore, it is every without departing from this practicality
The content of new technique scheme, according to the technical essence of the utility model to any simple modification made for any of the above embodiments, etc.
With change and modification, still fall within technical solutions of the utility model protection in the range of.
Claims (7)
1. a kind of pipeline structure for being used to eliminate discouraged noise in pipeline, it is characterised in that the pipeline structure is provided with connecting tube, should
The both ends of connecting tube are connected with the discouraged pipeline of automobile, noise-reducing structure are provided with connecting tube, during the noise-reducing structure includes
Heart pipe, and the dividing plate of centrally disposed pipe front end, the dividing plate block the opening of the central tube front end；
The external diameter of the central tube is less than the internal diameter of connecting tube, runs through if capable person's tube wall is distributed with the tube wall of the central tube
Perforation,
The outer rim of the plate front end end face is provided with a circle side wall and the external diameter of the circle side wall and the internal diameter of connecting tube are suitable, institute
State at least through hole that dividing plate is provided through two end face.
2. the pipeline structure as claimed in claim 1 for being used to eliminate discouraged noise in pipeline, it is characterised in that the pipeline knot
Structure is arranged on the discouraged pipeline of air inlet system of supercharger engine, positioned at gas bleeder valve downstream and close to gas bleeder valve.
3. the pipeline structure as claimed in claim 2 for being used to eliminate discouraged noise in pipeline, it is characterised in that the dividing plate position
In the one end of the central tube away from the gas bleeder valve.
4. the pipeline structure as claimed in claim 1 for being used to eliminate discouraged noise in pipeline, it is characterised in that the connecting tube
It is provided at both ends with connection sleeve pipe, the external diameter of the connection sleeve pipe is less than the external diameter of connecting tube, by connection sleeve pipe by pipeline structure
It is connected on discouraged pipeline.
5. the pipeline structure as claimed in claim 4 for being used to eliminate discouraged noise in pipeline, it is characterised in that let out close to described
The connection sleeve pipe of one end of air valve is arranged in the connecting tube by an installation sheet, and central tube is fixed on institute by the installation sheet
State in connecting tube；
The connection sleeve pipe of the other end is the integrated design with the connecting tube.
6. the pipeline structure as claimed in claim 1 for being used to eliminate discouraged noise in pipeline, it is characterised in that the dividing plate
Sealing ring is provided with side wall.
7. the pipeline structure as claimed in claim 1 for being used to eliminate discouraged noise in pipeline, it is characterised in that the dividing plate
Some gap are offered in side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721024290.9U CN207093251U (en) | 2017-08-16 | 2017-08-16 | A kind of pipeline structure for being used to eliminate discouraged noise in pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721024290.9U CN207093251U (en) | 2017-08-16 | 2017-08-16 | A kind of pipeline structure for being used to eliminate discouraged noise in pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207093251U true CN207093251U (en) | 2018-03-13 |
Family
ID=61541388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721024290.9U Active CN207093251U (en) | 2017-08-16 | 2017-08-16 | A kind of pipeline structure for being used to eliminate discouraged noise in pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207093251U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366594A (en) * | 2017-08-16 | 2017-11-21 | 天津大创科技有限公司 | A kind of pipeline structure for being used to eliminate discouraged noise in pipeline |
| CN109630255A (en) * | 2019-01-31 | 2019-04-16 | 重庆长安汽车股份有限公司 | A kind of gas outlet of turbocharger and the connection structure of air filter discharge pipe |
-
2017
- 2017-08-16 CN CN201721024290.9U patent/CN207093251U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366594A (en) * | 2017-08-16 | 2017-11-21 | 天津大创科技有限公司 | A kind of pipeline structure for being used to eliminate discouraged noise in pipeline |
| CN107366594B (en) * | 2017-08-16 | 2023-10-31 | 天津大创科技有限公司 | Pipeline structure for eliminating air leakage noise in pipeline |
| CN109630255A (en) * | 2019-01-31 | 2019-04-16 | 重庆长安汽车股份有限公司 | A kind of gas outlet of turbocharger and the connection structure of air filter discharge pipe |
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| GR01 | Patent grant |