CN205533079U - Automobile -used inflating pump special reactive muffler that admits air - Google Patents
Automobile -used inflating pump special reactive muffler that admits air Download PDFInfo
- Publication number
- CN205533079U CN205533079U CN201620075052.XU CN201620075052U CN205533079U CN 205533079 U CN205533079 U CN 205533079U CN 201620075052 U CN201620075052 U CN 201620075052U CN 205533079 U CN205533079 U CN 205533079U
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- CN
- China
- Prior art keywords
- automobile
- inflating pump
- air inlet
- reactive muffler
- pump air
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses an automobile -used inflating pump special reactive muffler that admits air, it includes the tubular metal resonator, the tubular metal resonator intussuseption is filled with the porous filler that is formed by the porous net form material system of rolling up. The utility model discloses this kind of silencer size is gently little, low cost and easy to assemble, and acoustic energy, change sound wave propagation direction are cut apart to the incident angle of the difference that its utilize the flat filament knitting to curl aperture that the back formed demonstrates to messenger's sound wave can reflect in intraductal production, interfere, offset the phenomenon realizes noise suppression effect.
Description
Technical field
The utility model relates to a kind of silencer, a kind of automobile-used special reactive muffler of inflating pump air inlet.
Background technology
Along with the development of bus industry, the requirement to numbers of seats and distance between seats is more and more higher.Car load producer is in order to improve product competitiveness, it has to the size of a recompression back wall covering post, the tracheae caliber that result in the engine overhead air-suction state originally walking pipe in covering post diminishes and cannot meet the requirement of air input of engine by air.Waist air-suction state is used in order to solve this problem, while solving interior space, also the height reduction of intake system noise outlet sound mouth, this have impact on the quality of car load to a certain extent, and the extraneous source of the gas of inflating pump distance closer to, the noise that it produces sounds and becoming apparent from, and sends " rub-a-dub rub-a-dub " sound of similar tum, is the noise that have to eliminate.Inflating pump noise has obvious medium and low frequency feature, it is almost consistent with the mechanism of production of engine aspirating system noise, can be used for processing the normal silencer mode of engine aspirating system in theory to may serve to process the noise that inflating pump produces, as expanded silencer, the reactive muffler such as resonance exhaust silencer and offset silencer.
At reference after home and abroad advanced technology experience, expansion cavate silencer is used to cut down the impact of this noise at present in relevant vehicle, but the cost of expansion cavate silencer is the highest relative to from the point of view of inflating pump gas handling system, overall cost ceiling for balanced engine gas handling system, it has to from the most cost-effective then realize the soundproof effect of inflating pump system.Low and middle-end passenger vehicle cost pressure is bigger, so the inflating pump gas handling system in, on low side car does not install silencer.
The feature of the Special-purpose silencer used in presently relevant vehicle: 1) there is bigger expansion cavity (being equivalent to expand silencer)；2) certain length is had to insert silencer into and out of tracheae internal (being equivalent to 1/4 wavelength tube)；3) there is micropore resonant cavity (being equivalent to resonance exhaust silencer).It it is a kind of silencer that combined by several noise-cancelling theorys, for the exploitation of inflating pump noise frequency feature.Can preferably eliminate the low-frequency noise that inflating pump produces.
Silencer is sealed in inflating pump air inlet pipeline and uses, need to design special position and install, also have impact on the trend of inflating pump flexible pipe, supervened a lot of special sebific duct therewith, it is not necessary in add many extra costs.Defect on these designs, installation and cost limits the range of application of this type of silencer, has also delayed design and the productive temp of car load.
The reactive muffler that home and abroad main flow bus coating producer uses in inflating pump gas handling system at present, the structure of this silencer is complicated, cost is high, volume is big, installation difficulty, there is the biggest difficulty in terms of subsystem cost control and searching reasonable installation space.Cannot use on a large scale in high-, middle-and low-end complete series vehicle.
In order to overcome with silencer cost, design and installation and produce on defect, it is necessary for finding or develop a kind of silencer with low cost, that be easily installed.
Utility model content
The utility model purpose is: for the problems referred to above, and a kind of build of proposition is the least, with low cost and conveniently installs the automobile-used special reactive muffler of inflating pump air inlet.
The technical solution of the utility model is: a kind of automobile-used special reactive muffler of inflating pump air inlet, it includes metal tube, is filled with the porous packing rolled by holey material in described metal tube.
The utility model, on the basis of technique scheme, also includes following preferred version:
Described holey material is rolled at least one volume.
Described holey material is by the fabric of flat filament braiding.
Described flat filament is stainless steel flat wire or high density polyethylene (HDPE) flat filament.
The model of described high density polyethylene (HDPE) is HDPE (5000s).
The mesh number of described fabric is every square centimeter 8～12 mesh.
Described metal tube is copper alloy tube or stainless steel tube, its a diameter of 25mm.
Form on the inner tubal wall of described metal tube be positioned at the axial two ends of described porous packing, radially convex, with the internal projection stoping described porous packing to depart from.
The cambered outwards outer lug in footpath is formed on the outer tube wall at described metal tube two ends.
The utility model has the advantages that: the utility model.
1, the different incident angle that after utilizing the curling of flat filament braid, each aperture of formation presents, splits acoustic energy, changes Acoustic Wave Propagation direction, so that sound wave generation reflection, interference, offseting phenomenon can realize soundproof effect in pipe.
2, incident acoustic wave is after one end enters silencer, flow through porous packing muffler section and be divided into the different sub-sound wave in countless stock direction by a large amount of apertures, after sub-sound wave experienced by collision reflection many times, break-in interference inside muffler section and reversely offsets, the acoustic energy finally being transmissive to out has been obtained for slackening greatly, it is achieved thereby that the purpose eliminated the noise.
Accompanying drawing explanation
Fig. 1 is the structural representation of this automobile-used special reactive muffler of inflating pump air inlet of the utility model embodiment.
Wherein: 1-metal tube, 1a-internal projection, 1b-outer lug, 2-porous packing.
Detailed description of the invention
Fig. 1 shows a specific embodiment of this automobile-used special reactive muffler of inflating pump air inlet of the utility model, and it includes a metal tube 1, and this metal tube 1 is pipe, and is filled with the porous packing 2 rolled by holey material in it.
In this example, described holey material is rolled into many and rolls up, generally at least volume.
And, described holey material is that the mesh number of this fabric is preferably every square centimeter 8～12 mesh by the fabric of flat filament (the most flat filamentary material) braiding.When implementing, the braid of drum is first knit out with flat filament, then the cylindrical shape braid knit out radially is flattened and form double-layer porous braided material, then be rolled into porous packing 2 with the specification of every 4-6mm mono-circle, in porous packing 2 is filled in metal tube 1, form muffler section.
Described flat filament is preferably selected extremely strong wearability, good impact resistance, has the material of extremely strong ageing-resistant performance under normal temperature state.According to these standards aforementioned, the holey material in this example uses stainless steel flat wire or high density polyethylene (HDPE) flat filament, and the high-density polyethylene number of its medium high density polyethylene flat filament is preferably HDPE (5000s).
In this example, metal tube 1 uses copper alloy tube or stainless steel tube, its a diameter of 25mm, and its shape and length are different according to different purposes.In terms of processing technology, pipe material selection metal material (stainless steel and copper alloy tube) is easier to processing.
And, this example forms on the inner tubal wall of described metal tube 1 and is positioned at the internal projection 1a axial two ends of porous packing 2, radially convex, thus to stop described porous packing 2 to depart from metal tube 1.
Additionally, this example forms cambered outwards outer lug 1b in footpath on the outer tube wall at described metal tube 1 two ends, to facilitate connection plastic piping, and prevent the plastic piping being connected to these metal tube 1 two ends from coming off.
During use, the metal tube 1 of this silencer is connected on the air inlet pipeline of automobile-used inflating pump, the porous packing 2 in metal tube with porous cross section can play upset acoustic wave propagation path, make that sound wave is divided in pipe, collision break-in, partly cancel out each other and weaken the Propagation of Energy of sound wave, thus realize noise elimination effect.
Certainly, above-described embodiment only for technology of the present utility model design and feature are described, its object is to allow people 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 equivalent transformations done according to the Spirit Essence of the utility model main technical schemes or modification, all should contain within protection domain of the present utility model.
Claims (9)
1. the automobile-used special reactive muffler of inflating pump air inlet, it is characterised in that: it includes metal tube (1),
The porous packing (2) rolled by holey material it is filled with in described metal tube (1).
The automobile-used special reactive muffler of inflating pump air inlet the most according to claim 1, it is characterised in that:
Described holey material is rolled at least one volume.
The automobile-used special reactive muffler of inflating pump air inlet the most according to claim 2, it is characterised in that:
Described holey material is by the fabric of flat filament braiding.
The automobile-used special reactive muffler of inflating pump air inlet the most according to claim 3, it is characterised in that:
Described flat filament is stainless steel flat wire or high density polyethylene (HDPE) flat filament.
The automobile-used special reactive muffler of inflating pump air inlet the most according to claim 4, it is characterised in that:
The model of described high density polyethylene (HDPE) is HDPE (5000s).
The automobile-used special reactive muffler of inflating pump air inlet the most according to claim 3, it is characterised in that:
The mesh number of described fabric is every square centimeter 8～12 mesh.
7., according to the described automobile-used special reactive muffler of inflating pump air inlet arbitrary in claim 1～6, it is special
Levy and be: described metal tube (1) is copper alloy tube or stainless steel tube, its a diameter of 25mm.
8., according to the described automobile-used special reactive muffler of inflating pump air inlet arbitrary in claim 1～6, it is special
Levy and be: form on the inner tubal wall of described metal tube (1) and be positioned at described porous packing (2) axial two
End, radially convex, with the internal projection (1a) stoping described porous packing (2) to depart from.
The automobile-used special reactive muffler of inflating pump air inlet the most according to claim 8, it is characterised in that:
The cambered outwards outer lug in footpath (1b) is formed on the outer tube wall at described metal tube (1) two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620075052.XU CN205533079U (en) | 2016-01-26 | 2016-01-26 | Automobile -used inflating pump special reactive muffler that admits air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620075052.XU CN205533079U (en) | 2016-01-26 | 2016-01-26 | Automobile -used inflating pump special reactive muffler that admits air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205533079U true CN205533079U (en) | 2016-08-31 |
Family
ID=56771084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620075052.XU Withdrawn - After Issue CN205533079U (en) | 2016-01-26 | 2016-01-26 | Automobile -used inflating pump special reactive muffler that admits air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205533079U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697336A (en) * | 2016-01-26 | 2016-06-22 | 金龙联合汽车工业（苏州）有限公司 | Reactive muffler special for inflation of automotive inflation pump |
-
2016
- 2016-01-26 CN CN201620075052.XU patent/CN205533079U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697336A (en) * | 2016-01-26 | 2016-06-22 | 金龙联合汽车工业（苏州）有限公司 | Reactive muffler special for inflation of automotive inflation pump |
| CN105697336B (en) * | 2016-01-26 | 2017-12-29 | 金龙联合汽车工业（苏州）有限公司 | A kind of automobile-used special reactive muffler of inflating pump air inlet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160831 Effective date of abandoning: 20171229 |
|
| AV01 | Patent right actively abandoned |