CN204627810U - A kind of denoising structure for engine aspirating system - Google Patents
A kind of denoising structure for engine aspirating system Download PDFInfo
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- CN204627810U CN204627810U CN201520328160.9U CN201520328160U CN204627810U CN 204627810 U CN204627810 U CN 204627810U CN 201520328160 U CN201520328160 U CN 201520328160U CN 204627810 U CN204627810 U CN 204627810U
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- air
- hose
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- induction hose
- air induction
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Abstract
The utility model discloses a kind of denoising structure for engine aspirating system, comprise air induction hose, air-out hose, air-strainer, air-strainer comprises overhead filter box in integrative-structure and lower air filter case, air induction hose is arranged on lower air filter case, air-out hose is located on the filter box of overhead, air-out hose is also connected with extension tube away from one end of overhead filter box, air induction hose is also connected with the intake manifold communicated with air induction hose.In the utility model, treat that noise enters in this structure, noise shakes back and forth in air induction hose, most noise enters in air-strainer as can the postpone inwall aperture of air induction hose of energy, and flowed out by air-out hose, only have small part along with in air-flow inflow engine, can effectively reduce the noise entered in motor car engine housing like this.
Description
Technical field
The utility model relates to automotive engine air intake system attachment technique field, specifically refers to a kind of denoising structure for engine aspirating system.
Background technique
Present consumers in general propose requirements at the higher level, as NVH(noise, vibration and travelling comfort to the overall performance of automobile) performance become the important indicator evaluating automotive quality.The NVH performance that Ge great Zhu depot is all devoted to by improving automobile promotes its brand value and the market competitiveness.Meanwhile, along with people are to the continuous attention of noise pollution, the regulation for automobile noise is also constantly strict.Induction noise have also been obtained enough attention as an important noise source of automobile.And traditional design means for market demand rapid response, can not design the gas handling system met the demands.Use modern CAE technological development gas handling system imperative.
The gas handling system of motor is a very complicated noise source, comprises various types of noise, and the mechanism that often kind of noise produces is also different.Therefore, intake system noise is optimized and first wants each noise source Producing reason clear and definite, and determine the contribution amount of each noise source, then solve noise problem targetedly.Intake system noise can be divided into airborne noise and the large class of construct noise two on the whole.
Airborne noise comprises microseismic noise and flow noise.Microseismic noise is that the pressure fluctuations change produced by the periodicity open and close of intake valve is formed.This part noise major effect gas handling system low-frequency noise characteristic.If when the natural frequency of the air column of suction tude is consistent with the main frequency of periodically pulsing noise in addition, the sympathetic response sound of air column can be produced.In addition due to a resonant cavity may be formed between suction port and front side plate, extra resonance noise may be produced.Flow noise be air-flow with high speed flow through intake valve flow area, formed eddy current, the high-frequency noise of generation.Because intake valve flow area is constantly change, therefore this noise has the frequency distribution of one fixed width, and major frequency components is at more than 1000HZ.This external throttle body place also can produce eddy current crack sometimes.
Air intake system structure radiated noise is because the stiffness characteristics that plastic casing is less causes, and produce vibration at the excitation lower shell body of internal pressure ripple, outer surface promotes air and produces fluctuation, thus gives off noise.In fact internal pressure ripple mentioned here is exactly the sound wave of enclosure interior.
Advancing by leaps and bounds of engine technology, though engine noise decreases, other noise sources outside motor such as the contribution portion of induction noise to entire vehicle increases relatively, therefore induction noise problem more and more comes into one's own, and provides a kind of automotive engine air intake system noise that lowers to be prior art technical problem urgently to be resolved hurrily.
Model utility content
The purpose of this utility model is: provide a kind of denoising structure for engine aspirating system, can effectively reduce the noise entering engine aspirating system, improves the overall performance of automobile.
The utility model is achieved through the following technical solutions: a kind of denoising structure for engine aspirating system, comprise air induction hose, air-out hose, air-strainer, air-strainer comprises overhead filter box in integrative-structure and lower air filter case, air induction hose is arranged on lower air filter case, air-out hose is located on the filter box of overhead, air-out hose is also connected with extension tube away from one end of overhead filter box, air induction hose is also connected with the intake manifold communicated with air induction hose.
Further, in order to better realize the utility model, also there is such technical characteristics, described air induction hose is inserted into the inside of lower air filter case, and removably connect with lower air filter case, it is inner that air-out hose is inserted into overhead filter box, and removably connect with overhead filter box.
Further, in order to better realize the utility model, also have such technical characteristics, described air-out hose is connected by threaded coupling with extension tube.
Further, in order to better realize the utility model, also have such technical characteristics, described air induction hose is air inlet woven tube.
Further, in order to better realize the utility model, also have such technical characteristics, described air induction hose is natural shaped after adopting the braiding of at least one in cotton thread, polyester thread union twist yarn, nylon thread blending.
Further, in order to better realize the utility model, also have such technical characteristics, the diameter of described air induction hose is 60-80mm, and porosity ratio is 1210HZ, and length is 160-180mm.
The utility model compared with prior art, has the following advantages and beneficial effect:
(1) the utility model structure is simple, conveniently produces and transforms prior art structure.
(2) in the utility model, treat that noise enters in structure, noise shakes back and forth in air induction hose, intake manifold, most noise postpone air induction hose, intake manifold inwall aperture enter in air-strainer, and flowed out by air-out hose, only have small part along with in air-flow inflow engine, can effectively reduce the induction noise entered in motor car engine housing like this.
(3) the utility model mainly utilizes sound wave to cancel out each other noise reduction, and do not increase the device that other are unnecessary, cost of production is low, in engine aspirating system noise reduction, have larger popularizing action.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1-air induction hose, 2-air-out hose, 3-air-strainer, 4-extension tube, 5-intake manifold.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but mode of execution of the present utility model is not limited thereto.
Embodiment 1:
See Fig. 1, a kind of denoising structure for engine aspirating system, comprise air induction hose 1, air-out hose 2, air-strainer 3, air-strainer 3 comprises overhead filter box in integrative-structure and lower air filter case, air induction hose 1 is arranged on lower air filter case, air-out hose 2 is located on the filter box of overhead, and air-out hose 2 is also connected with extension tube 4 away from one end of overhead filter box, air induction hose 1 is also connected with the intake manifold 5 communicated with air induction hose 1.
The back and forth concussion time of noise in air induction hose 1 is increased by arranging intake manifold 5; Air-out hose 2 is connected with extension tube 4 away from one end of overhead filter box, can prevents outlet from occurring the possibility of backflow.
Appropriate design and select air-strainer 3 effectively can control induction noise, volume shared by air-strainer 3 can be used as the expansion chamber of expansibility silencing apparatus, and air-strainer 3 is equivalent to an expansion baffler, stress release treatment, and dirty air enters in air-strainer 3, the filter core effect arranged in air-strainer 3, can realize purifying air, air after purification becomes the motor energy, and reduces the transferring energy loss of air-strainer 3.
In the inside of air-strainer 3, can sound-absorbing porous material be set, as the various organic or inorganic fiber and its products of fibrous aggregate structure and the open-celled foam plastics of porous structure and expanded perlite product.The noise entering engine aspirating system can be reduced further, improve the overall performance of automobile.
Embodiment 2:
The present embodiment limits further on the basis of embodiment 1, and described air induction hose 1 is inserted into the inside of lower air filter case, and removably connects with lower air filter case, and it is inner that air-out hose 2 is inserted into overhead filter box, and removably connect with overhead filter box.More than arrange, be mainly convenient to the connection of air-out hose 2 and overhead filter box, air induction hose 1 and lower air filter case, and realize stable connection.Other parts in the present embodiment are same as the previously described embodiments, repeat no more.
Embodiment 3:
In order to better realize the utility model, the present embodiment limits further on the basis of above-described embodiment, described air-out hose 2 is connected by threaded coupling with extension tube 4, and the effect that extension tube 4 is arranged prevents the outlet of air-out hose 2 from occurring backflow phenomenon, reduces the noise entering motor.Other parts in the present embodiment are same as the previously described embodiments, repeat no more.
Embodiment 4:
In order to better realize the utility model, the basis of above-described embodiment is further limited, described air induction hose 1 is air inlet woven tube.Air induction hose 1 is natural shaped after adopting at least one in cotton thread, polyester thread union twist yarn, nylon thread blending to weave, and air inlet woven tube good springiness, can in relative broad range, stress release treatment.Other parts in the present embodiment are same as the previously described embodiments, repeat no more.
Embodiment 5:
In order to better realize the utility model, the present embodiment is further limited on the basis of above-described embodiment, and the diameter of described air induction hose 1 is 60-80mm, and porosity ratio is 1210HZ, and length is 160-180mm.
The voids of air induction hose 1 is higher, better to low frequency noise noise reduction, and professional standard " the voids measuring and calculation method " calculating that porosity ratio is use RJ Reynolds Tobacco Holdings ,Inc. writes forms.The noise reduction to entering air induction hose 1 noise is can further improve by the above restriction to air induction hose diameter, voids, length.
The above; it is only preferred embodiment of the present utility model; not do any pro forma restriction to the utility model, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present utility model, all falls within protection domain of the present utility model.
Claims (6)
1. the denoising structure for engine aspirating system, it is characterized in that: comprise air induction hose (1), air-out hose (2), air-strainer (3), air-strainer (3) comprises overhead filter box in integrative-structure and lower air filter case, air induction hose (1) is arranged on lower air filter case, air-out hose (2) is located on the filter box of overhead, air-out hose (2) is also connected with extension tube (4) away from one end of overhead filter box, air induction hose (1) is also connected with the intake manifold (5) communicated with air induction hose (1).
2. a kind of denoising structure for engine aspirating system according to claim 1, it is characterized in that: described air induction hose (1) is inserted into the inside of lower air filter case, and removably connect with lower air filter case, it is inner that air-out hose (2) is inserted into overhead filter box, and removably connect with overhead filter box.
3. a kind of denoising structure for engine aspirating system according to claim 1 and 2, is characterized in that: described air-out hose (2) is connected by threaded coupling with extension tube (4).
4. a kind of denoising structure for engine aspirating system according to claim 3, is characterized in that: described air induction hose (1) is air inlet woven tube.
5. a kind of denoising structure for engine aspirating system according to claim 4, is characterized in that: described air induction hose (1) adopts the braiding of at least one in cotton thread, polyester thread union twist yarn, nylon thread blending natural shaped.
6. a kind of denoising structure for engine aspirating system according to claim 5, is characterized in that: the diameter of described air induction hose (1) is 60-80mm, and porosity ratio is 1210HZ, and length is 160-180mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328160.9U CN204627810U (en) | 2015-05-20 | 2015-05-20 | A kind of denoising structure for engine aspirating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328160.9U CN204627810U (en) | 2015-05-20 | 2015-05-20 | A kind of denoising structure for engine aspirating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204627810U true CN204627810U (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520328160.9U Expired - Fee Related CN204627810U (en) | 2015-05-20 | 2015-05-20 | A kind of denoising structure for engine aspirating system |
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| Country | Link |
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| CN (1) | CN204627810U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626333A (en) * | 2016-03-21 | 2016-06-01 | 长春科德宝·宝翎滤清器有限公司 | Air filter and shell thereof |
| CN107355323A (en) * | 2017-08-16 | 2017-11-17 | 冉超 | A kind of automotive air intake noise sound arrester |
-
2015
- 2015-05-20 CN CN201520328160.9U patent/CN204627810U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626333A (en) * | 2016-03-21 | 2016-06-01 | 长春科德宝·宝翎滤清器有限公司 | Air filter and shell thereof |
| CN107355323A (en) * | 2017-08-16 | 2017-11-17 | 冉超 | A kind of automotive air intake noise sound arrester |
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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: 20150909 Termination date: 20190520 |