CN105626333A - Air filter and shell thereof - Google Patents
Air filter and shell thereof Download PDFInfo
- Publication number
- CN105626333A CN105626333A CN201610160989.1A CN201610160989A CN105626333A CN 105626333 A CN105626333 A CN 105626333A CN 201610160989 A CN201610160989 A CN 201610160989A CN 105626333 A CN105626333 A CN 105626333A
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- Prior art keywords
- housing
- noise reduction
- air filter
- air
- resistance
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/14—Combined air cleaners and silencers
Abstract
The invention discloses an air filter shell. The air filter shell comprises a shell body, and the shell body is provided with an air inlet and an air outlet; a resistance noise reduction pipe is arranged inside the shell body, can be directly connected with the air inlet and also can be connected with the air outlet; two resistance noise reduction pipes can also be arranged at the same time and are connected with the air inlet and the air outlet correspondingly; and according to the air filter shell, the resistance noise reduction pipes are arranged in the air filter shell. Through the internally-arranged resistance noise reduction pipes, air permeability of the resistance noise reduction pipes is used, and therefore it is ensured that air inlet resistance is not greatly changed; and meanwhile, the noise reduction efficiency is optimized, the dust leakage problem does not need to be considered, and on the premise of being at the expense of not greatly losing fluid resistance of an air inlet system, the noise reduction amount of the broadband frequency domain of the air inlet system is greatly improved. The invention further discloses an air filter with the air filter shell.
Description
Technical field
The present invention relates to the NVH performance development technical field of engine charge system, particularly relate to a kind of air filter and housing thereof.
Background technology
The widespread use of turbocharging technology, the NVH problem brought: the noise problem of the 800-3000Hz of turbo-charging under anxious acceleration operating mode; Under anxious receipts throttle operating mode, the noise problem of the 0-8000Hz that pressure release valve brings. A lot of whole depot improves this two kinds of noise problem by inlet system.
Means conventional at present have two kinds, and the first is by resistance noise reduction pipe belt for part air entraining pipe pipeline, and only can be used in the outside of air filter housing. According to prior art, resistance noise reduction pipe can not be placed in the enclosure interior of air filter, this is because air filter housing is the space of a relative closure, introduces resistance noise reduction pipe and inevitably increases intake resistance, increase back pressure, thus affect the efficiency of combustion of engine. Further, if introducing resistance noise reduction pipe in air filter enclosure interior, by changing the flow field of enclosure interior, the space layout to air filter inside is thus needed to make adjustment and balance. Further, owing to resistance noise reduction pipe has ventilation property, if the pipeline being used in clean end can cause leakage ash, so prior art thinks that resistance noise reduction pipe can only use at the dirty end of air filter hull outside usually; 2nd kind is by the air inlet flow guide pipe of plastic material as air filter inside.
Adopt the drawback of the first method many, comprising:
1, dirty end in air filter outside uses resistance noise reduction pipe, is sound field relatively freely around hush tube, and sound is divergent shape, transmits resistance noise reduction pipe, and the contact number of times of this sound and hush tube is few, and the effect of resistance noise reduction pipe is not fully played;
2, dirty end in air filter outside uses resistance noise reduction pipe, being relative sound field freely around hush tube, sound is divergent shape, transmits resistance noise reduction pipe, this sound directly diffuses to nacelle and cab, has bigger impact to by noise and internal car noise;
3, by outside spacial influence, when air entraining pipe length is shorter time, just do not possess the condition using resistance noise reduction pipe. Because air entraining pipe itself is shorter, after removing the length of the transition section connecting resistance noise reduction pipe, resistance noise reduction pipe is just shorter, can directly cause transmission loss undesirable like this.
Adopt the drawback of the 2nd kind of method many equally, comprising:
1, this kind of scheme from acoustically only there being certain effect to low-frequency noise, and high-frequency noises effect is very micro-, is not suitable in the scheme cutting down turbo charged high frequency noise;
2, the application of the program can make flow resistance significantly improve, and especially when the built-in plastics thrust-augmenting nozzle in the inner outlet side of air filter, flow resistance can significantly improve. Economy is required more and more higher by present vehicle performance, and the requirement of flow resistance is also more and more higher, it may also be useful to the program is fallen to make an uproar and can be improved flow resistance to a great extent.
Therefore, how to provide a kind of air filter housing, not to lose inlet system fluid resistance in a large number as, under the prerequisite of cost, significantly improving the noise reduction amount of the broadband frequency domain of inlet system, it is current those skilled in the art technical problems urgently to be resolved hurrily.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of air filter housing, not to lose inlet system fluid resistance in a large number as, under the prerequisite of cost, significantly improving the noise reduction amount of the broadband frequency domain of inlet system.
In order to achieve the above object, the present invention provides following technical scheme:
A kind of air filter housing, comprises enclosure body, described enclosure body is provided with inlet mouth and air outlet, and described enclosure body inside is provided with resistance noise reduction pipe.
Preferably, above-mentioned resistance noise reduction pipe is connected with described inlet mouth.
Preferably, above-mentioned resistance noise reduction pipe is connected with described air outlet.
Preferably, above-mentioned resistance noise reduction pipe is two, is connected with described inlet mouth and described air outlet respectively.
The present invention also provides a kind of air filter, comprises filter core and air filter housing, and described filter core is arranged in described air filter housing, and described air filter housing is the air filter housing as described in above-mentioned any one.
Preferably, above-mentioned enclosure body comprises the first housing and the 2nd housing, described first housing and described 2nd housing have offered cavity respectively, when described first housing and described 2nd housing button close, two described cavity docking form air filter cavity, described first housing is provided with described inlet mouth, described 2nd housing is provided with described air outlet.
Preferably, above-mentioned filter core is fixed on described first housing and the junction of described 2nd housing.
Preferably, said first shell and described 2nd housing are connected by card button or screw.
Preferably, when described resistance noise reduction pipe is two and when being connected with described inlet mouth and described air outlet respectively, two described resistance noise reduction pipes are separated by described filter core.
Preferably, above-mentioned inlet mouth and described air outlet are separately positioned on the longest two ends of the relative length of described enclosure body.
Air filter housing provided by the invention, comprises enclosure body, and described enclosure body is provided with inlet mouth and air outlet, and described enclosure body inside is provided with resistance noise reduction pipe. Resistance noise reduction pipe can be set to one, and it can directly be connected with inlet mouth, it is also possible to is directly connected with air outlet, it is also possible to arrange two simultaneously, is connected with described inlet mouth and described air outlet respectively.
Air filter housing provided by the invention by being arranged on the inside of air filter housing by resistance noise reduction pipe, utilize the ventilation property of resistance noise reduction pipe, in conjunction with rational interior layout, thus ensure that intake resistance does not have big change, make noise reduction efficacy optimization simultaneously, and the problem that dust is revealed need not be considered, it is possible to not to lose inlet system fluid resistance in a large number as under the prerequisite of cost, significantly improve the noise reduction amount of the broadband frequency domain of inlet system, it is possible to realize:
1, do not worry that outside dust is leaked to clean district;
2, resistance noise reduction pipe is placed on air filter enclosure interior, can the sound exhaled from resistance noise reduction tube wall, diffuse to air filter inner walls, reflection returns to rub with resistance noise reduction pipe again, cut down reduction and so forth, until sound propagates out air filter body, by utilising efficiency maximumization of the resistive material of resistance noise reduction pipe;
3, resistance noise reduction pipe is placed on air filter enclosure interior, it is possible to preventing this hush tube from designing when dirty end pipeline position, this sound directly diffuses to nacelle and cab from tube wall, to the negative impact produced by noise and internal car noise;
4, design is not by air entraining pipe effect length;
5, by resistance noise reduction pipe belt for thrust-augmenting nozzle, owing to resistance noise reduction pipe has certain ventilation property, it is possible to reduce the trend that flow-guiding structure makes resistance rise greatly, thus realize not to lose inlet system fluid resistance in a large number as cost;
6, by resistance noise reduction pipe belt for thrust-augmenting nozzle, it is possible to eliminate the medium-high frequency that turbo-charging produces more targetedly, thus significantly improve the noise reduction amount of the broadband frequency domain of inlet system.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The sectional structure schematic diagram of the air filter housing that Fig. 1 provides for the embodiment of the present invention.
In upper Fig. 1:
Resistance noise reduction pipe 1, inlet mouth 2, air outlet 3, first housing 4, the 2nd housing 5, filter core 6.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, the sectional structure schematic diagram of the air filter housing that Fig. 1 provides for the embodiment of the present invention.
Terminological interpretation:
Reactive muffling device: produce and connect resonator etc. by sudden change place of pipeline section or side and cause the change of impedance in sound propagation process and produce reflection, the interference of acoustic energy, thus reduce by sourdine to the acoustic energy of external irradiation, to reach the sourdine of noise elimination object, the main noise reducing low frequency and medium and low frequency section.
Dissipative muffler: Commercial cultivation sound wave is propagated in porous sound-absorbing material or sound absorption structure, because acoustic energy is converted into heat energy and dissipate by friction, noise along pipe transmmision is decayed with distance, thus reaches the sourdine of noise elimination object, mainly reduce high-frequency noises.
Resistance noise reduction pipe: use resistive material, the pipeline being made by various process means, to reach the object of noise elimination, such as: the pipe fitting that braided tube, non-woven fabrics hot pressing pipe, non-woven fabrics or the cotton felt class material such as become with material braidings such as nylon, steel wire, cotton threads is made.
Transmission loss: transmission loss is an important characteristic parameter of sourdine/pipe acoustical behavior, is the natural characteristics of a sourdine itself, and its numerical value can be used as the judgement criteria of sourdine/pipe performance. Under normal circumstances, it is believed that transmission loss value is more big, the acoustic attenuation performance of sourdine/pipe is more good.
Air entraining pipe: be the dirty end pipeline of inlet system, it is also possible to be interpreted as air filter air inlet pipe.
NVH: English full name is NoiseVibrationandHarshness, and Chinese is noise, vibration and sound vibration roughness.
Air inlet flow guide pipe: the entrance and exit being placed on flow field, for regulating the uniformity coefficient of flow field, and plays corresponding noise elimination effect.
The air filter housing that the embodiment of the present invention provides, comprises enclosure body, enclosure body is provided with inlet mouth 2 and air outlet 3, and enclosure body inside is provided with resistance noise reduction pipe 1. Resistance noise reduction pipe 1 can directly be connected with inlet mouth 2, it is also possible to is connected with air outlet 3, it is also possible to arrange two simultaneously, is connected with inlet mouth 2 and air outlet 3 respectively.
Air filter housing provided by the invention overcomes and resistance noise reduction pipe can not be arranged at air filter enclosure interior, and only can be used in the technical problem of the dirty end of hull outside, by resistance noise reduction pipe 1 being arranged on the inside of air filter housing, utilize the ventilation property of resistance noise reduction pipe 1, in conjunction with rational interior layout, thus ensure that intake resistance does not have big change, make noise reduction efficacy optimization simultaneously, and the problem that dust is revealed need not be considered, can not to lose inlet system fluid resistance in a large number as under the prerequisite of cost, significantly improve the noise reduction amount of the broadband frequency domain of inlet system, can realize:
1, do not worry that outside dust is leaked to clean district;
2, resistance noise reduction pipe 1 is placed on air filter enclosure interior, can the sound exhaled from resistance noise reduction tube wall, diffuse to air filter inner walls, reflection returns to rub with resistance noise reduction pipe 1 again, cut down reduction and so forth, until sound propagates out air filter body, by utilising efficiency maximumization of the resistive material of resistance noise reduction pipe 1;
3, resistance noise reduction pipe 1 is placed on air filter enclosure interior, it is possible to preventing this hush tube from designing when dirty end pipeline position, this sound directly diffuses to nacelle and cab from tube wall, to the negative impact produced by noise and internal car noise;
4, design is not by air entraining pipe effect length;
5, thrust-augmenting nozzle is replaced with resistance noise reduction pipe 1, owing to resistance noise reduction pipe 1 has certain ventilation property, it is possible to reduce the trend that flow-guiding structure makes resistance rise greatly, thus realize not to lose inlet system fluid resistance in a large number as cost;
6, thrust-augmenting nozzle is replaced with resistance noise reduction pipe 1, it is possible to eliminate the medium-high frequency that turbo-charging produces more targetedly, thus significantly improve the noise reduction amount of the broadband frequency domain of inlet system.
The embodiment of the present invention also provides a kind of air filter, and as shown in Figure 1, described air filter comprises filter core 6 and air filter housing, and filter core 6 is arranged in air filter housing, and air filter housing is the air filter housing as described in above-mentioned any one. Same reason, air filter housing in air filter is by built-in resistance noise reduction pipe 1, utilize the ventilation property of resistance noise reduction pipe 1, ensure that intake resistance does not have big change, make noise reduction efficacy optimization simultaneously, and the problem that dust is revealed need not be considered, it is possible to not to lose inlet system fluid resistance in a large number as, under the prerequisite of cost, significantly improving the noise reduction amount of the broadband frequency domain of inlet system.
Wherein, enclosure body is split type housing, enclosure body comprises the first housing 4 and the 2nd housing 5, first housing 4 and the 2nd housing 5 have offered cavity respectively, when the first housing 4 and the 2nd housing 5 button close, two cavity docking form air filter cavity, the first housing 4 is provided with inlet mouth 2, the 2nd housing 5 is provided with air outlet 3. Facilitate the installation and removal of resistance noise reduction pipe 1. And owing to have employed split type housing, so filter core 6 sandwiched can be fixed on the first housing 4 and the junction of the 2nd housing 5, thus inlet mouth 2 and air outlet 3 are separated, it is achieved filtering function. Certainly, in other embodiments, filter core 6 can also be arranged on the first housing 4 or the inside of the 2nd housing 5, and, when resistance noise reduction pipe 1 is two and when being connected with inlet mouth 2 and air outlet 3 respectively, two resistance noise reduction pipes 1 can be separated by filter core 6 so that it is lays respectively at the dirty end of air filter and clean end, it may also be useful to better effects if.
Wherein, inlet mouth 2 and air outlet 3 are separately positioned on the longest two ends of the relative length of enclosure body, namely the direction of inlet mouth 2 and air outlet 3 be all X as far as possible to, it is identical or different that the present embodiment does not limit both direction vectors, this is for the consideration optimizing flow field, in addition, inlet mouth 2 and air outlet 3 are applied in long side direction as far as possible, namely the two ends that the relative length of enclosure body is the longest, and the axis of the plane at preferred filter core 6 place and two resistance noise reduction pipes is almost parallel, this kind of longer resistance noise reduction pipe 1 can be used like this, this considers for acoustic noise reduction.
Wherein, the first housing 4 and the 2nd housing 5 can be buckled by card and be flexibly connected or be flexibly connected by screw.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are enable to realize or use the present invention. To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments. Therefore, the present invention can not be limited in these embodiments shown in this article, but be met the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an air filter housing, comprises enclosure body, and described enclosure body is provided with inlet mouth and air outlet, it is characterised in that, described enclosure body inside is provided with resistance noise reduction pipe.
2. air filter housing according to claim 1, it is characterised in that, described resistance noise reduction pipe is connected with described inlet mouth.
3. air filter housing according to claim 1, it is characterised in that, described resistance noise reduction pipe is connected with described air outlet.
4. air filter housing according to claim 1, it is characterised in that, described resistance noise reduction pipe is two, is connected with described inlet mouth and described air outlet respectively.
5. an air filter, comprises filter core and air filter housing, and described filter core is arranged in described air filter housing, it is characterised in that, described air filter housing is the air filter housing as described in the claims 1-4 any one.
6. air filter according to claim 5, it is characterized in that, described enclosure body comprises the first housing and the 2nd housing, described first housing and described 2nd housing have offered cavity respectively, when described first housing and described 2nd housing button close, two described cavity docking form air filter cavity
Described first housing is provided with described inlet mouth, described 2nd housing is provided with described air outlet.
7. air filter according to claim 6, it is characterised in that, described filter core is fixed on described first housing and the junction of described 2nd housing.
8. air filter according to claim 6, it is characterised in that, described first housing and described 2nd housing are connected by card button or screw.
9. air filter according to claim 5, it is characterized in that, when described resistance noise reduction pipe is two and when being connected with described inlet mouth and described air outlet respectively, two described resistance noise reduction pipes are separated by described filter core, and the axis being parallel of the plane at described filter core place and two described resistance noise reduction pipes.
10. air filter according to claim 5, it is characterised in that, described inlet mouth and described air outlet are separately positioned on the longest two ends of the relative length of described enclosure body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610160989.1A CN105626333A (en) | 2016-03-21 | 2016-03-21 | Air filter and shell thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610160989.1A CN105626333A (en) | 2016-03-21 | 2016-03-21 | Air filter and shell thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105626333A true CN105626333A (en) | 2016-06-01 |
Family
ID=56041584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610160989.1A Pending CN105626333A (en) | 2016-03-21 | 2016-03-21 | Air filter and shell thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105626333A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983702A (en) * | 2020-12-30 | 2021-06-18 | 广东恒勃滤清器有限公司 | Novel noise-reduction air filter |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003161216A (en) * | 2001-11-28 | 2003-06-06 | Toyoda Gosei Co Ltd | Intake unit |
| JP2003184678A (en) * | 2001-12-17 | 2003-07-03 | Wako Industrial Co Ltd | Air cleaner |
| CN102953873A (en) * | 2012-12-12 | 2013-03-06 | 安徽江淮汽车股份有限公司 | Air filter for car |
| CN204627810U (en) * | 2015-05-20 | 2015-09-09 | 绵阳市万欣测控技术有限公司 | A kind of denoising structure for engine aspirating system |
| CN104976000A (en) * | 2015-07-10 | 2015-10-14 | 重庆长安汽车股份有限公司 | Method and structure for lowering noise of engine |
| CN204827726U (en) * | 2015-08-17 | 2015-12-02 | 上海汽车集团股份有限公司 | Car and be used for air cleaner of car |
| CN205478017U (en) * | 2016-03-21 | 2016-08-17 | 长春科德宝·宝翎滤清器有限公司 | Empty filter and casing thereof |
-
2016
- 2016-03-21 CN CN201610160989.1A patent/CN105626333A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003161216A (en) * | 2001-11-28 | 2003-06-06 | Toyoda Gosei Co Ltd | Intake unit |
| JP2003184678A (en) * | 2001-12-17 | 2003-07-03 | Wako Industrial Co Ltd | Air cleaner |
| CN102953873A (en) * | 2012-12-12 | 2013-03-06 | 安徽江淮汽车股份有限公司 | Air filter for car |
| CN204627810U (en) * | 2015-05-20 | 2015-09-09 | 绵阳市万欣测控技术有限公司 | A kind of denoising structure for engine aspirating system |
| CN104976000A (en) * | 2015-07-10 | 2015-10-14 | 重庆长安汽车股份有限公司 | Method and structure for lowering noise of engine |
| CN204827726U (en) * | 2015-08-17 | 2015-12-02 | 上海汽车集团股份有限公司 | Car and be used for air cleaner of car |
| CN205478017U (en) * | 2016-03-21 | 2016-08-17 | 长春科德宝·宝翎滤清器有限公司 | Empty filter and casing thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983702A (en) * | 2020-12-30 | 2021-06-18 | 广东恒勃滤清器有限公司 | Novel noise-reduction air filter |
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Application publication date: 20160601 |