CN105201707A - Air filter for engine noise reduction - Google Patents
Air filter for engine noise reduction Download PDFInfo
- Publication number
- CN105201707A CN105201707A CN201510588554.2A CN201510588554A CN105201707A CN 105201707 A CN105201707 A CN 105201707A CN 201510588554 A CN201510588554 A CN 201510588554A CN 105201707 A CN105201707 A CN 105201707A
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- air
- air filter
- noise reduction
- filter
- engine noise
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Abstract
The invention relates to an air filter for engine noise reduction. The air filter comprises an outer barrel with two air inlets and a plurality of air outlets, a guide plate mounted in the outer barrel, and a filter element, a filter element fixing device, a flow division cap and an air feeding pipe which are mounted behind each air inlet, wherein a group of muffling sheets made of a porous sound absorption material is fixedly mounted in the outer barrel. According to the air filter, the noise generated by an engine air filter can be obviously reduced; meanwhile, the air filter is simple in structure and convenient to mount and use.
Description
Technical field
The present invention relates to a kind of air filter, specifically for the air filter of engine noise reduction.
Background technique
Existing air filter of engine, comprise with two suction ports and the urceolus of some air outlets, the filter core be fixedly mounted in each suction port, the shunting cap corresponding with filter core and breathing pipe, this structure is due to without silencer, and the noise that during use, pulse air miscarriage is raw is very large; And often occur in motor because lack of air causes insufficient situation of burning.Although it is perfect that prior art constantly carries out improvement to air filter, fail all the time thoroughly to reach reduction noise, increase the object of air inlet amount simultaneously.
Summary of the invention
The object of the present invention is to provide the air filter for engine noise reduction, solve the problem that in prior art, air filter noise is excessive, realize the object significantly reducing noise.
The present invention is achieved through the following technical solutions:
For the air filter of engine noise reduction, comprise with two suction ports and the urceolus of some air outlets, the guide plate be arranged in described urceolus, be arranged on the filter core after each suction port, filter core fixing device, shunting cap and breathing pipe, described outer barrel is installed with one group of anechoic sheet be made up of sound-absorbing porous material.In the course of the work, air enters from intake grill, and after filter element filtering and shunting cap shunting, then arrive anechoic sheet surface through breathing pipe, noise sound wave is successively through anechoic sheet, and its energy is successively decayed, thus realizes the object reducing noise.
Described anechoic sheet is made up of sound-absorbing porous material, sound-absorbing porous material is divided into organic synthetic fibre material (as polyacrylonitrile fibre), inorganic fibers (as glass wool), metallic fiber material (as aluminum fiber sheet metal) and foamed material (as acoustic foam plastics) by its physical property, its general character is that material internal has that interpenetrate in a large number, outwardly open micropore, makes material have certain gas permeability.When sound wave incident is to porous material surface, first be the air movement that the vibration produced due to sound wave causes in micropore, cause the friction with hole wall, but not easily move by the impact of hole wall viscous force near the air of hole wall surface, due to friction and the effect of viscous force, make that quite a few acoustic energy is irreversible is converted into heat energy, thus make acoustic attenuation, reach the object of sound absorption; Secondly, the thermal loss that the air in micropore and the heat exchange between hole wall cause, also makes sound energy attenuation, thus continues attenuating noise.
Further, the sound-absorbing porous material making described anechoic sheet is preferably metallic fiber material.Metallic fiber material has that intensity is high, high temperature resistant, long service life and the advantage that can recycle, and is conducive to ensureing noise reducing effect, improves working life.
The present invention compared with prior art, significantly can reduce engine noise and pollute, and structure is simple, is convenient to installation and use.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide the further understanding to the embodiment of the present invention, forms a application's part, does not form the restriction to the embodiment of the present invention.
Fig. 1 is the structural representation of the present invention's specific embodiment;
Fig. 2 is the sectional view along A-A direction;
Fig. 3 is the structural representation that anechoic sheet arranged radially is arranged in urceolus;
Fig. 4 is the sectional view along B-B direction.
Mark and corresponding component title in accompanying drawing:
1-filter core, 2-shunting cap, 3-breathing pipe, 4-urceolus, 5-filter core fixing device, 6-anechoic sheet, 7-guide plate, 8-base.
Embodiment
Clearly understand for making the object, technical solutions and advantages of the present invention, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and exemplary embodiment of the present invention and explanation thereof are only for explaining the present invention, not as a limitation of the invention.
The air filter for engine noise reduction as shown in Figure 1, comprise with two suction ports and some air outlets urceolus 4, be arranged on the guide plate 7 of described urceolus 4 inside, be arranged on the filter core 1 after each suction port, filter core fixing device 5, shunting cap 2 and breathing pipe 3, described urceolus 4 inside is installed with one group of anechoic sheet be made up of sound-absorbing porous material 6.This sound-absorbing porous material is preferably metallic fiber material.
In the present embodiment, anechoic sheet is along the axially-aligned of described urceolus 4, also can adopt the arranged radially mode along described urceolus in addition.Air filter of engine in the course of the work, air enters urceolus 4 by suction port, after filter core 1 filters and shunting cap 2 is shunted, through the anechoic sheet 6 that breathing pipe arrival sound-absorbing porous material is made, when sound wave incident is to porous material surface, first be the air movement that the vibration produced due to sound wave causes in micropore or gap, cause the friction with hole wall, air near hole wall surface not easily moves by the impact of hole wall viscous force, due to friction and the effect of viscous force, make that quite a few acoustic energy is irreversible is converted into heat energy, thus make acoustic attenuation, reach the object of sound absorption, secondly, the thermal loss that the air in micropore and the heat exchange between hole wall cause, also makes sound energy attenuation, thus weakens the noise produced in air filter work process further.
Above-described embodiment; object of the present invention, technological scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. for the air filter of engine noise reduction, comprise with two suction ports and the urceolus (4) of some air outlets, the guide plate (7) be arranged in described urceolus (4), be arranged on the filter core (1) after each suction port, filter core fixing device (5), shunting cap (2) and breathing pipe (3), it is characterized in that: described urceolus (4) inside is installed with one group of anechoic sheet be made up of sound-absorbing porous material (6).
2. the air filter for engine noise reduction according to claim 1, is characterized in that: the sound-absorbing porous material making described anechoic sheet (6) is preferably metallic fiber material.
3. the air filter for engine noise reduction according to claim 1 and 2, is characterized in that: described anechoic sheet (6) is along the axially-aligned of described urceolus (4).
4. the air filter for engine noise reduction according to claim 1 and 2, is characterized in that: described anechoic sheet (6) is along the arranged radially of described urceolus (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510588554.2A CN105201707A (en) | 2015-09-16 | 2015-09-16 | Air filter for engine noise reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510588554.2A CN105201707A (en) | 2015-09-16 | 2015-09-16 | Air filter for engine noise reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105201707A true CN105201707A (en) | 2015-12-30 |
Family
ID=54949597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510588554.2A Pending CN105201707A (en) | 2015-09-16 | 2015-09-16 | Air filter for engine noise reduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105201707A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1287182A (en) * | 1999-09-07 | 2001-03-14 | 南阳金属纤维实业公司 | Stainless steel fiber material and its processing technology and stainless steel fiber muffler element |
| CN1637239A (en) * | 2004-01-09 | 2005-07-13 | 本田技研工业株式会社 | Exhaust apparatus for small-sized engine |
| CN101149006A (en) * | 2006-09-21 | 2008-03-26 | 雅马哈株式会社 | Silencer |
| CN201170145Y (en) * | 2008-02-02 | 2008-12-24 | 四川正升能源技术服务有限公司 | Engine noise reduction empty filter |
| CN201679595U (en) * | 2010-04-30 | 2010-12-22 | 中国第一汽车集团公司 | Muffling type air cleaner |
| CN102301862A (en) * | 2011-07-07 | 2012-01-04 | 宁波大叶园林设备有限公司 | Improved grass cutter with self-clutched blade |
| CN102334400A (en) * | 2011-06-23 | 2012-02-01 | 宁波大叶园林设备有限公司 | Riding mower with noise reduction measure and hydraulic stepless speed change |
| CN102656988A (en) * | 2011-07-12 | 2012-09-12 | 宁波大叶园林设备有限公司 | Function wave blade self-clutching riding mower |
| CN203627039U (en) * | 2013-12-17 | 2014-06-04 | 曼胡默尔滤清器（上海）有限公司 | Silencing board installed inside shell of air filter |
| CN204961127U (en) * | 2015-09-16 | 2016-01-13 | 成都正升能源技术开发有限公司 | Denoising air filter of engine |
-
2015
- 2015-09-16 CN CN201510588554.2A patent/CN105201707A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1287182A (en) * | 1999-09-07 | 2001-03-14 | 南阳金属纤维实业公司 | Stainless steel fiber material and its processing technology and stainless steel fiber muffler element |
| CN1637239A (en) * | 2004-01-09 | 2005-07-13 | 本田技研工业株式会社 | Exhaust apparatus for small-sized engine |
| CN101149006A (en) * | 2006-09-21 | 2008-03-26 | 雅马哈株式会社 | Silencer |
| CN201170145Y (en) * | 2008-02-02 | 2008-12-24 | 四川正升能源技术服务有限公司 | Engine noise reduction empty filter |
| CN201679595U (en) * | 2010-04-30 | 2010-12-22 | 中国第一汽车集团公司 | Muffling type air cleaner |
| CN102334400A (en) * | 2011-06-23 | 2012-02-01 | 宁波大叶园林设备有限公司 | Riding mower with noise reduction measure and hydraulic stepless speed change |
| CN102301862A (en) * | 2011-07-07 | 2012-01-04 | 宁波大叶园林设备有限公司 | Improved grass cutter with self-clutched blade |
| CN102656988A (en) * | 2011-07-12 | 2012-09-12 | 宁波大叶园林设备有限公司 | Function wave blade self-clutching riding mower |
| CN203627039U (en) * | 2013-12-17 | 2014-06-04 | 曼胡默尔滤清器（上海）有限公司 | Silencing board installed inside shell of air filter |
| CN204961127U (en) * | 2015-09-16 | 2016-01-13 | 成都正升能源技术开发有限公司 | Denoising air filter of engine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151230 |