CN104712470A - Testing device for determining resonant cavity structure of air inlet pipe of air filter - Google Patents
Testing device for determining resonant cavity structure of air inlet pipe of air filter Download PDFInfo
- Publication number
- CN104712470A CN104712470A CN201310685296.0A CN201310685296A CN104712470A CN 104712470 A CN104712470 A CN 104712470A CN 201310685296 A CN201310685296 A CN 201310685296A CN 104712470 A CN104712470 A CN 104712470A
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- China
- Prior art keywords
- inlet pipe
- air inlet
- resonant cavity
- air filter
- determining
- Prior art date
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- 238000012360 testing method Methods 0.000 title claims abstract description 72
- 239000011148 porous material Substances 0.000 claims description 38
- 238000012856 packing Methods 0.000 claims description 24
- 230000008030 elimination Effects 0.000 abstract description 19
- 238000003379 elimination reaction Methods 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 10
- 238000011161 development Methods 0.000 abstract description 5
- 239000000945 filler Substances 0.000 abstract 2
- 239000000284 extract Substances 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Classifications
-
- 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
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
-
- 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
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1205—Flow throttling or guiding
- F02M35/1216—Flow throttling or guiding by using a plurality of holes, slits, protrusions, perforations, ribs or the like; Surface structures; Turbulence generators
-
- 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
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
- F02M35/1266—Intake silencers ; Sound modulation, transmission or amplification using resonance comprising multiple chambers or compartments
Abstract
The invention discloses a testing device for determining the resonant cavity structure of an air inlet pipe of an air filter. The testing device for determining the resonant cavity structure of the air inlet pipe of the air filter comprises the air inlet pipe (1) and a resonant cavity (2), and the resonant cavity (2) is communicated with the air inlet pipe (1) through a plurality of communicating holes (3). The testing device for determining the resonant cavity structure of the air inlet pipe of the air filter further comprises filler used for filling part of the size of the resonant cavity (2) and/or parts of the communicating holes (3). According to the testing device for determining the resonant cavity structure of the air inlet pipe of the air filter, the resonant cavity is communicated with the air inlet pipe through the communicating holes, in the testing process, the size of the resonant cavity and/or the number of the communicating holes can be changed by additionally arranging or removing the filler so that the noise elimination frequency of the resonant cavity can be corrected, and thus the structure of the resonant cavity can be determined; the testing cost is low, the period is short, and the development progress of vehicles is greatly accelerated.
Description
Technical field
The present invention relates to vehicular field, particularly, relating to a kind of testing apparatus for determining air filter air inlet pipe cavity resonator structures.
Background technique
Along with the development of automobile, people require also more and more higher to the ride quality of automobile, and noise and vibration is the key factor affecting comfort level, and noise is mainly derived from air inlet and the exhaust of motor.
In vehicle complete vehicle development process, in order to reduce induction noise and Measurement accuracy noise frequency, the suction tude exemplar with denoising structure in test, can be adopted to measure.In test, suction tude exemplar used adopts nurse hertz acoustic wave filter structure suddenly, and as shown in Figure 1, this test suction tude exemplar comprises suction tude 101 resonant cavity 102, and wherein resonant cavity 102 was communicated with suction tude 101 by a connecting tube 103.
Because frequency of noise elimination is directly proportional to the aperture of connecting tube, be inversely proportional to the volume of resonant cavity, the length of connecting tube, and resonant cavity in layout due to by spacial influence, its profile and volume majority are determined.Therefore, in induction noise test, after suction tude exemplar makes, the frequency of noise elimination of resonant cavity is determined, can not carry out accurately revising with the structure accurately determining resonant cavity to frequency of noise elimination in process of the test.In order to accurately determine the frequency of noise elimination (i.e. the structure of resonant cavity) of resonant cavity, just need the test suction tude exemplar making multiple different size to carry out noise testing respectively, so not only costly, and the cycle is long.
Summary of the invention
The object of this invention is to provide a kind of testing apparatus for determining air filter air inlet pipe cavity resonator structures, this is used for determining that the testing apparatus of air filter air inlet pipe cavity resonator structures accurately can be revised the frequency of noise elimination of resonant cavity in noise test, accurately to determine the structure of resonant cavity.
To achieve these goals, the invention provides a kind of testing apparatus for determining air filter air inlet pipe cavity resonator structures, described for determining that the testing apparatus of air filter air inlet pipe cavity resonator structures comprises suction tude resonant cavity, described resonant cavity is communicated with described suction tude by multiple intercommunicating pore, and the described testing apparatus for determining air filter air inlet pipe cavity resonator structures also comprises the packing of the described intercommunicating pore of partial volume and/or part for filling described resonant cavity.
Preferably, described resonant cavity is surrounded by the upper shell removably connected and lower shell body.
Preferably, described lower shell body is connected with described suction tude outer wall, and described intercommunicating pore to be arranged on described lower shell body and to run through described suction tude outer wall.
Preferably, described resonant cavity comprises the different sub-chamber of multiple volume, the plurality of sub-chamber, by being arranged on forming for the baffle for separating separating described resonant cavity on described upper shell and/or described lower shell body, all has multiple described intercommunicating pore in each described sub-chamber.
Preferably, the number of the described intercommunicating pore in multiple described sub-chamber is different.
Preferably, the aperture of the described intercommunicating pore in multiple described sub-chamber is different.
Preferably, described packing comprises for filling described sub-chamber to change the first packing of the empty volume of described sub-chamber.
Preferably, described packing comprises and fills object for second of removably intercommunicating pore described in shutoff.
Preferably, described for determining that the testing apparatus of air filter air inlet pipe cavity resonator structures comprises for the L shape connecting tube for connecting described suction tude and air filter, described resonant cavity is arranged in the part connected with described suction tude of described L shape connecting tube.
Preferably, described suction tude outer wall is arranged with fix band.
Testing apparatus for determining air filter air inlet pipe cavity resonator structures provided by the invention, by multiple intercommunicating pore, described resonant cavity is communicated with described suction tude, in the process of test, by setting up or remove packing to the number of the volume and/or described intercommunicating pore that change described resonant cavity, to revise the frequency of noise elimination of resonant cavity, thus determine the structure of resonant cavity, testing cost is low, the cycle is short, greatly accelerates the development progress of vehicle.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is the structural representation of test suction tude exemplar in prior art;
Fig. 2 is the structural representation of the testing apparatus for determining air filter air inlet pipe cavity resonator structures of embodiment of the present invention;
Fig. 3 be embodiment of the present invention for determining that the structural representation after resonant cavity upper shell removed by the testing apparatus of air filter air inlet pipe cavity resonator structures.
Description of reference numerals
1, suction tude; 1a, suction port 2, resonant cavity; 3, intercommunicating pore;
4, sub-chamber; 5, L shape connecting tube; 51, the first pipeline section 52, second pipeline section
52a, engagement portion 6, fix band; 7, dividing plate; 8, packing.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In the present invention, when not doing contrary explanation, the noun of locality such as " upper and lower, left and right " of use typically refers to reference to upper and lower, left and right shown in the drawings; " inside and outside " refers to profile inside and outside relative to each parts itself.
See Fig. 2 and Fig. 3, the invention provides a kind of testing apparatus for determining air filter air inlet pipe cavity resonator structures, described for determining that the testing apparatus of air filter air inlet pipe cavity resonator structures comprises suction tude 1 resonant cavity 2, described resonant cavity 2 is communicated with described suction tude 1 by multiple intercommunicating pore 3, the number of intercommunicating pore 3 can be arranged according to the frequency of noise elimination of required resonant cavity 2, such as 50,100 or 200.The described testing apparatus for determining air filter air inlet pipe cavity resonator structures also comprises the packing 8 of the described intercommunicating pore 3 of partial volume and/or part for filling described resonant cavity 2.
Testing apparatus for determining air filter air inlet pipe cavity resonator structures provided by the invention, by multiple intercommunicating pore 3, described resonant cavity 2 is communicated with described suction tude 1, in the process of test, by setting up or remove packing 8 to the number of the volume and/or intercommunicating pore 3 that change described resonant cavity 2, to revise the frequency of noise elimination of resonant cavity 2, thus determine the structure of resonant cavity 2, testing cost is low, the cycle is short, greatly accelerates the development progress of vehicle.
Particularly, suction tude 1 has suction port 1a, and this suction port 1a is communicated with air, and the gas in air is entered in suction tude 1 by this suction port 1a.
The step adopting the testing apparatus for determining air filter air inlet pipe cavity resonator structures provided by the invention to carry out testing is:
(1) check vehicles state, and confirm that car load component are recent design state, each link connects closely, meets matching requirements;
(2) in the suction port of the air inlet pipeline before former air filter and operator cabin, (such as driver place, copilot place, passenger place etc.) arrange noise transducer;
(3) car load carries out the noise testing under each operating mode, extracts noise pattern;
(4) air inlet pipeline before changing former air filter is the testing apparatus for determining air filter air inlet pipe cavity resonator structures of the present invention, the position of the suction port 1a place sensor of adjustment suction tude 1;
(5) noise testing is carried out to car load, extract noise pattern;
(6) noise pattern in the noise pattern obtained in step (3) and step (5) is contrasted;
(7) according to comparing result, the adjustment volume of resonant cavity 2 and the quantity of intercommunicating pore 3;
(8) step (5) is repeated to (7), until noise result meets the requirements;
(9) structural parameter of satisfactory resonant cavity 2 are recorded, i.e. the volume of resonant cavity 2, the number of intercommunicating pore 3.
According to the result recorded in step (9), the obtained air inlet noise reducing pipe with best noise reduction.
Conveniently in test process, revise frequency of noise elimination, described resonant cavity 2 is surrounded by the upper shell removably connected and lower shell body.The convenient partial volume of being filled resonant cavity 2 in test process by packing 8 of this demountable structure of resonant cavity 2, or blocking portion intercommunicating pore 3 is to change the parameter of resonant cavity 2, to obtain the cavity resonator structures with best noise reduction.
Particularly, described lower shell body is connected with described suction tude 1 outer wall, and described intercommunicating pore 3 to be arranged on described lower shell body and to run through described suction tude 1 outer wall.Preferably, described intercommunicating pore 3 is uniformly distributed on described lower shell body, contributes to obtaining accurate test result.
In order to expand the frequency of noise elimination scope of the resonant cavity 2 of the testing apparatus for determining air filter air inlet pipe cavity resonator structures of the present invention, described resonant cavity 2 comprises the different sub-chamber of multiple volume 4, the plurality of sub-chamber 4 by being arranged on being separated for the dividing plate 7 separating described resonant cavity 2 on described upper shell and/or described lower shell body, and all has multiple described intercommunicating pore 3 in each described sub-chamber 4.The volume of sub-chamber 4 and number need according to noise reduction and determine.Particularly, roughly can estimate volume range and the number of sub-chamber 4 needed for this vehicle in advance, the number of sub-chamber 4 volume and sub-chamber 4 that then arrange this testing apparatus is all greater than the maximum value of estimation scope, so that change the structure of resonant cavity 2 by adding packing 8.
In mode of execution shown in Fig. 3, sub-chamber 4 is three, and from top to bottom, the volume of sub-chamber 4 increases successively, and this resonant cavity 2 structure can the noise of three different frequency sections.
Further, the number of the described intercommunicating pore 3 in multiple described sub-chamber 4 is different, thus the frequency of noise elimination in each sub-chamber 4 is different, because this frequency of noise elimination for the resonant cavity 2 determining the testing apparatus of air filter air inlet pipe cavity resonator structures equals the frequency of noise elimination sum of each sub-chamber 4, therefore, the number of the described intercommunicating pore 3 in multiple sub-chamber 4 being set to difference, can being expanded this for determining the extent of amendment to frequency of noise elimination of the testing apparatus of air filter air inlet pipe cavity resonator structures.
Preferably, the aperture of the described intercommunicating pore 3 in multiple described sub-chamber 4 is different, due to frequency of noise elimination relevant with aperture (positive correlation), the aperture of the described intercommunicating pore 3 therefore in multiple described sub-chamber 4 is different, can expand this too for determining the extent of amendment of testing apparatus to frequency of noise elimination of air filter air inlet pipe cavity resonator structures.
Preferably, the aperture of the multiple intercommunicating pores 3 in each sub-chamber 4 is identical, like this, by calculating the number of the intercommunicating pore 3 of packing 8 shutoff, just can determine the changes values of the frequency of noise elimination of resonant cavity 2.
Preferably, described packing 8 comprises for filling described sub-chamber 4 to change the first packing of the empty volume of described sub-chamber 4.First packing can be the materials such as sponge, cloth group.
Preferably, described packing 8 comprises the second packing for removably intercommunicating pore 3 described in shutoff, and the second packing can be sheet rubber, or cloth group etc.
Preferably, described for determining that the testing apparatus of air filter air inlet pipe cavity resonator structures comprises the L shape connecting tube 5 for connecting described suction tude 1 and air filter, described resonant cavity 2 is arranged in the part connected with described suction tude 1 of described L shape connecting tube 5.This L shape connecting tube 5 facilitates suction tude 1 to be connected with air filter.
Particularly, described L shape connecting tube 5 comprises the first pipeline section 51 and second pipeline section 52 connected vertically with described first pipeline section 51, described first pipeline section 51 is connected with described suction tude 1, described resonant cavity 2 is arranged on described first pipeline section 51, described second pipeline section 52 outer wall is provided with wedge shape engagement portion 52a, air filter is provided with the draw-in groove matched with this wedge shape engagement portion 52a, by be inserted by this wedge shape engagement portion 52a in this draw-in groove thus to be connected with the second pipeline section 52 by air filter.
In test process, upper shell can be disassembled, by adopting several intercommunicating pores 3 of the second packing shutoff or add the first packing in resonant cavity 2, revise noise elimination parameter, facilitate the induction noise in noise test to regulate.
Described suction tude 1 outer wall is arranged with fix band 6, and during test, this fix band 6, for fixing this suction tude 1, prevents the shake of suction tude 1 in test process, and affects test result.
The step adopting the testing apparatus for determining air filter air inlet pipe cavity resonator structures provided by the invention to carry out testing is:
(1) check vehicles state, and confirm that car load component are recent design state, each link connects closely, meets matching requirements;
(2) in the suction port of the air inlet pipeline before former air filter and operator cabin, (such as driver place, copilot place, passenger place etc.) arrange noise transducer;
(3) car load carries out the noise testing under each operating mode, extracts noise pattern;
(4) air inlet pipeline before changing former air filter is the testing apparatus for determining air filter air inlet pipe cavity resonator structures of the present invention, the position of the suction port 1a place sensor of adjustment suction tude 1;
(5) noise testing is carried out to car load, extract noise pattern;
(6) noise pattern in the noise pattern obtained in step (3) and step (5) is contrasted;
(7) according to comparing result, the quantity of the intercommunicating pore 3 in the volume of each sub-chamber 4 and each sub-chamber 4 is adjusted;
(8) step (5) is repeated to (7), until noise result meets the requirements;
(9) structural parameter of satisfactory resonant cavity 2 are recorded, i.e. the volume of each sub-chamber 4, the number of intercommunicating pore 3.
According to the result recorded in step (9), the obtained air inlet noise reducing pipe with best noise reduction.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technological scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each the concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible compound mode.
In addition, also can carry out combination in any between various different mode of execution of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. one kind for determining the testing apparatus of air filter air inlet pipe cavity resonator structures, it is characterized in that, described for determining that the testing apparatus of air filter air inlet pipe cavity resonator structures comprises suction tude (1) resonant cavity (2), described resonant cavity (2) is communicated with described suction tude (1) by multiple intercommunicating pore (3), and the described testing apparatus for determining air filter air inlet pipe cavity resonator structures also comprises the packing (8) of partial volume for filling described resonant cavity (2) and/or the described intercommunicating pore of part (3).
2. the testing apparatus for determining air filter air inlet pipe cavity resonator structures according to claim 1, is characterized in that, described resonant cavity (2) is surrounded by the upper shell removably connected and lower shell body.
3. the testing apparatus for determining air filter air inlet pipe cavity resonator structures according to claim 2, it is characterized in that, described lower shell body is connected with described suction tude (1) outer wall, and described intercommunicating pore (3) to be arranged on described lower shell body and to run through described suction tude (1) outer wall.
4. the testing apparatus for determining air filter air inlet pipe cavity resonator structures according to claim 2, it is characterized in that, described resonant cavity (2) comprises the different sub-chamber of multiple volume (4), the plurality of sub-chamber (4), by being arranged on being separated for the dividing plate (7) separating described resonant cavity (2) on described upper shell and/or described lower shell body, all has multiple described intercommunicating pore (3) in each described sub-chamber (4).
5. the testing apparatus for determining air filter air inlet pipe cavity resonator structures according to claim 4, is characterized in that, the number of the described intercommunicating pore (3) in multiple described sub-chamber (4) is different.
6. the testing apparatus for determining air filter air inlet pipe cavity resonator structures according to claim 4 or 5, is characterized in that, the aperture of the described intercommunicating pore (3) in multiple described sub-chamber (4) is different.
7. the testing apparatus for determining air filter air inlet pipe cavity resonator structures according to claim 4, it is characterized in that, described packing (8) comprises for filling described sub-chamber (4) to change the first packing of the empty volume of described sub-chamber (4).
8. the testing apparatus for determining air filter air inlet pipe cavity resonator structures according to claim 1, is characterized in that, described packing (8) comprises the second packing for removably intercommunicating pore described in shutoff (3).
9. the testing apparatus for determining air filter air inlet pipe cavity resonator structures according to claim 1, it is characterized in that, described for determining that the testing apparatus of air filter air inlet pipe cavity resonator structures comprises the L shape connecting tube (5) for connecting described suction tude (1) and air filter, described resonant cavity (2) is arranged in the part connected with described suction tude (1) of described L shape connecting tube (5).
10. the testing apparatus for determining air filter air inlet pipe cavity resonator structures according to claim 9, is characterized in that, described suction tude (1) outer wall is arranged with fix band (6).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310685296.0A CN104712470A (en) | 2013-12-13 | 2013-12-13 | Testing device for determining resonant cavity structure of air inlet pipe of air filter |
| PCT/CN2014/087337 WO2015085810A1 (en) | 2013-12-13 | 2014-09-24 | Testing device for determining resonant cavity structure of inlet pipe of air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310685296.0A CN104712470A (en) | 2013-12-13 | 2013-12-13 | Testing device for determining resonant cavity structure of air inlet pipe of air filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104712470A true CN104712470A (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310685296.0A Pending CN104712470A (en) | 2013-12-13 | 2013-12-13 | Testing device for determining resonant cavity structure of air inlet pipe of air filter |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104712470A (en) |
| WO (1) | WO2015085810A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673576A (en) * | 2016-03-31 | 2016-06-15 | 无锡二橡胶股份有限公司 | Sound quality adjuster for air outlet side of compressor of exhaust gas turbine supercharger |
| CN108081908A (en) * | 2017-12-19 | 2018-05-29 | 东风汽车集团有限公司 | A kind of air-conditioning assembly resonant cavity denoising structure |
| CN108331686A (en) * | 2017-01-20 | 2018-07-27 | 铃木株式会社 | The inlet duct of internal combustion engine |
| CN108615522A (en) * | 2018-04-26 | 2018-10-02 | 重庆大学 | A kind of multiple resonant frequency collateral branch type resonance exhaust silencers of single-chamber |
| CN113958435A (en) * | 2021-11-16 | 2022-01-21 | 安徽江淮汽车集团股份有限公司 | Vehicle air intake system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204317A (en) * | 2016-12-19 | 2018-06-26 | 上海欧菲滤清器有限公司 | Admission line |
| CN107559114A (en) * | 2017-10-31 | 2018-01-09 | 天津市宇龙昊天汽车滤清器有限公司 | Compact-sized air filter air inlet pipe road assembly |
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| US5979598A (en) * | 1996-04-22 | 1999-11-09 | Woco Franz-Josef Wolf & Co. | Intake silencer for motor vehicle |
| CN201177561Y (en) * | 2008-03-24 | 2009-01-07 | 重庆长安汽车股份有限公司 | Frequency adjustable type air inlet silencing apparatus test device |
| WO2010086719A1 (en) * | 2009-01-30 | 2010-08-05 | Eaton Corporation | Broadband noise resonator |
| CN202756138U (en) * | 2012-08-11 | 2013-02-27 | 郭荣 | Silencer capable of simultaneously eliminating noises of wide band and narrow band |
| CN103097710A (en) * | 2010-09-15 | 2013-05-08 | 康蒂泰克Mgw有限公司 | Fluid line comprising a resonator |
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| DE19943246B4 (en) * | 1999-09-10 | 2006-06-14 | Daimlerchrysler Ag | Silencer for the reduction of air noise in the intake manifold of internal combustion engines |
| CN201090337Y (en) * | 2007-10-30 | 2008-07-23 | 上海海马汽车研发有限公司 | Resonant cavity and component |
| CN102644531B (en) * | 2011-02-16 | 2015-02-25 | 曼·胡默尔有限公司 | Resonant system |
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2013
- 2013-12-13 CN CN201310685296.0A patent/CN104712470A/en active Pending
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2014
- 2014-09-24 WO PCT/CN2014/087337 patent/WO2015085810A1/en active Application Filing
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| US5979598A (en) * | 1996-04-22 | 1999-11-09 | Woco Franz-Josef Wolf & Co. | Intake silencer for motor vehicle |
| CN201177561Y (en) * | 2008-03-24 | 2009-01-07 | 重庆长安汽车股份有限公司 | Frequency adjustable type air inlet silencing apparatus test device |
| WO2010086719A1 (en) * | 2009-01-30 | 2010-08-05 | Eaton Corporation | Broadband noise resonator |
| CN102369359A (en) * | 2009-01-30 | 2012-03-07 | 伊顿公司 | Broadband noise resonator |
| CN103097710A (en) * | 2010-09-15 | 2013-05-08 | 康蒂泰克Mgw有限公司 | Fluid line comprising a resonator |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673576A (en) * | 2016-03-31 | 2016-06-15 | 无锡二橡胶股份有限公司 | Sound quality adjuster for air outlet side of compressor of exhaust gas turbine supercharger |
| CN105673576B (en) * | 2016-03-31 | 2019-02-01 | 无锡二橡胶股份有限公司 | Go out the sound quality adjuster of gas side for exhaust-driven turbo-charger exhaust-gas turbo charger compressor |
| CN108331686A (en) * | 2017-01-20 | 2018-07-27 | 铃木株式会社 | The inlet duct of internal combustion engine |
| CN108331686B (en) * | 2017-01-20 | 2019-12-10 | 铃木株式会社 | Air intake device for internal combustion engine |
| CN108081908A (en) * | 2017-12-19 | 2018-05-29 | 东风汽车集团有限公司 | A kind of air-conditioning assembly resonant cavity denoising structure |
| CN108615522A (en) * | 2018-04-26 | 2018-10-02 | 重庆大学 | A kind of multiple resonant frequency collateral branch type resonance exhaust silencers of single-chamber |
| CN108615522B (en) * | 2018-04-26 | 2023-04-28 | 重庆大学 | Single-cavity multi-resonant-frequency bypass type resonant muffler |
| CN113958435A (en) * | 2021-11-16 | 2022-01-21 | 安徽江淮汽车集团股份有限公司 | Vehicle air intake system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015085810A1 (en) | 2015-06-18 |
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