CN204458126U - A kind of supercharged engine intake noise reduction structure - Google Patents
A kind of supercharged engine intake noise reduction structure Download PDFInfo
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- CN204458126U CN204458126U CN201420721963.6U CN201420721963U CN204458126U CN 204458126 U CN204458126 U CN 204458126U CN 201420721963 U CN201420721963 U CN 201420721963U CN 204458126 U CN204458126 U CN 204458126U
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- resonant cavity
- perforated pipe
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Abstract
The utility model relates to a kind of supercharged engine intake noise reduction structure, solves existing air admission silencing structure of automobile or air-flow freely, maybe cannot not eliminate broadband noise problem.This device comprises the suction tude, air filter and the pressurized machine that connect according to airintake direction, it is characterized in that: between described air filter and pressurized machine, be provided with silencing apparatus, silencing apparatus two ends are connected with air filter and pressurized machine respectively by air induction hose, silencing apparatus comprises perforated pipe and is set in the sleeve pipe outside perforated pipe, multiple not of uniform size, separate resonant cavity is become by baffle for separating between internal surface of sleeve pipe and perforated pipe outer wall, tube wall and each resonant cavity corresponding part of perforated pipe evenly offer pore respectively, and the gas cell distribution density that each resonant cavity is corresponding is inconsistent.The pore that the utility model adopts the corresponding distribution density of resonant cavity not of uniform size to differ, produces the effect in parallel of the Helmholtz resonator of multiple elimination different frequency range noise, can eliminate the broadband noise that pressurized machine produces; Silencing apparatus adopts straight-through perforated pipe, little on the impact of air current flow, ensures the smooth and easy of air inlet.
Description
Technical field
The utility model relates to a kind of automobile air inlet system, particularly a kind of supercharged engine intake noise reduction structure.
Background technique
Along with the development of automotive industry, turbocharging internal-combustion engines is more and more applied on passenger car, for optimizing the NVH(noise of car load, vibration and sound vibration roughness) performance, improve driving comfortability, silene system is increased in gas handling system, during for eliminating pressurized machine operation, producing and the noise propagated, the acoustic quality of car load can be improved.The noise elimination structure that traditional gas handling system adopts, can only eliminate the noise of some narrower frequency range, pressurized machine is run to the broadband noise produced, can not play good eradicating efficacy.
As the Chinese patent CN201972764U of bulletin on September 14th, 2011, name is called a kind of auxiliary power unit muffler utilizing non-local reaction sound to serve as a contrast principle, this device comprises several resonant cavity, transfer tube, nonmetal thermal shields of separating, resonant cavity comprises microperforated panel, sound insulationg board and cylindrical shell outer tube, microperforated panel and the outer effective sound insulationg board of cylindrical shell support, transfer tube and microperforated panel eccentric gasket support, the coated outer surface at cylindrical shell outer tube of nonmetal thermal shield, the bottom of transfer tube and cylindrical shell outer tube arranges row's fistulae.This device utilizes microporous metallic plate and sound insulationg board jointly exhaust noise silencing cylindrical shell to be divided into several resonant cavities that independently absorb sound.Although this device is along the multiple microporous metallic plate of install pipeline and resonant cavity, the microperforated panel of multiple resonant cavity and correspondence is identical size, certain band noise of elimination can play good Overlay, but be unfavorable for the elimination of broadband noise.
For another example Chinese patent CN102392717A disclosed in 28 days March in 2012, name is called a kind of automotive muffler of five chambers, although this device is provided with the resonant chamber of different length to eliminate broadband noise, but airflow line being divided into multistage mutually can not the pipeline of direct connection, air current flow is not smooth, affects air current flow.If this device is applied to automotive air intake, the especially air inlet of turbocharging internal-combustion engines automobile, air current flow is not freely enough to the air inlet effect affecting Integral automobile.
Summary of the invention
Not only the purpose of this utility model is to solve existing air admission silencing structure of automobile or air-flow freely, maybe cannot not eliminate broadband noise problem, provides a kind of and ensures that air-flow is unobstructed, but also can eliminate the supercharged engine intake noise reduction structure of broadband noise.
The utility model solves the technological scheme that its technical problem adopts: a kind of supercharged engine intake noise reduction structure, comprise the suction tude connected according to airintake direction, air filter and pressurized machine, silencing apparatus is provided with between described air filter and pressurized machine, silencing apparatus two ends are connected with air filter and pressurized machine respectively by air induction hose, silencing apparatus comprises perforated pipe and is set in the sleeve pipe outside perforated pipe, become multiple not of uniform size by baffle for separating between internal surface of sleeve pipe and perforated pipe outer wall, separate resonant cavity, tube wall and each resonant cavity corresponding part of perforated pipe evenly offer pore respectively, the gas cell distribution density that each resonant cavity is corresponding is inconsistent.The pore of silencing apparatus different distributions density and multiple resonant cavity not of uniform size form the parallel connection of the Helmholtz resonator of multiple elimination different frequency range noise, the broadband noise that pressurized machine produces can be eliminated, perforated pipe is simple straight tube simultaneously, airflow path is unobstructed, little on the mobilization dynamic impact of charge air flow, air inlet performance can be ensured to greatest extent.
As preferably, the air vent aperture that each resonant cavity is corresponding is inconsistent, and the air vent aperture that same resonant cavity is corresponding is identical.Varying aperture can affect the deadening frequency band of resonant cavity and pore combination.
As preferably, each resonant cavity volume increases gradually along airintake direction, and the gas cell distribution density that each resonant cavity is corresponding diminishes gradually along airintake direction.Resonant cavity and pore arrange the change of Formation rule, reduce the cost that processing is arranged.
As preferably, described sleeve pipe and perforated pipe are plug in structure, dividing plate and perforated pipe one-body molded and be plugged into sleeve pipe one end.Dividing plate and the processing of perforated pipe one, pore position is conveniently determined, sleeve pipe and perforated pipe adopt plug in structure, reduce difficulty of processing.
As preferably, the air induction hose caliber between described air filter and silencing apparatus is greater than the caliber of silencing apparatus inlet end, and silencing apparatus inlet end stretches in air induction hose and forms expansion chamber structure.The caliber change that air-flow enters silencing apparatus from air induction hose forms expansion chamber structure, can play soundproof effect further.
The pore that the utility model adopts the corresponding distribution density of resonant cavity not of uniform size to differ, produces the effect in parallel of the Helmholtz resonator of multiple elimination different frequency range noise, can eliminate the broadband noise that pressurized machine produces; Silencing apparatus adopts straight-through perforated pipe, little on the impact of air current flow, ensures the smooth and easy of air inlet.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is linkage structure schematic diagram before and after silencing apparatus of the present utility model.
Fig. 3 is silencing apparatus internal structure schematic diagram of the present utility model.
In figure: 1. suction tude, 2. air filter, 3. clip, 4. air induction hose, 5. silencing apparatus, 6. pressurized machine, 7. sleeve pipe, 8. perforated pipe, 9. dividing plate, 10. resonant cavity, 11. pores.
Embodiment
Also by reference to the accompanying drawings the utility model is further illustrated below by specific embodiment.
Embodiment: a kind of supercharged engine intake noise reduction structure, as shown in Figure 1.This device is connected with suction tude 1, air filter 2, silencing apparatus 5, pressurized machine 6 in turn along airintake direction.Be connected respectively by air induction hose 4 between air filter and silencing apparatus, between silencing apparatus with pressurized machine, air induction hose end all adopts clip 3 to fix.
As shown in Figure 2 and Figure 3, silencing apparatus 5 is made up of perforated pipe 8 and the sleeve pipe 7 be socketed in outside perforated pipe 8 acoustic wave filter structure.By four dividing plates 9, the space between perforated pipe and sleeve pipe is separated into five resonant cavities 10 between perforated pipe outer wall and internal surface of sleeve pipe, the volume of each resonant cavity increases gradually along airintake direction.On perforated pipe, offer pore 11 accordingly with each resonant cavity, the gas cell distribution density that each resonant cavity is corresponding reduces along airintake direction assembly.
As shown in Figure 2,3, sleeve pipe is three step pipes to the package assembly of silencing apparatus, respectively is small end, middle-end, holds greatly.Sleeve pipe small end inner diameter is consistent with perforated pipe, dividing plate be arranged on the outer wall of perforated pipe and perforated pipe one-body molded, also baffle plate is provided with at the rear of perforated pipe rear-most end dividing plate, the end of perforated pipe to be plugged in sleeve pipe and to be resisted against the step place of sleeve pipe small end and middle-end transition, and the end of the large end of sleeve pipe is resisted against baffle plate place.Sleeve pipe middle-end is divided into the resonant cavity that 3 thickness increase successively by the step of sleeve pipe, dividing plate and baffle plate, will be separated into the resonant cavity that two thickness increase successively by end greatly.Sleeve pipe small end is connected with air filter 2 by air induction hose 4, and the caliber of air induction hose is greater than the caliber of sleeve pipe small end, and sleeve pipe small end inserts in air induction hose and forms expansion chamber structure.
Each resonant cavity and corresponding stomatal limiting value Helmholtz resonator, the change of the corresponding stomatal frequency of resonant cavity sum changes the deadening frequency band of Helmholtz resonator, the Helmholtz resonator that this device is equivalent to five different deadening frequency bands is in parallel, can eliminate the broadband noise that pressurized machine produces.
Claims (5)
1. a supercharged engine intake noise reduction structure, comprise the suction tude connected according to airintake direction, air filter and pressurized machine, it is characterized in that: between described air filter and pressurized machine, be provided with silencing apparatus, silencing apparatus two ends are connected with air filter and pressurized machine respectively by air induction hose, silencing apparatus comprises perforated pipe and is set in the sleeve pipe outside perforated pipe, become multiple not of uniform size by baffle for separating between internal surface of sleeve pipe and perforated pipe outer wall, separate resonant cavity, tube wall and each resonant cavity corresponding part of perforated pipe evenly offer pore respectively, the gas cell distribution density that each resonant cavity is corresponding is inconsistent.
2. a kind of supercharged engine intake noise reduction structure according to claim 1, it is characterized in that: the air vent aperture that each resonant cavity is corresponding is inconsistent, the air vent aperture that same resonant cavity is corresponding is identical.
3. a kind of supercharged engine intake noise reduction structure according to claim 1 and 2, it is characterized in that: each resonant cavity volume increases gradually along airintake direction, the gas cell distribution density that each resonant cavity is corresponding diminishes gradually along airintake direction.
4. a kind of supercharged engine intake noise reduction structure according to claim 1 and 2, is characterized in that: described sleeve pipe and perforated pipe are plug in structure, dividing plate and perforated pipe one-body molded and be plugged into sleeve pipe one end.
5. a kind of supercharged engine intake noise reduction structure according to claim 1 and 2, it is characterized in that: the air induction hose caliber between described air filter and silencing apparatus is greater than the caliber of silencing apparatus inlet end, silencing apparatus inlet end stretches in air induction hose and forms expansion chamber structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420721963.6U CN204458126U (en) | 2014-11-27 | 2014-11-27 | A kind of supercharged engine intake noise reduction structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420721963.6U CN204458126U (en) | 2014-11-27 | 2014-11-27 | A kind of supercharged engine intake noise reduction structure |
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| CN204458126U true CN204458126U (en) | 2015-07-08 |
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| CN201420721963.6U Active CN204458126U (en) | 2014-11-27 | 2014-11-27 | A kind of supercharged engine intake noise reduction structure |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221309A (en) * | 2015-10-23 | 2016-01-06 | 衡阳合力工业车辆有限公司 | A kind of motor and silencer |
| CN106286045A (en) * | 2015-06-23 | 2017-01-04 | 华晨汽车集团控股有限公司 | Engine with supercharger noise reduction gas handling system |
| CN106468211A (en) * | 2015-08-18 | 2017-03-01 | 上海汽车集团股份有限公司 | Automobile, electromotor, the acoustic filter located at supercharger gas outlet and forming method |
| CN107781076A (en) * | 2017-10-23 | 2018-03-09 | 奇瑞汽车股份有限公司 | A kind of noise-reducing structure of air induction hose assembly |
| CN107816595A (en) * | 2017-12-13 | 2018-03-20 | 武汉理工大学 | A kind of not even depth back of the body chamber micropunch muffler pipe in parallel |
| CN108625928A (en) * | 2018-06-14 | 2018-10-09 | 东风小康汽车有限公司重庆分公司 | A kind of muffler and automobile |
| CN108974305A (en) * | 2018-06-27 | 2018-12-11 | 中国船舶重工集团公司第七〇九研究所 | Runner between a kind of side of a ship of resonant silencing |
| CN109356757A (en) * | 2018-12-19 | 2019-02-19 | 安徽江淮汽车集团股份有限公司 | A kind of gas handling system noise elimination structure |
| CN109898308A (en) * | 2017-12-08 | 2019-06-18 | 无锡小天鹅股份有限公司 | Dryer and its cooling wind air inlet structure |
| CN111512038A (en) * | 2017-12-20 | 2020-08-07 | 梦达驰德国有限公司 | Wide-band muffler for motor vehicle engine |
| CN112081694A (en) * | 2019-06-14 | 2020-12-15 | 曼胡默尔滤清器（上海）有限公司 | Composite silencer of air inlet system |
| CN112177819A (en) * | 2019-07-05 | 2021-01-05 | 丰田纺织株式会社 | Intake pipe for internal combustion engine |
| CN112443433A (en) * | 2019-09-05 | 2021-03-05 | 上海索菲玛汽车滤清器有限公司 | Air filter |
-
2014
- 2014-11-27 CN CN201420721963.6U patent/CN204458126U/en active Active
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286045A (en) * | 2015-06-23 | 2017-01-04 | 华晨汽车集团控股有限公司 | Engine with supercharger noise reduction gas handling system |
| CN106468211A (en) * | 2015-08-18 | 2017-03-01 | 上海汽车集团股份有限公司 | Automobile, electromotor, the acoustic filter located at supercharger gas outlet and forming method |
| CN105221309B (en) * | 2015-10-23 | 2018-03-23 | 衡阳合力工业车辆有限公司 | A kind of engine and silencing apparatus |
| CN105221309A (en) * | 2015-10-23 | 2016-01-06 | 衡阳合力工业车辆有限公司 | A kind of motor and silencer |
| CN107781076A (en) * | 2017-10-23 | 2018-03-09 | 奇瑞汽车股份有限公司 | A kind of noise-reducing structure of air induction hose assembly |
| CN109898308A (en) * | 2017-12-08 | 2019-06-18 | 无锡小天鹅股份有限公司 | Dryer and its cooling wind air inlet structure |
| CN107816595A (en) * | 2017-12-13 | 2018-03-20 | 武汉理工大学 | A kind of not even depth back of the body chamber micropunch muffler pipe in parallel |
| CN107816595B (en) * | 2017-12-13 | 2024-04-09 | 武汉理工大学 | Parallel unequal-depth sub-back cavity micro-perforated pipe muffler |
| CN111512038B (en) * | 2017-12-20 | 2022-06-14 | 梦达驰德国有限公司 | Wide-band muffler for motor vehicle engine |
| CN111512038A (en) * | 2017-12-20 | 2020-08-07 | 梦达驰德国有限公司 | Wide-band muffler for motor vehicle engine |
| CN108625928A (en) * | 2018-06-14 | 2018-10-09 | 东风小康汽车有限公司重庆分公司 | A kind of muffler and automobile |
| CN108974305A (en) * | 2018-06-27 | 2018-12-11 | 中国船舶重工集团公司第七〇九研究所 | Runner between a kind of side of a ship of resonant silencing |
| CN109356757A (en) * | 2018-12-19 | 2019-02-19 | 安徽江淮汽车集团股份有限公司 | A kind of gas handling system noise elimination structure |
| CN112081694A (en) * | 2019-06-14 | 2020-12-15 | 曼胡默尔滤清器（上海）有限公司 | Composite silencer of air inlet system |
| CN112177819B (en) * | 2019-07-05 | 2022-04-12 | 丰田纺织株式会社 | Intake pipe for internal combustion engine |
| CN112177819A (en) * | 2019-07-05 | 2021-01-05 | 丰田纺织株式会社 | Intake pipe for internal combustion engine |
| CN112443433A (en) * | 2019-09-05 | 2021-03-05 | 上海索菲玛汽车滤清器有限公司 | Air filter |
| CN112443433B (en) * | 2019-09-05 | 2024-02-27 | 上海索菲玛汽车滤清器有限公司 | Air filter |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |