JPS6030463A - Engine suction noise reducing system - Google Patents
Engine suction noise reducing systemInfo
- Publication number
- JPS6030463A JPS6030463A JP13808283A JP13808283A JPS6030463A JP S6030463 A JPS6030463 A JP S6030463A JP 13808283 A JP13808283 A JP 13808283A JP 13808283 A JP13808283 A JP 13808283A JP S6030463 A JPS6030463 A JP S6030463A
- Authority
- JP
- Japan
- Prior art keywords
- resonator
- resonators
- intake passage
- pipe
- connecting pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007423 decrease Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000013316 zoning Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/02—Silencing apparatus characterised by method of silencing by 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
- F02M35/1255—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2490/00—Structure, disposition or shape of gas-chambers
- F01N2490/14—Dead or resonance chambers connected to gas flow tube by relatively short side-tubes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はエンジンの吸気通路の途中にレゾネータを接続
して、吸気騒音を低減させろ吸気騒音低減装置に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an intake noise reduction device that reduces intake noise by connecting a resonator to the middle of an intake passage of an engine.
０η記レゾネータは吸気系で発生する吸気７１音の内レ
ゾネータの固有振動数ｔζ相当する周波数の音を共鳴さ
せて減衰させる作用を営むものであるので、複数の周波
数領域の騒音を低減させるには、複数の容量の異なるレ
ゾネータを吸気通路）ζ接続する必要がある。The resonator has the function of resonating and attenuating the sound of the frequency corresponding to the natural frequency tζ of the resonator among the 71 intake sounds generated in the intake system. Therefore, in order to reduce noise in multiple frequency ranges, multiple It is necessary to connect resonators with different capacities in the intake passage)ζ.
かかる吸気騒音低減装置として、実聞昭５８−３５６６
６号公報に掲載される先行技術がある。ところがこの先
行技術では、吸気通路に平行に複数のレゾネータを配置
しているので、配置空間の制約を受け、設計が困難とな
る。As such an intake noise reduction device, Jitmon Sho 58-3566
There is a prior art published in Publication No. 6. However, in this prior art, since a plurality of resonators are arranged in parallel to the intake passage, the arrangement space is restricted, making the design difficult.
又低減させたい騒音の周波数とレゾネータの容量、接続
パイプの断面積、接続パイプの長さとは次の関係にある
ことが好ましいが、上記先行技術は接続パイプの長さが
同一であるので、この条件を充足していないという欠点
もある。In addition, it is preferable that the frequency of the noise to be reduced, the capacity of the resonator, the cross-sectional area of the connecting pipe, and the length of the connecting pipe have the following relationship; however, in the prior art described above, since the connecting pipes have the same length, There is also the drawback that the conditions are not met.
Ｄｔって上記閃係を満足するように、前記先行技術の１
吸気騒音低減装置を改善すると第１図に示すようになる
。そしてこの図から明らかなように、高周波域用レゾネ
ータ（ａ）の接続パイプ（ｂ）は広断面禎、短寸となる
のに対し、低周波域用レゾネータ（Ｃ）の接続パイプ（
ｄ）は狭１１ｊ１面積、長寸となり、中周波成用レゾネ
ータ（ｅ）の接続パイプ（ｆ）は両者の中間となる。従
ってこの第１図に示すものは、前記先行技術に対し騒音
低減効果を向上させることができるものの、その配置空
間の制約が一層厳しくなり、エンジンルーム内に大きな
デッドスペースを作るという欠点が生ずる。1 of the prior art so that Dt satisfies the above condition.
When the intake noise reduction device is improved, it becomes as shown in FIG. As is clear from this figure, the connection pipe (b) of the resonator for high frequency range (a) has a wide cross-section and short length, whereas the connection pipe (b) of the resonator for low frequency range (C)
d) has a narrow area of 11j1 and is long, and the connecting pipe (f) of the medium frequency generating resonator (e) is located between the two. Therefore, although the system shown in FIG. 1 can improve the noise reduction effect over the prior art, it has the disadvantage that the space in which it is installed is more restricted and a large dead space is created in the engine room.
本発明は上記先行技術及び第１図に示す改善し０の有す
る諸欠点を一挙に解消することを目的とし、エンジンの
吸気通路に複数の容量の異なるレゾネータを接続したエ
ンジンの吸気騒音低減装置１゛イにおいて、１」ｌ記ｄ
数のレゾネータを吸気通ｙ′６に直交する方向に重ねた
状態で配置し、且つこれらのレゾネータが、吸気通路に
近いものから遠くのものに至るに従って、順次容量及び
接続パイプの長さが増大すると共に接続ツマイブの断面
積が減少するように形成されたことを特徴とする。The present invention aims to eliminate the various drawbacks of the above-mentioned prior art and the improvement shown in FIG. In A, 1"l, d
A number of resonators are arranged in a stacked manner in a direction perpendicular to the intake passage y'6, and the capacity and length of the connecting pipe increase sequentially as these resonators are placed from those closest to the intake passage to those further away from the intake passage. At the same time, the cross-sectional area of the connecting tube is reduced.
以下本発明を図面に示す実施例に基き具体的に説明する
。The present invention will be specifically described below based on embodiments shown in the drawings.
第２図に示す実施例は高周波域用レゾネータ（１）、中
周波成用レゾネータ（２）及び低周波域用レゾネータ（
３）の３種類の容量の異なるレゾネータを、クールエア
ダクト、エアクリーナのノーズなどの吸気通路（４）に
接続している。高周波域用レゾネータ（１）は容量が最
小、接続パイプ（５）の長さが最小、接続パイプ（５）
のＭ面積が最大である。The embodiment shown in Fig. 2 includes a high frequency range resonator (1), a medium frequency range resonator (2), and a low frequency range resonator (
Three types of resonators with different capacities are connected to an intake passage (4) such as a cool air duct or an air cleaner nose. The resonator for high frequency range (1) has the smallest capacity, the length of the connecting pipe (5) is the smallest, and the connecting pipe (5)
The M area of is the maximum.
他方、低周波域用レゾネータ（３）は容量が最大、接続
パイプ（７）の長さが最大、接続パイプ（７）の断面積
が最小である。中周波成用レゾネータ（２）は、容量、
接続パイプ（６）の長さ及び断面積がｆｘ”＋Ｊ記直両
レゾネータ１） （３）の中間にある。On the other hand, the low frequency range resonator (3) has the maximum capacity, the maximum length of the connection pipe (7), and the minimum cross-sectional area of the connection pipe (7). The medium frequency resonator (2) has a capacity,
The length and cross-sectional area of the connecting pipe (6) are between fx''+J and the direct resonator 1) (3).
これらレゾネータ（１） （２） （３）は吸気通路（
４）に直交する方向に重ねた状態で配置され、吸気通路
（４）に最も近い位置に高周波域用レゾネータ（１）を
、最も遠い位置に低周波域用レゾネータ（３）を配する
と共に、両レゾネータ（１）（３）の中間に中周波成用
レゾネータ（２）を配している。These resonators (1) (2) (3) are connected to the intake passage (
4) are arranged in a stacked state in a direction orthogonal to the air intake passage (4), with a high frequency range resonator (1) disposed closest to the intake passage (4) and a low frequency range resonator (3) disposed farthest from the intake passage (4). A medium frequency generating resonator (2) is arranged between the two resonators (1) and (3).
又これらレゾネータ（１） （２） （３）の接続パイ
プ（５） （６）（７）は同心上に配設され４、低周波
域用レゾネータ（３）の接続パイプ（７）は中周波成用
レゾネータ（２）及びその接ん−パイプ（６）を貫通し
て、吸気通路（４）に達し、中周波成用レゾネータ（２
）の接続パイプ（６）はｉｉ’ｉｉ周波域用レゾネータ
（１）及びその接続パイプ（５）を貫通して吸気通路（
４）に達している。高周波域用レゾネータ（１）の接続
パイプ（５）は適当な手段によって吸気Ｊ１１Ｊ路（４
）を構成するクールエアダクトなどの管体（４ａ）に接
続されている。The connecting pipes (5), (6), and (7) of these resonators (1), (2), and (3) are arranged concentrically (4), and the connecting pipe (7) of the resonator (3) for low frequency range is for medium frequency. The medium-frequency resonator (2) passes through the resonator (2) and its connecting pipe (6) to reach the intake passage (4).
) is connected to the intake passage (
4) has been reached. The connection pipe (5) of the high frequency range resonator (1) is connected to the intake J11J path (4
) is connected to a pipe body (4a) such as a cool air duct.
本実施例によると、中周波成用レゾネータ（２）を適当
な手段を用いて高周波域用レゾネータ（１）に、低周波
域用レゾネータ（３）を適当な手段を用いて中周波成用
レゾネータ（２）に夫々固定すると、これらの接続パイ
プ（６） （７）を前記管体（４ａ）に接続する必要が
無く、構造を簡車にできるという長所がある。According to this embodiment, the medium frequency resonator (2) is converted into a high frequency resonator (1) using appropriate means, and the low frequency resonator (3) is converted into a medium frequency resonator (3) using appropriate means. (2), there is no need to connect these connecting pipes (6) and (7) to the pipe body (4a), and there is an advantage that the structure can be made simple.
第３ム１に示す実施例、は高周波域用レゾネータ（１）
と低周波域用レゾネータ（３）の２種類の容量の異なる
レゾネータを吸気通路に接続している。The embodiment shown in the third section 1 is a resonator for high frequency range (1)
Two types of resonators with different capacities, a resonator for low frequency range (3) and a resonator for low frequency range (3), are connected to the intake passage.
本実施例では、高周波域用レゾネータ（１）と前記管体
（４ａ）とを合成樹脂を素材として一体成形して、構造
の簡単化を図っている。又低周波域用レゾネータ（３）
をシール材を兼ねるグロメット（８）を用いて高周波域
用レゾネータ（１）に固定している。In this embodiment, the high frequency range resonator (1) and the pipe body (4a) are integrally molded from synthetic resin to simplify the structure. Also, resonator for low frequency range (3)
is fixed to the high frequency range resonator (1) using a grommet (8) which also serves as a sealing material.
第４図に示す実施例は高・中・低周波域用レゾネータ（
１） （２） （３１の夫々の接続パイプ（５） （６
） （７）を相互に独立した位置に形成し、前記管体（
４ａ）に接続している。この実施例では、各接続パイプ
（５）（６） （７）を前記管体（４ａ）に固定しなけ
ればならないが、各レゾネータ（１） （２） （３）
及びその接続パイプ（５）（６） （７）が独立に形成
されているので、気密性を維持する点で有利である。The embodiment shown in Fig. 4 is a resonator for high, medium, and low frequency ranges (
1) (2) (31 respective connection pipes (5) (6
) (7) are formed at mutually independent positions, and the tube body (
4a). In this embodiment, each connecting pipe (5) (6) (7) must be fixed to the tube body (4a), while each resonator (1) (2) (3)
and the connecting pipes (5), (6), and (7) are formed independently, which is advantageous in maintaining airtightness.
本発明は上記実施例に示す外、種々の態様に構成するこ
とができる。例えば４ｇｉ類以上の容量の異なるレゾネ
ータ（１）（２） −−一を吸気通路（４）に直交する
方向に重ねた状態で配置し、且つこれらのレゾネータ（
１）（２） −−一が吸気通路（４）に近いものから遠
くのものに至るに従って、順次容量及び接続パイプ（５
１（６１−−一の長さが増大すると共に接続パイプ（５
）（６） −−一の断面積が減少するように形成した（
１・Ｙ成としてもよい。又例えば第２図又は第４図に示
す実施例における３種類のレゾネータ（１） （２１（
３）を合成樹脂を素材として一体形成してもよい。The present invention can be configured in various ways other than those shown in the above embodiments. For example, resonators (1) and (2) with different capacities of 4 GI or more are arranged in a stacked state in a direction perpendicular to the intake passage (4), and these resonators (
1) (2) ---The capacity and connection pipe (5) are sequentially determined from those closest to the intake passage (4) to those farther away
1 (61--1 length increases and the connecting pipe (5
) (6) -- formed so that the cross-sectional area of one decreases (
It may be 1/Y configuration. For example, three types of resonators (1) (21(
3) may be integrally formed using synthetic resin as a material.
本発明は上記措成を有するので、次のような効果を奏す
ることができる。Since the present invention has the above-mentioned features, the following effects can be achieved.
■ 複数のレゾネータを吸気通路に直交する方向に重ね
た状態で配置し、且つ第２図乃至第４図に示す如くこれ
らレゾネータをその周囲にデッドスペースがほとんど生
じないように配置できるので、エンジンルーム内の空１
１ＪＪ ノ有効利用を図ることができる。又装置全体を
コンパクトにまとめることができる。■ Multiple resonators can be placed one on top of the other in a direction perpendicular to the intake passage, and these resonators can be placed so that there is almost no dead space around them, as shown in Figures 2 to 4, so the engine room can be inner sky 1
1JJ can be used effectively. Furthermore, the entire device can be made compact.
■ 各レゾネータの容量、接続パイプの断面積及び接続
パイプの長さが騒音低減効果を十分に発揮できるように
形成されているので、装置全体としての吸気騒音成域効
果も闇れている。(2) Since the capacity of each resonator, the cross-sectional area of the connecting pipe, and the length of the connecting pipe are configured to sufficiently exhibit the noise reduction effect, the intake noise zoning effect of the entire device is also obscured.
第１図は実開昭５８−３５６６６号公報に掲載される先
行技術を改善した例を示す概略図、第２図乃至第４図は
夫々本発明の種々の実施例を示す概略図である。
（ＩＯ２）（３１−−−レゾネータ （４） −−一吸
気通路 （５）（６）（７） −−一接続パイブ代理人
弁理土石原 勝FIG. 1 is a schematic diagram showing an improved example of the prior art disclosed in Japanese Utility Model Application Publication No. 58-35666, and FIGS. 2 to 4 are schematic diagrams showing various embodiments of the present invention. (IO2) (31---Resonator (4) --One intake passage (5)(6)(7) --One connection pipe Attorney Masaru Tsuchishihara
Claims (1)
ゾネータを接続したエンジンの吸気騒音低減装置におい
て、前記複数のレゾネータを吸気通路に直交する方向に
重ねた状態で配置１′且つこれらのレゾネータが、吸気
通路に近いものから遠くのものに至るに従って、順次容
置及び接続のパイプの長さが増大すると共に接続パイプ
の断面積が減少するように形成されたことを特徴とする
エンジンの吸気騒音低減装置。(1) Engine intake passage) ζIn an engine intake noise reduction device in which a plurality of resonators of different capacities are connected, the plurality of resonators are arranged in a state in which they are stacked in a direction perpendicular to the intake passage, and these resonators are Intake noise of an engine characterized in that the length of the housing and connection pipes increases and the cross-sectional area of the connection pipes decreases from the closest to the intake passage to the one farthest from the intake passage. Reduction device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13808283A JPS6030463A (en) | 1983-07-27 | 1983-07-27 | Engine suction noise reducing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13808283A JPS6030463A (en) | 1983-07-27 | 1983-07-27 | Engine suction noise reducing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6030463A true JPS6030463A (en) | 1985-02-16 |
Family
ID=15213533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13808283A Pending JPS6030463A (en) | 1983-07-27 | 1983-07-27 | Engine suction noise reducing system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6030463A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4965179A (en) * | 1985-04-19 | 1990-10-23 | Fuji Photo Film Co., Ltd. | Silver halide color photographic material |
| FR2816991A1 (en) * | 2000-11-23 | 2002-05-24 | Westaflex Automobile | Silencer esp for fitting between engine turbine and heat exchanger has two cylindrical chambers separated by partition |
| EP1785602A1 (en) * | 2005-11-10 | 2007-05-16 | J. Eberspächer GmbH & Co. KG | Silencer |
| EP1795733A1 (en) | 2005-12-12 | 2007-06-13 | Trelleborg Fluid & Acoustic Solutions (TFAS) | Device for reducing the noise of an air circulation circuit, in particular for an internal combustion engine |
| US7506722B2 (en) * | 2004-01-27 | 2009-03-24 | Emler Don R | Vehicle exhaust systems |
| DE102009047809A1 (en) * | 2009-09-30 | 2011-03-31 | Audi Ag | Air inlet line for internal-combustion engine of motor vehicle, has hollow-resonators comprising resonance chambers that communicate with interior of line, where one of resonators intersperses resonance chamber of other hollow-resonator |
| EP2386734A3 (en) * | 2010-05-11 | 2015-04-29 | Eberspächer Exhaust Technology GmbH & Co. KG | Exhaust system and support structure therefore |
| US20150247507A1 (en) * | 2014-02-28 | 2015-09-03 | Regal Beloit America, Inc. | Acoustic Shunt and Method of Attenuating Noise Generated in a Heater Venting System |
| WO2015132205A1 (en) * | 2014-03-07 | 2015-09-11 | Tenneco Gmbh | Exhaust gas muffler |
| US20190234390A1 (en) * | 2018-01-31 | 2019-08-01 | Trane International Inc. | Pressure Pulsation Traps |
| JP2021139295A (en) * | 2020-03-02 | 2021-09-16 | フタバ産業株式会社 | Muffler |
-
1983
- 1983-07-27 JP JP13808283A patent/JPS6030463A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4965179A (en) * | 1985-04-19 | 1990-10-23 | Fuji Photo Film Co., Ltd. | Silver halide color photographic material |
| FR2816991A1 (en) * | 2000-11-23 | 2002-05-24 | Westaflex Automobile | Silencer esp for fitting between engine turbine and heat exchanger has two cylindrical chambers separated by partition |
| EP1209348A1 (en) * | 2000-11-23 | 2002-05-29 | Westaflex-Automobile S.A. | Silencing device, particularly for turbocharged engine |
| US7506722B2 (en) * | 2004-01-27 | 2009-03-24 | Emler Don R | Vehicle exhaust systems |
| DE102005054002B4 (en) | 2005-11-10 | 2021-08-12 | Purem GmbH | silencer |
| EP1785602A1 (en) * | 2005-11-10 | 2007-05-16 | J. Eberspächer GmbH & Co. KG | Silencer |
| EP1795733A1 (en) | 2005-12-12 | 2007-06-13 | Trelleborg Fluid & Acoustic Solutions (TFAS) | Device for reducing the noise of an air circulation circuit, in particular for an internal combustion engine |
| FR2894644A1 (en) * | 2005-12-12 | 2007-06-15 | Trelleborg Fluid & Acoustic Solutions Tfas | DEVICE FOR ATTENUATING THE NOISE OF AN AIR CIRCUIT CIRCUIT, IN PARTICULAR FOR AN INTERNAL COMBUSTION ENGINE |
| DE102009047809A1 (en) * | 2009-09-30 | 2011-03-31 | Audi Ag | Air inlet line for internal-combustion engine of motor vehicle, has hollow-resonators comprising resonance chambers that communicate with interior of line, where one of resonators intersperses resonance chamber of other hollow-resonator |
| EP2386734A3 (en) * | 2010-05-11 | 2015-04-29 | Eberspächer Exhaust Technology GmbH & Co. KG | Exhaust system and support structure therefore |
| US20150247507A1 (en) * | 2014-02-28 | 2015-09-03 | Regal Beloit America, Inc. | Acoustic Shunt and Method of Attenuating Noise Generated in a Heater Venting System |
| WO2015132205A1 (en) * | 2014-03-07 | 2015-09-11 | Tenneco Gmbh | Exhaust gas muffler |
| CN106164435A (en) * | 2014-03-07 | 2016-11-23 | 天纳克有限责任公司 | Muffler |
| US9938870B2 (en) | 2014-03-07 | 2018-04-10 | Tenneco Gmbh | Exhaust gas muffler |
| US20190234390A1 (en) * | 2018-01-31 | 2019-08-01 | Trane International Inc. | Pressure Pulsation Traps |
| US11073145B2 (en) * | 2018-01-31 | 2021-07-27 | Trane International Inc. | Pressure pulsation traps |
| JP2021139295A (en) * | 2020-03-02 | 2021-09-16 | フタバ産業株式会社 | Muffler |
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