JPS60125764A - Resonator for vehicle - Google Patents
Resonator for vehicleInfo
- Publication number
- JPS60125764A JPS60125764A JP23053783A JP23053783A JPS60125764A JP S60125764 A JPS60125764 A JP S60125764A JP 23053783 A JP23053783 A JP 23053783A JP 23053783 A JP23053783 A JP 23053783A JP S60125764 A JPS60125764 A JP S60125764A
- Authority
- JP
- Japan
- Prior art keywords
- resonator
- sound absorbing
- resonance
- sintered material
- absorbing plate
- 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
- 239000000463 material Substances 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 abstract description 13
- 230000002093 peripheral effect Effects 0.000 abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 abstract description 7
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000705082 Sialia Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000003466 welding 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
- F02M35/10—Air intakes; Induction systems
- F02M35/10314—Materials for intake systems
- F02M35/10327—Metals; Alloys
-
- 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
- F02M35/10—Air intakes; Induction systems
- F02M35/10314—Materials for intake systems
- F02M35/10334—Foams; Fabrics; Porous media; Laminates; Ceramics; Coatings
-
- 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
- F02M35/1272—Intake silencers ; Sound modulation, transmission or amplification using absorbing, damping, insulating or reflecting materials, e.g. porous foams, fibres, rubbers, fabrics, coatings or membranes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はエンジンに外気を導入するためのエアダクトに
設けられるレゾネータの改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a resonator provided in an air duct for introducing outside air into an engine.
第１図に示づ−ように、エンジンルーム１内にはエンジ
ン２に外気を導入するためのエアダクト３が配管され、
該エアダクト３の途中に設けられたエアクリーナ４によ
って清浄外気がエンジン２に供給される。また、エアク
リーナ４の後方にはエアダク１〜３にレゾネータ５が設
けられＣおり、該レゾネータ５の共鳴作用によって吸気
系で生ずるｌＡ音の低減を図っている。As shown in FIG. 1, an air duct 3 for introducing outside air into the engine 2 is installed in the engine room 1.
Clean outside air is supplied to the engine 2 by an air cleaner 4 provided in the middle of the air duct 3. Further, a resonator 5 is provided in the air ducts 1 to 3 behind the air cleaner 4, and the resonance effect of the resonator 5 is used to reduce the 1A sound generated in the intake system.
従来、この種のレゾネータ５ａは、第２図に示すように
上面に吸込ロアを有するボックス状の樹脂製共鳴箱６と
、この共鳴箱６をエアダクト３に設けた開口８に接続す
る筒状の町撓竹連結部材９とで構成され、この連結部材
７を上記吸込ロアの周縁フランジ１０と開口８の周縁フ
ランジ１１とに嵌合固定することによりエアダク１〜３
の所定部位に取付保持されていた（例えば、昭和５８年
１０月日産自動車発行、ザービス周報第４９１号Ｎ’１
ＳＳＡＮブルーバードｔＪ１１系車の紹介）。Conventionally, this type of resonator 5a has a box-shaped resin resonance box 6 having a suction lower on the upper surface, and a cylindrical resonance box 6 that connects the resonance box 6 to an opening 8 provided in the air duct 3, as shown in FIG. By fitting and fixing this connecting member 7 to the peripheral flange 10 of the suction lower and the peripheral flange 11 of the opening 8, the air ducts 1 to 3 are connected.
(for example, Service Bulletin No. 491 N'1, published by Nissan Motor Co., Ltd., October 1982).
Introduction of SSAN Bluebird tJ11 series cars).
上記レゾネータ５ａは、共鳴箱６の大きさ及び連結部材
９の直径や長さ等によって固有振動数が決まっており、
該固有振動数イ」近の周波数帯の騒音を共鳴作用により
低減させるものである。The resonator 5a has a natural frequency determined by the size of the resonance box 6, the diameter and length of the connecting member 9, etc.
Noise in a frequency band near the natural frequency A is reduced by resonance.
従って、エアダクト３を通じて発生ずる吸気系の騒音、
例えば外気導入時にエアダクト３内への吸込によって生
ずる吸気騒音、■アクリ−す４内でのニレメン１−（図
示せず）の通気抵抗によって生ずるこもり音及びエンジ
ン２から生ずるエンジン騒音等のうちレゾネータ５ａの
固有振動数イ」近の周波数帯のＵ音がレゾネータ５ａの
共鳴作用によって低減されることとなる。Therefore, the noise of the intake system generated through the air duct 3,
For example, among the intake noise caused by suction into the air duct 3 when outside air is introduced, muffled noise caused by ventilation resistance of the elmmen 1 (not shown) in the clearing 4, engine noise generated from the engine 2, etc., the resonator 5a The U-sound in the frequency band near the natural frequency A' is reduced by the resonance effect of the resonator 5a.
しかしながら、このような従来の車両用レゾネータにあ
つ−Ｃは、レゾネータ５ａの共鳴周波数帯ｆ−１近の騒
音しか低減できない他、騒音低減量はレゾネータ５ａの
容積に比例するため、レゾネータ５ａの容積を増やして
共鳴効果を大きくしようとすると、その分エンジンルー
ム１内が狭くなりエンジンマウント等部品のレイアラ１
−十Ｃ制限を受（プてしまうといった問題があつｌこ
。However, such a conventional vehicle resonator Atsu-C can only reduce noise near the resonant frequency band f-1 of the resonator 5a, and since the amount of noise reduction is proportional to the volume of the resonator 5a, the volume of the resonator 5a If you try to increase the resonance effect by increasing the resonance effect, the inside of the engine room 1 will become narrower and the rear 1 of parts such as the engine mount will become smaller.
- There may be problems such as being subject to the 10C limit.
.
本発明は一１二記従来の問題点に着目して成されたしの
でありその目的とするところは、広域周波数に及ぶ吸気
系騒音を効果的に低減すると共に、エンジンルーム内部
品のレイアウト上での制限を緩和できるようにしたレゾ
ネータを提供することにある。そして本発明の要旨とす
るところは、エアダクトにｙ （ｔられたレゾネータの
少なくとも一部を多孔質焼結材で構成したことである。The present invention has been made by focusing on the problems of the prior art as described in No. 112, and its purpose is to effectively reduce intake system noise over a wide range of frequencies, and to improve the layout of parts in the engine room. The object of the present invention is to provide a resonator that can alleviate the restrictions imposed on the user. The gist of the present invention is that at least a portion of the resonator attached to the air duct is made of a porous sintered material.
以下添付図面に示づ一実施例に基づぎ本発明の詳細な説
明する。The present invention will be described in detail below based on an embodiment shown in the accompanying drawings.
第３図及び第４図は本発明の第１実施例を示したもので
あり、レゾネータ５ｂの共鳴箱１３をアッパ部材１４と
ロア部材１５とに２分割形成し、両者の間に多孔質アル
ミニウム板で形成される四角形平板状の吸音板１６を挟
装したものである。3 and 4 show a first embodiment of the present invention, in which the resonance box 13 of the resonator 5b is formed into two parts, an upper member 14 and a lower member 15, and porous aluminum is inserted between them. The sound absorbing plate 16 is sandwiched between rectangular flat sound absorbing plates 16 formed of plates.
アッパ部材１４及びロア部材１５の各接合部に設けられ
る周縁フランジ１７．１８、並びに吸音板１６の四隅に
は同一軸線上にポル１ル挿通孔１９．２０．２１がそれ
ぞれ開設され、アッパ部ｖＪ１４及びロア部材１５の組
付時に上記吸音板１６を挾み込んだ状態でボルト２２、
ナツト２３固定することによって共鳴箱１３が形成され
る。Pole insertion holes 19, 20, and 21 are provided on the same axis in the peripheral flanges 17.18 provided at each joint of the upper member 14 and the lower member 15, and in the four corners of the sound absorbing plate 16, respectively, and the upper part vJ14 And when assembling the lower member 15, the bolt 22 is inserted with the sound absorbing plate 16 inserted,
A resonance box 13 is formed by fixing the nut 23.
上記吸音板１６は、アルミニウム粉又はアルミニウム合
金粉を一定条件下で焼結し各隣接粒子間を結合して一体
化しＩＣものであり、各粒子間に３１体的に連通り全透
過孔を備えた多孔質のアルミニウム板で１１４成される
。そのため、音波が吸音板１６の透過孔を通過する際に
音のエネルギが吸収されて優れた吸音効果を持つことが
できる。The sound absorbing plate 16 is an IC made by sintering aluminum powder or aluminum alloy powder under certain conditions and bonding each adjacent particle to form an integrated structure, and has 31 integrally communicating holes between each particle. It is made of a porous aluminum plate. Therefore, when the sound waves pass through the transmission holes of the sound absorption plate 16, the sound energy is absorbed and an excellent sound absorption effect can be achieved.
尚、上記共鳴箱１３は、従来と同様アッパ部材１４の上
面にエアダク１〜３の開口８に連通ずる吸込口２４を有
しており、その周縁フランジ２５と上記エアダク１−３
の開口周縁フランジ１１には筒状の連結部月９の両端が
固定されている。The resonance box 13 has a suction port 24 on the upper surface of the upper member 14 that communicates with the openings 8 of the air ducts 1 to 3, as in the conventional case, and the peripheral flange 25 of the suction port 24 communicates with the openings 8 of the air ducts 1 to 3.
Both ends of a cylindrical connecting portion 9 are fixed to the opening peripheral flange 11 of the opening.
従って、上記実施例によれば、吸気系において生ずる種
々の騒音がエアダクト３内を通過する際、従来と同様、
レゾネータ５ｂの共鳴作用により共鳴周波数帯付近の騒
音低減を図ることができる他、吸音板１６の吸音作用に
より上記共鳴周波数帯を含む広域周波数の騒音低減をも
図ることができる。その結果、従って吸気系騒音の消音
効率が良好となる仙騒音低減の目標レベルをレゾネータ
５ｂの共鳴作用と吸音板１６の吸音作用との累積効果に
よって達成することができるので、その分レゾネータ５
ｂの小型化を図ることができる。尚、吸音板１６ハアル
ミニウムを主体としているので軽量であり、この取付け
によって車体重量に影響を及ぼずどいったおそれはない
。Therefore, according to the above embodiment, when various noises generated in the intake system pass through the air duct 3, as in the conventional case,
The resonance effect of the resonator 5b can reduce noise near the resonant frequency band, and the sound absorption effect of the sound absorbing plate 16 can also reduce noise in a wide range of frequencies including the resonant frequency band. As a result, the target level of noise reduction, which improves the silencing efficiency of intake system noise, can be achieved by the cumulative effect of the resonance action of the resonator 5b and the sound absorption action of the sound absorption plate 16.
b can be made smaller. Furthermore, since the sound absorbing plates 16 are mainly made of aluminum, they are lightweight, and there is no fear that this attachment will affect the weight of the vehicle.
第５図及び第６図は本発明の第２実施例を示したもので
あり、レゾネータ５Ｃを構成する共鳴箱２６内に上下二
枚の吸音板２７．２８を配設したものである。5 and 6 show a second embodiment of the present invention, in which two upper and lower sound absorbing plates 27 and 28 are disposed within a resonance box 26 constituting a resonator 5C.
この実施例に８３いて、共鳴箱２６は周縁部が階段状に
形成されたアッパ部材２９とロア部材３０とに２分割形
成されており、各部材２９．３０の開口部周縁に沿って
設（プられた周縁フランジ３１．３２を接合し両者をボ
ルト３３、ナツト３４固定づることにより組立てられる
。In this embodiment, the resonance box 26 is divided into two parts: an upper member 29 and a lower member 30, each having a step-shaped peripheral edge. It is assembled by joining the pulled peripheral flanges 31 and 32 and fixing them both with bolts 33 and nuts 34.
また吸音板２７．２８は前記実施例と同様、多孔質アル
ミニウム板によって所定形状に形成されており、共鳴箱
２６組立時に、アッパ部材２９及びロア部材３０にそれ
ぞれ設けられた周縁フランジ３１、３２の上側水平部３
１ａ 、 ３２ａ間に一方が挾持され、また上記周縁フ
ラノン３１．３２の下側水平部３１ｂ 、 ３２ｂ間に
他方が挾持される。Further, the sound absorbing plates 27 and 28 are formed of porous aluminum plates into a predetermined shape as in the previous embodiment, and when the resonance box 26 is assembled, the sound absorbing plates 27 and 28 are attached to the peripheral flanges 31 and 32 provided on the upper member 29 and the lower member 30, respectively. Upper horizontal part 3
One is sandwiched between 1a and 32a, and the other is sandwiched between lower horizontal portions 31b and 32b of the peripheral flanone 31, 32.
従って、この実施例によれば共鳴箱２６内に２枚の吸音
板２７．２８を配設した状態での共鳴周波数帯ｆＮ１近
の騒音低減を図ることができると共に、２枚の吸音板２
７．２８によって吸音効果が増大し全体どして騒音低減
が顕著となる他、レゾネータ！１５１１を更に小型化す
ることが可能となる。Therefore, according to this embodiment, it is possible to reduce the noise near the resonance frequency band fN1 when the two sound absorbing plates 27 and 28 are arranged in the resonance box 26, and the two sound absorbing plates 27 and 28 can be reduced.
7.28 increases the sound absorption effect and the overall noise reduction is noticeable, and the resonator! 1511 can be further downsized.
第７図及び第８図は本発明の第３実施例を示したもので
あり、レゾネータ５ｄ全体を多孔質アルミニウム材で形
成された吸音部材で構成したものであり、吸音効果を更
に向上させることによって騒音低減の効率化とレゾネー
タ５ｄの小型化を図ったものである。尚、上記実施例に
かかるレゾネータ５ｄは、第７図に示すように角形平板
状の底壁部３５、角筒状の側壁部３６、吸込ｌ」３７が
形成された上壁部３８及び円筒状の連結部３９をそれぞ
れ別途成形しておき、これらを溶接又は接着手段等によ
って組（＝Ｉけられる。7 and 8 show a third embodiment of the present invention, in which the entire resonator 5d is constructed of a sound absorbing member made of porous aluminum material, and the sound absorbing effect can be further improved. This is intended to improve the efficiency of noise reduction and downsize the resonator 5d. As shown in FIG. 7, the resonator 5d according to the above embodiment has a bottom wall portion 35 having a rectangular flat plate shape, a side wall portion 36 having a rectangular cylindrical shape, an upper wall portion 38 in which a suction port 37 is formed, and a cylindrical bottom wall portion 35. The connecting portions 39 are separately molded, and these are assembled (=I) by welding or adhesive means.
尚、上記いずれの実施例でもエアクリーナの後方にレゾ
ネータを設けた場合について説明したが、配設箇所はこ
れに限られるしのではなくエアダク［へのいずれの場所
でもよい。また、上記実施例では多孔質焼結材として、
多孔質アルミニウム材を適用した例について説明したが
、これに限定されるものではなく、例えば銅を主体とし
た多孔質焼結材等も適用できることは勿論である。Incidentally, in each of the above embodiments, the case where the resonator is provided behind the air cleaner has been described, but the arrangement location is not limited to this, and may be provided at any location toward the air duct. In addition, in the above examples, as the porous sintered material,
Although an example in which a porous aluminum material is used has been described, the present invention is not limited to this, and it goes without saying that, for example, a porous sintered material mainly made of copper can also be used.
以上説明したように本発明にかかる車両用レゾネータに
よれば、エアダクトに設けられるレゾネータの少なくと
も一部を多孔質焼結材で構成したから、レゾネータ本来
の共鳴効果による騒音低減に加えて多孔質焼結材の吸音
効果によって広域周波数の騒音低減を図ることができ、
エアーダク］へを通じて発生ずる吸気系騒音を効率的に
低減化することができる。As explained above, according to the vehicle resonator according to the present invention, since at least a part of the resonator provided in the air duct is made of porous sintered material, in addition to noise reduction due to the resonance effect inherent to the resonator, the porous sintered material The sound absorption effect of the binder can reduce noise in a wide range of frequencies,
The intake system noise generated through the air duct can be efficiently reduced.
また本発明によれば、１ノゾネータを小型化りることが
できるので、その分エンジンルーム内を広く利用するこ
とができ、エンジンマウント等部品のレイアウトや部品
設計上の自由度が大きくなるといった効果を秦づる。Furthermore, according to the present invention, since the single nosonator can be made smaller, the interior of the engine room can be used more widely, and the degree of freedom in layout and design of parts such as engine mounts is increased. Qinzuru.
第１図はレゾネータの配設箇所を示すエンジンルームの
平面図、第２図は従来の車両用レゾネータを示す第１図
中ＩＩ−ＩＩ線断面図、第３図は本発明にかかる車両用
レゾネータの第１実施例を示づ一分解斜視図、第４図は
その断面図、第５図は本発明にかかる車両用レゾネータ
の第２実施例を示づ一分解斜視図、第６図はその断面図
、第７図は本発明の第３実施例を示す分解斜視図、第８
図はその断面図である。
１・・・土ンジンルーム ２・・・エンジン３・・・エ
アタクト ４・・・エアクリーナ５．５ａ 、５ｂ 、
５ｃ ＋・レゾネータｉｆ’ｉ、 ２７．２８・・・吸
音板（多孔質焼結材）特許出願人 日産自動車株式会社
第３図
第１図
第６図
ス
第７図Fig. 1 is a plan view of the engine room showing the location where the resonator is installed, Fig. 2 is a sectional view taken along the line II-II in Fig. 1 showing a conventional vehicular resonator, and Fig. 3 is a vehicular resonator according to the present invention. FIG. 4 is an exploded perspective view showing a first embodiment of the vehicle resonator, FIG. 4 is a sectional view thereof, FIG. 5 is an exploded perspective view showing a second embodiment of the vehicle resonator according to the present invention, and FIG. A sectional view, FIG. 7 is an exploded perspective view showing a third embodiment of the present invention, and FIG.
The figure is a sectional view thereof. 1... Engine room 2... Engine 3... Air tact 4... Air cleaner 5.5a, 5b,
5c + Resonator if'i, 27.28... Sound absorbing plate (porous sintered material) Patent applicant Nissan Motor Co., Ltd. Figure 3 Figure 1 Figure 6 Figure 7
Claims (1)
ンジンに外気を導入するエアダクトに設Ｃブられるレゾ
ネータにおいて、該レゾネータの少なくとも一部を多孔
質焼結材で構成したことを特徴とりる車両用レゾネータ
。A vehicular resonator installed in an air duct piped in an engine compartment and introducing outside air into the engine through an air cleaner, wherein at least a part of the resonator is made of a porous sintered material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23053783A JPS60125764A (en) | 1983-12-08 | 1983-12-08 | Resonator for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23053783A JPS60125764A (en) | 1983-12-08 | 1983-12-08 | Resonator for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60125764A true JPS60125764A (en) | 1985-07-05 |
Family
ID=16909302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23053783A Pending JPS60125764A (en) | 1983-12-08 | 1983-12-08 | Resonator for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60125764A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006125214A (en) * | 2004-10-26 | 2006-05-18 | Aisin Seiki Co Ltd | Muffling device |
| JP2015151956A (en) * | 2014-02-17 | 2015-08-24 | トヨタ紡織株式会社 | Intake resonator of internal combustion engine |
| JP2015169864A (en) * | 2014-03-10 | 2015-09-28 | 株式会社リコー | Sound absorption device, electronic apparatus, and image forming apparatus |
| WO2015152858A1 (en) * | 2014-03-31 | 2015-10-08 | Faurecia Emissions Control Technologies | Vehicle exhaust system with resistive patch |
| CN105909435A (en) * | 2016-05-20 | 2016-08-31 | 江苏凯联达电子科技有限公司 | Vehicle intake pipe silencer |
| US9970340B2 (en) | 2013-02-12 | 2018-05-15 | Faurecia Emissions Control Technologies, Usa, Llc | Vehicle exhaust system with resonance damping |
-
1983
- 1983-12-08 JP JP23053783A patent/JPS60125764A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006125214A (en) * | 2004-10-26 | 2006-05-18 | Aisin Seiki Co Ltd | Muffling device |
| US9970340B2 (en) | 2013-02-12 | 2018-05-15 | Faurecia Emissions Control Technologies, Usa, Llc | Vehicle exhaust system with resonance damping |
| JP2015151956A (en) * | 2014-02-17 | 2015-08-24 | トヨタ紡織株式会社 | Intake resonator of internal combustion engine |
| JP2015169864A (en) * | 2014-03-10 | 2015-09-28 | 株式会社リコー | Sound absorption device, electronic apparatus, and image forming apparatus |
| WO2015152858A1 (en) * | 2014-03-31 | 2015-10-08 | Faurecia Emissions Control Technologies | Vehicle exhaust system with resistive patch |
| CN106133287A (en) * | 2014-03-31 | 2016-11-16 | 佛吉亚排放控制技术美国有限公司 | There is the vehicle exhaust system of resisting force sheet |
| US10047650B2 (en) | 2014-03-31 | 2018-08-14 | Faurencia Emissions Technologies USA, LLC | Vehicle exhaust system with resistive patch |
| CN105909435A (en) * | 2016-05-20 | 2016-08-31 | 江苏凯联达电子科技有限公司 | Vehicle intake pipe silencer |
| CN105909435B (en) * | 2016-05-20 | 2018-04-03 | 江苏凯联达电子科技有限公司 | A kind of automotive air intake pipe muffler |
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