JP4279536B2 - Noise transmission device - Google Patents

Noise transmission device Download PDF

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Publication number
JP4279536B2
JP4279536B2 JP2002311740A JP2002311740A JP4279536B2 JP 4279536 B2 JP4279536 B2 JP 4279536B2 JP 2002311740 A JP2002311740 A JP 2002311740A JP 2002311740 A JP2002311740 A JP 2002311740A JP 4279536 B2 JP4279536 B2 JP 4279536B2
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JP
Japan
Prior art keywords
valve member
housing
transmission device
chamber
seal
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.)
Expired - Lifetime
Application number
JP2002311740A
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Japanese (ja)
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JP2003262166A (en
Inventor
アレックス マティアス
マオラー ハーマン
フォーゲル エドガー
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mann and Hummel GmbH
Original Assignee
Filterwerk Mann and Hummel GmbH
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Publication of JP2003262166A publication Critical patent/JP2003262166A/en
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/22—Methods or devices for transmitting, conducting or directing sound for conducting sound through hollow pipes, e.g. speaking tubes

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Supercharger (AREA)
  • Vibration Prevention Devices (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Sealing Devices (AREA)
  • General Details Of Gearings (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Arrangement Of Transmissions (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、請求項１に記載の特徴を持つ騒音伝達装置に関する。
【０００２】
【従来の技術】
DE１００４２０１２に自動車における騒音形成装置が開示されている。該装置は、少なくとも１個の振動可能な膜部材によって少なくとも２つの部屋に分割されるた中空体を有している。１つの部屋は自動車に搭載された内燃機関のガスを導く部分に接続され、他の部屋は自動車の内部あるいは自動車を囲む部屋音響的に接続されている。種々の開口部や膜部材の直径の大きさによって適切な騒音の形成がなされる。しかしながら、その構造は製作技術的には贅沢でありコスト高となる。
【０００３】
また、DE１０００２９８４A1には音響アブソーバと吸音方法が開示されている。この技術によると音響レベルの低減を達成することができるが、このシステムでは設定された音響の伝達は不可能である。
【０００４】
【発明が解決しようとする課題】
本発明の目的は、自動車における騒音伝達に用いられる、低コストで製作可能で種々の目的に簡単に適用可能な音響伝達システムを提供することを基本とする。
この課題は請求項１に記載の特徴によって解決される。
【０００５】
【課題を解決するための手段】
本発明の基本的利点は、閉じたハウジング内に隔壁が設けられ、該ハウジングは一方において内燃機関の吸気管に接続され、他方において自動車の内部室に接続されることにある。前記隔壁は強固ではなく、仕切りは弁部材によってなされる。該弁部材は、ハウジング内の空気圧を調整するものではなく、単に音波を伝達するものである。前記弁部材は、吸気による空気振動を最適に、即ち副次的あるいは付加的な雑音をなくして伝えるように配設される。そして、フィルタのようにある特定の騒音スペクトルを確実に弱める働きをする。
【０００６】
本発明の好ましい実施形体では、前記ハウジングと吸気管との接続は内燃機関のターボ過給機と吸気弁、あるいは内燃機関の圧縮機と吸気弁との間の領域で行なわれる。前述したように、前記弁部材は隔壁とは気密になるように取付けられる。適切なシール部材により該弁部材は十分な気密を保ちながら自由に運動できるように取付けられる。
【０００７】
もう１つの方法として、前記弁部材は該弁部材を囲むハウジングと小間隙を保つように取付けるが、該隙間は吸気による好ましくない影響を避けるような隙間に設定される。場合によっては両部屋の空気が行き来しないように膜部材を弁部材に追加配設する。
【０００８】
他の実施例では、前記弁部材は前記隔壁に軸を介して一定の小さな角度範囲だけ決まった回転中心の回りに回転できるように取付けられる。
【０００９】
本発明の特に簡単な構造の実施例では、ハウジングは上、下のハウジングからなり、これら上下のハウジングは互いに連結され、上下ハウジングの間には弁部材が取付けられ、該弁部材の周囲はシール部材で囲まれる。該シール部材は両ハウジングの内壁に対して緊張する。この構造は製作技術的に容易に実現できる。
【００１０】
上記の構造では、弁部材を囲繞するシール部材と、該弁部材は向かい合わせて設けられた少なくとも２つのシール突起部とを有し、該シール突起部は前記隔壁の溝に嵌入されて気密作用を行う。
【００１１】
上記およびその他の本発明の好ましい特徴が、請求項、または明細書及び図面から案出され、個々の特徴がそれ自身あるいは多くは本発明の実施形態を組合せた形態でおよび他の分野で実現される有利かつそれ自身保護され得る実施形態を示すことができ、それらに対して茲に保護を要請するものである。
【００１２】
【発明の実施の形態】
図１は吸気管１０の、例えばターボ過給機と内燃機関の吸気弁の中間に配設された騒音伝達システムを示す。前記吸気管１０にはハウジング１１が取付けられている。該ハウジングは隔壁１２を有し、該隔壁は２分されていて弁部材１３を保持している。該弁部材１３は前記分割切り通し部１４に、例えば１個或は複数のシール部材１５を介して、あるいは弁部材に設けられた軸部１６を介して気密に取付けられる。弁部材１３の周囲とハウジング１１間には、弁部材の右側室の圧力が吸気圧力と均衡するように、小さな隙間１７ができるようにしてある。隔壁１２の下側の部屋１８には出口１９が設けられている。該出口は、例えば自動車の内部室をエンジンルームから隔てる自動車の横壁側へ管路を介して通じるかあるいは間接的に内部室に通じる。前記弁部材１３は下側の部屋１８においても隔壁１１との間に隙間１７’を有し、これにより該弁部材は回転中心Pの回りに小さな角度、例えば１０°揺れることができる。吸気管１０内における吸気の振動は可動に設けられた弁部材１３により下側の部屋１８に伝えられ、さらに出口１９より導出される。
【００１３】
図２は図１におけるA~A断面であり、弁部材１３の平面図を示す。該弁部材は、例えば組立て噴入鋳造方法によって製作され、前記ハウジング１１に組み込むことができる。
【００１４】
図３は下側ハウジング２０と上側ハウジング２１を有する騒音伝達システムを示す。両ハウジングは締付け部材２２、例えばねじによって互いに結合される。勿論、両ハウジングを互いに溶接あるいは接着することも可能である。下側ハウジング２０には入口２３が設けられ、該入口は図示しない内燃機関の吸気管に接続される。上側ハウジングには出口２４が設けられ、該出口は自動車の内部室に接続される。両ハウジングは騒音入力室２５ａ，２５ｂを有し、また両ハウジングは騒音出力室２６ａ，２６ｂを有している。これらの室は弁部材２７によって仕切られる。該弁部材の周囲には上下両ハウジングの結合部でシールするように周囲を取り巻くシール部材２８が取付けられている。そして、前記弁部材は、中央部のシール突起部２９を介してハウジングに取り付けられているので、振動を伝えることができる。
【００１５】
図４は弁部材２７の斜視図で１部切断してある。該弁部材はその増設部分（前記シール部材２８が設けられる領域に、例えば該増設部分がエラストマー（伸縮性合成樹脂）材で噴入鋳造される際に弁部材２７に結合されるための穴３０を有する。シール突起部２９は、図３に認められるように、弁部材に上側と共に下側にも設けられていて、夫々両ハウジングの隔壁に設けられた溝３１、３２に嵌入される。
【００１６】
図５は図４の弁部材を両ハウジング隔壁の溝に取付ける取付け部を示す断面図である。該シール突起部２９は、上下両ハウジングの溝３１及び３２内に挿入される。該シール突起部は、前述したように、噴入鋳造の際に弁部材２７に結合され、該弁部材の両面側に夫々肉ぬすみ部３３、３４を有する。該肉ぬすみ部は、弁部材が特定の振動数の振動を確実に伝達するように形成されている。該肉ぬすみ部の厚さは、例えば２ｍｍから３ｍｍである。市販のエラストマーを用いて、弁部材を両ハウジングの間に、一方においてはある程度頑丈に支持し、他方においては最適の音響伝達を達成できるようにフレキシブルに支持することができる。
【００１７】
【図面の簡単な説明】
【図１】 騒音伝達システムの断面図である。
【図２】 図１におけるA-A断面図であり、弁部材の平面図を示す。
【図３】 ２分割ハウジングの場合の騒音伝達システムの断面図である。
【図４】 図３の２分割ハウジングに取付ける弁部材の斜視図である。
【図５】 図４の弁部材を隔壁の溝に取り付けるための取付け部を示す断面図である。
【符号の説明】
１０ 吸気管
１１ ハウジング
１２ 隔壁
１３ 弁部材
１４ 分割切り通し部
１５ シール部材
２１ ハウジング
２７ 弁部材
２８ シール部材
２９ シール突起部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a noise transmission device having the characteristics described in claim 1.
[0002]
[Prior art]
DE 10042012 discloses a noise shaping device for automobiles. The device has a hollow body that is divided into at least two chambers by at least one oscillatable membrane member. One room is connected to a part for guiding gas of an internal combustion engine mounted on the automobile, and the other room is acoustically connected to the interior of the automobile or the room surrounding the automobile. Appropriate noise is formed depending on the diameters of various openings and membrane members. However, the structure is luxurious in terms of manufacturing technology and is expensive.
[0003]
DE10002984A1 discloses an acoustic absorber and a sound absorption method. Although this technique can achieve a reduction in sound level, this system does not allow transmission of the set sound.
[0004]
[Problems to be solved by the invention]
An object of the present invention is based on providing an acoustic transmission system that is used for noise transmission in an automobile and can be manufactured at low cost and can be easily applied to various purposes.
This problem is solved by the features of claim 1.
[0005]
[Means for Solving the Problems]
The basic advantage of the present invention is that a partition is provided in a closed housing, which is connected on the one hand to the intake pipe of the internal combustion engine and on the other hand to the interior chamber of the motor vehicle. The partition is not strong and the partition is made by a valve member. The valve member does not adjust the air pressure in the housing, but merely transmits sound waves. The valve member is arranged to transmit air vibrations due to intake air optimally, that is, without any secondary or additional noise. And it works to surely weaken a specific noise spectrum like a filter.
[0006]
In a preferred embodiment of the present invention, the connection between the housing and the intake pipe is made in a region between the turbocharger and the intake valve of the internal combustion engine or between the compressor and the intake valve of the internal combustion engine. As described above, the valve member is attached so as to be airtight with the partition wall. With a suitable sealing member, the valve member is mounted so that it can move freely while maintaining sufficient airtightness.
[0007]
As another method, the valve member is attached so as to maintain a small gap with the housing surrounding the valve member, and the gap is set so as to avoid an unfavorable influence due to intake air. In some cases, a membrane member is additionally provided on the valve member so that air in both rooms does not come and go.
[0008]
In another embodiment, the valve member is attached to the partition wall via a shaft so that the valve member can rotate around a predetermined rotation center by a certain small angle range.
[0009]
In a particularly simple structural embodiment of the present invention, the housing comprises an upper and lower housing, the upper and lower housings are connected to each other, a valve member is mounted between the upper and lower housings, and the periphery of the valve member is sealed. Surrounded by members . The seal member is tensioned against the inner walls of both housings. This structure can be easily realized in terms of manufacturing technology.
[0010]
In the above structure, a seal member surrounding the valve member, the valve member has at least two sealing projections provided oppositely, the seal protrusions are fitted into the grooves of the partition wall airtight action I do.
[0011]
These and other preferred features of the invention can be devised from the claims or from the description and drawings, and individual features can be realized in themselves or in many other combinations with embodiments of the invention. It is possible to show an embodiment that can be protected in an advantageous and self-protecting manner, and demands protection from them.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a noise transmission system disposed in an intake pipe 10, for example, between a turbocharger and an intake valve of an internal combustion engine. A housing 11 is attached to the intake pipe 10. The housing has a partition wall 12 which is divided into two to hold the valve member 13. The valve member 13 is airtightly attached to the divided cut-out portion 14 via, for example, one or a plurality of seal members 15 or a shaft portion 16 provided on the valve member. A small gap 17 is formed between the periphery of the valve member 13 and the housing 11 so that the pressure in the right chamber of the valve member is balanced with the intake pressure. An outlet 19 is provided in the room 18 below the partition wall 12. The outlet communicates, for example, via a pipe line to the side wall of the automobile separating the interior room of the automobile from the engine room or indirectly to the interior room. The valve member 13 also has a gap 17 ′ between the lower chamber 18 and the partition wall 11, so that the valve member can swing around the rotation center P by a small angle, for example, 10 °. The vibration of the intake air in the intake pipe 10 is transmitted to the lower chamber 18 by the valve member 13 that is movably provided, and further led out from the outlet 19.
[0013]
FIG. 2 is a cross-sectional view taken along line AA in FIG. 1 and shows a plan view of the valve member 13. The valve member can be manufactured by, for example, an assembly injection casting method and incorporated into the housing 11.
[0014]
FIG. 3 shows a noise transmission system having a lower housing 20 and an upper housing 21. Both housings are connected to each other by a fastening member 22, for example a screw. Of course, both housings can be welded or bonded together. The lower housing 20 is provided with an inlet 23, which is connected to an intake pipe of an internal combustion engine (not shown). The upper housing is provided with an outlet 24, which is connected to the interior chamber of the automobile. Both housings have noise input chambers 25a and 25b, and both housings have noise output chambers 26a and 26b. These chambers are partitioned by a valve member 27. A seal member 28 is attached around the valve member so as to seal at the joint between the upper and lower housings. And since the said valve member is attached to the housing via the seal projection part 29 of the center part, it can transmit a vibration.
[0015]
FIG. 4 is a perspective view of the valve member 27, partly cut away. The valve member has an additional portion (a hole 30 to be joined to the valve member 27 when the additional portion is injected and cast with an elastomer (elastic synthetic resin) material in an area where the seal member 28 is provided). 3, the seal projection 29 is provided on the valve member on the lower side as well as on the upper side of the valve member, and is fitted into the grooves 31 and 32 provided on the partition walls of both housings.
[0016]
FIG. 5 is a cross-sectional view showing an attachment portion for attaching the valve member of FIG. 4 to the grooves of both housing partition walls. The seal projection 29 is inserted into the grooves 31 and 32 of the upper and lower housings. As described above, the seal protrusion is coupled to the valve member 27 during injection casting, and has thinned portions 33 and 34 on both sides of the valve member, respectively. The meat thinning portion is formed so that the valve member can reliably transmit vibration at a specific frequency. The thickness of the thin portion is, for example, 2 mm to 3 mm. Commercially available elastomers can be used to support the valve member between both housings, with some robustness on the one hand and on the other hand in order to achieve optimum sound transmission.
[0017]
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a noise transmission system.
FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1 and shows a plan view of the valve member.
FIG. 3 is a cross-sectional view of a noise transmission system in the case of a two-divided housing.
4 is a perspective view of a valve member attached to the two-divided housing of FIG. 3. FIG.
FIG. 5 is a cross-sectional view showing an attachment portion for attaching the valve member of FIG. 4 to a groove of a partition wall.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Intake pipe 11 Housing 12 Partition 13 Valve member 14 Division cut-off part 15 Seal member 21 Housing 27 Valve member 28 Seal member 29 Seal protrusion part

Claims (6)

隔壁によって下側の部屋と上側の部屋に仕切られたハウジングを備え、前記隔壁は分割切り通し部によって２分され、該切り通し部に沿って弁部材の回転中心の軸部が保持され、前記弁部材は前記分割切り通し部を貫通するように設けられて、前記上側の部屋および下側の部屋の内部に突出してそれぞれの部屋を左右に仕切るように配置され、さらに前記弁部材は弁部材を囲むハウジングとの間に小隙間を有するように配置され、前記上側の部屋および下側の部屋の一方の部屋は内燃機関の吸気管に接続され、他方の部屋は内燃機関が搭載された自動車の壁あるいは内部室に接続されたことを特徴とする騒音伝達装置。 A housing that is partitioned into a lower chamber and an upper chamber by a partition wall, the partition wall being divided into two by a divided cut-out portion, and a shaft portion at the center of rotation of the valve member is held along the cut-out portion; Is provided so as to pass through the divided cut-out part, and is arranged so as to protrude into the upper and lower rooms so as to partition each room into left and right sides, and the valve member is a housing surrounding the valve member Between the upper chamber and the lower chamber is connected to an intake pipe of an internal combustion engine, and the other chamber is a wall of an automobile on which the internal combustion engine is mounted or A noise transmission device characterized by being connected to an internal chamber. 前記吸気管との接続は、ターボ過給機と内燃機関の吸気弁の間で行われることを特徴とする請求項１記載の騒音伝達装置。The noise transmission device according to claim 1, wherein the connection to the intake pipe is performed between a turbocharger and an intake valve of an internal combustion engine. 前記弁部材の軸部は、シール部材を介して気密に前記切り通し部（１４）に配置されたことを特徴とする請求項１記載の騒音伝達装置。The noise transmission device according to claim 1 , wherein the shaft portion of the valve member is disposed in the cut-out portion (14) in an airtight manner via a seal member . 前記弁部材は、回転中心の回りに１０°より小さい角度の回転ができることを特徴とする請求項１記載の騒音伝達装置。The noise transmission device according to claim 1 , wherein the valve member is capable of rotating at an angle smaller than 10 ° around a rotation center . 下側ハウジングと上側ハウジングが互いに連結されてハウジングが構成され、前記下側ハウジングおよび上側ハウジングのそれぞれを左右に仕切る隔壁が設けられ、前記下側ハウジングと上側ハウジングの間に上下両ハウジングを仕切るように弁部材が配設され、該弁部材の周囲には上下両ハウジングの結合部でシールするように周囲を取り巻くシール部材が取り付けられ、前記弁部材の中央部には上下両ハウジングの前記隔壁の頂部にそれぞれ取り付けられるシール突起部が設けられ、前記隔壁の左右一方側のハウジングの室は内燃機関の吸気管に接続され、他方側の室は内燃機関が搭載された自動車の壁あるいは内部室に接続されたことを特徴とする騒音伝達装置。 A lower housing and an upper housing are connected to each other to form a housing, and a partition wall is provided to partition the lower housing and the upper housing in the left and right directions, and the upper and lower housings are partitioned between the lower housing and the upper housing. A valve member is disposed around the valve member, and a seal member is attached around the valve member so as to seal at a joint portion between the upper and lower housings. Seal projections attached to the tops are provided, the housing chambers on the left and right sides of the partition wall are connected to the intake pipe of the internal combustion engine, and the other chambers are connected to the wall or internal chamber of the automobile on which the internal combustion engine is mounted. A noise transmission device characterized by being connected . 前記シール突起部は弁部材の上側および下側に設けられて、夫々が上下両ハウジングの隔壁の頂部に設けられた溝に嵌入されて気密作用を行うことを特徴とする請求項５記載の騒音伝達装置。 6. The noise according to claim 5, wherein the seal protrusions are provided on the upper side and the lower side of the valve member, respectively, and are fitted into grooves provided in the tops of the partition walls of the upper and lower housings to perform an airtight action. Transmission device.
JP2002311740A 2001-10-27 2002-10-25 Noise transmission device Expired - Lifetime JP4279536B2 (en)

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DE10153134.6 2001-10-27
DE10153134 2001-10-27

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