JPS608143Y2 - Air cleaner intake noise reduction device - Google Patents
Air cleaner intake noise reduction deviceInfo
- Publication number
- JPS608143Y2 JPS608143Y2 JP7812279U JP7812279U JPS608143Y2 JP S608143 Y2 JPS608143 Y2 JP S608143Y2 JP 7812279 U JP7812279 U JP 7812279U JP 7812279 U JP7812279 U JP 7812279U JP S608143 Y2 JPS608143 Y2 JP S608143Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- interference
- intake
- air cleaner
- noise reduction
- 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
Links
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Description
【考案の詳細な説明】
この考案は、内燃機関に用いるエアクリーナの吸気騒音
低減装置に関する。[Detailed Description of the Invention] This invention relates to an intake noise reduction device for an air cleaner used in an internal combustion engine.
内燃機関の吸気は、間歇的に急激に行われる。Intake in an internal combustion engine occurs rapidly intermittently.
従って、吸気の先端に装着するエアクリーナの部分で吸
気騒音が発生する。Therefore, intake noise is generated at the part of the air cleaner that is attached to the tip of the intake air.
エアクリーナは、容積を大きくして膨張室とし、消音を
計っているが、低周波の騒音は除けない。Air cleaners are designed to muffle noise by increasing their volume to form an expansion chamber, but this does not eliminate low-frequency noise.
低周波は、エアクリーナの吸気口を長くして、管内で干
渉させて消すとよいが、オートバイ等では、長い吸気管
は邪魔になって設けることができないので、低周波域の
騒音が発生して不快である。It is best to eliminate low frequencies by making the air cleaner's intake port long and interfering with the inside of the pipe, but on motorcycles, etc., long intake pipes cannot be installed because they get in the way, so noise in the low frequency range is generated. It's unpleasant.
この考案は、かかる点に鑑み改善したもので、以下図面
に示す本考案の実施例について説明する。This invention has been improved in view of these points, and an embodiment of the invention shown in the drawings will be described below.
クリーナボデー１は、−側に短い吸気管２を突設し、他
側に出口３を設け、該出口３は、連結管４でエンジンの
気化器に連結する。The cleaner body 1 has a short intake pipe 2 protrudingly provided on the negative side and an outlet 3 on the other side, and the outlet 3 is connected to the carburetor of the engine through a connecting pipe 4.
クリーナボデー１内には、カップ状の多孔質のクリーナ
エレメント５を、出口３の口元を被うような形状で設け
である。A cup-shaped porous cleaner element 5 is provided in the cleaner body 1 in a shape that covers the mouth of the outlet 3.
吸気管２の外周には渦巻状の干渉管６を配置し、干渉管
６の内端は吸気管２の外周部に連結し横孔７で吸気管２
に連通させる。A spiral interference pipe 6 is arranged on the outer circumference of the intake pipe 2, and the inner end of the interference pipe 6 is connected to the outer circumference of the intake pipe 2, and the horizontal hole 7 connects the intake pipe 2.
communicate with.
又、干渉管６の外端は、クリーナボデー１の一側に連結
しその一側に設けた貫孔８により互いに連通させる。Further, the outer ends of the interference tubes 6 are connected to one side of the cleaner body 1 and communicated with each other through a through hole 8 provided on the one side.
干渉管６の途中には、適宜その管路を短絡する干渉孔９
を設ける。An interference hole 9 is provided in the middle of the interference pipe 6 to short-circuit the pipe as appropriate.
will be established.
吸気は、吸気管２と、干渉管６を通って、クリーナボデ
ー１内に入り、クリーナエレメント５で塵を除かれて清
浄にされ、出口３から連結管４を通ってエンジン側に流
れる。Intake air enters the cleaner body 1 through an intake pipe 2 and an interference pipe 6, is cleaned by removing dust in a cleaner element 5, and flows from an outlet 3 through a connecting pipe 4 to the engine side.
而して、間歇に急激に行われる吸気によって発生する騒
音のうち、高周波成分は、クリーナボデー１の容積によ
る膨張室で消音し、低周波の波長の長い成分は、長い干
渉管６によって減衰させる。Of the noise generated by the intermittent and sudden intake, high frequency components are muffled by the expansion chamber formed by the volume of the cleaner body 1, and low frequency components with long wavelengths are attenuated by the long interference tube 6. .
そして、短い吸気管３と、長い干渉管６を連結すること
によって、二つの音を干渉させて、吸気音の減衰効果を
高める。By connecting the short intake pipe 3 and the long interference pipe 6, the two sounds are made to interfere with each other, thereby increasing the effect of attenuating the intake sound.
又、干渉管６の途中に設ける干渉孔９も、その波長長さ
に合せた音を減衰する。Further, the interference hole 9 provided in the middle of the interference tube 6 also attenuates the sound matched to the wavelength length.
干渉孔９は、発生する騒音の周波に合せて、適宜設ける
。The interference hole 9 is provided as appropriate depending on the frequency of the generated noise.
又、干渉管６の長さや太さも周波数特性に合せて設定す
る。Further, the length and thickness of the interference tube 6 are also set according to the frequency characteristics.
以上説明したように、この考案は、クリーナボデーの一
側に突設した吸気管の外周に渦巻状の干渉管を設けて、
該干渉管の内端を吸気管の外周部に連結し互いに連通さ
せ、干渉管の外端をクリーナボデーに連結連通せしめ、
干渉管の途中に適宜干渉孔を設けたので、吸気騒音のう
ち、高周波成分はクリーナボデーの膨張室で消音し、高
周波成分は干渉管によって減衰させることができ、全域
で、騒音の低減が計れる。As explained above, this invention provides a spiral interference pipe on the outer periphery of the intake pipe protruding from one side of the cleaner body.
The inner end of the interference pipe is connected to the outer circumference of the intake pipe so that they communicate with each other, and the outer end of the interference pipe is connected and communicated with the cleaner body,
Since an appropriate interference hole is provided in the middle of the interference tube, the high frequency component of the intake noise is muffled by the expansion chamber of the cleaner body, and the high frequency component can be attenuated by the interference tube, reducing noise throughout the entire area. .
しかも、干渉管は、渦巻状であるので、コンパクトにで
き、小型エンジンも適用できる。Furthermore, since the interference tube has a spiral shape, it can be made compact and can be applied to small engines.
又、吸気の抵抗も少いので、エンジン出力に与える影響
も少い。In addition, since there is little intake resistance, there is little effect on engine output.
図は本考案の一実施例を示すもので、第１図は縦断面図
、第２図は第１図Ａ−Ａ矢視横断面図である。
１・・・・・・クリーナボデー、２・・・・・・吸気管
、６・・・・・・干渉管、９・・・・・・干渉孔。The drawings show an embodiment of the present invention, in which FIG. 1 is a longitudinal cross-sectional view, and FIG. 2 is a cross-sectional view taken along the line A--A in FIG. 1...Cleaner body, 2...Intake pipe, 6...Interference pipe, 9...Interference hole.
Claims (1)
の干渉管を設け、その干渉管の内端を吸気管の外周部に
連結して互いに連通させ、干渉管の外端をクリーナボデ
ーに連結連通せしめ、干渉管の途中にその管路を短絡す
る干渉孔を設けたことを特徴とする、エアクリーナの吸
気騒音低減装置。A spiral interference pipe is provided on the outer periphery of the intake pipe protruding from one side of the cleaner body, and the inner end of the interference pipe is connected to the outer periphery of the intake pipe to communicate with each other, and the outer end of the interference pipe is connected to the outer periphery of the intake pipe. An intake noise reduction device for an air cleaner, characterized in that an interference hole is provided in the middle of the interference pipe to connect and communicate with the pipe, and to short-circuit the pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7812279U JPS608143Y2 (en) | 1979-06-08 | 1979-06-08 | Air cleaner intake noise reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7812279U JPS608143Y2 (en) | 1979-06-08 | 1979-06-08 | Air cleaner intake noise reduction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55180062U JPS55180062U (en) | 1980-12-24 |
| JPS608143Y2 true JPS608143Y2 (en) | 1985-03-20 |
Family
ID=29311578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7812279U Expired JPS608143Y2 (en) | 1979-06-08 | 1979-06-08 | Air cleaner intake noise reduction device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS608143Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015017549A (en) * | 2013-07-11 | 2015-01-29 | タイガースポリマー株式会社 | Intake system for internal combustion engine of automobile |
-
1979
- 1979-06-08 JP JP7812279U patent/JPS608143Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55180062U (en) | 1980-12-24 |
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