JPH0332168U - - Google Patents
Info
- Publication number
- JPH0332168U JPH0332168U JP9249489U JP9249489U JPH0332168U JP H0332168 U JPH0332168 U JP H0332168U JP 9249489 U JP9249489 U JP 9249489U JP 9249489 U JP9249489 U JP 9249489U JP H0332168 U JPH0332168 U JP H0332168U
- Authority
- JP
- Japan
- Prior art keywords
- air cleaner
- small hole
- internal combustion
- suction duct
- opens
- 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
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 230000003584 silencer Effects 0.000 description 2
- 230000030279 gene silencing Effects 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Description
第１図はこの考案の吸気消音装置を備えたエア
クリーナの概略断面図。第２図は第１図の開閉弁
付近の拡大図。第３図は第２図の−線に沿う
断面図。第４図はこの考案の消音装置のエンジン
回転数に対する騒音レベルの値を従来との比較で
示すグラフ。第５図はエンジンルームへのこの考
案の吸気消音装置を備えたエアクリーナの設置状
態を示す斜視図。
１０…エアクリーナ、１２…本体、１４…吸込
みダクト、１６…フイルタエレメント、２０…吸
気管、２６…小孔、２８…開閉弁、３０…カバー
、３４…オリフイス、３６…吸気通路。
FIG. 1 is a schematic cross-sectional view of an air cleaner equipped with the intake silencer of this invention. FIG. 2 is an enlarged view of the vicinity of the on-off valve in FIG. 1. FIG. 3 is a sectional view taken along the - line in FIG. 2. FIG. 4 is a graph showing the value of the noise level with respect to the engine rotation speed of the silencing device of this invention in comparison with the conventional one. FIG. 5 is a perspective view showing how the air cleaner equipped with the intake silencer of this invention is installed in the engine room. DESCRIPTION OF SYMBOLS 10...Air cleaner, 12...Main body, 14...Suction duct, 16...Filter element, 20...Intake pipe, 26...Small hole, 28...Opening/closing valve, 30...Cover, 34...Orifice, 36...Intake passage.
Claims (1)
室が接続される吸込みダクトを有した内燃機関用
エアクリーナにおいて、吸込みダクトの側面に、
除去するべき振動数の気柱振動の腹の位置に小孔
を形成し、該小孔に常態では閉鎖するがダクト内
圧が所定圧力値以上のとき開放する開閉弁を設け
たことを特徴とする内燃機関用エアクリーナ。 In an air cleaner for an internal combustion engine having a suction duct whose upstream end opens to the atmosphere and whose downstream end is connected to an expansion chamber, on the side of the suction duct,
A small hole is formed at the antinode of the air column vibration of the frequency to be removed, and the small hole is provided with an on-off valve that is normally closed but opens when the internal pressure of the duct exceeds a predetermined pressure value. Air cleaner for internal combustion engines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9249489U JPH0332168U (en) | 1989-08-08 | 1989-08-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9249489U JPH0332168U (en) | 1989-08-08 | 1989-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0332168U true JPH0332168U (en) | 1991-03-28 |
Family
ID=31641917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9249489U Pending JPH0332168U (en) | 1989-08-08 | 1989-08-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0332168U (en) |
-
1989
- 1989-08-08 JP JP9249489U patent/JPH0332168U/ja active Pending
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