JPH0389972U - - Google Patents

Info

Publication number
JPH0389972U
JPH0389972U JP1989150138U JP15013889U JPH0389972U JP H0389972 U JPH0389972 U JP H0389972U JP 1989150138 U JP1989150138 U JP 1989150138U JP 15013889 U JP15013889 U JP 15013889U JP H0389972 U JPH0389972 U JP H0389972U
Authority
JP
Japan
Prior art keywords
neck
communication port
annular passage
shielding wall
rotating cylinder
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.)
Granted
Application number
JP1989150138U
Other languages
Japanese (ja)
Other versions
JPH0755318Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1989150138U priority Critical patent/JPH0755318Y2/en
Publication of JPH0389972U publication Critical patent/JPH0389972U/ja
Application granted granted Critical
Publication of JPH0755318Y2 publication Critical patent/JPH0755318Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Landscapes

  • Exhaust Silencers (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第1図及び第2図は、本考案による可変共鳴型
消音器の実施例を示し、第1図は断面図、第2図
は斜視図である。 11……吸気又は排気のダクト、12……首部
、13……共鳴部、14……箱体、15……環状
通路、16……回転筒、16c……連絡口、16
d……遮蔽壁、17……回転軸、20……駆動部
。
1 and 2 show an embodiment of a variable resonance muffler according to the present invention, with FIG. 1 being a sectional view and FIG. 2 being a perspective view. 11... Intake or exhaust duct, 12... Neck, 13... Resonance part, 14... Box, 15... Annular passage, 16... Rotating cylinder, 16c... Communication port, 16
d... Shielding wall, 17... Rotating shaft, 20... Drive unit.

Claims (1)

【実用新案登録請求の範囲】 内燃機関の吸気又は排気のダクトに筒状の首部
を介して連通させた共鳴部を有し、共鳴部が、首
部に連なつて円形容器状に形成された箱体と、箱
体の内部に同軸上で回転自在に支持されかつ箱体
との間に形成される環状通路を首部に接続させた
円筒形の回転筒と、回転筒を回転駆動させる駆動
部と、を含み 回転筒に周の一部を切欠して連絡口を設け、連
絡口を通して筒内を首部に連通させると共に、連
絡口の口端に環状通路を遮る遮蔽壁を設け、回転
筒の回転で遮蔽壁が移動して首部に通ずる環状通
路の長さを変化させることを特徴とする可変共鳴
型消音器。
[Claims for Utility Model Registration] A box having a resonance part that communicates with an intake or exhaust duct of an internal combustion engine through a cylindrical neck, and where the resonance part is connected to the neck and formed in the shape of a circular container. a cylindrical rotary tube that is coaxially and rotatably supported inside the box body and has a neck connected to an annular passage formed between the body and the box body; and a drive section that rotationally drives the rotary tube. A communication port is provided by cutting out a part of the circumference of the rotating cylinder, and the inside of the cylinder is communicated with the neck through the communication port, and a shielding wall is provided at the mouth end of the communication port to block the annular passage, and the rotation of the rotating cylinder is A variable resonance muffler characterized in that a shielding wall moves to change the length of an annular passage leading to a neck.
JP1989150138U 1989-12-28 1989-12-28 Variable resonance silencer Expired - Lifetime JPH0755318Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989150138U JPH0755318Y2 (en) 1989-12-28 1989-12-28 Variable resonance silencer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989150138U JPH0755318Y2 (en) 1989-12-28 1989-12-28 Variable resonance silencer

Publications (2)

Publication Number Publication Date
JPH0389972U true JPH0389972U (en) 1991-09-12
JPH0755318Y2 JPH0755318Y2 (en) 1995-12-20

Family

ID=31696504

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989150138U Expired - Lifetime JPH0755318Y2 (en) 1989-12-28 1989-12-28 Variable resonance silencer

Country Status (1)

Country Link
JP (1) JPH0755318Y2 (en)

Also Published As

Publication number Publication date
JPH0755318Y2 (en) 1995-12-20

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