JPH0452922U

JPH0452922U -

Info

Publication number: JPH0452922U
Application number: JP9619790U
Authority: JP
Priority date: 1990-09-13
Filing date: 1990-09-13
Publication date: 1992-05-06

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の要部を示す部分断
面平面図、第２図は本考案に用いられるマフラの
一実施例を示す概略構成図、第３図，第４図は本
考案の作動状態をそれぞれ示す概略図、第５図は
本考案の他の実施例を示す平面図、第６図は従来
の排気消音装置の全体を示す概略図、第７図ａ，
ｂは従来の排気消音装置の作動状態をそれぞれ示
す概略図である。１０……排気消音装置、１２……メインマフラ
（マフラ）、１４……第１テールチユーブ（開閉
側テールチユーブ）、１６……第２テールチユー
ブ（常開側テールチユーブ）、２６……制御バル
ブ（開閉手段）、２８……連通管、３０……第１
分流管、３２……第２分流管、Ａ……分岐部。 Fig. 1 is a partially sectional plan view showing the main parts of an embodiment of the present invention, Fig. 2 is a schematic configuration diagram showing an embodiment of a muffler used in the invention, and Figs. 3 and 4 are the invention 5 is a plan view showing another embodiment of the present invention, FIG. 6 is a schematic view showing the entire conventional exhaust silencer, and FIG. 7a,
FIG. 5B is a schematic diagram showing the operating state of a conventional exhaust muffling device. 10... Exhaust silencer, 12... Main muffler (muffler), 14... First tail tube (opening/closing side tail tube), 16... Second tail tube (normally open side tail tube), 26... Control valve (opening/closing means), 28... communicating pipe, 30... first
Branch pipe, 32...Second branch pipe, A...Branch portion.

Claims

[Claims for Utility Model Registration] A plurality of tail tubes connected to a muffler, an opening/closing means for opening and closing some of the tail tubes among the plurality of tail tubes, and opening/closing means closed by the opening/closing means. A communication pipe that communicates the downstream side of the opening/closing means of the side tail tube with the remaining normally open side tail tube, and when the opening/closing means is closed, the normally open side tail tube and the communication pipe communicate with each other. a first branch pipe that spouts exhaust gas in the direction in which the communicating pipe is connected to the exhaust flow of the branched part, and the communicating pipe is opposite to the direction in which the communicating pipe is connected to the exhaust flow of the branched part when the opening/closing means is opened; An exhaust muffling device characterized by being provided with a second flow branch pipe that spouts exhaust gas in a direction.