JPS6441612U

JPS6441612U -

Info

Publication number: JPS6441612U
Application number: JP13694287U
Authority: JP
Priority date: 1987-09-08
Filing date: 1987-09-08
Publication date: 1989-03-13

Description

[Brief explanation of the drawing]

第１図乃至第３図は本考案の一実施例を示すも
のであつて、第１図はエンジン回転数の低いとき
における排気サイレンサの状態を示す概略の破断
面図、第２図は第１図に示した排気入口管の後端
部付近の構造を示す要部縦断面図、第３図はエン
ジン回転数の高いときにおける排気サイレンサの
状態を示す概略の破断面図、第４図は他の実施例
を示す概略の断面図である。４はサイレンサ本体、５は第１隔壁部材、６は
第２隔壁部材、７，１９は第１膨張室、８，２０
は第２膨張室、９，２１は第３膨張室、１０は吸
音層、１１は排気入口管、１２は接続部材（接続
手段）、１３はコイルばね（付勢手段、接続手段
）、１４は第２排気出口管、１４ｂは吸音孔、１
７は第１排気出口管、１８は第３隔壁部材、２２
は第４膨張室、２４は排気出口管である。 1 to 3 show one embodiment of the present invention, in which FIG. 1 is a schematic cutaway view showing the state of the exhaust silencer when the engine speed is low, and FIG. Figure 3 is a longitudinal cross-sectional view of the main part showing the structure near the rear end of the exhaust inlet pipe shown in the figure, Figure 3 is a schematic broken cross-sectional view showing the state of the exhaust silencer when the engine speed is high, and Figure 4 is another one. FIG. 2 is a schematic cross-sectional view showing an embodiment of the invention. 4 is a silencer main body, 5 is a first partition member, 6 is a second partition member, 7, 19 is a first expansion chamber, 8, 20
1 is a second expansion chamber, 9 and 21 are third expansion chambers, 10 is a sound absorption layer, 11 is an exhaust inlet pipe, 12 is a connecting member (connecting means), 13 is a coil spring (biasing means, connecting means), and 14 is a A second exhaust outlet pipe, 14b is a sound absorption hole, 1
7 is a first exhaust outlet pipe, 18 is a third partition member, 22
24 is a fourth expansion chamber, and 24 is an exhaust outlet pipe.

Claims

[Claims for Utility Model Registration] An exhaust inlet that has a plurality of expansion chambers partitioned by partition members inside, communicates the expansion chambers with the outside, and takes in exhaust gas sent from the engine side into the expansion chambers. a pipe, and an exhaust outlet pipe that communicates the expansion chamber with the outside and discharges the exhaust gas in the expansion chamber to the outside, and a large number of small holes are formed in the peripheral wall of the exhaust outlet pipe, and the small hole formation site In an exhaust silencer in which a sound absorption layer is provided around the exhaust outlet pipe, a sound absorbing layer is provided between the exhaust inlet pipe and the exhaust outlet pipe in the expansion chamber, and the exhaust silencer responds to the pressure of the exhaust gas discharged from the exhaust inlet pipe. A connecting member that connects the exhaust inlet pipe and the exhaust outlet pipe against the biasing force of the biasing means when the gas pressure exceeds a predetermined value, and a biasing member that biases the connecting member toward the exhaust inlet pipe. An exhaust silencer characterized in that it is provided with a connection means consisting of a power supply means and a power supply means.