JPH0442210U

JPH0442210U -

Info

Publication number: JPH0442210U
Application number: JP8426190U
Authority: JP
Priority date: 1990-08-08
Filing date: 1990-08-08
Publication date: 1992-04-09

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例の正面略図、第２
図は第１図の実施例の一部を示す拡大横断面図、
第３図は断熱ブラケツトの側面図、第４図は第１
図の一部を示す斜視図、第５図は第１図の一部を
拡大した縦断正面図、第６図は自動車への消音器
の搭載例を示す正面略図、第７図は本考案の第２
実施例の正面略図、第８図は第７図の一部を拡大
した縦断正面図、第９図は本考案の第３実施例の
一部を示す正面略図、第１０図は従来技術の車輌
搭載例を示す側面略図、第１１図と第１２図は従
来技術のそれぞれ異なる例を示す正面略図である
。１３……触媒コンバータ、１４……アウトレツ
トパイプ、２１……主マフラ、２５……フレキシ
ブルパイプ、３１……アクテイブ消音用スピーカ
、３２……ブラケツト、３９……フレームメンバ
ー、１１，４３，４４……拡張室、４７……共鳴
室。 Figure 1 is a schematic front view of the first embodiment of the present invention;
The figure is an enlarged cross-sectional view showing a part of the embodiment shown in FIG.
Figure 3 is a side view of the insulation bracket, Figure 4 is the side view of the insulation bracket.
FIG. 5 is a longitudinal sectional front view enlarging a portion of FIG. 1, FIG. 6 is a schematic front view showing an example of mounting a silencer on a car, and FIG. Second
FIG. 8 is a longitudinal sectional front view that is a partially enlarged view of FIG. 7, FIG. 9 is a schematic front view showing a portion of the third embodiment of the present invention, and FIG. 10 is a conventional vehicle. A schematic side view showing a mounting example, and FIGS. 11 and 12 are schematic front views showing different examples of the prior art. 13... Catalytic converter, 14... Outlet pipe, 21... Main muffler, 25... Flexible pipe, 31... Active noise reduction speaker, 32... Bracket, 39... Frame member, 11, 43, 44... ...Expansion chamber, 47...Resonance chamber.

Claims

[Claims for Utility Model Registration] 1. A main muffler 21 that incorporates a catalytic converter 13 and has an outlet pipe 14 and that is attached to the engine, and a flexible pipe 25 that has one end opening communicating with the main muffler. , and an active muffling speaker 31 provided at the other end opening of the flexible pipe. 2 The speaker 31 is equipped with a bracket 32, which connects the frame member 3 of the automobile.
2. The internal combustion engine-mounted muffler according to claim 1, wherein the muffler is mounted on the internal combustion engine or the body and disposed in the engine room. 3 Catalytic converter 13 and expansion chambers 11, 43, 4
4 and the most downstream expansion chamber 1 of these expansion chambers.
A main muffler 21 is attached to the engine and has an outlet pipe 14 whose upstream end is open at 1 and 43, and an outlet pipe 14 having an outlet pipe 14 whose upstream end is open at one of the expansion chambers 11, 43, and a flexible pipe 25 with an opening communicating with it; a resonance chamber 47 communicating with the opening at the other end of the flexible pipe 25 and formed separately from the main muffler 21;
An internal combustion engine-mounted silencer comprising an active silencer speaker 31 attached to the resonance chamber 47. 4 The main muffler 21 has a plurality of expansion chambers 11, 43, and 44, and the most downstream expansion chamber 11,
4. The internal combustion engine-mounted muffler according to claim 3, wherein the one end opening of the flexible pipe 25 communicates with the muffler 43.