JPH01139012U

JPH01139012U -

Info

Publication number: JPH01139012U
Application number: JP3611988U
Authority: JP
Priority date: 1988-03-18
Filing date: 1988-03-18
Publication date: 1989-09-22

Description

[Brief explanation of the drawing]

第１図は本考案の内燃機関の消音器の一実施例
を示す縦断面図、第２図は第１図の―線に沿
う断面図、第３図は第１図の消音器の後面図、第
４図は従来の内燃機関の消音器の縦断面図、第５
図は第４図の―線に沿う断面図、第６図は従
来の他の消音器の構造を示す縦断面図である。１１……外筒、１４……内筒、１４ａ，１４ｂ
……開口部、１４ｃ，１４ｄ……多孔取付片、１
４ｐ……孔、１５，１６……プレート、１７，１
８……通路、２０……吸音材、２１，２２……室
、２３……セパレータ。 FIG. 1 is a longitudinal sectional view showing an embodiment of the silencer for an internal combustion engine of the present invention, FIG. 2 is a sectional view taken along the line - in FIG. 1, and FIG. 3 is a rear view of the silencer shown in FIG. 1. , FIG. 4 is a vertical cross-sectional view of a conventional silencer for an internal combustion engine, and FIG.
The figure is a sectional view taken along the line -- in FIG. 4, and FIG. 6 is a longitudinal sectional view showing the structure of another conventional muffler. 11... Outer cylinder, 14... Inner cylinder, 14a, 14b
...Opening, 14c, 14d...Porous mounting piece, 1
4p...hole, 15,16...plate, 17,1
8... Passageway, 20... Sound absorbing material, 21, 22... Chamber, 23... Separator.

Claims

[Scope of utility model registration request]

The inside of the case is defined by a separator into two or more chambers, a sound absorbing material is provided between an outer cylinder of the case and an inner cylinder having a large number of holes inside the outer cylinder, and an egisource pipe is provided on one end side. A silencer having a tail pipe connected to the other end thereof, wherein two outer circumferences of the inner cylinder are directly attached to the outer cylinder via a mounting piece at least at a midway position in the axial direction of the case,
The separator is attached to the inner surface of the inner cylinder, and a hollow passage for passing exhaust gas is formed at the attachment part of the inner cylinder to the outer cylinder, and each of these passages has at least a part of its passage wall connected to the outer cylinder. A muffler for an internal combustion engine, characterized in that it is formed of a cylinder, the one passage communicates the chambers with each other, and the tail pipe communicates with the other passage.