JPS6174612U

JPS6174612U -

Info

Publication number: JPS6174612U
Application number: JP15844784U
Authority: JP
Priority date: 1984-10-22
Filing date: 1984-10-22
Publication date: 1986-05-20

Description

[Brief explanation of the drawing]

図面は本考案の実施の一例を示すもので第１図
は縦断側面図、第２図は同上のＡ−Ａ視切断面図
、第３図は第１図におけるＢ−Ｂ視切断面図であ
る。２，２′……吸音材、５……多孔筒、９……導
気管、１０……衝音壁板、１１……反射区劃板、
１２……一次消音室部、１３……二次消音室部、
１４……後端閉塞板部、１５……最終消音室部、
１７，１７′……拡散干渉筒、１８……他端、１
９，１９′……絞り孔、２０，２０′……反射壁
板、２１，２１′，２１″……反射拡散干渉室、
２２，２２′，２２″……絞り筒、２４……内部
吸音筒、２５……閉塞端部、２６……排気管。 The drawings show an example of the implementation of the present invention, and FIG. 1 is a longitudinal sectional side view, FIG. 2 is a sectional view taken along line A-A of the same, and FIG. be. 2, 2'...Sound absorbing material, 5...Porous tube, 9...Air guide pipe, 10...Sound barrier plate, 11...Reflection section plate,
12...Primary silencing chamber section, 13...Secondary silencing chamber section,
14... Rear end closing plate part, 15... Final silencing chamber part,
17, 17'... Diffusion interference tube, 18... Other end, 1
9, 19'...Aperture hole, 20, 20'...Reflection wall plate, 21, 21', 21''...Reflection diffusion interference chamber,
22, 22', 22''... Throttle tube, 24... Internal sound absorbing tube, 25... Closed end, 26... Exhaust pipe.

Claims

[Scope of utility model registration request]

Sound absorbing material 2 is provided on the peripheral surface and the front end surface through which the air guide pipe 9 is installed.
The inside of the perforated cylinder 5 in which the silica is arranged is partitioned by a sound-absorbing wall plate 10 and a reflection section plate 11 to form a primary silencing chamber section 12, a secondary silencing chamber section 13, and a final silencing chamber section 15. Diffusion interference cylinder 1 in which a chamber part 12 and a secondary silencing chamber part 13 are closed at the other end 18 and a throttle hole 19 is provided on the circumferential surface.
7, and the inside of the secondary silencing chamber section 13 is divided by reflective wall plates 20, 20' to form a plurality of reflection diffusion interference chambers 21, 21', 21'', and the plurality of reflection diffusion interference chambers 21, 21', 21'' are formed. 21, 21', 21'' are communicated with each other through aperture tubes 22, 22' whose positions are eccentrically arranged, and further, the reflection diffusion interference chamber 21'' is communicated with the final silencing chamber section 15 via the aperture tube 22''. An internal sound absorbing cylinder 24 having a diffusion interference cylinder 17' provided with a plurality of throttle holes 19' on the circumferential surface near the closed end 25 is provided in the final silencing chamber 15, and the internal sound absorbing cylinder 24 has a diffusion interference cylinder 17' connected to the front end thereof. The rear end of the sound absorbing cylinder 24 is connected to the rear end closing plate part 1 of the final sound deadening chamber part 15.
4. A silencer connected to an exhaust pipe 26 extending through the pipe 4.