JPS6098713U

JPS6098713U - Silencer

Info

Publication number: JPS6098713U
Application number: JP19113083U
Authority: JP
Inventors: 新太郎山田
Original assignee: Individual
Current assignee: Individual
Priority date: 1983-12-13
Filing date: 1983-12-13
Publication date: 1985-07-05

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

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Ａ−Ａ切断面図、第３図は第１図に
おけるＢ−Ｂ切断面図である。　　　　′１・・・外被
筒体、２・・・前端板部、４・・・多孔吸音板、５・・
・前端吸音室、６・・・導気口部、７，７′・・・吸音
材、８・・・多孔内筒、９・・・環状吸音室、１１・・
・排出口部、１２・・・拡開切欠部、１３・・・筒音壁
板、１４・・・−次拡散室、１５・・・反射壁板、１６
・・・二次拡散室、１７・・・反射区劃板、１８・・・
三次拡散室、１９・・・四次拡散室、２０・・・絞り孔
、２１・・・第−拡散干渉筒、２２・・・他端、２３・
・・第二拡散干渉筒、２４・・・他端、２５・・・多孔
筒、２６・・・第三拡散干渉筒、２７・・・吸音筒体。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 cross-sectional view taken along the line A-A, and FIG. 3 is a cross-sectional view taken along the line B-B in FIG. '1... Outer cylindrical body, 2... Front end plate, 4... Porous sound absorbing plate, 5...
・Front end sound-absorbing chamber, 6... Air guide port, 7, 7'... Sound-absorbing material, 8... Porous inner cylinder, 9... Annular sound-absorbing chamber, 11...
・Discharge port part, 12... Expansion notch part, 13... Cylindrical sound wall plate, 14...-next diffusion chamber, 15... Reflection wall plate, 16
...Secondary diffusion chamber, 17...Reflection section plate, 18...
Tertiary diffusion chamber, 19... Quaternary diffusion chamber, 20... Throttle hole, 21...-th diffusion interference tube, 22... Other end, 23...
...Second diffusion interference tube, 24...Other end, 25...Porous tube, 26...Third diffusion interference tube, 27...Sound absorbing tube.

Claims

[Scope of Claim for Utility Model Registration] A cylindrical silencer in which a porous inner cylinder is arranged concentrically within an outer jacket cylinder to provide an annular sound-absorbing chamber, and the annular sound-absorbing chamber is filled with a sound-absorbing material. A sound absorbing material 7 is attached to the inner surface of the front end plate 2 of the cylindrical body 1 through a porous sound absorbing plate 4, and a front end sound absorbing chamber 5 is provided through which the air guide port 6 is inserted. A cylindrical sound wall board 13, a reflective wall board 15, and a reflective section board 17 each having an expanded notch 1 and 2 on the periphery are successively installed with a space left in the space.
Inside the secondary diffusion chamber 16, which forms a secondary diffusion chamber 14, a secondary diffusion chamber 16, a tertiary diffusion chamber 18, and a quaternary diffusion chamber 19, and communicates with the negative diffusion chamber 14 through the expansion notch 12 of the cylindrical sound wall plate 13. A first diffusion interference tube 21 having a plurality of aperture holes 20 on its circumferential surface is disposed, and the other open end 22 is communicated with the tertiary diffusion chambers 1 and 8, and the third diffusion interference cylinder 21 is provided in the tertiary diffusion chamber 1B. A second diffusion interference tube 23 having a plurality of aperture holes 20 on its circumferential surface is disposed at a different position from the diffusion interference tube 21, and the other end 24 to be opened communicates with the quaternary diffusion chamber 19. In the next diffusion chamber 19, a third diffusion interference tube 26 is provided with a sound absorbing material 7' on the circumferential surface of a perforated tube 25, and has a plurality of throttle holes 20 on the circumferential surface at one end of the porous tube 25.
This silencer has a sound-absorbing cylinder 27 connected to the sound-absorbing cylinder 27 and communicating the other end of the porous cylinder 25 of the sound-absorbing cylinder 27 to the discharge port 11.