JPS5830710U

JPS5830710U - Engine muffler structure

Info

Publication number: JPS5830710U
Application number: JP12441381U
Authority: JP
Inventors: 明彦毛利
Original assignee: 株式会社クボタ
Priority date: 1981-08-22
Filing date: 1981-08-22
Publication date: 1983-02-28

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]

図面は本考案に係るエンジンのマフラー構造の実施の態
様を例示し、第１図は全体縦断側面図、第２図は第１図
の■−■線断面図である。１・・・・・・外壁、２・・・・・・マフラーケース、
３・・間第１隔壁、４・・・・・・第２隔壁、６・曲・
始端側排気管、７・・′・・・・中間排気管、８・・・
・・・終端側排気管、Ａ・・回置画室、Ａ１・・・・・
・膨張室、Ａ２・・・・・・共鳴室、ａ、　ｂ・・・・
・・吸音材、ｃ、　　ｄ・・・・・・小径孔。The drawings illustrate an embodiment of the engine muffler structure according to the present invention, and FIG. 1 is an overall longitudinal sectional side view, and FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1. 1... Outer wall, 2... Muffler case,
3. First bulkhead, 4... Second bulkhead, 6. Curved.
Starting end side exhaust pipe, 7...'...Intermediate exhaust pipe, 8...
・・・Terminal side exhaust pipe, A... Turning chamber, A1...
・Expansion chamber, A2...Resonance chamber, a, b...
...Sound absorbing material, c, d...Small diameter hole.

Claims

[Scope of utility model registration request]

A first partition wall 3.3 with a sound-absorbing material forming at least three compartments A in the longitudinal direction of the cylindrical muffler case 2 formed by the outer wall 1 having the sound-absorbing material a. and an expansion chamber A□ in the longitudinal direction of the muffler case 2 in each of the compartments A.
A second partition wall 4 is provided to divide the resonance chamber A2 into a resonance chamber A2, and a starting end side exhaust pipe 6 connected to the engine is connected to the resonance chamber A2.
The tip opening of the most upstream one is the resonance chamber A.
2 and the expansion chamber A1 through a small diameter hole C bored in the pipe wall, and the terminal end exhaust pipe 8 is connected to the most of the compartments A. The intermediate exhaust pipe 7.7 is connected to the expansion chamber A1 of the downstream one, and extends over the adjacent ones of the compartments A. A□ are in communication with each other, and the tip opening is in communication with the resonance chamber A2 on the downstream side, and the starting end side and intermediate exhaust pipes 6, 7. - A muffler structure for an engine, characterized in that the axis phases of the muffler case 2 are different when viewed in the longitudinal direction of the muffler case 2.