JPH0280717U

JPH0280717U -

Info

Publication number: JPH0280717U
Application number: JP15993788U
Authority: JP
Priority date: 1988-12-07
Filing date: 1988-12-07
Publication date: 1990-06-21

Description

[Brief explanation of drawings]

第１図は本考案の第１の実施例に係るサイレン
サー構造を備えたサイレンサーの縦断面図、第２
図は第１図の−縦断面図、第３図は第１図の
−横断面図、第４図は第１図に示した排気案
内管の変形例を示す縦断面図、第５図は本考案の
第２の実施例に係るサイレンサー構造を備えたサ
イレンサーの縦断面図、第６図は第５図の−
縦断面図、第７図は第５図に示した排気案内管の
変形例を示す縦断面図である。１，２１……サイレンサー、２，２２……サイ
レンサーシエル、３，２３……外筒、４Ａ，４Ｂ
，２４Ａ，２４Ｂ……端面板、５，２５……排気
案内管、６，２６……第１管体、７，２７……第
２管体、８，２８，２９……凸条、１０，３１，
３２，３５……共鳴通路、１１，３３……排気ガ
ス通路、１２……共鳴口、１３，３４……共鳴室
。 FIG. 1 is a longitudinal cross-sectional view of a silencer equipped with a silencer structure according to a first embodiment of the present invention, and a second
The figure is a vertical sectional view of FIG. 1, FIG. 3 is a horizontal sectional view of FIG. 1, FIG. 4 is a vertical sectional view showing a modification of the exhaust guide pipe shown in FIG. 1, and FIG. A vertical sectional view of a silencer equipped with a silencer structure according to a second embodiment of the present invention, FIG.
7 is a longitudinal sectional view showing a modification of the exhaust guide pipe shown in FIG. 5. FIG. 1, 21... Silencer, 2, 22... Silencer shell, 3, 23... Outer cylinder, 4A, 4B
, 24A, 24B... End plate, 5, 25... Exhaust guide pipe, 6, 26... First pipe body, 7, 27... Second pipe body, 8, 28, 29... Convex strip, 10, 31,
32, 35... Resonance passage, 11, 33... Exhaust gas passage, 12... Resonance port, 13, 34... Resonance chamber.

Claims

[Scope of utility model registration request]

An exhaust guide pipe is provided passing through a resonance chamber formed in the silencer shell in the form of a closed container, and a resonance passage having a predetermined cross-sectional area and passage length is provided in a portion of the exhaust guide pipe corresponding to the resonance chamber. The exhaust guide pipe has a two-piece structure consisting of a first pipe body and a second pipe body that are fitted into each other in the axial direction at a position facing the resonance chamber. and the first
The first tube, which is fitted on the radially outer side of the tube and the second tube, has the second tube fitted on the inside thereof.
A convex strip that bulges outward in the radial direction is formed at a portion that becomes a fitting joint to the tube body, spanning the entire axial length of the fitting joint, and the first tube body and the second tube body are fitted together. In the inserted and joined state, the protrusion and the corresponding second
A silencer structure for an engine, characterized in that the resonance passage is constituted by a gap formed between the tube body and the outer circumferential surface of the tube body.