JPS6254211U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例を示すその消音装置
の模式的断面図、第２図はその実施例における消
音特性を示すグラフである。 １……マフラ、６……拡張室、７……第１の共
鳴室、８……第２の共鳴室、１０……第１の排気
導入管、１１……第２の排気導入管、１２……第
１の連通管、１３……第２の連通管、１４……第
３の連通管、１６……排気出口管。 FIG. 1 is a schematic cross-sectional view of a silencing device showing an embodiment of the present invention, and FIG. 2 is a graph showing the silencing characteristics of the embodiment. DESCRIPTION OF SYMBOLS 1... Muffler, 6... Expansion chamber, 7... First resonance chamber, 8... Second resonance chamber, 10... First exhaust introduction pipe, 11... Second exhaust introduction pipe, 12 ...First communication pipe, 13...Second communication pipe, 14...Third communication pipe, 16...Exhaust outlet pipe.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 内部に拡張室、第１の共鳴室及び第２の共鳴室
を有する消音装置本体と、この拡張室に開口する
第１の排気導入管及び第２の排気導入管と、第１
の排気導入管と同軸上に設けられて拡張室と第１
の共鳴室とを連通する第１の連通管と、第２の排
気導入管と同軸上に設けられて拡張室と第２の共
鳴室とを連通する第２の連通管と、第１の共鳴室
と第２の共鳴室とを連通する第３の連通管と、上
記消音装置本体より排気を排出する排気出口管と
を備えたことを特徴とする内燃機関の消音装置。 A silencer main body having an expansion chamber, a first resonance chamber, and a second resonance chamber inside, a first exhaust introduction pipe and a second exhaust introduction pipe opening into the expansion chamber, and a first exhaust introduction pipe.
The expansion chamber and the first
a first communication pipe that communicates with the resonance chamber; a second communication pipe that is provided coaxially with the second exhaust introduction pipe and communicates the expansion chamber with the second resonance chamber; A muffler for an internal combustion engine, comprising: a third communication pipe that communicates the chamber and the second resonance chamber; and an exhaust outlet pipe that discharges exhaust from the muffler main body.