JPH01149512U

JPH01149512U -

Info

Publication number: JPH01149512U
Application number: JP4540488U
Authority: JP
Priority date: 1988-04-04
Filing date: 1988-04-04
Publication date: 1989-10-17

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示し、第１図はマフ
ラーの断面図、第２図はマフラー内の隔壁部を示
す図、第３図は第２図の−線断面図である。１はマフラーケース、２，１６は吸音材、３は
隔壁、４は１次消音室、５は２次消音室、６，７
は板、８，９，１２，１３は膨出部、１０は３次
消音室、１１は消音通路、１４はテールパイプ、
１５はパイプ、１７は平坦部、１８，１９は小孔
、２１は排気入口、２２はスパークアレスター。 The drawings show one embodiment of the present invention; FIG. 1 is a cross-sectional view of a muffler, FIG. 2 is a view showing a partition in the muffler, and FIG. 3 is a cross-sectional view taken along the line -- in FIG. 2. 1 is a muffler case, 2 and 16 are sound absorbing materials, 3 is a partition wall, 4 is a primary silencing chamber, 5 is a secondary silencing chamber, 6 and 7
is a plate, 8, 9, 12, 13 are bulging parts, 10 is a tertiary silencing chamber, 11 is a silencing passage, 14 is a tail pipe,
15 is a pipe, 17 is a flat part, 18 and 19 are small holes, 21 is an exhaust inlet, and 22 is a spark arrester.

Claims

[Claims for Utility Model Registration] (1) The inside of the muffler case is divided by a partition wall to form a primary silencing chamber and a secondary silencing chamber having an exhaust inlet, and the partition wall is formed by overlapping two plates. Two plates bulge outward from each other in a part of the partition wall, and a pair of opposing bulges form a tertiary silencing chamber and a silencing passage communicating with the tertiary silencing chamber. , the primary silencing chamber and the secondary silencing chamber as well as the secondary silencing chamber and the tertiary silencing chamber are communicated through a number of small holes formed in the partition wall, respectively, and an exhaust outlet is provided at the exit end of the silencing passage. In the muffler, the tertiary silencing chamber is provided along substantially the entire length of the edge of the tertiary silencing chamber on one end side of the wall, and the silencing passage communicating with the tertiary silencing chamber extends from the one end of the silencing chamber to the diagonal corner of the partition wall. A muffler characterized by an arc-shaped muffler. (2) A spark arrester projecting into the primary silencing chamber is provided at the exhaust inlet, and this spark arrester is protrudingly arranged at a position surrounded by the tertiary silencing chamber and the silencing passage. Scarf.