JPH0226720U

JPH0226720U -

Info

Publication number: JPH0226720U
Application number: JP10486888U
Authority: JP
Priority date: 1988-08-10
Filing date: 1988-08-10
Publication date: 1990-02-21

Description

[Brief explanation of the drawing]

第１図及び第２図は本考案に係る車両の排気管
構造の第１の実施例のそれぞれ平面図及び側面図
、第３図は第１図の排気管のＡ―Ａ線に沿う横断
面図、第４図及び第５図は本考案に係る車両の排
気管構造の第２の実施例のそれぞれ平面図及び側
面図、第６図は第４図の排気管のＢ―Ｂ線に沿う
横断面図、第７図及び第８図は従来の排気管の取
付け配置を示すそれぞれ車両の平面図及び側面図
、第９図は従来の排気管の平面図、第１０図は第
９図の排気管のＣ―Ｃ線に沿う横断面図、第１１
図は第９図と異なる従来の排気管の平面図である
。１，１１……排気管、４ａ，４ｂ，４ｃ，４ｄ
……通路、５……くびれ部、１６……多孔板。 1 and 2 are a plan view and a side view, respectively, of a first embodiment of the exhaust pipe structure for a vehicle according to the present invention, and FIG. 3 is a cross-sectional view of the exhaust pipe in FIG. 1 taken along line AA. Figures 4 and 5 are a plan view and a side view, respectively, of a second embodiment of the exhaust pipe structure for a vehicle according to the present invention, and Figure 6 is taken along the line BB of the exhaust pipe in Figure 4. A cross-sectional view, FIGS. 7 and 8 are a plan view and a side view of a vehicle showing the mounting arrangement of a conventional exhaust pipe, respectively. FIG. 9 is a plan view of a conventional exhaust pipe, and FIG. Cross-sectional view along the line C-C of the exhaust pipe, No. 11
This figure is a plan view of a conventional exhaust pipe different from FIG. 9. 1, 11...exhaust pipe, 4a, 4b, 4c, 4d
... Passageway, 5 ... Neck part, 16 ... Perforated plate.

Claims

[Scope of claim for utility model registration] 1. Exhaust gas for a vehicle engine having a flat exhaust gas passage cross-sectional shape whose dimension in the vehicle height direction is smaller than the dimension in the vehicle width direction, and in which the passage cross-sectional area gradually increases toward the downstream side of the exhaust gas passage. 1. An exhaust pipe structure for a vehicle engine, wherein at least one of an upper surface and a lower surface in a vehicle height direction in a cross section of a passageway exhibits an uneven wave shape. 2. In the exhaust pipe of a vehicle that has a flat cross-sectional shape of the exhaust gas passage where the dimension in the vehicle height direction is smaller than the dimension in the vehicle width direction, and the passage cross-sectional area gradually increases toward the downstream side of the exhaust gas passage, a plurality of predetermined portions of the exhaust pipe are arranged. 1. An exhaust pipe structure for a vehicle engine, characterized in that the exhaust gas passage is divided into mutually independent passages, and a perforated plate is disposed within the exhaust gas passage on the upstream side of the independent passages.