JPS6451719U

JPS6451719U -

Info

Publication number: JPS6451719U
Application number: JP14746187U
Authority: JP
Priority date: 1987-09-29
Filing date: 1987-09-29
Publication date: 1989-03-30

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す側面図。第２
図は第１図を左方側から見た正面図。第３図は第
２図の―線断面図。第４図は第２図の―
線断面図。第５図は第２図の―線断面図。第
６図は本考案の他の実施例を示す簡略正面図。１：エンジン本体、１１：排気マニホールド、
１１Ａ：第１分岐通路群、１１Ｂ：第２分岐通路
群、１２ａ〜１２ｄ：分岐通路、１４：膨出部、
１５：膨張室、Ｘ１，Ｘ２：（分岐通路群の）集
合部、Ｙ：最終集合部。 FIG. 1 is a side view showing an embodiment of the present invention. Second
The figure is a front view of Figure 1 seen from the left side. Figure 3 is a sectional view taken along the line -- in Figure 2. Figure 4 is the same as Figure 2.
Line sectional view. FIG. 5 is a sectional view taken along the line -- in FIG. FIG. 6 is a simplified front view showing another embodiment of the present invention. 1: Engine body, 11: Exhaust manifold,
11A: first branch passage group, 11B: second branch passage group, 12a to 12d: branch passage, 14: bulge,
15: Expansion chamber, X1, X2: Collecting part (of branch passage group), Y: Final collecting part.

Claims

[Scope of claim for utility model registration] A first cylinder consisting of a plurality of cylinders whose intake strokes are not consecutive.
The first cylinder is connected to the cylinder group and has a collecting section on the downstream side.
A second cylinder consisting of a group of branch passages and multiple cylinders whose intake strokes are not consecutive.
A second cylinder connected to the cylinder group and having a collecting part on the downstream side.
An engine exhaust manifold structure comprising: a branch passage group; and a final gathering part that is connected to a gathering part of the first branch passage group and a gathering part of the second branch passage group, wherein the first branch is located in front of the engine main body. A passage group is arranged, and the second branch passage group is arranged between the first branch passage group and the engine main body, and an expansion chamber extends from the second branch passage group to the final gathering part. An exhaust manifold structure for an engine, characterized in that a bulge forming a bulge is formed.