JPS63162919U

JPS63162919U -

Info

Publication number: JPS63162919U
Application number: JP5529087U
Authority: JP
Priority date: 1987-04-10
Filing date: 1987-04-10
Publication date: 1988-10-25

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す正面図、第２
図は同実施例の排気装置を側部から見た要部断面
図、第３図は同実施例の要部詳細図である。１，２，３，４：排気通路、５：第１集合部、
６：第２集合部、７：第１連通路、８：第２連通
路。 Figure 1 is a front view showing one embodiment of the present invention;
The figure is a sectional view of the main parts of the exhaust system of the same embodiment as seen from the side, and FIG. 3 is a detailed view of the main parts of the same embodiment. 1, 2, 3, 4: exhaust passage, 5: first gathering part,
6: second gathering section, 7: first communication path, 8: second communication path.

Claims

[Scope of utility model registration request]

In a four-cylinder engine, the exhaust strokes of the first and fourth cylinders are not adjacent to each other, and the exhaust passages of the second
In an engine exhaust system in which the exhaust passages of a cylinder and a third cylinder are assembled into a dual manifold, each independent exhaust passage is upstream of a first gathering part where exhaust passages of a first cylinder and a fourth cylinder are gathered. A first communication passage that communicates with the exhaust passages of the first and third cylinders, and a second communication passage that communicates each independent exhaust passage on the upstream side of the second gathering part where the exhaust passages of the second and third cylinders are gathered. Said first of four cylinders
An exhaust system for an engine, characterized in that each independent exhaust passage upstream from the gathering part is curved toward each inlet part of the first communicating passage immediately upstream of each inlet part.