JPS6373561U

JPS6373561U -

Info

Publication number: JPS6373561U
Application number: JP16892486U
Authority: JP
Priority date: 1986-10-31
Filing date: 1986-10-31
Publication date: 1988-05-17

Description

[Brief explanation of the drawing]

第１図は、本考案の一実施例に係るエンジンの
排気ガス再循環通路構造の縦断面図、第２図は、
第１図の―断面図、第３図は、第１図の排気
ガス再循環通路構造を備えた排気マニホルドの分
解斜視図、第４図は、第１図の排気ガス再循環通
路構造の横断面図、第５図は、第１図の排気ガス
再循環通路構造を備えたエンジンの斜視図、第６
図は、従来のエンジンの排気ガス再循環通路構造
の縦断面図、第７図は、鈑金製の排気マニホルド
の分解斜視図である。１……シリンダヘツド、３……排気ガス通路、
４……フランジ部、５……排気ガス導入路、１０
……排気マニホルド（鈑金製の排気マニホルド）
、１１……枝管、１２……切り欠き、４２……排
気ガス孔、４５……金属小片。 FIG. 1 is a longitudinal sectional view of an exhaust gas recirculation passage structure of an engine according to an embodiment of the present invention, and FIG.
1 is a cross-sectional view, FIG. 3 is an exploded perspective view of an exhaust manifold equipped with the exhaust gas recirculation passage structure of FIG. 1, and FIG. 4 is a cross-sectional view of the exhaust gas recirculation passage structure of FIG. The top view, FIG. 5, is a perspective view of the engine equipped with the exhaust gas recirculation passage structure shown in FIG.
This figure is a longitudinal sectional view of a conventional engine exhaust gas recirculation passage structure, and FIG. 7 is an exploded perspective view of an exhaust manifold made of sheet metal. 1...Cylinder head, 3...Exhaust gas passage,
4...Flange part, 5...Exhaust gas introduction path, 10
...Exhaust manifold (sheet metal exhaust manifold)
, 11...Branch pipe, 12...Notch, 42...Exhaust gas hole, 45...Small metal piece.

Claims

[Claims for Utility Model Registration] An exhaust gas recirculation passage structure for recirculating exhaust gas in an exhaust manifold to an intake manifold via an exhaust gas passage bored in a cylinder head, comprising: The exhaust manifold is composed of a branch pipe and a flange part, and the flange part has an exhaust gas hole through which the exhaust gas discharged from the combustion chamber of the engine passes, and an exhaust gas introduction path through which the exhaust gas to be recirculated passes. An exhaust gas recirculation passage structure for an engine, wherein the exhaust gas passage and the exhaust gas introduction passage are in communication with each other when the flange portion is attached to the cylinder head, wherein the exhaust manifold is provided with: A distal end portion of the branch pipe is inserted into the exhaust gas hole, and a notch is provided in the branch pipe in alignment with the exhaust gas introduction path, and a small flat metal piece is used to connect the notch and the exhaust gas. An exhaust gas recirculation passage structure for an engine, characterized in that the exhaust gas recirculation passage structure is configured by blocking a gas introduction passage.