JPS62122109U

JPS62122109U -

Info

Publication number: JPS62122109U
Application number: JP963486U
Authority: JP
Priority date: 1986-01-28
Filing date: 1986-01-28
Publication date: 1987-08-03

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係る内燃機関用排
気マニホルドの断面図、第２図は、第１図の排気
マニホルドの外観図、第３図は本考案の排気マニ
ホルドにおける８００°Ｃにおける輻射、伝導、
強制対流の各熱伝達の寄与割合図、第４図イは実
開昭５７―１１４１２２号公報の排気管の部分断
面図、第４図ロは第４図イにおける温度分布傾向
図、第５図は本考案における温度分布傾向図、で
ある。１……シリンダブロツク、２……ピストン、３
……シリンダヘツド、４……点火プラグ、５……
吸気バルブ、６……吸気ポート、７……排気バル
ブ、８……排気ポート、９……吸気マニホルド、
１０……燃料噴射弁、１１……排気マニホルド上
部、１２……排気マニホルド下部、１３……排気
マニホルド下部外壁、１４……排気マニホルド下
部内壁、１５，２０……排気マニホルド下部内壁
内面、１６，２１……排気マニホルド下部内壁外
面、１７……多孔質金属、１８，１９……多孔質
金属表面、２２，２４……冷却水用パイプ、２３
……冷却水通路、２５……排気管、２６……酸素
センサ。 Fig. 1 is a sectional view of an exhaust manifold for an internal combustion engine according to an embodiment of the present invention, Fig. 2 is an external view of the exhaust manifold of Fig. 1, and Fig. 3 is an exhaust manifold of the present invention at 800°C. radiation, conduction,
Figure 4A is a partial cross-sectional view of the exhaust pipe in Japanese Utility Model Application Publication No. 114122/1983, Figure 4B is a temperature distribution trend diagram in Figure 4A, Figure 5 is a temperature distribution trend diagram in the present invention. 1...Cylinder block, 2...Piston, 3
...Cylinder head, 4...Spark plug, 5...
Intake valve, 6...Intake port, 7...Exhaust valve, 8...Exhaust port, 9...Intake manifold,
10...Fuel injection valve, 11...Exhaust manifold upper part, 12...Exhaust manifold lower part, 13...Exhaust manifold lower outer wall, 14...Exhaust manifold lower inner wall, 15, 20...Exhaust manifold lower inner wall inner wall, 16, 21... Exhaust manifold lower inner wall outer surface, 17... Porous metal, 18, 19... Porous metal surface, 22, 24... Cooling water pipe, 23
...Cooling water passage, 25...Exhaust pipe, 26...Oxygen sensor.

Claims

[Scope of utility model registration request]

An exhaust manifold for a water-cooled internal combustion engine, which has a cooling water passage surrounding the wall on the outside of the wall of the exhaust manifold, wherein a porous metal that contacts exhaust gas is installed inside the exhaust manifold. Engine exhaust manifold.