JPH0452928U

JPH0452928U -

Info

Publication number: JPH0452928U
Application number: JP9635490U
Authority: JP
Priority date: 1990-09-12
Filing date: 1990-09-12
Publication date: 1992-05-06

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す概略断面図、
第２図はガス通路切換システムを示す説明図、第
３図は第３弁の開弁時期を示す図、第４図は切換
バルブの負荷による切換域を示す図、第５図は従
来例を示す断面図である。４……主燃焼室、５……うず室、７……噴口、
１０……コレクタ、１２……第３弁、１４……第
３ポート、１５……切換弁、１６……コントロー
ルユニツト、１８……吸気通路、１９……排気マ
ニホルド、２０……排気通路。 FIG. 1 is a schematic sectional view showing an embodiment of the present invention;
Fig. 2 is an explanatory diagram showing the gas passage switching system, Fig. 3 is a diagram showing the opening timing of the third valve, Fig. 4 is a diagram showing the switching range depending on the load of the switching valve, and Fig. 5 is a diagram showing the conventional example. FIG. 4... Main combustion chamber, 5... Whirlpool chamber, 7... Nozzle,
10... Collector, 12... Third valve, 14... Third port, 15... Switching valve, 16... Control unit, 18... Intake passage, 19... Exhaust manifold, 20... Exhaust passage.

Claims

[Scope of utility model registration request]

In a whirlpool type diesel engine in which a swirl chamber is provided with a valve device for introducing gas that opens during the intake stroke, there is a gas inlet passage upstream of the valve device that communicates with the intake passage and exhaust passage of the engine, and a gas introduction passage that communicates with the intake passage and the exhaust passage of the engine, and What is claimed is: 1. A swirl chamber type diesel engine, comprising a switching valve that selectively communicates between an intake passage or an exhaust passage and the gas introduction passage.