JPS6348924U

JPS6348924U -

Info

Publication number: JPS6348924U
Application number: JP14184186U
Authority: JP
Priority date: 1986-09-18
Filing date: 1986-09-18
Publication date: 1988-04-02
Anticipated expiration: 2001-09-18
Also published as: JPH0648117Y2

Description

[Brief explanation of the drawing]

第１図は、本考案の４弁ツインターボ過給機付
エンジンの概略図、第２図は、同エンジンの給気
マニホルドの一部断面斜視図である。第３図は、
従来のターボ過給機付エンジンの概略図である。１……エンジン、２……シリンダ、３……給気
ポート、３ａ……主給気ポート、３ｂ……副給気
ポート、４……排気ポート、４ａ……主排気ポー
ト、４ｂ……副排気ポート、５……給気マニホル
ド、５ａ……主給気マニホルド、５ｂ……副給気
マニホルド、６……主ターボ過給機、６ａ……タ
ービン、６ｂ……コンプレツサ、７……主給気通
路、８……副ターボ過給機、８ａ……タービン、
８ｂ……コンプレツサ、９……副給気通路、１０
……排気マニホルド、１１……主排気通路、１２
……副排気通路、１７……排気切換弁、１８……
給気切換弁、１９……主インタクーラ、２０……
副インタクーラ、２１……給気通路、２２……イ
ンタクーラ、２３……切換弁。 FIG. 1 is a schematic view of a four-valve twin-turbocharged engine of the present invention, and FIG. 2 is a partially sectional perspective view of the intake manifold of the engine. Figure 3 shows
FIG. 1 is a schematic diagram of a conventional turbocharged engine. 1... Engine, 2... Cylinder, 3... Air supply port, 3a... Main air supply port, 3b... Sub-air supply port, 4... Exhaust port, 4a... Main exhaust port, 4b... Sub- Exhaust port, 5...Air supply manifold, 5a...Main air supply manifold, 5b...Sub-air supply manifold, 6...Main turbo supercharger, 6a...Turbine, 6b...Compressor, 7...Main supply Air passage, 8... Sub-turbocharger, 8a... Turbine,
8b... Compressor, 9... Sub-air supply passage, 10
...Exhaust manifold, 11...Main exhaust passage, 12
...Sub-exhaust passage, 17...Exhaust switching valve, 18...
Supply air switching valve, 19...Main intercooler, 20...
Sub-intercooler, 21...Air supply passage, 22...Intercooler, 23...Switching valve.

Claims

[Scope of utility model registration request]

A main turbocharger that supercharges and supplies air with a compressor driven by a turbine installed in the main exhaust passage, and a sub-turbocharger that supercharges and supplies air with a compressor driven by a turbine installed in the auxiliary exhaust passage. In an engine equipped with a turbo supercharger, and in which the cylinder is provided with four valves: main and sub air intake ports that communicate with the main and sub air intake manifolds, and a main and sub exhaust port that communicates with the exhaust manifold, the turbo supercharger is The supply air supercharged by the feeder joins to form an integrated supply air passage, and is divided again at the supply manifold attached to the cylinder to form a main supply manifold and a sub-supply manifold. , an engine with a four-valve twin turbo supercharger, characterized in that an exhaust switching valve is installed in the auxiliary exhaust passage of the auxiliary turbo supercharger, and one intake air switching valve is installed in the main part of the auxiliary air intake manifold. .