JPS6354830U

JPS6354830U -

Info

Publication number: JPS6354830U
Application number: JP14882286U
Authority: JP
Priority date: 1986-09-30
Filing date: 1986-09-30
Publication date: 1988-04-13

Description

[Brief explanation of the drawing]

第１図は、従来にある大小容量ターボ過給機付
エンジンの概略図、第２図は、大小容量ターボ過
給機付エンジンの回転数に対する負荷の関係を示
す特性図、第３図は、本考案の大小容量ターボ過
給機の構造図である。１，１′…大容量ターボ過給機、２，２′…小
容量ターボ過給機、３′…エンジン、４′，８′
，１２…開閉切換弁、５，５′，９，９′…ター
ビン、６，６′，１０，１０′…コンプレツサ、
７，１１…前方排気ガス通路、１３…後方排気ガ
ス通路、１４…排気ガス、１５，１６…給気。 Fig. 1 is a schematic diagram of a conventional large and small capacity turbocharged engine, Fig. 2 is a characteristic diagram showing the relationship between load and rotation speed of large and small capacity turbocharged engines, and Fig. 3 is a FIG. 2 is a structural diagram of a large and small capacity turbocharger according to the present invention; 1, 1'...Large capacity turbocharger, 2,2'...Small capacity turbocharger, 3'...Engine, 4', 8'
, 12... Open/close switching valve, 5, 5', 9, 9'... Turbine, 6, 6', 10, 10'... Compressor,
7, 11...Front exhaust gas passage, 13...Rear exhaust gas passage, 14...Exhaust gas, 15, 16...Air supply.

Claims

[Claims for Utility Model Registration] 1. Large and small capacity turbochargers are arranged in parallel, and each turbocharger is switched on and off by the on-off switching valve. In engines with large and small capacity turbochargers, which allow air supply to be matched to engine conditions such as medium-speed and high-load regions and high-speed and high-load regions, the 1. An engine equipped with a turbo supercharger, characterized in that an on-off switching valve is provided, and the on-off switching valve is arranged at a confluence of rear exhaust gas passages of large and small capacity turbo superchargers. 2. A turbo-supercharger as set forth in claim 1 of the utility model registration claim, characterized in that an on-off switching valve is provided in each of the rear exhaust gas passages of a large-capacity turbo-supercharger and a small-capacity turbo-supercharger. engine.