JPH0264725U

JPH0264725U -

Info

Publication number: JPH0264725U
Application number: JP14347988U
Authority: JP
Priority date: 1988-11-04
Filing date: 1988-11-04
Publication date: 1990-05-15

Description

[Brief explanation of drawings]

第１図は本考案に係る二段ターボエンジンのタ
ーボチヤージヤ配設構造の一実施例の全体側面図
、第２図は第１図の―線に沿い矢印方向から
見た、要部を断面した図、第３図は第２図の―
線に沿い矢印方向から見た要部拡大外観図、第
４図は排気制御弁駆動装置の縦断面図である。１…エンジン、２…排気マニホルド、３…高圧
段ターボチヤージヤ、５…高圧段排気タービン、
５…高圧段コンプレツサ、６…低圧段ターボチヤ
ージヤ、７…低圧段排気タービン、８…低圧段コ
ンプレツサ、９…排気導管、１０…排気制御装置
、１１…排気管、１５，１６，１７…吸気導管、
１８…吸気バイパス通路、１９…吸気バイパス弁
、２０…アクチユエータ。 Fig. 1 is an overall side view of an embodiment of the turbocharger arrangement structure for a two-stage turbo engine according to the present invention, and Fig. 2 is a cross-sectional view of the main parts as seen from the direction of the arrow along the - line in Fig. 1. , Figure 3 is the same as in Figure 2.
FIG. 4 is an enlarged external view of the main part viewed from the direction of the arrow along the line, and FIG. 4 is a longitudinal sectional view of the exhaust control valve driving device. 1...Engine, 2...Exhaust manifold, 3...High pressure stage turbocharger, 5...High pressure stage exhaust turbine,
5... High pressure stage compressor, 6... Low pressure stage turbocharger, 7... Low pressure stage exhaust turbine, 8... Low pressure stage compressor, 9... Exhaust pipe, 10... Exhaust control device, 11... Exhaust pipe, 15, 16, 17... Intake pipe,
18... Intake bypass passage, 19... Intake bypass valve, 20... Actuator.

Claims

[Scope of utility model registration request]

In a two-stage turbo engine that has a large-capacity low-pressure turbocharger that supercharges intake air and a small-capacity high-pressure turbocharger that further supercharges the air supercharged by the low-pressure turbocharger and sends it to the engine, an exhaust manifold is used. at least two exhaust gas collecting openings are formed in the exhaust manifold, a high pressure stage exhaust turbine of the high pressure stage turbocharger is connected to the first collecting opening of the exhaust manifold, and a second exhaust gas collecting opening opening on the lower side of the exhaust manifold is connected. The low-pressure exhaust turbine of the low-pressure turbocharger is connected to the collection opening through an exhaust control device that integrally includes an exhaust gas confluence section where exhaust gas from the high-pressure exhaust turbine joins and an exhaust control valve. A turbocharger arrangement structure for a two-stage turbo engine characterized by being connected.