JPH0278731U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view of an embodiment of a turbocharger arrangement structure for a two-stage turbo engine according to the present invention, and Fig. 2 is a cross-sectional view of essential parts taken along the - line in Fig. 1 in the direction of the arrow. It is. 1...Engine, 2...Exhaust manifold, 3...High pressure stage turbocharger, 4...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, 10... Exhaust control conduit, 30... Exhaust control valve.

Claims (1)

[Scope of utility model registration request] In a two-stage turbo engine having 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, the low-pressure The direction of the axes of the stage and high pressure stage turbocharger is in the same direction as the crankshaft direction of the engine, and both axes are offset from each other in the vertical direction, and the exhaust turbines of the low pressure stage and high pressure stage turbocharger are arranged to face each other, forming at least two exhaust gas collection openings in the exhaust manifold that open to the sides of the exhaust manifold;
The exhaust turbine of the high-pressure turbocharger is connected to the first collecting opening of the exhaust manifold, and the exhaust merging portion where exhaust gas from the exhaust turbine of the high-pressure turbocharging joins is connected to the second collecting opening. A turbocharger arrangement structure for a two-stage turbo engine, characterized in that the exhaust turbine of the low-pressure stage turbocharger is connected via an exhaust control conduit having an exhaust control valve and an exhaust control valve.