Engine with a two stage, switchable turbocharging system

摘要

The device has an exhaust collector (4) connected to a high pressure turbine (5) via a first outlet (14) located in a collector end section (13), and connected to a low pressure turbine (6) via a collector outlet in the central section (15). A connection line (17) between the pressure turbines separately feeds exhaust from the second collector outlet to the low pressure turbine. A regulated channel associated with the second collector outlet serves as bypass for the high pressure turbine.