Patent ID: 8499559

Claim:
A turbine housing of a turbo-charger engine system for an internal combustion engine, the turbine housing comprising: a low-pressure charger opening attachable to a low-pressure turbo-charger; a high-pressure charger opening attachable to a high-pressure turbo-charger; a low-pressure exhaust duct in operable communication between the low-pressure charger opening and high-pressure charger opening; a high-pressure exhaust opening in operable communication via a high-pressure exhaust duct with the high-pressure charger opening, the high-pressure exhaust opening attachable to a corresponding flange at an exhaust manifold of the internal combustion engine; a short-cut exhaust opening in operable communication via a short-cut duct with the low-pressure charger opening, the short-cut exhaust opening being attachable to a corresponding flange at an exhaust manifold of the internal combustion engine; a high-pressure turbine by-pass valve area located in the short-cut duct; an external connection opening attachable to a muffler, the external connection opening in operable communication with the low-pressure charger opening, the external connection opening further in operable communication with the low-pressure exhaust duct via a low-pressure turbine exhaust bypass duct; and a waste gate valve area provided in the low-pressure turbine exhaust bypass duct, wherein a high-pressure exhaust flange and the short-cut exhaust flange are facing essentially in the same direction.