Turbine assembly

A turbine assembly for use on an internal combustion engine having an intake manifold and an exhaust manifold, said assembly comprising a housing having a chamber in which a turbine wheel is rotatably mounted, said housing chamber being provided with an exhaust gas entry and an exhaust gas exit;

• a hollow section disposed upstream of said housing chamber and having an inlet for communicating with the exhaust manifold, an outlet communicating with the chamber entry, and a bypass passageway having one end thereof connected to said hollow section intermediate said inlet and outlet, and a second end thereof terminating downstream of said gas exit;
• and a rotor mounted within said hollow section for movement between selected positions of adjustment, said rotor, when in a first selected position of adjustment, effecting substantially unrestricted exhaust gas flow from the exhaust manifold to the housing chamber through the hollow section;
• and when said rotor is disposed in a second selected position of adjustment, a predetermined amount of the exhaust gas flow is diverted through the bypass passageway while the remainder thereof passes through the hollow section to the housing chamber.