STAGED TURBOCHARGER

摘要

A turbocharger (24) comprising a turbine (28), director (2), and compressor (34). The turbine (28) may be formed as a turbine wheel (68) surrounded by at least two scrolls (26). The at least two scrolls (26) may direct exhaust gases supplied thereto toward the turbine wheel (68) to cause rotation thereof. The director (22) may control distribution of the exhaust gases between the at least two scrolls (26) to optimize circumferential velocity in the each scroll (26), and thus impingement velocity on the turbine wheel (68). The compressor (34) may be driven by the turbine (28).