DUAL VOLUTE TURBOCHARGER TO OPTIMIZE PULSE ENERGY SEPARATION FOR FUEL ECONOMY AND EGR UTILIZATION VIA ASYMMERIC DUAL VOLUTES

摘要

A product is provided for use in a turbocharger system. The turbine housing may define a center core that is a circular shape with a circumference. The turbine housing may define a first volute extending for a length around only a portion of the circumference of the center core, and a second volute positioned radially outside the first volute and extending entirely around the circumference of the center core. there is. The first and second volutes may define first and second exhaust gas passages through the turbine housing, which may be asymmetrical. All points of the second volute may exist radially outside the first volute from the center core over the entire length of the first volute.