| 摘要 |
<p>A turbocharger (10) for an internal combustion engine includes a symmetric twin-volute turbine housing (12) having first and second volutes (16, 18). A turbine wheel (22) is disposed within the symmetric twin-volute turbine housing (12) for rotation about a turbocharger axis (R1). A nozzle ring (42, 58) is fixedly secured to the symmetric twin-volute turbine housing (12). The nozzle ring (42, 58) includes a plurality of fixed vanes (44, 62, 66) disposed circumferentially around the turbocharger axis (R1). The plurality of fixed vanes (44, 62, 66) form nozzle passages leading from at least one of the first and second volutes (16, 18) to the turbine wheel (22) for directing exhaust gas against the turbine wheel (22) at an optimum angle.</p> |
