Structurally asymmetric two-sided turbocharger wheel

摘要

A two-sided turbocharger compressor wheel (113) and a housing forming a diffuser for the compressor. A first side (201) and a second side (221) of the compressor wheel are characterized by different values of a trim and of an annulus area. A first side (251) of the diffuser surrounds the first side (201) of the compressor wheel (113), and a second side (271) of the diffuser surrounds the second side (221) of the compressor wheel (113). The first and second sides (251,271) of the diffuser are characterized by different annulus area ratios. The blades (205,225) of the first and second sides (201,221) of the compressor wheel are angularly offset from one another. The compressor wheel (113) is configured for greater flow through the side of the compressor wheel that faces away from a related turbine wheel (111).