Patent ID: 6324848
Filing Date: 2001-12-04
Classification: F02B,Y02T

Abstract:
A turbocharger system for an internal combustion engine, comprising:at least one rotatable shaft;a multi-stage compressor including a first compressor wheel carried by a corresponding said shaft, a first inlet associated with said first compressor wheel, a radially extending first outlet associated with said first compressor wheel, a second compressor wheel carried by a corresponding said shaft, a second inlet associated with said second compressor wheel, and a radially extending second outlet associated with said second compressor wheel;an interstage duct fluidly interconnecting in series said first outlet associated with said first compressor wheel with said second inlet associated with said second compressor wheel;at least one bypass duct, each said bypass duct fluidly interconnecting at least one of:said first outlet with said first inlet;said first outlet with an ambient environment; andsaid second outlet with said first outlet;at least one valve, each said valve positioned within a corresponding said bypass duct; anda controller coupled with each said valve, said controller selectively actuating each said valve.