AXIAL COMPRESSOR WITH A MAGNETIC STEPPER OR SERVO MOTOR

摘要

An axial compressor (30) is disposed upstream from a compressor wheel (16), and may be mounted in the inlet pipe (32) of a compressor housing (26) of a turbocharger (10). The axial compressor (30) can increase the pressure ratio approximately 1.3. The axial compressor (30) can be driven by a motor (40), such as a magnetic stepper, servo and squirrel cage motor. The axial compressor may have a fan (34) where boost can be controlled by speed of the fan (34), which can be accelerated or decelerated depending on use conditions. A magnetic stepper motor (40) can drive the fan (34) with a fan wheel (36) having magnets (44) associated with energizeable coils (42) that make a rotating magnetic field that the magnets (44) can follow.