Patent ID: 6398517
Filing Date: 2002-06-04
Classification: F04D

Abstract:
A turbo compressor comprising:a motor having a rotation shaft rotatable at a high speed; a first impeller installed at one end portion of the rotation shaft for primarily compressing outside air; a first volute housing for containing the air compressed by the first impeller; an intercooler having an inlet portion and an outlet portion, the inlet portion being installed adjacent the first volute housing for cooling the air compressed by the first impeller; a second impeller installed at the other end of the rotation shaft for secondarily compressing the air flowing from the intercooler; a second volute housing for containing the air compressed by the second impeller, wherein the rotation shaft of the motor is supported by at least one air foil bearing; a duct connecting the outlet portion of the intercooler to an inlet portion of the second impeller; and an inverter module to control the motor.