Patent ID: 6729858
Filing Date: 2004-05-04
Classification: F04D,F16C

Abstract:
A turbo compressor comprising:a casing having a fluid chamber for receiving a fluid from an external source; a driving unit disposed in the casing and generating a rotational force; a first compressing part installed at one end of a rotational shaft rotated by the driving unit and first compressing the fluid; a second compressing part installed at the other end of the rotational shaft and secondly compressing the fluid compressed in the first compressing part; and a bearing cooling unit for supplying fluid from the fluid chamber to a bearing chamber to perform a cooling operation when a temperature of the bearing chamber, where a thrust bearing for supporting a load working in an axial direction of the rotational shaft is mounted, is increased, and cutting off the fluid from being introduced into the bearing chamber when the temperature of the bearing chamber is maintained at a proper level.