Patent ID: 6609888
Filing Date: 2003-08-26
Classification: F01D,F16J

Abstract:
An axial compressor comprising:(a) an outer shell having an inlet, an outlet, and an inside and a plurality of rows of stator blades positioned in its inside; (b) a rotor rotatably and co-axially positioned in the outer shell and having an outside and a plurality of rows of rotor blades positioned on its outside; (c) a shaft co-axially positioned through the outer shell and the rotor; (d) a suction cone positioned co-axially with the outer shell and the rotor and including a shaft bearing housing containing a shaft bearing rotatably supporting the shaft, the bearing housing having a bearing lubricant inlet and a labyrinth seal between the bearing and the rotor; and, (e) a brush seal positioned in the suction cone or the bearing housing between the labyrinth seal and the rotor and in contact with the shaft to reduce the passage of a bearing lubricant past the brush seal toward the rotor.