ROTOR-SHAFT BEARING APPARATUS FOR MOVABLE VANE COMPRESSORS

摘要

Bearing apparatus for movable vane compressor is provided with a pressure-reducing passage extending from an annular clearance between the inner side surface of the bearing and the side surface of the rotor to the open air or the like, such as the suction-chamber and the suction-working space. Compressed air enters the annular clearance through a gap between the inner side surface of the side housing and the side surface of the rotor from the compression-working space between two adjacent vanes and then runs out through the pressure-reducing passage without pushing the bearing grease from the bearing.