| 摘要 |
A thrust bearing for a rotating member that is subject to axial forces causing movement in an axial direction of a rotating member. A sealing surface is positioned on at least a portion of the rotating member. A bearing is positioned adjacent the rotating member. A sealing face is positioned on the bearing. The sealing face is disposed to be in opposed relationship with the sealing surface on the rotating member. A bearing space is located between the sealing face and the sealing surface. A fluid reservoir is positioned in the bearing and is in communication with the bearing space. A passageway extends through the bearing to a volute adjacent the rotating member to supply a fluid to the fluid reservoir. A plurality of pockets are positioned on the sealing face of the bearing. The pockets are positioned to be in communication with the fluid reservoir. A plurality of wedge shaped depressions are positioned on the sealing face of the bearing. The depressions are disposed to be positioned adjacent and in communication with the pockets and the fluid reservoir. Fluid from the reservoir enters the pockets. As the rotating member rotates, the fluid in the pockets is dragged by the rotating member in the wedge shaped depressions. The pressure on the fluid increases as the fluid is forced, due to the rotation of the rotating member, into a decreasing clearance formed by the wedge shaped depressions. The increased fluid pressure in the depressions also acts on the sealing face of the bearing to counteract axial forces placed on the rotating member. |
