发明授权
US06739756B2 Combination thrust bearing and journal bearing, and method for distributing fluid to same
失效
组合推力轴承和轴颈轴承,以及将流体分配到其中的方法
- 专利标题: Combination thrust bearing and journal bearing, and method for distributing fluid to same
- 专利标题(中): 组合推力轴承和轴颈轴承,以及将流体分配到其中的方法
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申请号: US10320592申请日: 2002-12-16
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公开(公告)号: US06739756B2公开(公告)日: 2004-05-25
- 发明人: William H. Miller
- 申请人: William H. Miller
- 主分类号: F16C1703
- IPC分类号: F16C1703
摘要:
A thrust bearing tilting pad has face with a border region including an engagement surface and defining a pocket with generally longitudinal sidebars and a bottom. The pad has leading and trailing portions, with the face extending generally longitudinally therebetween. The leading and trailing portions can be positioned upstream and downstream, respectively, relative to a direction of movement of a runner. The pad is pivotally supported by (e.g., mechanical and/or hydrostatic) pivot and can cooperate with one or more other pads and fluid within a housing to hydrodynamically and mechanically support the runner in an axial position. In another embodiment, the pad tilts free of mechanical engagement with other pads. The leading portion can define an entrance to the pocket and the sidebars can converge along the direction of motion of the runner. The pocket hydrodynamically increases pressure on the runner during rotation, and generates pressure effecting on the face counteraction force about the pivot and upstream relative to the rotation direction in order to counteract spragging force. The pocket can also have a generally tapered profile or an abrupt step.
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