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1.发明授权
公开(公告)号：US5784948A
公开(公告)日：1998-07-28
申请号：US912743
申请日：1997-08-18
摘要： A positive displacement pump including a plurality of pistons reciprocally driven in respective cylinders by a swashplate assembly to expel fluid during the pressure stroke of the piston from a chamber in communication with each piston. Oppositely disposed magnets are located respectively in an upper pressure face of each piston and in a check valve housing adjacent each cylinder to produce a magnetic force circuit accelerating movement of each piston toward and in continual contact with a cluster bearing associated with the swashplate assembly during the suction stroke of each piston. Like poles of each magnet face each other to produce a permanent levitating force on each piston.
摘要翻译： 一种容积式泵，其包括多个活塞，其通过斜盘组件在各个气缸中往复驱动，以在活塞的压力冲程期间从与每个活塞连通的室排出流体。 相对设置的磁体分别位于每个活塞的上压力面和邻近每个气缸的止回阀壳体中，以产生磁力回路，以加速每个活塞在与该斜盘组件相关联的集群轴承的持续接触期间的运动 每个活塞的吸入冲程。 类似于每个磁体的磁极彼此面对以在每个活塞上产生永久的悬浮力。
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公开(公告)号：US5829338A
公开(公告)日：1998-11-03
申请号：US811084
申请日：1997-03-03
CPC分类号： F04B1/148 , F16C17/047 , F16C33/1075
摘要： This invention pertains to a single-piece unidirectional tapered land thrust bearing cluster for use in high-pressure positive-displacement swashplate piston pumps and the like. The bearing cluster has a plurality of identical bearing pads integral to the bearing cluster. Each bearing pad includes a tapered section, a flat section and a fluid communicating slot integral therewith. During operation of the pump the swashplate camming surface rotates relative to the bearing cluster which develops a pressurized load-carrying hydrodynamic film of decreasing thickness and increasing strength between a back plate of the rotating swashplate and the bearing cluster.
摘要翻译： 本发明涉及用于高压正排量斜盘活塞泵等的单件式单向锥形陆面推力轴承座。 轴承座具有与轴承座一体的多个相同的轴瓦。 每个轴承瓦块包括锥形部分，平坦部分和与其成一体的流体连通槽。 在泵的操作期间，斜盘凸轮表面相对于轴承组件旋转，这产生了减小厚度的加压承载流体动力膜，并且在旋转斜盘的后板和轴承组之间增加了强度。
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