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CN102483031A 环形凸轮以及包括环形凸轮的流体工作机器 无效 - 撤回

环形凸轮以及包括环形凸轮的流体工作机器
摘要：
一种流体工作机器包括一个环形凸轮(1)、限定了一个工作室的至少一个活塞(11)、以及与这个或每个工作室相关联的至少一个阀门(19，21)，该阀门用于同多个工作室容积周期成定相关系地将该工作室交替地连接到低压与高压歧管(23，25)上。这个环形凸轮具有一个波状的凸轮工作表面用于同该至少一个活塞的运行性接合。该波状凸轮表面的这些波形各自具有一个前导面(70)和一个跟随面(72)以及多个不连续点(4)，如多个保持螺栓(3)的开口(4)，这些不连续点被定位在该前导面与该跟随面中该至少一个活塞在与多个工作室容积周期成定相关系地流入和流出该工作室的流体流动所导致的正常运行的过程中做最少的功的那个面上。其结果是减少了在凸轮随动元件(如多个活塞滚轮(9))上的磨损。
摘要（英）：

A fluid-working machine comprising a ring cam (1), at least one piston (11) defining a working chamber, and at least one valve (19, 21) associated with the or each working chamber for connecting the working chamber alternately to low and high pressure manifolds(23, 25) in phased relationship to cycles of working chamber volume. The ring cam has a wave-like cam working surface for operative engagement with the at least one piston. The waves of the wave-like cam surface each having a leading face (70) and a trailing face (72) and discontinuities (4), such as apertures (4) to retain bolts (3), are located in the working surface on whichever of the leading face and the trailing face the at least one piston does least work during normal operation resulting from the flow of fluid into and out of the working chamber in phased relationship to cycles of working chamber volume. As a result, there is reduced wear on cam following elements, such as piston rollers (9).

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