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公开(公告)号：US6068460A
公开(公告)日：2000-05-30
申请号：US181440
申请日：1998-10-28
摘要： A two speed gerotor motor in which the rotary disk valve (47) and the balancing ring (67) cooperate with a control valve assembly (87) to define four different fluid zones arranged within a housing (21) in a generally concentric pattern to provide a relatively compact arrangement. Among the four fluid zones one (95) is always connected to an inlet (51) while another (101) is always connected to an outlet (53). The middle two zones (97, 99) communicate with each other in the high speed, low torque mode. Operatively associated with the control valve assembly (87) is a shuttle valve (103) such that high pressure is always communicated to the middle two zones, such that high pressure is always circulated within the gerotor gear set (17) in the high speed, low torque mode. The control valve (87) includes a spool valve (107) including dampening passages (123, 125, 127) which dampen or cushion the shifting of the spool valve between the high speed and low speed conditions.
摘要翻译： 一种双速转子马达，其中旋转盘阀（47）和平衡环（67）与控制阀组件（87）配合以限定布置在壳体（21）内的四个不同的流体区域，大致同心的图案，以提供 相对紧凑的布置。 在四个流体区域中，一个（95）总是连接到入口（51），而另一个（101）总是连接到出口（53）。 中间两个区域（97,99）以高速，低扭矩模式相互通信。 与控制阀组件（87）操作相关联的是梭阀（103），使得高压始终连通到中间两个区域，使得高压始终在高速运转齿轮组（17）内循环， 低扭矩模式。 控制阀（87）包括滑阀（107），滑阀（107）包括缓冲通道（123,125,127），其阻尼或缓冲滑阀在高速和低速状态之间的移动。
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公开(公告)号：US5593296A
公开(公告)日：1997-01-14
申请号：US602389
申请日：1996-02-16
摘要： A gerotor motor of the valve-in-star type in which the star (27) is disposed adjacent a stationary valve plate (15). The stationary valve plate (15) defines a plurality N+1 of valve passages (69), extending through the valve plate. On the surface (73) of the valve plate (15) adjacent the endcap member (14), the valve plate defines a plurality of pressure relieving recesses (79), each one being disposed between a pair of adjacent valve passages (69). Each of the recesses (79) is in fluid communication with an O-ring groove (81), which is at low pressure. Thus, any leakage from a high pressure passage (69) to an adjacent low pressure passage (69) is received within the intervening relieving recess (79), substantially eliminating any separating forces between the endcap member (14) and the stationary valve plate (15) This results in substantially improved volumetric efficiency of the motor at higher pressure differentials.
摘要翻译： 星形阀（27）的摆动马达，其中星形物（27）邻近固定阀板（15）设置。 固定阀板（15）限定多个N + 1个阀通道（69），延伸穿过阀板。 在邻近端盖构件（14）的阀板（15）的表面（73）上，阀板限定了多个减压凹槽（79），每个减压凹槽（79）均设置在一对相邻的阀通道（69）之间。 每个凹部（79）与处于低压的O形环槽（81）流体连通。 因此，从高压通道（69）到相邻的低压通道（69）的任何泄漏都被接纳在中间的缓冲凹槽（79）内，基本上消除了端盖构件（14）和固定阀板 这导致在较高压力差下马达的体积效率显着提高。
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公开(公告)号：US6099280A
公开(公告)日：2000-08-08
申请号：US291671
申请日：1999-04-14
摘要： A two-speed gerotor motor of the type having a stationary valve member (19) defining a plurality of stationary valve passages, each including an upstream passage portion for commutating fluid communication with a moveable valve member (43), and a downstream passage portion in continuous fluid communication with a volume chamber (33) of the gerotor gear set. In some of the stationary valve passages (113), the upstream (115) and downstream (117) passage portions are blocked from direct fluid communication. A control valve spool (89) has a first position (FIG. 8) permitting unrestricted fluid communication between the upstream and downstream passage portions, for normal low-speed operation. The control valve spool has a second position (FIG. 9) blocking communication between the upstream (115) and downstream (117) passage portions, and connecting all of the downstream portions together, communicating with a fluid accumulation region (91), such that fluid from those volume chambers recirculates, to provide a high-speed mode of operation.
摘要翻译： 一种具有限定多个静止阀通道的固定阀构件（19）的类型的双速转子马达，每个静止阀通道包括用于与可移动阀构件（43）进行换向流体连通的上游通道部分，以及下游通道部分 与摆线齿轮组的容积室（33）连续流体连通。 在一些固定阀通道（113）中，上游（115）和下游（117）通道部分被阻止直接流体连通。 控制阀阀芯（89）具有允许上游和下游通道部分之间不受限制的流体连通的第一位置（图8），用于正常的低速操作。 控制阀阀芯具有阻止上游侧（115）和下游通道部分（117）之间的连通的第二位置（图9），并将所有下游部分连接在一起，与流体积聚区域（91）连通，使得 来自这些体积室的流体再循环，以提供高速操作模式。
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