公开(公告)号：US5784949A

公开(公告)日：1998-07-28

申请号：US882135

申请日：1997-06-25

申请人： Jim D. Ryken ,  Jeffrey A. Baldus ,  David D. Dirks ,  Scott D. Meyer

发明人： Jim D. Ryken ,  Jeffrey A. Baldus ,  David D. Dirks ,  Scott D. Meyer

IPC分类号： F04B1/22 ,  F01B3/00 ,  F04B1/12 ,  F04B1/20 ,  F01B13/04

CPC分类号： F01B3/0032 ,  F04B1/126 ,  F04B1/2092 ,  Y10T74/18336

摘要： An improved apparatus for retaining slipper holddown pins radially in a hydraulic unit includes a cylinder block having a plurality of holes therein for respectively receiving a corresponding plurality of elongated slipper holddown pins, each having a maximum transverse width. The holes are adjacent to and communicate with a center bore of the cylinder block to form respective throats. The throats have a maximum width that is less than the maximum transverse width of the pins such that the pins cannot be radially displaced through the respective throats. Each hole has a side wall that extends more than 180.degree. around its central axis. The side wall defines the throat between the hole and the center bore. The shaft can be inserted into driving engagement with the center bore of the cylinder block. The slipper holddown pin has a maximum transverse width greater than the maximum width of the throat. Thus, the pin is radially constrained in the hole without applying external forces and cannot move radially outwardly through the throat. The bore of the cylinder block and the holes for receiving the pins can be simultaneously formed with a single broaching bar.

摘要翻译： 用于在液压单元中径向保持拖鞋压紧销的改进的装置包括其中具有多个孔的气缸体，用于分别接收相应的多个细长拖鞋压紧销，每个具有最大横向宽度。 孔与气缸体的中心孔相邻并连通，形成相应的喉部。 喉部具有小于销的最大横向宽度的最大宽度，使得销不能通过相应的喉部径向移位。 每个孔具有围绕其中心轴线延伸超过180度的侧壁。 侧壁限定孔和中心孔之间的喉部。 轴可以插入与气缸体的中心孔的驱动接合。 拖鞋压紧销的最大横向宽度大于喉咙的最大宽度。 因此，销径向地限制在孔中而不施加外力，并且不能径向向外移动穿过喉部。 气缸体的孔和用于接收销的孔可以与单个拉杆同时形成。

公开(公告)号：US06203283B1

公开(公告)日：2001-03-20

申请号：US09394604

申请日：1999-09-13

申请人： John P. Fleming ,  Scott D. Meyer ,  Dave D. Dirks

发明人： John P. Fleming ,  Scott D. Meyer ,  Dave D. Dirks

IPC分类号： F04B126

CPC分类号： F04B1/328 ,  F01B3/102

摘要： A device for varying the displacement of a variable displacement bent axis unit includes a one-piece yoke having a bucket portion adapted to carry a cylinder block kit of the bent axis unit, a trunnion bearing portion for swing control on one side of the bucket portion, and a trunnion portion for fluid porting on the other side of the bucket portion. The bucket portion has a bottom wall, a continuous side wall, and an open top. Inside the yoke is a pair of fluid passages intersecting the interior of the bucket portion and extending separately and entirely within the bottom wall and the side wall before opening onto the trunnion portion for fluid porting.

摘要翻译： 用于改变可变容量弯曲轴单元的位移的装置包括具有适于承载弯曲轴单元的气缸体组件的铲斗部分的单件式轭架，用于在铲斗部分的一侧上摆动控制的耳轴支承部分 以及用于在铲斗部分的另一侧上流体移动的耳轴部分。 铲斗部分具有底壁，连续侧壁和敞开的顶部。 轭架内部是一对与铲斗部分内部相交的流体通道，并且在打开到耳轴部分之前分开且完全地在底壁和侧壁内延伸以进行流体移动。

公开(公告)号：US5207144A

公开(公告)日：1993-05-04

申请号：US693160

申请日：1991-04-29

申请人： Ronald J. Sporrer ,  Scott D. Meyer

发明人： Ronald J. Sporrer ,  Scott D. Meyer

IPC分类号： F04B1/20 ,  F01B3/10

CPC分类号： F01B3/106

摘要： A swashplate leveling device has a reciprocative leveling follower movable along a fixed axial pin. The cam is biased into engagement with a swashplate of an axial piston variable displacement hydraulic unit to position the swashplate in a zero displacement orientation when there is no control input to the hydraulic unit. The leveling device has a pair of contact points, one positioned on each side of the swashplate tilt axis in a manner that both contact points engage the swashplate when it is leveled to its zero displacement orientation.

摘要翻译： 斜盘调平装置具有可沿着固定的轴向销移动的往复平整随动件。 当没有液压单元的控制输入时，凸轮偏置成与轴向活塞可变排量液压单元的斜盘接合，以将斜盘定位在零位移方向。 调平装置具有一对接触点，一个位于斜盘倾斜轴的每一侧上的接触点，使得两个接触点在平移到其零位移方向时​​与两个接触点接合。