公开(公告)号：US5265331A

公开(公告)日：1993-11-30

申请号：US822003

申请日：1992-01-16

申请人： William K. Engel ,  Guy C. Carlson, Jr. ,  Howard Savage ,  David P. Smith ,  Phillip J. Wenger

发明人： William K. Engel ,  Guy C. Carlson, Jr. ,  Howard Savage ,  David P. Smith ,  Phillip J. Wenger

IPC分类号： B23P15/10 ,  F03C1/06 ,  F04B1/12 ,  F04B53/14 ,  F16J1/00 ,  B23P15/00 ,  F01B31/00

CPC分类号： F04B1/124 ,  B23P15/10 ,  F05C2253/12 ,  Y10T29/49249 ,  Y10T29/49256

摘要： Hydraulic piston pumps and motors are used in various applications to power implements, steering, propel, and auxiliary systems. However, it is important to keep the piston weight and compressible fluid volume low in order to have a smaller more efficient pump. The subject piston is manufactured in a simple manner to achieve a reliable, light weight design. The piston has a cylindrical body having an outer surface. The piston is manufactured by forming a first bore having a large diameter in the body extending from the outer surface and terminating at an annular shoulder. A second bore is formed which extends from the annular shoulder to a predetermined depth. A tube is inserted through the bore and extends a predetermined distance into the second bore. A cap has a bore and is positioned on the body in abutment with at least a portion of the outer surface. The cap slidably receives the tube through the bore. The cap is brazed to the body and the tube is brazed to the cap and to the body to form an isolated annular cavity in the piston.

摘要翻译： 液压活塞泵和电机用于各种应用中，用于电动工具，转向，推进和辅助系统。 然而，重要的是将活塞重量和可压缩流体体积保持在较低水平，以便具有更小效率的泵。 主体活塞以简单的方式制造，以实现可靠，重量轻的设计。 活塞具有具有外表面的圆柱体。 活塞通过在主体中形成具有大直径的第一孔而从外表面延伸并终止于环形肩部。 形成从环形肩部延伸到预定深度的第二孔。 管穿过孔插入并延伸预定距离进入第二孔。 盖具有孔并且定位在与外表面的至少一部分邻接的主体上。 盖可滑动地接收通过孔的管。 盖被钎焊到主体上，并且管被钎焊到盖子和主体上，以在活塞中形成隔离的环形空腔。

公开(公告)号：US5515768A

公开(公告)日：1996-05-14

申请号：US396302

申请日：1995-02-28

申请人： Wayne E. Fritz ,  Thomas A. Watts ,  Phillip J. Wenger

发明人： Wayne E. Fritz ,  Thomas A. Watts ,  Phillip J. Wenger

IPC分类号： F01B3/00 ,  F04B1/12 ,  F16C19/50 ,  F01B13/04 ,  F01D1/26

CPC分类号： F16C19/502 ,  F01B3/0032 ,  F04B1/126 ,  F16C33/306

摘要： An axial piston hydraulic device includes a holddown device for maintaining the slippers swivably connected to pistons in sliding contacting with a cam surface of a swashplate. The holddown device also includes a nested wave spring disposed to resiliently urge a holddown sleeve away from a cylinder barrel for biasing a holddown plate engaging the slippers toward the cam surface.

摘要翻译： 一种轴向活塞液压装置包括一个压紧装置，用于将滑动件可旋转地连接到活塞上，与斜盘的凸轮表面滑动接触。 压紧装置还包括嵌套波形弹簧，其布置成弹性地推动压紧套筒远离气缸筒，用于将接合拖鞋的压板偏压到凸轮表面。