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公开(公告)号：US09291133B2
公开(公告)日：2016-03-22
申请号：US13330736
申请日：2011-12-20
CPC分类号： F02M39/02 , F04B1/0413 , F04B1/0448 , F04B9/042 , F04B53/006 , Y10T29/49236
摘要： A shaft arrangement for an axial piston pump assembly to couple to a rotatable member such as a gear therewith. A shaft extends at least partially through a housing chamber of the pump about a longitudinal axis. Reciprocating pistons are disposed within the chamber radially about the shaft. A cam unit is fitted over the shaft and provides an angled camming surface to engage the pistons. Bearing assemblies are fitted over the cam unit. An adapter can be fitted over the proximal end of the cam unit. The adapter has a distal surface which may abut the bearing assembly and be axially spaced from the cam unit, and an outer radial surface to engage the rotatable member. A clamping device provides a desired clamp load path between the rotatable member, the adapter, the cam unit, the bearing assemblies and the shaft.
摘要翻译： 一种用于轴向活塞泵组件的轴装置，用于联接到诸如齿轮的可旋转构件。 轴至少部分地延伸穿过泵的容纳室围绕纵向轴线。 往复运动的活塞在轴的径向周围设置在室内。 凸轮单元安装在轴上并提供倾斜的凸轮表面以接合活塞。 轴承组件安装在凸轮单元上。 适配器可以安装在凸轮单元的近端上方。 适配器具有可以抵靠轴承组件并且与凸轮单元轴向间隔开的远侧表面和与可旋转构件接合的外径向表面。 夹紧装置在可旋转构件，适配器，凸轮单元，轴承组件和轴之间提供期望的夹紧负载路径。
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公开(公告)号：US20130152779A1
公开(公告)日：2013-06-20
申请号：US13330736
申请日：2011-12-20
CPC分类号： F02M39/02 , F04B1/0413 , F04B1/0448 , F04B9/042 , F04B53/006 , Y10T29/49236
摘要： A shaft arrangement for an axial piston pump assembly to couple to a rotatable member such as a gear therewith. A shaft extends at least partially through a housing chamber of the pump about a longitudinal axis. Reciprocating pistons are disposed within the chamber radially about the shaft. A cam unit is fitted over the shaft and provides an angled camming surface to engage the pistons. Bearing assemblies are fitted over the cam unit. An adapter can be fitted over the proximal end of the cam unit. The adapter has a distal surface which may abut the bearing assembly and be axially spaced from the cam unit, and an outer radial surface to engage the rotatable member. A clamping device provides a desired clamp load path between the rotatable member, the adapter, the cam unit, the bearing assemblies and the shaft.
摘要翻译： 一种用于轴向活塞泵组件的轴装置，用于联接到诸如齿轮的可旋转构件。 轴至少部分地延伸穿过泵的容纳室围绕纵向轴线。 往复运动的活塞在轴的径向周围设置在室内。 凸轮单元安装在轴上并提供倾斜的凸轮表面以接合活塞。 轴承组件安装在凸轮单元上。 适配器可以安装在凸轮单元的近端上方。 适配器具有可以抵靠轴承组件并且与凸轮单元轴向间隔开的远侧表面和与可旋转构件接合的外径向表面。 夹紧装置在可旋转构件，适配器，凸轮单元，轴承组件和轴之间提供期望的夹紧负载路径。
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3.发明授权Pump and hydraulic system with low pressure priming and over pressurization avoidance features 有权泵和液压系统具有低压起动和过加压避免功能公开(公告)号：US06901911B2
公开(公告)日：2005-06-07
申请号：US10212136
申请日：2002-07-31
申请人： Michael D. Anderson , Dennis H. Gibson , Michael E. Pickell , Jerry A. Wear , Matthew D. Friede
发明人： Michael D. Anderson , Dennis H. Gibson , Michael E. Pickell , Jerry A. Wear , Matthew D. Friede
CPC分类号： F04B1/28 , F04B49/225
摘要： A hydraulic system, such as a fuel injection system, includes a fixed displacement pump with at least one pump piston. A sleeve surrounds each pump piston and provides the method by which fluid displaced by the pumping stroke of the pump piston is directed either to a high pressure area in the pump or a low pressure area. The sleeves are a portion of an electro-hydraulic controller that includes a mechanical bias to bias the pump to a high output position when a pressure differential between the outlet area and the inlet area is relatively low, such as at cold start up. This aspect facilitates priming of the system. In addition, the controller includes a biasing hydraulic surface in opposition to the mechanical biaser that serves to bias the pump to its low output position when the pressure differential between the outlet area and the inlet area is relatively high. This aspect prevents over pressurization in the event that electric current to the controller is disrupted.
摘要翻译： 诸如燃料喷射系统的液压系统包括具有至少一个泵活塞的固定排量泵。 套管围绕每个泵活塞，并提供了通过泵活塞的泵送冲程移位的流体被引导到泵或低压区域中的高压区域的方法。 袖子是电液控制器的一部分，其包括当出口区域和入口区域之间的压力差相对较低（例如在冷启动时）的泵将其偏压到高输出位置的机械偏置。 这方面促进了系统的启动。 此外，控制器包括与机械偏压器相对的偏压液压表面，当偏压出口区域和入口区域之间的压差相对较高时，该液压表面用于将泵偏压到其低输出位置。 在这种情况下，在控制器的电流中断的情况下，可防止过度加压。
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4.发明授权Hydraulically-actuated system having a variable delivery fixed displacement pump 有权具有可变输送固定排量泵的液压致动系统公开(公告)号：US06216670B1
公开(公告)日：2001-04-17
申请号：US09414798
申请日：1999-10-08
申请人： Michael D. Anderson , Dennis H. Gibson , Michael E. Pickell , Jerry A. Wear , Matthew D. Friede
发明人： Michael D. Anderson , Dennis H. Gibson , Michael E. Pickell , Jerry A. Wear , Matthew D. Friede
IPC分类号： F02M3704
CPC分类号： F02D41/3845 , F02M59/08 , F02M59/243 , F02M59/246 , F02M63/0225 , F04B49/08
摘要： A hydraulically-actuated system includes a fixed displacement pump with at least one piston that reciprocates in a pump housing that defines a high pressure area and a low pressure area. A control valve is attached to the pump housing and moveable between a first position in which the piston displaces fluid in a first proportion between the high pressure area and the low pressure area, and a second position in which the piston displaces fluid in a second proportion between the high pressure area and the low pressure area. At least one hydraulically-actuated device is connected to the high pressure area of the pump. A source of low pressure fluid is connected to the low pressure area of the pump. An electronic control module is in communication with and capable of controlling the position of the control valve.
摘要翻译： 液压致动系统包括具有至少一个活塞的固定排量泵，其在限定高压区域和低压区域的泵壳体中往复运动。 控制阀安装在泵壳体上，并可在第一位置和第二位置之间移动，在第一位置，活塞以高压区域和低压区域之间的第一比例排出流体，在第二位置，活塞以第二比例排出流体 在高压区域和低压区域之间。 至少一个液压致动装置连接到泵的高压区域。 低压流体源连接到泵的低压区域。 电子控制模块与控制阀的位置通信并且能够控制控制阀的位置。
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