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1. 发明授权

US06199663B1 Lubrication system 有权
标题翻译：润滑系统
公开(公告)号：US06199663B1
公开(公告)日：2001-03-13
申请号：US09296993
申请日：1999-04-22
申请人： Subrata Roy , David E. Susag
发明人： Subrata Roy , David E. Susag
IPC分类号： F16N730
CPC分类号： F16N7/38 , Y10T74/2189
摘要： A lubrication system includes a fluid reservoir, a housing having an interior with an inlet and an outlet fluidly coupled to the reservoir, a fluid pump configured to pump fluid from the reservoir to the interior of the housing through the inlet and a fluid conduit between the fluid pump and the inlet of the axle housing. The conduit has an inflow portion, an outflow portion, a throat and an aspiration passage. The inflow portion has a first cross sectional area. The outflow portion has a second cross sectional area. The throat extends between the inflow and outflow portions, has an exit proximate the outflow portion and has a third cross sectional area less than the first and second cross sectional areas. The aspiration passage extends from a location proximate the exit of the throat to a source of air. Fluid pumped through the first and second internal portions of the fluid conduit by the fluid pump draws air into the outflow portion through the aspiration passage to aerate the fluid. The aerated fluid expels fluid from the interior of the housing through the outlet and back to the fluid reservoir. A method for lubricating and cooling an axle within a housing includes the steps of pumping fluid from a reservoir through a first passage having a first cross sectional area, through a second adjacent passage having a second smaller cross sectional area and through a third passage having a third cross sectional area greater than the second cross sectional area to the interior of the housing. The method also includes the step of providing a source of air to the fluid after the fluid exits the second passage. Air is drawn into the fluid to aerate the fluid. The aerated fluid expels fluid from the interior of the housing to the fluid reservoir.
摘要翻译：润滑系统包括流体储存器，具有内部的壳体，其具有入口和流体地联接到储存器的出口;流体泵，构造成通过入口将流体从储存器泵送到壳体的内部，并且流体导管流体泵和轴壳的入口。导管具有流入部分，流出部分，喉部和抽吸通道。流入部分具有第一横截面积。流出部分具有第二横截面积。喉部在流入和流出部分之间延伸，具有靠近流出部分的出口，并且具有小于第一和第二横截面积的第三横截面面积。抽吸通道从靠近喉部出口的位置延伸到空气源。通过流体泵泵送通过流体导管的第一和第二内部部分的流体通过抽吸通道将空气吸入流出部分以使流体充气。充气流体从壳体的内部通过出口排出流体并返回到流体储存器。用于润滑和冷却壳体内的轴的方法包括以下步骤：从存储器抽取流体通过具有第一横截面积的第一通道，通过具有第二较小横截面积的第二相邻通道，并穿过第三通道，第三通道具有第三横截面积大于到壳体内部的第二横截面积。该方法还包括在流体离开第二通道之后向流体提供空气源的步骤。空气被吸入流体以使流体通风。充气流体将流体从壳体的内部排出到流体储存器。

2. 发明授权

US5918558A Dual-pump, flow-isolated hydraulic circuit for an agricultural tractor 失效
标题翻译：用于农用拖拉机的双泵，流动隔离液压回路
公开(公告)号：US5918558A
公开(公告)日：1999-07-06
申请号：US980827
申请日：1997-12-01
申请人： David E. Susag
发明人： David E. Susag
IPC分类号： F15B11/16 , F15B11/17 , F16D31/02 , F15B11/00
CPC分类号： F15B11/17 , F15B11/162 , F15B2211/20538 , F15B2211/20553 , F15B2211/20576 , F15B2211/30535 , F15B2211/3111 , F15B2211/3138 , F15B2211/325 , F15B2211/6054 , F15B2211/7128 , F15B2211/7142
摘要： A hydraulic circuit has first and second pumps coupled to first and second directional valves, each controlling work mechanisms such as a hydraulic cylinder and a hydraulic motor. The directional valves are in a valve assembly having a fluid passage through it. The passage includes first and second input ports and a passage closure intermediate the ports to prevent cross-feeding of the pumps. The first valve is connected to the passage between the first port and the closure and the first pump flows fluid to the first port. Similarly, the second valve is connected to the passage between the second port and the closure and the second pump flows fluid to the second port. In a more-specific embodiment, the second pump is a variable displacement pump and the first pump is a fixed displacement pump also connected to a power steering system through a priority valve. Thus, the first pump flows fluid to the power steering system as well as to the first port.
摘要翻译：液压回路具有联接到第一和第二换向阀的第一和第二泵，每个控制工作机构例如液压缸和液压马达。方向阀位于具有通过其的流体通道的阀组件中。该通道包括第一和第二输入端口以及在端口之间的通道封闭件，以防止泵的交叉进给。第一阀连接到第一端口和封闭件之间的通道，第一泵将流体流向第一端口。类似地，第二阀连接到第二端口和封闭件之间的通道，而第二泵将流体流向第二端口。在更具体的实施例中，第二泵是可变排量泵，并且第一泵是也通过优先阀连接到动力转向系统的固定排量泵。因此，第一泵将流体流向动力转向系统以及第一端口。

3. 发明授权

US06571190B2 Automatic calibration of remote hydraulic valve flow 有权
公开(公告)号：US06571190B2
公开(公告)日：2003-05-27
申请号：US09845901
申请日：2001-04-30
申请人： Yanming Hou , Guy T. Stoever , David E. Susag
发明人： Yanming Hou , Guy T. Stoever , David E. Susag
IPC分类号： G01L2500
CPC分类号： G01L25/00
摘要： A computer calibration method and apparatus for calibrating one or more auxiliary hydraulic valves on a work vehicle includes the steps of selecting a first auxiliary hydraulic valve, applying a valve opening signal to that valve, measuring a pressure in a flow restricted signal circuit coupled to the valve, comparing the first pressure with a predetermined pressure to see if the valve is cracked open and if the valve is not cracked open, incrementing the signal to a second level and repeating the foregoing steps until the first valve cracks open. The final step is saving a value indicative of the signal at which the valve just cracked open.

4. 发明授权

US06401870B2 Lubrication system 有权
标题翻译：润滑系统
公开(公告)号：US06401870B2
公开(公告)日：2002-06-11
申请号：US09772241
申请日：2001-01-29
申请人： Subrata Roy , David E. Susag
发明人： Subrata Roy , David E. Susag
IPC分类号： F16N730
CPC分类号： F16N7/38 , Y10T74/2189
摘要： In one exemplary embodiment, the lubrication system includes a valve between the fluid conduit and the fluid pump, a sensor configured to generate a signal indicative of a viscosity of the fluid and an actuator coupled to the valve, wherein the actuator opens and closes the valve in response to the signal from the sensor. A method for lubricating and cooling an axle within a housing includes the steps of pumping fluid from a reservoir through a first passage having a first cross sectional area, through a second adjacent passage having a second smaller cross sectional area and through a third passage having a third cross sectional area greater than the second cross sectional area to the interior of the housing. The method also includes the step of providing a source of air to the fluid after the fluid exits the second passage. Air is drawn into the fluid to aerate the fluid. The aerated fluid expels fluid from the interior of the housing to the fluid reservoir. In one exemplary embodiment, the method additionally includes the steps of generating a signal indicative of a viscosity of the fluid and controlling flow of fluid through the first, second and third passages based upon the signal.
摘要翻译：在一个示例性实施例中，润滑系统包括在流体导管和流体泵之间的阀，被配置为产生指示流体粘度的信号和耦合到阀的致动器的传感器，其中致动器打开和关闭阀一种用于润滑和冷却壳体内的轴的方法包括以下步骤：将来自储存器的流体通过具有第一横截面积的第一通道泵送通过具有第二较小十字的第二相邻通道并且穿过具有大于第二横截面积的第三横截面积的第三通道到壳体的内部。该方法还包括在流体离开第二通道之后向流体提供空气源的步骤。空气被吸入流体以使流体通风。充气流体将流体从壳体的内部排出到流体储存器。在一个示例性实施例中，该方法另外包括以下步骤：基于该信号，产生指示流体粘度的信号并控制通过第一，第二和第三通道的流体流动。

5. 发明授权

US06223841B1 Remote fluid power supply system for a work vehicle 有权
标题翻译：用于工作车辆的远程流体供电系统
公开(公告)号：US06223841B1
公开(公告)日：2001-05-01
申请号：US09239625
申请日：1999-01-29
申请人： David E. Susag , Thomas G. Lykken
发明人： David E. Susag , Thomas G. Lykken
IPC分类号： B60K1728
CPC分类号： E02F9/0875 , B60K25/00 , B62D53/026 , E02F9/00 , E02F9/0883
摘要： A work vehicle having a front end, a rear end, a longitudinal length and a transverse width which includes a remote fluid power supply system, the remote fluid power supply system includes a fluid pump, a fluid reservoir, a first valve fluidly connected to the pump and the reservoir, and a second valve fluidly connected to the pump and the reservoir. The first valve is located on a first side of a transverse center line of a work vehicle at one of the front and rear ends of the work vehicle. The second valve is located on a second opposite side of the transverse center line at said one of the front and rear ends of the work vehicle. In one embodiment, the work vehicle includes a three-point hitch having a pair of transversely spaced side links and an upper hitch link extending from the transverse center line, wherein the first and second valves are located on first and second opposite sides of the upper hitch link. In another embodiment, the work vehicle includes a power take-off shaft extending from the transverse center line, wherein the first and second valves are located on first and second opposite sides of the power take-off shaft at the end of the work vehicle. In at least one of the embodiments, both the first and second valves are fluidly connected to the pump by a single fluid conduit and are fluidly connected to the fluid reservoir by a single fluid conduit extending across the transverse center line of the work vehicle.
摘要翻译：一种具有前端，后端，纵向长度和横向宽度的工作车辆，其包括远程流体供电系统，所述远程流体供电系统包括流体泵，流体储存器，流体连接到所述流体泵泵和储存器，以及流体连接到泵和储存器的第二阀。第一阀位于工作车辆的前后两端的工作车辆的横向中心线的第一侧。所述第二阀位于所述工作车辆的所述前端和后端之一的所述横向中心线的第二相对侧。在一个实施例中，工作车辆包括具有一对横向间隔开的侧连杆和从横向中心线延伸的上连接杆的三点牵引，其中第一和第二阀位于上部的第一和第二相对侧挂钩链接。在另一实施例中，作业车辆包括从横向中心线延伸的动力输出轴，其中第一和第二阀位于作业车辆末端处的动力输出轴的第一和第二相对侧上。在至少一个实施例中，第一和第二阀都通过单个流体导管流体地连接到泵，并且通过横跨工作车辆的横向中心线延伸的单个流体导管流体连接到流体储存器。

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