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1. 发明申请

WO2008064303A2 AIR DRIVEN HYDRAULIC PUMP 审中-公开
标题翻译：空气驱动液压泵
公开(公告)号：WO2008064303A2
公开(公告)日：2008-05-29
申请号：PCT/US2007085372
申请日：2007-11-21
申请人： ACTUANT CORP , KNUTH BRUCE E , CHAN KAY LAP GILBERT , DEN RIDDER THEO H H , STANFORD FRANTZ D , PILI ROGER R
发明人： KNUTH BRUCE E , CHAN KAY LAP GILBERT , DEN RIDDER THEO H H , STANFORD FRANTZ D , PILI ROGER R
IPC分类号： F01B13/00
CPC分类号： F04B23/06 , F04B17/00
摘要： A rotary air motor driven hydraulic pump has separate pressure and return actuators and first and second stage eccentric driven pistons 180 degrees out of phase and driven by the motor through a gear reduction unit. The pressure and return actuators are on/off/proportional valves and the pump has two pressure relief valves with one adjustable from outside of the pump for a user to set a pressure limit of the pump. Above a certain output pressure limit, a bypass valve shunts flow in excess of that needed to precharge the second stage compression chamber from the first stage piston to an elastic reservoir from which the hydraulic fluid pumped by the pump is drawn. To make the pump stall at a certain output pressure, a pressure limiting valve can be used that cuts off the air supply to the pump at the desired output pressure.
摘要翻译：旋转气动马达驱动的液压泵具有单独的压力和返回致动器以及180度异相的第一和第二级偏心驱动活塞，并且由马达通过齿轮减速单元驱动。压力和返回致动器是开/关/比例阀，泵具有两个压力释放阀，一个可从泵外部调节的泄压阀，用于设定泵的压力极限。在一定的输出压力极限之上，旁路阀将流过超过将第二级压缩室预先从第一级活塞预充气到由泵抽出的液压流体的弹性容器所需的流量。为了使泵在一定的输出压力下停止，可以使用限压阀，以期望的输出压力切断泵的空气供应。

2. 发明申请

WO0179697A3 VARIABLE SPEED HYDRAULIC PUMP 审中-公开
标题翻译：变速液压泵
公开(公告)号：WO0179697A3
公开(公告)日：2002-03-14
申请号：PCT/US0112221
申请日：2001-04-13
申请人： ACTUANT CORP , BISHOP MICHAEL B , PILI ROGER R , KNUTH BRUCE E , STEBER GEORGE R , PIEDL MARTIN , BARANI MOE K , FLANARY RON , MENTINK LAURENTIUS A G
发明人： BISHOP MICHAEL B , PILI ROGER R , KNUTH BRUCE E , STEBER GEORGE R , PIEDL MARTIN , BARANI MOE K , FLANARY RON , MENTINK LAURENTIUS A G
IPC分类号： F04B1/04 , F04B23/10 , F04B49/20 , F04C11/00 , F04C15/04
CPC分类号： F04B1/0426 , F04B23/103 , F04B49/20 , F04B2201/1203 , F04B2203/0201 , F04B2203/0207 , F04B2203/0208 , F04B2203/0209
摘要： The invention provides a variable speed hydraulic pump designed to operate at a maximum horsepower throughout its pressure range by adjusting motor speed according to motor load parameters. In particular, the variable speed hydraulic pump includes a hydraulic pump unit coupled to a variable speed electric motor by a drive unit and to a hydraulic fluid tank for pressurizing and pumping hydraulic fluid when operated by the motor. A motor controller is electrically connected to the motor to supply drive signals to the motor based on electrical characteristics of the drive signals which are dependent on the load exerted on the motor. Suction from the load is provided by both the main pump and a bidirectional supercharging pump by reversing the direction of the motor and shifting a 4/3 valve to connect the main pump inlet to the load and its outlet to tank. In addition, the controller reduces the motor speed at the maximum rated pressure to just maintain the pressure, to reduce the amount of fluid pumped through the maximum pressure relief valve.
摘要翻译：本发明提供了一种变速液压泵，其设计为通过根据电动机负载参数调整电动机速度在其整个压力范围内以最大功率运行。特别地，变速液压泵包括通过驱动单元连接到变速电动机的液压泵单元和用于在由电动机操作时对液压流体进行加压和泵送的液压油箱。电动机控制器电连接到电动机，以基于驱动信号的电特性向电动机提供驱动信号，驱动信号取决于施加在电动机上的负载。从主泵和双向增压泵通过反转电机的方向和移动4/3阀将主泵入口连接到负载及其出口到罐而由负载提供吸力。此外，控制器将电机速度降低到最大额定压力，以保持压力，以减少通过最大压力释放阀泵送的液体量。

3. 发明申请

WO2008048927A2 ZERO-LEAK VARIABLE RATE HIGH PRESSURE METERING VALVE 审中-公开
标题翻译：零泄漏可变速率高压计量阀
公开(公告)号：WO2008048927A2
公开(公告)日：2008-04-24
申请号：PCT/US2007081389
申请日：2007-10-15
申请人： ACTUANT CORP , PILI ROGER R
发明人： PILI ROGER R
IPC分类号： F16K15/02
CPC分类号： F16K15/063 , F16K15/18
摘要： A high pressure metering valve has a valve element with a closing portion, a metering portion and a rapid return portion. The closing portion seats against a corner seat at the end of a valve bore in which the metering portion has a close sliding fit. When the element is unseated, a flow rate can be metered depending on the overlapping length of the metering portion in the valve bore. At the opposite end of the metering portion, the rapid return portion is undercut to be of smaller area than the metering portion to provide a full open state for rapid fluid return.
摘要翻译：高压计量阀具有带有关闭部分，计量部分和快速返回部分的阀元件。封闭部分抵靠在其中计量部分具有紧密滑动配合的阀孔的端部处的角座上。当元件脱离时，可以根据阀孔中计量部分的重叠长度来计量流量。在计量部分的相对端处，快速返回部分被下切以具有比计量部分更小的面积，以提供快速流体返回的完全打开状态。

4. 发明申请

WO2004109122A3 HIGH PRESSURE METERING VALVE 审中-公开
标题翻译：高压计量阀
公开(公告)号：WO2004109122A3
公开(公告)日：2005-05-12
申请号：PCT/US2004017082
申请日：2004-06-02
申请人： ACTUANT CORP , PILI ROGER R , HOHENSEE PAUL , MINIATT CHARLES
发明人： PILI ROGER R , HOHENSEE PAUL , MINIATT CHARLES
IPC分类号： F15B13/04 , F16K11/074
CPC分类号： F15B13/0406 , F16K11/0743 , Y10T137/86638 , Y10T137/86743
摘要： A bi-directional metering valve assembly includes a valve block (46) defining a first port (100) that receives hydraulic fluid from a source, and a second port (98) that directs hydraulic fluid to a load. A rotatable valve member (74) defines first (116) and second (114) apertures in an axial face, communicated by a channel (118) that may be placed in selective communication with the first (100) and second (98) ports, respectively, to direct hydraulic fluid from the source to the load. At least one metering sealing assembly defines a flange (132) that is sized to completely overlap and seal the correxponding aperture (114, 116). The valve member is operable to control the direction of fluid flow, and make fine adjustments to the hydraulic fluid flow rate.
摘要翻译：双向计量阀组件包括限定从源接收液压流体的第一端口（100）的阀块（46）和将液压流体引导到负载的第二端口（98）。可旋转的阀构件（74）限定轴向面中的第一（116）和第二（114）孔，其通过可与第一（100）和第二（98）端口选择性连通的通道（118）连通，分别将液压油从源引导到负载。至少一个计量密封组件限定了凸缘（132），其被设计成完全重叠并密封相应的孔（114,116）。阀构件可操作以控制流体流动的方向，并且对液压流体流速进行微调。

5. 发明公开

EP1639260A4 HIGH PRESSURE METERING VALVE 审中-公开
标题翻译： HOCHDRUCKDOSIERVENTIL
公开(公告)号：EP1639260A4
公开(公告)日：2008-05-14
申请号：EP04753824
申请日：2004-06-02
申请人： ACTUANT CORP
发明人： PILI ROGER R , HOHENSEE PAUL , MINIATT CHARLES
IPC分类号： F16K11/074 , F15B13/04
CPC分类号： F15B13/0406 , F16K11/0743 , Y10T137/86638 , Y10T137/86743
摘要： A bi-directional metering valve assembly is provided to selectively direct hydraulic fluid under high pressure to a load. The assembly includes a valve block defining a first port that receives hydraulic fluid from a source, and a second port that directs hydraulic fluid toward a load. A rotatable valve member defines first and second apertures in an axial face that may be placed in selective communication with the first and second ports, respectively, to direct hydraulic fluid from the source to the load. At least one metering sealing assembly provides an interface between the valve block and the valve member. The metering sealing assembly includes a gasket that surrounds one of the first and second ports and defines a flange that is sized to completely overlap and seal the corresponding aperture. The valve member is operable to control the direction of fluid flow, and make fine adjustments to the hydraulic fluid flow rate.
摘要翻译：提供双向计量阀组件以选择性地将高压下的液压流体引导至负载。该组件包括限定从源接收液压流体的第一端口和将液压流体引向负载的第二端口的阀块。可旋转阀构件在轴向面中限定第一孔和第二孔，该第一孔和第二孔可以分别与第一端口和第二端口选择性地连通以将液压流体从源引导至负载。至少一个计量密封组件在阀块和阀构件之间提供界面。计量密封组件包括围绕第一端口和第二端口中的一个的垫圈，并且限定尺寸为完全重叠并密封相应孔口的凸缘。阀构件可操作以控制流体流动的方向，并且对液压流体流量进行微调。

6. 发明专利

DE10196072T1 未知
公开(公告)号：DE10196072T1
公开(公告)日：2003-07-03
申请号：DE10196072
申请日：2001-04-13
申请人： ACTUANT CORP
发明人： BISHOP MICHAEL B , PILI ROGER R , KNUTH BRUCE E , STEBER GEORGE R , PIEDL MARTIN , BARANI MOE K , FLANARY RON , MENTINK LAURENTIUS A G
IPC分类号： F04B1/04 , F04B23/10 , F04B49/20
摘要： The invention provides a variable speed hydraulic pump designed to operate at a maximum horsepower throughout its pressure range by adjusting motor speed according to motor load parameters. In particular, the variable speed hydraulic pump includes a hydraulic pump unit coupled to a variable speed electric motor by a drive unit and to a hydraulic fluid tank for pressurizing and pumping hydraulic fluid when operated by the motor. A motor controller is electrically connected to the motor to supply drive signals to the motor based on electrical characteristics of the drive signals which are dependent on the load exerted on the motor. Suction from the load is provided by both the main pump and a bidirectional supercharging pump by reversing the direction of the motor and shifting a 4/3 valve to connect the main pump inlet to the load and its outlet to tank. In addition, the controller reduces the motor speed at the maximum rated pressure to just maintain the pressure, to reduce the amount of fluid pumped through the maximum pressure relief valve.

7. 发明专利

DE112007002431T5 未知
公开(公告)号：DE112007002431T5
公开(公告)日：2009-09-24
申请号：DE112007002431
申请日：2007-10-15
申请人： ACTUANT CORP
发明人： PILI ROGER R
IPC分类号： F16K15/02
摘要： A high pressure metering valve has a valve element with a closing portion, a metering portion and a rapid return portion. The closing portion seats against a corner seat at the end of a valve bore in which the metering portion has a close sliding fit. When the element is unseated, a flow rate can be metered depending on the overlapping length of the metering portion in the valve bore. At the opposite end of the metering portion, the rapid return portion is undercut to be of smaller area than the metering portion to provide a full open state for rapid fluid return.

8. 发明专利

CA2405739A1 VARIABLE SPEED HYDRAULIC PUMP 未知
公开(公告)号：CA2405739A1
公开(公告)日：2001-10-25
申请号：CA2405739
申请日：2001-04-13
申请人： ACTUANT CORP
发明人： BARANI MOE K , PIEDL MARTIN , STEBER GEORGE R , BISHOP MICHAEL B , KNUTH BRUCE E , PILI ROGER R , MENTINK LAURENTIUS A G , FLANARY RON
IPC分类号： F04B1/04 , F04B23/10 , F04B49/20 , F04C11/00 , F04C15/04
摘要： The invention provides a variable speed hydraulic pump designed to operate a t a maximum horsepower throughout its pressure range by adjusting motor speed according to motor load parameters. In particular, the variable speed hydraulic pump includes a hydraulic pump unit coupled to a variable speed electric motor by a drive unit and to a hydraulic fluid tank for pressurizin g and pumping hydraulic fluid when operated by the motor. A motor controller i s electrically connected to the motor to supply drive signals to the motor bas ed on electrical characteristics of the drive signals which are dependent on th e load exerted on the motor. Suction from the load is provided by both the mai n pump and a bidirectional supercharging pump by reversing the direction of th e motor and shifting a 4/3 valve to connect the main pump inlet to the load an d its outlet to tank. In addition, the controller reduces the motor speed at t he maximum rated pressure to just maintain the pressure, to reduce the amount o f fluid pumped through the maximum pressure relief valve.

9. 发明专利

DE112007002818T5 未知
公开(公告)号：DE112007002818T5
公开(公告)日：2010-05-12
申请号：DE112007002818
申请日：2007-11-21
申请人： ACTUANT CORP
发明人： KNUTH BRUCE E , CHAN KAY LAP GILBERT , DEN RIDDER THEO H H , STANFORD FRANTZ D , PILI ROGER R
IPC分类号： F04B9/125
摘要： A rotary air motor driven hydraulic pump has separate pressure and return actuators and first and second stage eccentric driven pistons 180 degrees out of phase and driven by the motor through a gear reduction unit. The pressure and return actuators are on/off/proportional valves and the pump has two pressure relief valves with one adjustable from outside of the pump for a user to set a pressure limit of the pump. Above a certain output pressure limit, a bypass valve shunts flow in excess of that needed to precharge the second stage compression chamber from the first stage piston to an elastic reservoir from which the hydraulic fluid pumped by the pump is drawn. To make the pump stall at a certain output pressure, a pressure limiting valve can be used that cuts off the air supply to the pump at the desired output pressure.

10. 发明专利

HK1104076A1 CABLE TENSIONING SYSTEM AND METHOD OF OPERATION 未知
公开(公告)号：HK1104076A1
公开(公告)日：2008-01-04
申请号：HK07108234
申请日：2007-07-27
申请人： ACTUANT CORP
发明人： FOEGE CARL A , ARTERS EDWARD T , PILI ROGER R
IPC分类号： E04G20090101 , E04G21/12
摘要： A concrete reinforcement cable tensioning system is variably adjustable to apply different crimping for different sized cables. The system includes a concrete reinforcement cable tensioner having a first actuator for tensioning a cable extending through a concrete structure and a second actuator for crimping a grommet onto the cable. A first hydraulic line is in fluid communication with the first actuator and selectively provides pressurized hydraulic fluid to the first actuator. A second hydraulic line is in fluid communication with the second actuator and selectively provides pressurized hydraulic fluid to the second actuator. A normally closed pilot operated sequencing valve is disposed in the first hydraulic line, and has a pilot line in fluid communication with the second hydraulic line for sensing a pressure in the second hydraulic line, wherein the sequencing valve opens to exhaust hydraulic fluid from the first actuator upon the pressure in the second hydraulic line reaching a predetermined pressure. The predetermined pressure is variably changeable to accommodate different pressures required to crimp grommets on different sizes of cable.

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