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公开(公告)号：US06863502B2
公开(公告)日：2005-03-08
申请号：US10257302
申请日：2001-04-13
申请人： Michael B. Bishop , Roger R. Pili , Bruce E. Knuth , Moe K. Barani , Ron Flanary , Laurentius A. G. Mentink , George R. Steber , Martin Piedl
发明人： Michael B. Bishop , Roger R. Pili , Bruce E. Knuth , Moe K. Barani , Ron Flanary , Laurentius A. G. Mentink , George R. Steber , Martin Piedl
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。
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公开(公告)号：US08496449B2
公开(公告)日：2013-07-30
申请号：US12515221
申请日：2007-11-21
申请人： Bruce E. Knuth , Kay Lap Gilbert Chan , Theo H. H. Den Ridder , Frantz D. Stanford , Roger R. Pili
发明人： Bruce E. Knuth , Kay Lap Gilbert Chan , Theo H. H. Den Ridder , Frantz D. Stanford , Roger R. Pili
IPC分类号： F04B35/00
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，一个可从泵的外部调节，用于使用者设定泵的压力极限。 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泵送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。
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公开(公告)号：US20100215521A1
公开(公告)日：2010-08-26
申请号：US12515221
申请日：2007-11-21
申请人： Bruce E. Knuth , Kay Lap Gilbert Chan , Theo H. H. Den Ridder , Frantz D. Stanford , Roger R. Pili
发明人： Bruce E. Knuth , Kay Lap Gilbert Chan , Theo H. H. Den Ridder , Frantz D. Stanford , Roger R. Pili
IPC分类号： 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，一个可从泵的外部调节，用于使用者设定泵的压力极限。 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泵送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。
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公开(公告)号：US20110303389A1
公开(公告)日：2011-12-15
申请号：US13153575
申请日：2011-06-06
申请人： Bruce E. Knuth
发明人： Bruce E. Knuth
IPC分类号： F28F13/12
CPC分类号： F28D1/06 , F15B1/26 , F15B21/042 , F28D1/024 , F28F1/42 , F28F3/02 , F28F2215/08
摘要： A fluid storage tank including heat extraction arrangements is provided. The fluid storage tank includes a passive and an active heat exchanger. A fan draws ambient air through both the active and passive heat exchangers to dissipate heat energy stored in the fluid passing through or stored within the tank.
摘要翻译： 提供了包括热提取装置的流体储存罐。 液体储罐包括被动和主动式热交换器。 风扇通过主动式和被动式热交换器吸入环境空气，以散发存储在通过或储存在罐内的流体中的热能。
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公开(公告)号：USD573608S1
公开(公告)日：2008-07-22
申请号：US29279593
申请日：2007-05-03
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公开(公告)号：US20100104456A1
公开(公告)日：2010-04-29
申请号：US12446611
申请日：2007-10-25
CPC分类号： F15B11/072 , F15B2211/20507 , F15B2211/20538 , F15B2211/216 , F15B2211/26 , F15B2211/6051 , F16K31/1221 , Y10T137/7796 , Y10T137/7804 , Y10T137/7922
摘要： A hydro-pneumatic system has an air powered motor driving a hydraulic pump with a pressure limiting valve that turns off air flow to the air motor when a hydraulic pressure output by the pump at a sense port of the valve reaches a certain limit. A valve element of the valve has spring, hydraulic and pneumatic sections, with an unbalanced area of the hydraulic section in a sealed pressure chamber of a cartridge that is part of the valve housing. The pneumatic section extends out one end of the cartridge to fill a bore between the air inlet and outlet ports when the pneumatic section is extended, and allow air to pass when it is retracted.
摘要翻译： 液压气动系统具有驱动液压泵的空气动力马达，该液压泵具有压力限制阀，当在阀的感应端口处的泵输出的液压压力达到一定限度时，该压力限制阀将空气流向空气马达。 阀的阀元件具有弹簧，液压和气动部分，在作为阀壳体的一部分的盒的密封压力室中具有液压部分的不平衡区域。 当气动部分延伸时，气动部分延伸出筒的一端以填充空气入口和出口之间的孔，并允许空气在其缩回时通过。
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7.发明申请GRADUAL RELEASE PRESSURIZING VALVE FOR FLUID STORAGE TANK BREATHER AND BREATHER INCLUDING SAME 审中-公开用于流体储存罐的呼吸器和包括其的呼吸器的缓释压力阀公开(公告)号：US20100065565A1
公开(公告)日：2010-03-18
申请号：US12562592
申请日：2009-09-18
申请人： Bruce E. Knuth , Robert E. Broman
发明人： Bruce E. Knuth , Robert E. Broman
摘要： A breather for a fluid storage tank, a storage tank incorporating same, and a method of releasing pressure in a fluid storage tank is provided. The present invention permits graduated release of pressure within the storage tank by allowing for varied flow rates of air out of the storage tank. In one embodiment, a valve assembly is provided that includes a valve member that has a graduated release feature that adjusts the size of a gap though the valve assembly formed between the valve member and a corresponding valve seat.
摘要翻译： 提供了一种用于流体储存器的呼吸器，其结合的储罐以及释放流体储存罐中的压力的方法。 本发明通过允许空气流出储罐的不同流速允许储存罐内的压力逐渐释放。 在一个实施例中，提供了一种阀组件，其包括具有渐变释放特征的阀构件，其通过形成在阀构件和相应的阀座之间的阀组件来调节间隙的尺寸。
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公开(公告)号：US20110006070A1
公开(公告)日：2011-01-13
申请号：US12833554
申请日：2010-07-09
IPC分类号： B65D90/00
CPC分类号： F15B1/26
摘要： A reservoir is provided. The reservoir defines an internal storage cavity. A plurality of system connections extend through a sidewall of the reservoir defining channels fluidly communicating the internal cavity of the reservoir with the exterior of the reservoir. A valve arrangement has a valve member that operably simultaneously closes off all of the plurality of system connections to prevent fluid flow from the internal cavity through the system connections when in a closed position. The valve arrangement, when the valve member is in an open position, permits fluid flow from the internal cavity and through all of the plurality of system connections.
摘要翻译： 提供一个水库。 储存器限定内部存储腔。 多个系统连接通过储存器的侧壁延伸，限定将储存器的内部空腔与储存器的外部流体连通的通道。 阀装置具有阀构件，其可操作地同时关闭所有多个系统连接，以在处于关闭位置时防止流体从内腔流过系统连接。 当阀构件处于打开位置时，阀装置允许流体从内腔流过并通过所有多个系统连接。
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公开(公告)号：US20100051121A1
公开(公告)日：2010-03-04
申请号：US12549473
申请日：2009-08-28
申请人： Bruce E. Knuth
发明人： Bruce E. Knuth
CPC分类号： B01D35/0276 , B01D29/114 , B01D29/56 , B01D29/908 , Y10T137/794 , Y10T137/8013 , Y10T137/85954 , Y10T137/86485
摘要： A hydraulic storage tank is provided. The hydraulic storage tank includes a storage tank, a return flow filtration chamber, a contaminant containment chamber (CCC) and a tube connecting the return flow filtration chamber with the CCC. The storage tank defines a reservoir for storing hydraulic fluid. The return flow filtration chamber is configured to house a return flow filter. The CCC includes a boundary wall bounding a cavity and a CCC outlet fluidly communicating the cavity with the reservoir. The CCC outlet is radially inward from the boundary wall. The tube defines a discharge passage fluidly connecting the filtration chamber with the cavity of the CCC and includes an inlet in fluid communication with the filtration chamber and an outlet in fluid communication with the CCC. The outlet of the tube directs fluid in angular direction about an axis defined by the contaminant containment chamber outlet.
摘要翻译： 提供液压储罐。 液压储罐包括储罐，回流过滤室，污染物容纳室（CCC）和将回流过滤室与CCC连接的管。 存储罐限定用于存储液压流体的储存器。 回流过滤室被构造成容纳回流过滤器。 CCC包括界定空腔的边界壁和将空腔与储存器流体连通的CCC出口。 CCC出口从边界壁径向向内。 管限定了将过滤室与CCC的空腔流体连接的排出通道，并且包括与过滤室流体连通的入口和与CCC流体连通的出口。 管的出口引导流体围绕由污染物容纳室出口限定的轴线的角度方向。
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公开(公告)号：US08689823B2
公开(公告)日：2014-04-08
申请号：US12446611
申请日：2007-10-25
CPC分类号： F15B11/072 , F15B2211/20507 , F15B2211/20538 , F15B2211/216 , F15B2211/26 , F15B2211/6051 , F16K31/1221 , Y10T137/7796 , Y10T137/7804 , Y10T137/7922
摘要： A hydro-pneumatic system has an air powered motor driving a hydraulic pump with a pressure limiting valve that turns off air flow to the air motor when a hydraulic pressure output by the pump at a sense port of the valve reaches a certain limit. A valve element of the valve has spring, hydraulic and pneumatic sections, with an unbalanced area of the hydraulic section in a sealed pressure chamber of a cartridge that is part of the valve housing. The pneumatic section extends out one end of the cartridge to fill a bore between the air inlet and outlet ports when the pneumatic section is extended, and allow air to pass when it is retracted.
摘要翻译： 液压气动系统具有驱动液压泵的空气动力马达，该液压泵具有压力限制阀，当在阀的感应端口处的泵输出的液压压力达到一定限度时，该压力限制阀将空气流向空气马达。 阀的阀元件具有弹簧，液压和气动部分，在作为阀壳体的一部分的盒的密封压力室中具有液压部分的不平衡区域。 当气动部分延伸时，气动部分延伸出筒的一端以填充空气入口和出口之间的孔，并允许空气在其缩回时通过。
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