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1. 发明授权

US06572344B1 Compact pump or motor with internal swash plate 失效
标题翻译：紧凑型泵或带内部斜盘的马达
公开(公告)号：US06572344B1
公开(公告)日：2003-06-03
申请号：US09994158
申请日：2001-11-26
申请人： Thomas J. Hajek, Jr. , David P. Smith
发明人： Thomas J. Hajek, Jr. , David P. Smith
IPC分类号： F04B112
CPC分类号： F03C1/0605 , F03C1/0615 , F03C1/0631 , F04B1/124 , F04B1/146 , F04B1/148
摘要： A fluid translating device is provided that includes a first member having fluid inlet/outlet ports and a second member having a plurality of pistons disposed therein secured to a stationary central shaft. A camplate and port plate is disposed in the fluid translating device about the stationary central shaft and located between the first and second members. The camplate is in communication with the fluid inlet/outlet ports and the plurality of pistons is in mating contact with the port plate. An outer input/output member is secured about the camplate and is rotatably disposed about the first and second members to form a compact arrangement.
摘要翻译：提供一种流体平移装置，其包括具有流体入口/出口的第一构件和具有多个固定在固定中心轴上的活塞的第二构件。凸轮板和端口板围绕静止中心轴设置在流体平移装置中并且位于第一和第二构件之间。凸轮板与流体入口/出口端口连通，并且多个活塞与端口板配合接触。外部输入/输出构件围绕凸轮板固定，并且围绕第一和第二构件可旋转地设置以形成紧凑的布置。

2. 发明授权

US06173639B1 Fluid control system having float control 有权
标题翻译：流体控制系统具有浮动控制
公开(公告)号：US06173639B1
公开(公告)日：2001-01-16
申请号：US09307167
申请日：1999-05-07
申请人： Michael A. A'Hearn , Thomas J. Hajek, Jr. , Srikrishnan T. Tolappa
发明人： Michael A. A'Hearn , Thomas J. Hajek, Jr. , Srikrishnan T. Tolappa
IPC分类号： F15B11024
CPC分类号： F15B11/003 , F15B2013/0413 , F15B2211/20576 , F15B2211/30515 , F15B2211/30525 , F15B2211/3116 , F15B2211/3127 , F15B2211/3144 , F15B2211/31529 , F15B2211/31541 , F15B2211/329 , F15B2211/40515 , F15B2211/413 , F15B2211/41581 , F15B2211/428 , F15B2211/46
摘要： A fluid control circuit providing a float capability for a double-acting actuator having first and second actuating chambers is provided. The fluid circuit includes signal controlled load check valves disposed between the actuating chambers and a directional control valve. The directional control valve is movable from a centered, neutral position towards first and second operative positions and a float position. The directional control valve and the load check valves are cooperatively operable in one operable position to allow fluid flow from the first actuating chamber to the exhaust port, and fluid flow from the pump port to the second actuating chamber. In the float position of the directional control valve, both of the signal controlled load check valves are opened to allow open fluid flow between the first and second actuating chambers thus allowing the tool attached to the actuator to float.
摘要翻译：提供了一种为具有第一和第二致动室的双作用致动器提供浮动能力的流体控制电路。流体回路包括设置在致动室和方向控制阀之间的信号控制负载止回阀。方向控制阀可从中心的中立位置朝向第一和第二操作位置以及浮动位置移动。方向控制阀和负载止回阀在一个可操作的位置协作地可操作以允许流体从第一致动室流到排气口，并且流体从泵口流到第二致动室。在方向控制阀的浮动位置，两个信号控制的负载止回阀被打开以允许第一和第二致动室之间的开放的流体流动，从而允许附接到致动器的工具浮动。

3. 发明授权

US5709368A Hydraulic control valve for fluid metering and cylinder protection 失效
标题翻译：用于液体计量和气缸保护的液压控制阀
公开(公告)号：US5709368A
公开(公告)日：1998-01-20
申请号：US703296
申请日：1996-08-26
申请人： Thomas J. Hajek, Jr.
发明人： Thomas J. Hajek, Jr.
IPC分类号： F15B13/04 , G05D16/20 , F16K31/12
CPC分类号： F15B13/0405 , G05D16/2093 , Y10T137/7761 , Y10T137/7768
摘要： A hydraulic control valve for minimizing fluid leakage from a load actuating cylinder and for protecting the cylinder from damage has a composite valve body with a poppet slidably disposed in a bore and biased to the closed position. A pilot spool, controllable by a proportional solenoid regulates pilot pressure. Regulated pilot pressure allows for accurate control of the poppet for metering fluid from cylinder to tank. A force feedback spring disposed between the poppet and the pilot spool exerts a force on the pilot spool equivalent to the force from the proportional solenoid keeping the forces in equilibrium. Pilot pressure is adjusted to establish the relief pressure setting for the hydraulic control valve while conical sealing surfaces, minimize fluid leakage from cylinder to tank.
摘要翻译：一种液压控制阀，用于最小化来自负载致动缸的流体泄漏并用于保护气缸免受损坏的复合阀体具有可滑动地设置在孔中并被偏压到关闭位置的提升阀。可由比例电磁铁控制的先导阀芯调节先导压力。调节先导压力允许精确控制从气缸到罐的计量流体的提升阀。设置在提升阀和先导阀芯之间的力反馈弹簧在先导阀芯上施加相当于保持力平衡的比例螺线管的力的等效力。调节先导压力，以确定液压控制阀的安全压力设置，同时使圆锥形密封表面尽可能减少液体从油缸泄漏到油箱。

4. 发明授权

US06976418B2 Hydraulic system with an actuator having independent meter-in meter-out control 失效
标题翻译：具有执行器的液压系统具有独立的计量输出控制
公开(公告)号：US06976418B2
公开(公告)日：2005-12-20
申请号：US10751589
申请日：2004-01-05
申请人： Thomas J. Hajek, Jr. , Vincent Triffaux
发明人： Thomas J. Hajek, Jr. , Vincent Triffaux
IPC分类号： F15B11/00 , F15B11/024 , F15B11/042 , F15B11/044
CPC分类号： F15B11/042 , F15B11/006 , F15B11/024 , F15B11/044 , F15B2211/30505 , F15B2211/3052 , F15B2211/30575 , F15B2211/327 , F15B2211/351 , F15B2211/353 , F15B2211/40515 , F15B2211/41536 , F15B2211/6054 , F15B2211/63 , F15B2211/6346 , F15B2211/6654 , F15B2211/7053 , F15B2211/75 , F15B2211/76
摘要： A fluid circuit is provided to independently control the flow of fluid into and out of each end of an actuator. This is accomplished by having two different independently controlled valves controlling the flow of fluid into and out of one end of the actuator and by having two other independently controlled valves controlling the flow of fluid into and out of the other end of the actuator. Regeneration of the fluid flow from one end of the actuator to the other end of the actuator is provided by blocking the exhaust flow of fluid to the reservoir by one of the independently controlled valves and redirecting the flow across the other of the independently controlled valves to join with the flow of the pump that is being directed to the other end of the actuator. This arrangement permits a portion or all of the fluid from one end of the actuator to be regenerated to the other end of the actuator.
摘要翻译：提供流体回路以独立地控制进入和离开致动器的每一端的流体的流动。这是通过使两个不同的独立控制的阀控制流体进入和离开致动器的一端的流动，并且通过使用另外两个独立控制的阀来控制进入和离开致动器的另一端的流体的流动。通过将独立控制的阀中的一个阻塞到储存器的流体的排出流，并将流过另一个独立控制的阀的流动重新定向到另一个独立控制的阀，从而提供从致动器的一端到致动器的另一端的流体流的再生与被引导到致动器的另一端的泵的流动连接。这种布置允许来自致动器的一端的一部分或全部流体再生到致动器的另一端。

5. 发明授权

US06701822B2 Independent and regenerative mode fluid control system 失效
标题翻译：独立和再生模式流体控制系统
公开(公告)号：US06701822B2
公开(公告)日：2004-03-09
申请号：US10244074
申请日：2002-09-16
申请人： Thomas J. Hajek, Jr. , Srikrishnan T. Tolappa , James D. Linderode
发明人： Thomas J. Hajek, Jr. , Srikrishnan T. Tolappa , James D. Linderode
IPC分类号： F15B1100
CPC分类号： E02F9/2217 , E02F9/2225 , F15B11/024 , F15B11/16 , F15B21/14 , F15B2011/0246 , F15B2211/30505 , F15B2211/30575 , F15B2211/3058 , F15B2211/3059 , F15B2211/31588 , F15B2211/327 , F15B2211/351 , F15B2211/353 , F15B2211/71
摘要： A fluid control system is disclosed that includes a first double-acting actuator and a second double-acting actuator. A first independent metering valve has a first control port connected to the first double-acting actuator, a second control port connected to the second double-acting actuator, first and second independently operable valves disposed between the inlet port and the first and second control ports, and a first check control mechanism having a main check valve between the inlet port and the first and second independently operable valves. The first check control mechanism controls the main check valve to allow the first and second actuators to operate in either an independent function mode or a regenerative function mode. A second independent metering valve has a first control port connected to the first double-acting actuator, a second control port connected to the second double-acting actuator, first and second independently operable valves disposed between the inlet port and the first and second control ports, and a main check valve disposed between the inlet port and the first and second independently operable valves.
摘要翻译：公开了一种流体控制系统，其包括第一双作用致动器和第二双作用致动器。第一独立计量阀具有连接到第一双作用致动器的第一控制端口，连接到第二双作用致动器的第二控制端口，设置在入口端口和第一和第二控制端口之间的第一和第二可独立操作的阀以及第一检查控制机构，其具有在所述入口与所述第一和第二可独立操作的阀之间的主止回阀。第一检查控制机构控制主止回阀以允许第一和第二致动器以独立功能模式或再生功能模式操作。第二独立计量阀具有连接到第一双作用致动器的第一控制端口，连接到第二双作用致动器的第二控制端口，设置在入口端口和第一和第二控制端口之间的第一和第二可独立操作的阀以及设置在入口与第一和第二可独立操作的阀之间的主止回阀。

6. 发明授权

US06691604B1 Hydraulic system with an actuator having independent meter-in meter-out control 有权
公开(公告)号：US06691604B1
公开(公告)日：2004-02-17
申请号：US09406893
申请日：1999-09-28
申请人： Thomas J. Hajek, Jr. , Vincent Triffaux
发明人： Thomas J. Hajek, Jr. , Vincent Triffaux
IPC分类号： F15B11024
CPC分类号： F15B11/042 , F15B11/006 , F15B11/024 , F15B11/044 , F15B2211/30505 , F15B2211/3052 , F15B2211/30575 , F15B2211/327 , F15B2211/351 , F15B2211/353 , F15B2211/40515 , F15B2211/41536 , F15B2211/6054 , F15B2211/63 , F15B2211/6346 , F15B2211/6654 , F15B2211/7053 , F15B2211/75 , F15B2211/76
摘要： A fluid circuit is provided to independently control the flow of fluid into and out of each end of an actuator. This is accomplished by having two different independently controlled valves controlling the flow of fluid into and out of one end of the actuator and by having two other independently controlled valves controlling the flow of fluid into and out of the other end of the actuator. Regeneration of the fluid flow from one end of the actuator to the other end of the actuator is provided by blocking the exhaust flow of fluid to the reservoir by one of the independently controlled valves and redirecting the flow across the other of the independently controlled valves to join with the flow of the pump that is being directed to the other end of the actuator. This arrangement permits a portion or all of the fluid from one end of the actuator to be regenerated to the other end of the actuator.

7. 发明授权

US06199378B1 Off-setting rate of pressure rise in a fluid system 有权
标题翻译：流体系统压力上升偏移率
公开(公告)号：US06199378B1
公开(公告)日：2001-03-13
申请号：US09400683
申请日：1999-09-21
申请人： James A. Aardema , Thomas J. Hajek, Jr. , Douglas W. Koehler , Edward W. Mate , Vincent Triffaux
发明人： James A. Aardema , Thomas J. Hajek, Jr. , Douglas W. Koehler , Edward W. Mate , Vincent Triffaux
IPC分类号： F16D3102
CPC分类号： F15B13/0405 , F15B11/006 , F15B11/028 , F15B2211/20546 , F15B2211/30575 , F15B2211/3111 , F15B2211/3144 , F15B2211/31576 , F15B2211/327 , F15B2211/45 , F15B2211/50518 , F15B2211/513 , F15B2211/5151 , F15B2211/526 , F15B2211/55 , F15B2211/6309 , F15B2211/6313 , F15B2211/6346 , F15B2211/6652 , F15B2211/6653
摘要： A control arrangement operates in conjunction with a control scheme to control the maximum pressure level within a conduit network of a fluid system without the need to have high flow pressure relief valves. The control arrangement provides a low flow pressure relief valve connected in parallel with an electrically actuated valve mechanism to trim any over-pressure conditions so that the control scheme has more time to move the electrically actuated valve mechanism to a flow bypassing, pressure relieving position.
摘要翻译：控制装置结合控制方案进行操作，以控制流体系统的管道网络内的最大压力水平，而不需要具有高流量压力释放阀。该控制装置提供了一个与电动阀机构并联连接的低流量泄压阀，以便调整任何过压状态，使得控制方案具有更多的时间将电致动的阀机构移动到流动旁路的减压位置。

8. 发明授权

US06321534B1 Ride control 有权
标题翻译：驾驶控制
公开(公告)号：US06321534B1
公开(公告)日：2001-11-27
申请号：US09348490
申请日：1999-07-07
申请人： Michael A. A'Hearn , Thomas J. Hajek, Jr. , Michael D. Hudson , Lawrence F. Schexnayder , Srikrishnan T. Tolappa
发明人： Michael A. A'Hearn , Thomas J. Hajek, Jr. , Michael D. Hudson , Lawrence F. Schexnayder , Srikrishnan T. Tolappa
IPC分类号： F16D3102
CPC分类号： B60G17/0152 , B60G17/056 , B60G2500/02 , B60G2500/022 , B60G2500/203 , E02F9/2207 , E02F9/2217 , E02F9/2296 , F15B1/021
摘要： A ride control system adapted for use in a fluid system of a machine to cushion the ride of the machine, the machine having a frame with an actuator arrangement disposed between the frame and a load to raise the load relative to the frame, the actuator arrangement having a raise port and being operative in a raise mode to raise the load to a desired height in response to pressurized fluid being directed to the raise port from a source of the pressurized fluid, the ride control system including an accumulator arrangement and a valve arrangement connected between the accumulator arrangement, the actuator arrangement, and the source of pressurized fluid, and operative to selectively connect the accumulator arrangement to the raise port of the actuator arrangement when in the raise mode while maintaining the load at the desired height.
摘要翻译：一种适于在机器的流体系统中使用以缓冲机器骑行的行驶控制系统，所述机器具有框架，所述框架具有设置在所述框架和负载之间的致动器装置以相对于所述框架升高所述负载，所述致动器装置具有升高端口并且在升高模式下操作以响应于加压流体从加压流体的源引导到升高端口而将负载升高到期望的高度，所述行驶控制系统包括蓄能器装置和阀装置连接在蓄能器装置，致动器装置和加压流体源之间，并且当处于提升模式时将蓄能器装置选择性地连接到致动器装置的升高端口，同时将负载保持在期望的高度。

9. 发明授权

US06293181B1 Control system providing a float condition for a hydraulic cylinder 失效
标题翻译：控制系统为液压缸提供浮动状态
公开(公告)号：US06293181B1
公开(公告)日：2001-09-25
申请号：US09400670
申请日：1999-09-21
申请人： Thomas J. Hajek, Jr. , Srikrishnan T. Tolappa , Daniel T. Mather
发明人： Thomas J. Hajek, Jr. , Srikrishnan T. Tolappa , Daniel T. Mather
IPC分类号： F15B1310
CPC分类号： F15B11/024 , F15B2211/20576 , F15B2211/3051 , F15B2211/30525 , F15B2211/3111 , F15B2211/3127 , F15B2211/3144 , F15B2211/31576 , F15B2211/329 , F15B2211/6355 , F15B2211/67
摘要： A control system is provided with a float condition to permit a double acting hydraulic cylinder to freely extend or retract in response to external forces acting on the hydraulic cylinder. The system includes a pair of pilot operated poppet valves disposed between the opposite sides of the hydraulic cylinder and a directional control valve. The pilot condition is obtained by opening a pair of pilot operated control valves to vent the control chambers of the poppet valves to a tank through a pair of float check valves. The float check valves are operative to prevent higher pressure fluid from being transmitted from the tank to the control chambers of the poppet valves when a negative pressure occurs in the side of the hydraulic cylinder that is connected to the control chamber.
摘要翻译：控制系统设置有浮动状态，以允许双作用液压缸响应于作用在液压缸上的外力自由地延伸或缩回。该系统包括一对先导操作的提升阀，其设置在液压缸的相对侧和方向控制阀之间。通过打开一对先导操作的控制阀以通过一对浮动止回阀将提升阀的控制室排出到罐中来获得先导条件。当在与控制室连接的液压缸侧发生负压时，浮动止回阀可操作以防止高压流体从罐传递到提升阀的控制室。

10. 发明授权

US6089528A Poppet valve control with sealing element providing improved load drift control 失效
标题翻译：提升阀控制与密封元件提供改进的负载漂移控制
公开(公告)号：US6089528A
公开(公告)日：2000-07-18
申请号：US216439
申请日：1998-12-18
申请人： Thomas J. Hajek, Jr. , Srikrishnan T. Tolappa
发明人： Thomas J. Hajek, Jr. , Srikrishnan T. Tolappa
IPC分类号： F16K1/38 , F15B13/04 , F15B13/042 , F16K31/12 , F16K31/34 , F16K31/383 , F16K31/40
CPC分类号： F15B13/0405 , F15B13/0426
摘要： A control for a poppet valve providing improved load drift control is disclosed. The control includes a valve member operably moveable between a closed position and a range of open positions for allowing flow from an associated poppet control chamber, and a sealing element disposed between a first cavity portion in communication with the control chamber and a second cavity portion for preventing leakage around the valve member therebetween. The sealing element is supported by structure which maintains the sealing element in close alignment with a bore in which the valve member is supported, the sealing element in several embodiments being integrally formed with the bore and in other embodiments being self aligning with the bore.
摘要翻译：公开了一种提供改进的负载漂移控制的提升阀的控制。控制器包括可在关闭位置和一定范围的打开位置之间运动的阀构件，用于允许从相关联的提升阀控制室流出;以及密封元件，其设置在与控制室连通的第一空腔部分和第二空腔部分之间，防止阀构件周围的泄漏。密封元件由结构支撑，该结构保持密封元件与其中阀构件被支撑的孔紧密对准，在几个实施例中，密封元件与孔一体地形成，并且在其他实施例中与密封件自对准。

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