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公开(公告)号：US20140060020A1
公开(公告)日：2014-03-06
申请号：US13714017
申请日：2012-12-13
申请人： CATERPILLAR INC.
IPC分类号： E02F9/22
CPC分类号： E02F9/2292 , E02F9/2235 , E02F9/2242 , E02F9/226 , E02F9/2296 , F15B11/0423 , F15B20/007 , F15B21/042 , F15B2211/20546 , F15B2211/20576 , F15B2211/2656 , F15B2211/3052 , F15B2211/30595 , F15B2211/327 , F15B2211/50536 , F15B2211/62 , F15B2211/6309 , F15B2211/6346 , F15B2211/6652 , F15B2211/6658 , F15B2211/7135 , F15B2211/7142 , F15B2211/85 , F15B2211/8603 , F15B2211/8606
摘要： A hydraulic control system for a machine is disclosed. The hydraulic control system may have a tank, a pump configured to draw fluid from the tank and pressurize the fluid, an actuator, and a control valve configured to direct fluid from the pump to the actuator and from the actuator to the tank to move the actuator. The hydraulic system may also have a main relief valve movable away from a closed position to pass pressurized fluid to the tank when a pressure of the fluid directed to the actuator exceeds a first threshold pressure, and a controller in communication with the pump. The controller may be configured to selectively reduce a displacement of the pump after the main relief valve has moved away from the closed position when the pressure of the fluid directed to the actuator exceeds a second threshold pressure.
摘要翻译： 公开了一种用于机器的液压控制系统。 液压控制系统可以具有罐，泵被配置成从罐中抽出流体并对流体进行加压，致动器和控制阀被配置为将流体从泵引导到致动器并且从致动器引导到罐以移动 执行器。 液压系统还可以具有主动释放阀，其可在远离关闭位置移动，以便在被引导至致动器的流体的压力超过第一阈值压力时将加压流体传递到罐，以及与泵连通的控制器。 控制器可以被配置为当导向致动器的流体的压力超过第二阈值压力时，在主安全阀已经远离关闭位置移动之后选择性地减小泵的位移。
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公开(公告)号：US09328744B2
公开(公告)日：2016-05-03
申请号：US13718907
申请日：2012-12-18
申请人： Caterpillar Inc.
发明人： Rustu Cesur , Lawrence J. Tognetti , Pengfei Ma , Jiao Zhang , Tonglin Shang
CPC分类号： F15B1/033 , F15B1/024 , F15B13/04 , F15B21/082 , F15B21/14 , F15B2211/20546 , F15B2211/212 , F15B2211/6306 , F15B2211/6313 , F15B2211/6336 , F15B2211/665 , F15B2211/6652 , F15B2211/6658 , F15B2211/7058 , F15B2211/8603 , F15B2211/8752 , F15B2211/88
摘要： A hydraulic control system for a machine is disclosed. The hydraulic control system may have a tank, a pump, and a fluid actuator. The hydraulic control system may further have an accumulator configured to selectively receive pressurized fluid discharged from the fluid actuator and selectively supply pressurized fluid to the fluid actuator. The hydraulic control system may also have a pressure sensor configured to generate a signal indicative of a pressure of the accumulator, a charge valve, a discharge valve, and a controller in communication with the control valve, the charge valve, and the discharge valve. The controller may be configured to detect stall of the fluid actuator, to make a comparison of the pressure of the accumulator with a threshold pressure, and to selectively move the charge valve to charge the accumulator or move the discharge valve to discharge the accumulator during the stall based on the comparison.
摘要翻译： 公开了一种用于机器的液压控制系统。 液压控制系统可以具有罐，泵和流体致动器。 液压控制系统还可以具有蓄能器，该蓄能器构造成选择性地接收从流体致动器排出的加压流体并且选择性地将加压流体供应到流体致动器。 液压控制系统还可以具有压力传感器，该压力传感器被配置为产生指示蓄能器，充气阀，排放阀和与控制阀，充气阀和排出阀连通的控制器的压力的信号。 控制器可以被配置为检测流体致动器的失速，以使蓄能器的压力与阈值压力进行比较，并且选择性地移动充气阀以对蓄能器充电或移动排放阀以在蓄能器期间释放蓄能器 摊位基于比较。
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公开(公告)号：US20130105014A1
公开(公告)日：2013-05-02
申请号：US13807984
申请日：2011-07-11
申请人： Jonathan Brooks , Andy Kirby
发明人： Jonathan Brooks , Andy Kirby
IPC分类号： F15B13/042
CPC分类号： F15B13/042 , E05F15/49 , F15B13/0402 , F15B2211/8603 , F16K11/07 , F16K31/1245 , Y10T137/86582
摘要： An adjustable pilot—actuated valve (230) is provided. The adjustable pilot—actuated valve (230) comprises a housing (331) forming a valve chamber (332), a first piston chamber (338), and a second piston chamber (340). The adjustable pilot—actuated valve (230) further includes a valve spool (333) movable within the valve chamber (332). A first piston (334) is movable within the first piston chamber (338) and includes a first side (334a) and a second side (334b) with the second side (334b) coupled to the valve spool (333). A second piston (335) is movable within the second piston chamber (340) and includes a first side (335a) and a second side (335b) with the second side (335b) coupled to the valve spool (333). The adjustable pilot—actuated valve (230) further includes a first pilot port (234) formed in the housing (331) to receive a first pilot pressure and is in fluid communication with the first side (334a) of the first piston (334) and a second pilot port (235) formed in the housing (331) to receive a second pilot pressure and is in fluid communication with the first side (335a) of the second piston (335). A bias port (236) is formed in the housing (333) to receive a bias pressure and is in fluid communication with the second side (334b) of the first piston (334).
摘要翻译： 提供了可调节先导式致动阀（230）。 可调节先导式致动阀（230）包括形成阀室（332）的壳体（331），第一活塞室（338）和第二活塞室（340）。 可调节先导阀（230）还包括可在阀室（332）内移动的阀芯（333）。 第一活塞（334）可在第一活塞室（338）内移动并且包括第一侧（334a）和第二侧（334b），其中第二侧（334b）联接到阀芯（333）。 第二活塞（335）可在第二活塞室（340）内移动并且包括第二侧（335a）和第二侧（335b），第二侧（335b）联接到阀芯（333）。 可调节先导式致动阀（230）还包括形成在壳体（331）中以接纳第一先导压力并与第一活塞（334）的第一侧（334a）流体连通的第一先导口（234） 以及形成在壳体（331）中以接收第二先导压力并与第二活塞（335）的第一侧（335a）流体连通的第二先导端口（235）。 偏压端口（236）形成在壳体（333）中以接收偏置压力并与第一活塞（334）的第二侧（334b）流体连通。
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公开(公告)号：US09151301B2
公开(公告)日：2015-10-06
申请号：US13493184
申请日：2012-06-11
申请人： Michael I. Combley , Dante V. DeLeo
发明人： Michael I. Combley , Dante V. DeLeo
CPC分类号： F15B13/025 , A61G3/061 , A61G3/062 , F15B20/00 , F15B2211/30505 , F15B2211/3056 , F15B2211/3138 , F15B2211/40507 , F15B2211/40584 , F15B2211/411 , F15B2211/41581 , F15B2211/50554 , F15B2211/5158 , F15B2211/761 , F15B2211/8603 , F15B2211/8643
摘要： A hydraulic system for an access arrangement having a platform configured for movement between a deployed position and a stowed position, the hydraulic system including: at least one hydraulic power unit configured to urge hydraulic fluid through a hydraulic circuit; at least one hydraulic cylinder directly or indirectly connected to a portion of the platform and configured to urge the platform towards at least one of the stowed position and the deployed position, wherein the at least one hydraulic cylinder is in fluid communication with the hydraulic power unit; and a pressure regulating valve in a path between the at least one hydraulic power unit and the at least one hydraulic cylinder, wherein the pressure regulating valve is operable to prevent the at least one hydraulic cylinder from urging the platform to the stowed position if a load on the platform exceeds a specified threshold.
摘要翻译： 一种用于进入装置的液压系统，具有构造成在展开位置和收起位置之间运动的平台，所述液压系统包括：至少一个液压动力单元，构造成通过液压回路来迫使液压流体; 至少一个液压缸直接或间接连接到所述平台的一部分并且构造成将所述平台推向所述收起位置和展开位置中的至少一个，其中所述至少一个液压缸与所述液压动力单元流体连通 ; 以及在所述至少一个液压动力单元和所述至少一个液压缸之间的路径中的压力调节阀，其中所述压力调节阀可操作以防止所述至少一个液压缸将所述平台推动到所述收起位置， 在平台上超过指定的阈值。
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公开(公告)号：US09145660B2
公开(公告)日：2015-09-29
申请号：US13714017
申请日：2012-12-13
申请人： Caterpillar Inc.
IPC分类号： E02F9/22 , F15B11/042 , F15B20/00 , F15B21/04
CPC分类号： E02F9/2292 , E02F9/2235 , E02F9/2242 , E02F9/226 , E02F9/2296 , F15B11/0423 , F15B20/007 , F15B21/042 , F15B2211/20546 , F15B2211/20576 , F15B2211/2656 , F15B2211/3052 , F15B2211/30595 , F15B2211/327 , F15B2211/50536 , F15B2211/62 , F15B2211/6309 , F15B2211/6346 , F15B2211/6652 , F15B2211/6658 , F15B2211/7135 , F15B2211/7142 , F15B2211/85 , F15B2211/8603 , F15B2211/8606
摘要： A hydraulic control system for a machine is disclosed. The hydraulic control system may have a tank, a pump configured to draw fluid from the tank and pressurize the fluid, an actuator, and a control valve configured to direct fluid from the pump to the actuator and from the actuator to the tank to move the actuator. The hydraulic system may also have a main relief valve movable away from a closed position to pass pressurized fluid to the tank when a pressure of the fluid directed to the actuator exceeds a first threshold pressure, and a controller in communication with the pump. The controller may be configured to selectively reduce a displacement of the pump after the main relief valve has moved away from the closed position when the pressure of the fluid directed to the actuator exceeds a second threshold pressure.
摘要翻译： 公开了一种用于机器的液压控制系统。 液压控制系统可以具有罐，泵被配置成从罐中抽出流体并对流体进行加压，致动器和控制阀被配置为将流体从泵引导到致动器并且从致动器引导到罐以移动 执行器。 液压系统还可以具有主动释放阀，其可在远离关闭位置移动，以便在被引导至致动器的流体的压力超过第一阈值压力时将加压流体传递到罐，以及与泵连通的控制器。 控制器可以被配置为当导向致动器的流体的压力超过第二阈值压力时，在主安全阀已经远离关闭位置移动之后选择性地减小泵的位移。
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6.发明授权Method for operating a working machine and a working machine with an improved ability to meet transient loads 有权用于操作工作机器和工作机器的方法，具有改进的满足瞬态负载的能力公开(公告)号：US08200400B2
公开(公告)日：2012-06-12
申请号：US12443908
申请日：2006-10-06
申请人： Reno Filla
发明人： Reno Filla
CPC分类号： B60W10/30 , B60K6/48 , B60L1/003 , B60L11/14 , B60L2260/54 , B60W10/06 , B60W10/08 , B60W20/00 , B60W30/188 , B60Y2200/415 , E02F9/207 , E02F9/2075 , E02F9/2246 , E02F9/2253 , F15B11/165 , F15B21/087 , F15B2211/20515 , F15B2211/20523 , F15B2211/20546 , F15B2211/20576 , F15B2211/555 , F15B2211/6309 , F15B2211/6326 , F15B2211/71 , F15B2211/8603 , F16H61/472 , Y02T10/6221 , Y02T10/6286 , Y02T10/70 , Y02T10/7077
摘要： A working machine and a method for operating a working machine are provided. The working machine includes a power source and a plurality of driving wheels; a working hydraulic system including at least one hydraulic pump powered by the power source for moving an implement on the working machine and/or for steering the working machine; a transmission line arranged between the power source and the driving wheels for transmitting torque from the power source to the driving wheels. The method includes detecting at least one operational parameter indicative of a load exerted on the working hydraulic system, determining if torque needs to be added, in addition to a torque delivered by the power source, on the basis of a magnitude of the detected operational parameter in order to reduce the a load on the power source, and adding torque in case additional torque is determined to be needed.
摘要翻译： 提供了一种工作机器和操作工作机器的方法。 工作机械包括动力源和多个驱动轮; 工作液压系统，包括由动力源供电的至少一个液压泵，用于使工作机械上的工具移动和/或用于转向工作机器; 布置在电源和驱动轮之间的传输线，用于将扭矩从电源传递到驱动轮。 该方法包括检测表示施加在工作液压系统上的负载的至少一个操作参数，除了根据检测到的操作参数的大小之外，还确定是否需要添加扭矩，除了由电源传递的扭矩之外 以减少电源上的负载，并且在确定需要额外的扭矩的情况下增加扭矩。
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公开(公告)号：US20030061811A1
公开(公告)日：2003-04-03
申请号：US10260884
申请日：2002-09-30
IPC分类号： F16D031/02
CPC分类号： F15B11/028 , B61D19/026 , E05F15/49 , E05Y2900/50 , E05Y2900/51 , F15B11/15 , F15B2211/20515 , F15B2211/20561 , F15B2211/30505 , F15B2211/50518 , F15B2211/50527 , F15B2211/5153 , F15B2211/528 , F15B2211/613 , F15B2211/632 , F15B2211/6651 , F15B2211/7053 , F15B2211/7716 , F15B2211/86 , F15B2211/8603
摘要： A hydraulic actuating device for a closure assembly, for example of a vehicle, which closure assembly comprises a closure element which can be moved between a closed position, in which the closure element closes off an opening, and an opened position. The hydraulic actuating device comprises a hydraulic actuator for moving the closure element, which actuator has a housing having a closing chamber and an opening chamber. Further provided are a hydraulic pump having an associated electric pump motor and a reservoir for hydraulic fluid. The hydraulic actuating device further comprises a first pressure-limit valve, which is connected to the opening chamber, and a second pressure-limit valve, which is connected to the closing chamber. Control means are further provided for controlling the supply of hydraulic fluid under pressure to the opening chamber or to the closing chamber of the actuator. A hydraulic flow sensor connected to the control means is provided at each pressure-limit valve, such that the one or more hydraulic flow sensors detect the presence of a flow of hydraulic fluid through the pressure-limit valve to the reservoir. The control means are adaptednullif a flow sensor detects a flow of hydraulic fluidnullto reverse the supply of hydraulic fluid under pressure to the actuator, so that the opening motion is changed to a closing motion or vice versa.
摘要翻译： 一种用于例如车辆的闭合组件的液压致动装置，该闭合组件包括封闭元件，所述闭合元件可以在封闭元件封闭开口的关闭位置和打开位置之间移动。 液压致动装置包括用于移动闭合元件的液压致动器，该致动器具有具有闭合室和开口腔的壳体。 还提供了具有相关联的电动泵电动机和用于液压流体的储存器的液压泵。 液压致动装置还包括连接到开口室的第一限压阀和连接到关闭室的第二限压阀。 还提供控制装置，用于控制在压力下的液压流体供应到致动器的开启室或关闭室。 连接到控制装置的液压流量传感器设置在每个限压阀处，使得一个或多个液压流量传感器检测通过压力限制阀到储存器的液压流体的存在。 控制装置适于 - 如果流量传感器检测到液压流体的流动 - 将压力下的液压流体的供应反转到致动器，使得打开运动变为闭合运动，反之亦然。
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公开(公告)号：US20140060031A1
公开(公告)日：2014-03-06
申请号：US13718907
申请日：2012-12-18
申请人： CATERPILLAR INC.
发明人： Rustu Cesur , Lawrence J. Tognetti , Pengfei Ma , Jiao Zhang , Tonglin Shang
CPC分类号： F15B1/033 , F15B1/024 , F15B13/04 , F15B21/082 , F15B21/14 , F15B2211/20546 , F15B2211/212 , F15B2211/6306 , F15B2211/6313 , F15B2211/6336 , F15B2211/665 , F15B2211/6652 , F15B2211/6658 , F15B2211/7058 , F15B2211/8603 , F15B2211/8752 , F15B2211/88
摘要： A hydraulic control system for a machine is disclosed. The hydraulic control system may have a tank, a pump, and a fluid actuator. The hydraulic control system may further have an accumulator configured to selectively receive pressurized fluid discharged from the fluid actuator and selectively supply pressurized fluid to the fluid actuator. The hydraulic control system may also have a pressure sensor configured to generate a signal indicative of a pressure of the accumulator, a charge valve, a discharge valve, and a controller in communication with the control valve, the charge valve, and the discharge valve. The controller may be configured to detect stall of the fluid actuator, to make a comparison of the pressure of the accumulator with a threshold pressure, and to selectively move the charge valve to charge the accumulator or move the discharge valve to discharge the accumulator during the stall based on the comparison.
摘要翻译： 公开了一种用于机器的液压控制系统。 液压控制系统可以具有罐，泵和流体致动器。 液压控制系统还可以具有蓄能器，该蓄能器构造成选择性地接收从流体致动器排出的加压流体并且选择性地将加压流体供应到流体致动器。 液压控制系统还可以具有压力传感器，该压力传感器被配置为产生指示蓄能器，充气阀，排放阀和与控制阀，充气阀和排出阀连通的控制器的压力的信号。 控制器可以被配置为检测流体致动器的失速，以使蓄能器的压力与阈值压力进行比较，并且选择性地移动充气阀以对蓄能器充电或移动排放阀以在蓄能器期间释放蓄能器 摊位基于比较。
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公开(公告)号：US20130327032A1
公开(公告)日：2013-12-12
申请号：US13493184
申请日：2012-06-11
申请人： Michael I. Combley , Dante V. DeLeo
发明人： Michael I. Combley , Dante V. DeLeo
IPC分类号： F15B15/18
CPC分类号： F15B13/025 , A61G3/061 , A61G3/062 , F15B20/00 , F15B2211/30505 , F15B2211/3056 , F15B2211/3138 , F15B2211/40507 , F15B2211/40584 , F15B2211/411 , F15B2211/41581 , F15B2211/50554 , F15B2211/5158 , F15B2211/761 , F15B2211/8603 , F15B2211/8643
摘要： A hydraulic system for an access arrangement having a platform configured for movement between a deployed position and a stowed position, the hydraulic system including: at least one hydraulic power unit configured to urge hydraulic fluid through a hydraulic circuit; at least one hydraulic cylinder directly or indirectly connected to a portion of the platform and configured to urge the platform towards at least one of the stowed position and the deployed position, wherein the at least one hydraulic cylinder is in fluid communication with the hydraulic power unit; and a pressure regulating valve in a path between the at least one hydraulic power unit and the at least one hydraulic cylinder, wherein the pressure regulating valve is operable to prevent the at least one hydraulic cylinder from urging the platform to the stowed position if a load on the platform exceeds a specified threshold.
摘要翻译： 一种用于进入装置的液压系统，具有构造成在展开位置和收起位置之间运动的平台，所述液压系统包括：至少一个液压动力单元，构造成通过液压回路来迫使液压流体; 至少一个液压缸直接或间接连接到所述平台的一部分并且构造成将所述平台推向所述收起位置和展开位置中的至少一个，其中所述至少一个液压缸与所述液压动力单元流体连通 ; 以及在所述至少一个液压动力单元和所述至少一个液压缸之间的路径中的压力调节阀，其中所述压力调节阀可操作以防止所述至少一个液压缸将所述平台推动到所述收起位置， 在平台上超过指定的阈值。
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公开(公告)号：US20130305916A1
公开(公告)日：2013-11-21
申请号：US13863894
申请日：2013-04-16
申请人： PHD. INC
发明人： Nelson Broman
IPC分类号： F16J10/00
CPC分类号： F16J10/00 , E05F15/49 , E05F15/56 , E05Y2201/458 , E05Y2400/53 , F15B20/00 , F15B2211/3057 , F15B2211/3133 , F15B2211/7053 , F15B2211/8603 , F15B2211/8855
摘要： A fluid cylinder assembly including a cylinder, a rod assembly, and a valve assembly. The rod assembly includes a rod having a first end and a second end and a piston connected to the first end of the rod. The piston is slidingly positioned in the cylinder. The second end of the rod extending from the cylinder. The valve assembly is in fluid communication with the cylinder. The valve assembly is configured to moderate pressure within the cylinder when an external force is applied against the second end of the rod.
摘要翻译： 一种包括气缸，杆组件和阀组件的流体缸组件。 杆组件包括具有第一端和第二端的杆，以及连接到杆的第一端的活塞。 活塞滑动地定位在气缸中。 杆的第二端从气缸延伸。 阀组件与气缸流体连通。 阀组件被构造成当外力施加在杆的第二端上时中压缸内的压力。
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