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1. 发明申请

US20170370382A1 HYDRAULIC DRIVE SYSTEM 审中-公开
公开(公告)号：US20170370382A1
公开(公告)日：2017-12-28
申请号：US15543873
申请日：2016-12-09
申请人： KAWASAKI JUKOGYO KABUSHIKI KAISHA
发明人： Akihiro KONDO , Makoto ITO
IPC分类号： F15B11/16 , F15B11/10 , E02F9/20 , E02F9/22
CPC分类号： F15B11/166 , E02F9/2004 , E02F9/2225 , E02F9/2232 , E02F9/2267 , E02F9/2285 , E02F9/2296 , F15B11/10 , F15B2211/20546 , F15B2211/20553 , F15B2211/253 , F15B2211/30555 , F15B2211/327 , F15B2211/329 , F15B2211/40515 , F15B2211/426 , F15B2211/465 , F15B2211/575 , F15B2211/6313 , F15B2211/6346 , F15B2211/6355 , F15B2211/6654 , F15B2211/67 , F15B2211/7053 , F15B2211/71 , F15B2211/88
摘要： A hydraulic drive system includes control valve and operating devices, a variable displacement pump, and a flow regulator. When an operating lever inclination angle becomes a value, a control valve opening area becomes a reference. When the operating lever inclination angle maximizes, the opening area maximizes. The flow regulator: until the operating lever inclination angle becomes the value, increases the pump discharge flow rate with the inclination angle, so a differential pressure between pump discharge and actuator load pressures is constant; when the operating lever inclination angle becomes the value, controls the pump discharge flow rate, so a control valve passing flow rate is an actuator maximum flow rate when the differential pressure is constant; and when the operating lever inclination angle is between the value and the maximum, defines a maximum pump discharge flow rate, so the pump discharge flow rate is kept to the actuator maximum flow rate.

2. 发明申请

US20170284316A1 VARIABLE ENGINE SPEED CONTROL 审中-公开
公开(公告)号：US20170284316A1
公开(公告)日：2017-10-05
申请号：US15476437
申请日：2017-03-31
申请人： Clark Equipment Company
发明人： Ronald S. Hansen , Christopher L. Young
IPC分类号： F02D29/04 , F15B21/08 , F02D29/02 , E02F3/40 , E02F9/02 , E02F9/20 , E02F9/22 , F15B11/08 , E02F3/34
CPC分类号： F02D29/04 , B62D11/02 , E02F3/325 , E02F3/3414 , E02F3/401 , E02F9/024 , E02F9/16 , E02F9/2004 , E02F9/2062 , E02F9/2066 , E02F9/2232 , E02F9/2246 , E02F9/2271 , E02F9/2292 , F02D29/02 , F15B11/08 , F15B21/08 , F15B2211/20523 , F15B2211/275
摘要： Power machines, control systems and methods that adjust engine speed based upon actuation of user input controls that control other power machine functions such as travel functions and lift arm functions. By controlling engine speed at least partially in response to the user input devices controlling other machine functions, more optimal engine speeds can be achieved.

3. 发明申请

US20160305093A1 WORK MACHINE 有权
标题翻译：工作机器
公开(公告)号：US20160305093A1
公开(公告)日：2016-10-20
申请号：US15193109
申请日：2016-06-27
申请人： KUBOTA CORPORATION
发明人： Yuji FUKUDA , Hiroaki NAKAGAWA , Kazuyoshi ARII , Ryosuke KINUGAWA
IPC分类号： E02F9/22 , E02F9/26 , B60T11/28 , F15B20/00 , F15B18/00 , F15B21/04 , E02F9/08 , F15B15/02
CPC分类号： E02F9/2228 , B60T11/21 , B60T11/28 , B60T13/662 , B60T17/22 , E02F3/3414 , E02F9/0866 , E02F9/2232 , E02F9/226 , E02F9/2271 , E02F9/2282 , E02F9/2285 , E02F9/26 , F15B15/02 , F15B18/00 , F15B20/002 , F15B20/007 , F15B21/04 , F15B21/042 , F15B2211/20576 , F15B2211/50518 , F15B2211/611 , F15B2211/615 , F15B2211/62 , F15B2211/6343 , F15B2211/6346 , F15B2211/6355 , F15B2211/7058 , F15B2211/75 , F15B2211/853 , F16H61/4052
摘要： A hydraulic motor has a primary side and a secondary side. A hydraulic pump is to be driven by the engine to supply an operation fluid to the primary side. A bypass circuit is to connect the primary side and the secondary side. An electromagnetic valve is configured to control a flowing amount of the operation fluid in the bypass circuit to control an amount of the operation fluid supplied to the primary side. A filter is disposed in a fluid tube connected to the secondary side. A relief valve is disposed between the hydraulic pump and the primary side. A controller is to control the electromagnetic valve to drive the hydraulic motor in a case where a temperature of the operation fluid is low when the engine is started.
摘要翻译：液压马达具有初级侧和次级侧。液压泵由发动机驱动，以向第一侧供应操作流体。旁路电路是连接初级侧和次级侧。电磁阀被配置为控制旁路回路中的操作流体的流量，以控制供给到初级侧的操作流体的量。过滤器设置在连接到次级侧的流体管中。安装阀设置在液压泵和初级侧之间。当发动机起动时，控制器在控制电磁阀驱动液压马达的情况下，其操作流体的温度低。

4. 发明申请

US20150330415A1 Hydraulic Drive System for Construction Machine 有权
标题翻译：施工机械液压驱动系统
公开(公告)号：US20150330415A1
公开(公告)日：2015-11-19
申请号：US14763000
申请日：2013-11-15
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Kiwamu TAKAHASHI , Shingo KISHIMOTO , Yoshifumi TAKEBAYASHI , Kazushige MORI , Natsuki NAKAMURA
IPC分类号： F15B11/16 , F15B13/02
CPC分类号： F15B11/165 , E02F9/2232 , E02F9/2253 , E02F9/2285 , E02F9/2296 , F15B11/163 , F15B11/168 , F15B13/026 , F15B2211/20553 , F15B2211/253 , F15B2211/30535 , F15B2211/329 , F15B2211/40515 , F15B2211/428 , F15B2211/50536 , F15B2211/6058 , F15B2211/6355 , F15B2211/67 , F15B2211/7135
摘要： An object of the invention is to achieve a travel speed known in the art during travelling operation, improve energy efficiency by reducing energy loss, and obtain favorable travel operability less susceptible to effects from variations in a travel load and changes in a pump delivery pressure when travelling operation is performed through operation of a travel lever over a half stroke range or less. A variable restrictor valve 80 is disposed in parallel with a flow sensing valve 50 of an engine speed sensing valve unit 13. A travel pilot pressure is adapted to act in an opening direction of the variable restrictor valve 80. The variable restrictor valve 80 is set to have a continuously increasing opening area from a full closure to a maximum with an increasing travel pilot pressure. Travel flow control valves 6d and 6e have an opening area that allows a predetermined flow rate QT required for traveling to be obtained even when a target LS differential pressure is decreased to a second specified value Pa3 when the travel lever is fully operated. In a first half of a spool stroke, the travel flow control valves 6d and 6e have an opening area approximate to an opening area of comparative example 1.
摘要翻译：本发明的一个目的是在行驶中实现本领域已知的移动速度，通过减少能量损失来提高能量效率，并获得较不易受行驶负载变化和泵输送压力变化影响的良好行驶操作性能行驶操作通过行程杆在半冲程范围以下的操作来进行。可变节流阀80与发动机速度检测阀单元13的流量检测阀50平行设置。行驶先导压力适于沿可变节流阀80的打开方向作用。可变节流阀80被设定随着行驶先导压力的增加，开启面积从全封闭到不断增加。行程流量控制阀6d和6e具有开口面积，即使当行程杆完全操作时目标LS差压降低到第二规定值Pa3时，也能够获得行驶所需的预定流量QT。行程流量控制阀6d和6e在滑阀冲程的前半部分中具有与比较例1的开口面积近似的开口面积。

5. 发明申请

US20140366517A1 SYSTEM FOR REDUCING FUEL CONSUMPTION IN EXCAVATOR 有权
标题翻译：用于减少挖掘机燃油消耗的系统
公开(公告)号：US20140366517A1
公开(公告)日：2014-12-18
申请号：US14369043
申请日：2012-12-18
申请人： DOOSAN INFRACORE CO., LTD.
发明人： Won Sun Sohn , Myeong Ku Yeo , Kyung Tae Kim
IPC分类号： E02F9/22 , F15B13/04
CPC分类号： E02F9/2232 , E02F9/2235 , E02F9/2239 , E02F9/2242 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B11/17 , F15B13/0401 , F15B2211/20523 , F15B2211/20546 , F15B2211/20576 , F15B2211/3116 , F15B2211/88
摘要： The present disclosure relates to a system for reducing fuel consumption in an excavator, and more particularly, to a system for reducing fuel consumption in an excavator, which may reduce fuel consumption when an excavator travels.A technical problem of the present disclosure, which will be achieved, is to provide a system for reducing fuel consumption in an excavator, which may reduce fuel consumption while improving traveling performance of an excavator.
摘要翻译：本公开涉及一种用于降低挖掘机中的燃料消耗的系统，更具体地，涉及一种用于降低挖掘机的燃料消耗的系统，其可以减少挖掘机行驶时的燃料消耗。本发明的一个技术问题是提供一种用于降低挖掘机的燃料消耗的系统，其可以在改善挖掘机的行驶性能的同时降低燃料消耗。

6. 发明申请

US20140174068A1 HYDRAULIC DRIVE SYSTEM FOR CONSTRUCTION MACHINE 有权
标题翻译：液压驱动系统
公开(公告)号：US20140174068A1
公开(公告)日：2014-06-26
申请号：US14236685
申请日：2012-08-28
申请人： Kazushige Mori , Kiwamu Takahashi , Yoshifumi Takebayashi , Natsuki Nakamura
发明人： Kazushige Mori , Kiwamu Takahashi , Yoshifumi Takebayashi , Natsuki Nakamura
IPC分类号： F15B15/02
CPC分类号： F15B15/02 , E02F3/325 , E02F9/207 , E02F9/2075 , E02F9/2217 , E02F9/2232 , E02F9/2285 , E02F9/2296 , F04B49/06 , F15B11/163 , F15B11/168 , F15B21/14 , F15B2211/20546 , F15B2211/30535 , F15B2211/329 , F15B2211/6058 , F15B2211/71
摘要： A hydraulic motor (52) is arranged in a control hydraulic line (51) connecting a second hydraulic fluid supply line (4a) (for supplying the hydraulic fluid delivered from the main pump (2) to flow control valves (26a to 26h)) to a tank (T). A generator (53) connected with the rotating shaft (52a) of the hydraulic motor (52). Maximum load pressure (PLmax) is detected by a pressure sensor (54). Power generation control of the generator (53) is performed by a second control device (55) so that the hydraulic motor (52) rotates when the delivery pressure of the main pump (2) exceeds target control pressure (Pun) determined by adding a preset value (Pb) to the maximum load pressure (PLmax). AC power generated by the generator (53) is stored in a battery (41).
摘要翻译：液压马达52设置在连接第二液压流体供给管线（4a）（用于将从主泵（2）输送的液压流体供给到流量控制阀（26a〜26h））的控制液压管路51中，到坦克（T）。与液压马达（52）的旋转轴（52a）连接的发电机（53）。最大负载压力（PLmax）由压力传感器（54）检测。发电机（53）的发电控制由第二控制装置（55）进行，使得当主泵（2）的输送压力超过目标控制压力（Pun）时，液压马达（52）转动，预设值（Pb）到最大负载压力（PLmax）。由发电机（53）产生的交流电力被存储在电池（41）中。

7. 发明申请

US20130333367A1 HYDRAULIC CIRCUIT FOR PIPE LAYER 有权
标题翻译：管道液压回路
公开(公告)号：US20130333367A1
公开(公告)日：2013-12-19
申请号：US14002912
申请日：2011-03-07
申请人： Man-Seuk Jeon , Han-Ok Choi
发明人： Man-Seuk Jeon , Han-Ok Choi
IPC分类号： F15B15/18
CPC分类号： F15B11/17 , E02F5/10 , E02F9/2232 , E02F9/2242 , E02F9/2267 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B11/165 , F15B13/08 , F15B15/18 , F15B2211/20553 , F15B2211/20576 , F15B2211/3116 , F15B2211/329 , F15B2211/50536
摘要： Disclosed is a hydraulic circuit for a pipe layer, in which the generation of hydraulic shock in equipment is prevented when an operating device or a moving device is finely operated during combined work in a pipe-laying operation mode. The hydraulic circuit for a pipe layer according to the present invention comprises a main control valve having a straight traveling valve and controls a discharged flow of a hydraulic pump by a negative flow control system, wherein the hydraulic circuit comprises: an unloading valve which linearly controls the closing of a passage of a flow that flows to a hydraulic tank from a center bypass passage of a hydraulic pump when an operating device or a moving device is finely operated during combined work; a pilot valve which is linked with a straight traveling valve, and supplies signal pressure corresponding to an operation signal of the moving device or the operating device to the unloading valve; and an operation mode switch valve which is switched during the combined work, and respectively supplies pilot signal pressure to the straight traveling valve, the pilot valve, and a valve spool which is installed on a downstream side of the center bypass passage of the hydraulic pump.
摘要翻译：本发明公开了一种用于管层的液压回路，其中当在铺管操作模式下的组合工作中操作装置或移动装置被精细地操作时，防止在设备中产生液压冲击。根据本发明的用于管层的液压回路包括具有直行程阀的主控制阀，并通过负流量控制系统控制液压泵的排出流量，其中液压回路包括：卸料阀，当在组合工作期间操作装置或移动装置精细地操作时，从液压泵的中心旁路通道关闭流向液压箱的通道; 导向阀，其与直行运动阀连接，并将对应于移动装置或操作装置的操作信号的信号压力提供给卸载阀; 以及操作模式切换阀，其在组合作业中切换，并且分别向直行程阀，先导阀和阀芯提供先导信号压力，该阀芯安装在液压泵的中心旁通通道的下游侧。

8. 发明授权

US08596052B2 Method for controlling a working machine 失效
标题翻译：控制作业机的方法
公开(公告)号：US08596052B2
公开(公告)日：2013-12-03
申请号：US12741417
申请日：2007-11-21
申请人： Bo Vigholm , Andreas Ekvall
发明人： Bo Vigholm , Andreas Ekvall
IPC分类号： E02F9/22
CPC分类号： E02F9/2228 , E02F9/2203 , E02F9/2232 , F04B49/002 , F15B11/165 , F15B2211/30525 , F15B2211/3054 , F15B2211/327
摘要： A method for controlling a working machine including a hydraulic system for controlling a plurality of work functions, including lift and tilt of an implement, includes the steps of determining a maximum pressure of a hydraulic fluid for performing a certain task with the implement individually for at least one of the work functions, and delivering the hydraulic fluid, pressurized at most to the determined maximum pressure, to the work function.
摘要翻译：一种用于控制包括用于控制多个工作功能的液压系统的工作机械的方法，包括工具的提升和倾斜，包括以下步骤：确定用于执行特定任务的液压流体的最大压力，该工具单独地用于至少一个工作功能，并且将最多加压至所确定的最大压力的液压流体输送到工作功能。

9. 发明申请

US20130055705A1 HYDRAULIC DRIVE SYSTEM FOR CONSTRUCTION MACHINE 有权
标题翻译：液压驱动系统
公开(公告)号：US20130055705A1
公开(公告)日：2013-03-07
申请号：US13641571
申请日：2011-03-09
申请人： Kazushige Mori , Yasutaka Tsuruga , Kiwamu Takahashi , Yoshifumi Takebayashi
发明人： Kazushige Mori , Yasutaka Tsuruga , Kiwamu Takahashi , Yoshifumi Takebayashi
IPC分类号： F15B9/17
CPC分类号： E02F9/2232 , E02F9/2285 , E02F9/2296 , F15B11/163 , F15B2211/253 , F15B2211/30535 , F15B2211/6355 , F15B2211/71 , F15B2211/7135
摘要： A hydraulic drive system for a construction machine has a travel detection device which detects whether or not the operation mode is a traveling operation and a setting changing device. The setting changing device sets the target differential pressure of load sensing control at an absolute pressure Pa when the operation mode is not a traveling operation, and sets the target differential pressure of the load sensing control at an absolute pressure Pa′ rather than the absolute pressure Pa. In this way, in the actuator operation other than traveling, a necessary actuator speed can be obtained and supplied with the necessary maximum flow rate. In addition, during the combined operation, a flow rate in accordance with the opening area ratios of flow control valves can be distributed to actuators different in load pressure from one another; and energy efficiency is enhanced due to less energy loss during traveling operation.
摘要翻译：用于建筑机械的液压驱动系统具有行驶检测装置，其检测操作模式是行驶操作还是设置改变装置。设定更改装置将操作模式不是行驶操作时的负载感测控制的目标压差设定在绝对压力Pa，将负载感测控制的目标压差设定为绝对压力Pa'而不是绝对压力以这种方式，除了行驶之外的致动器操作中，可以获得必要的致动器速度并提供必要的最大流量。此外，在组合操作中，根据流量控制阀的开口面积比的流量可以分配给彼此负载压力不同的致动器; 并且由于行驶中的能量损失较少，能量效率得到提高。

10. 发明授权

US08191290B2 Displacement-controlled hydraulic system for multi-function machines 有权
标题翻译：用于多功能机器的位移控制液压系统
公开(公告)号：US08191290B2
公开(公告)日：2012-06-05
申请号：US12612969
申请日：2009-11-05
申请人： Edward C. Hughes, IV , Christopher Alan Williamson , Joshua D. Zimmerman , Monika Marianne Ivantysynova
发明人： Edward C. Hughes, IV , Christopher Alan Williamson , Joshua D. Zimmerman , Monika Marianne Ivantysynova
IPC分类号： E02F3/43
CPC分类号： E02F9/2232 , E02F9/2292 , E02F9/2296 , F15B11/17 , F15B2211/20523 , F15B2211/20546 , F15B2211/20561 , F15B2211/20569 , F15B2211/2656 , F15B2211/27
摘要： A displacement-controlled hydraulic system for installation on a multi-function machine, and multi-function machines equipped with the hydraulic system and having devices for propelling the machine, at least a first implement, and multiple actuators that perform multiple functions of the machine. The multiple actuators include first actuators that control the first implement and second actuators that control the propelling devices. The hydraulic system comprises multiple pumps for controlling the first actuators and optionally the second actuators, and valves that enable at least one of the pumps to sequentially control two of the multiple actuators and a corresponding two functions of the multiple functions performed thereby. None of the pumps sequentially controls the second actuators in combination with any of the first actuators.
摘要翻译：用于安装在多功能机器上的位移控制液压系统，以及配备有液压系统并具有用于推进机器的装置的至少一个第一工具和执行机器多个功能的多个致动器的多功能机器。多个致动器包括控制第一工具的第一致动器和控制推进装置的第二致动器。液压系统包括用于控制第一致动器和可选地第二致动器的多个泵以及允许至少一个泵顺序地控制多个致动器中的两个并且由此执行的多个功能的对应的两个功能的阀。没有一个泵顺序地控制第二致动器与任何第一致动器的组合。

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