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51. 发明授权

US08201404B2 Motor control device for construction machinery 失效
标题翻译：工程机械电机控制装置
公开(公告)号：US08201404B2
公开(公告)日：2012-06-19
申请号：US12307307
申请日：2007-07-04
申请人： Hidetoshi Satake
发明人： Hidetoshi Satake
IPC分类号： E02F9/22 , F15B21/04
CPC分类号： E02F9/2253 , E02F9/2232 , E02F9/2285 , E02F9/2296 , F15B2211/20523 , F15B2211/20546 , F15B2211/50527 , F15B2211/613 , F15B2211/7058 , F16H61/4069 , F16H61/4148 , F16H61/4157 , F16H61/4165 , F16H2059/186
摘要： A motor control device for construction machinery includes a hydraulic pump; a hydraulic motor driven by pressure oil from the hydraulic pump; a control valve that controls a flow of the pressure oil from the hydraulic pump to the hydraulic motor; a pair of main conduit lines that connect the hydraulic motor and the control valve on a delivery side and a return side thereof; an operation member that operates a spool of the control valve to either a neutral position that does not allow the pressure oil for driving from the hydraulic pump to pass through control valve to the hydraulic motor or a non-neutral position that allows the pressure oil for driving to pass through the control valve to the hydraulic motor; a braking pressure generating device that generates braking pressure in the main conduit lines on the return side in a state where the spool of the control valve is positioned in the neutral position as a result of being operated by the operation member, the braking pressure opposing rotation of the hydraulic motor; and a flow control device for allowing the pressure oil from the hydraulic pump to flow into the pair of main conduit lines while the braking pressure is generated by the braking pressure generating device.
摘要翻译：一种用于工程机械的电动机控制装置包括液压泵; 由液压泵由压力油驱动的液压马达; 控制阀，其控制从液压泵到液压马达的压力油的流动; 一对主管道，其连接液压马达和控制阀的输送侧及其返回侧; 操作构件，其将控制阀的阀芯操作到不允许用于从液压泵驱动的压力油通过控制阀到液压马达的中立位置或允许压力油为驾驶通过控制阀到液压马达; 制动压力产生装置，在由操作构件操作控制阀的阀芯位于中立位置的状态下，在返回侧的主管道中产生制动压力，制动压力相对旋转的液压马达; 以及流量控制装置，用于在制动压力产生装置产生制动压力的同时，允许来自液压泵的压力油流入所述一对主管道管线。

52. 发明申请

US20120043154A1 HYDRAULIC SYSTEM 审中-公开
标题翻译：液压系统
公开(公告)号：US20120043154A1
公开(公告)日：2012-02-23
申请号：US13213289
申请日：2011-08-19
申请人： Marcus Bitter , Wolfgang Reck , Mario Seebode , Ulrich Hoppe , Thilo Kazimiers , Josef Peters
发明人： Marcus Bitter , Wolfgang Reck , Mario Seebode , Ulrich Hoppe , Thilo Kazimiers , Josef Peters
IPC分类号： B62D5/06
CPC分类号： E02F9/2217 , B62D5/075 , E02F9/2232 , E02F9/225 , F15B1/024 , F15B11/162 , F15B2211/20546 , F15B2211/212 , F15B2211/40584 , F15B2211/62
摘要： A hydraulic system for a mobile working machine includes a hydraulic pump, a steering valve, a steering actuator controlled by the steering valve, a first hydraulic line which extends between the hydraulic pump and the steering valve, and a hydraulic storage unit which is connected with the first hydraulic line via a second hydraulic line). So as to optimize a pressure state for the hydraulic system, a throttle connected in parallel with a check valve is located in the second hydraulic line. The check valve permits one-way fluid flow in a direction away from the hydraulic storage unit.
摘要翻译：一种用于移动式工作机械的液压系统，包括液压泵，转向阀，由转向阀控制的转向致动器，在液压泵和转向阀之间延伸的第一液压管路，以及液压存储单元，其与通过第二液压管线的第一液压管路）。为了优化液压系统的压力状态，与止回阀并联连接的节气门位于第二液压管路中。止回阀允许单向流体沿远离液压存储单元的方向流动。

53. 发明申请

US20110173964A1 HYDRAULIC DRIVE SYSTEM FOR CONSTRUCTION MACHINE 有权
标题翻译：液压驱动系统
公开(公告)号：US20110173964A1
公开(公告)日：2011-07-21
申请号：US13121040
申请日：2009-09-09
申请人： Kiwamu Takahashi , Yasutaka Tsuruga , Yoshifumi Takebayashi , Kazushige Mori
发明人： Kiwamu Takahashi , Yasutaka Tsuruga , Yoshifumi Takebayashi , Kazushige Mori
IPC分类号： F16H61/433
CPC分类号： E02F9/2232 , E02F9/2225 , E02F9/2285 , E02F9/2296 , F15B11/163 , F15B11/165 , F15B2211/20546 , F15B2211/253 , F15B2211/30535 , F15B2211/50518 , F15B2211/50536
摘要： A main relief valve 13 includes a biasing force altering unit 60, which constitutes, in combination with a gate lock valve 23 and a gate lock lever 24, relief pressure altering means for manually switching the relief pressure of the main relief valve 13 between a first pressure (a standard pressure of 25 MPa, for example) and a second lower pressure for engine start-up (e.g., 3.0 MPa). This allows the main relief valve 13 to return the hydraulic fluid discharged from a hydraulic pump 2 to a tank T in conjunction with an unloading valve 9 when multiple actuators 5a, 5b, . . . are not in operation under the ambient temperature below freezing point. As a result, it is possible to reduce the load on the hydraulic pump during cold engine start-up without compromising the anti-hunting characteristics of the unloading valve, thereby improving the engine start-up performance.
摘要翻译：主安全阀13包括偏压力改变单元60，该偏压力改变单元60与闸门锁定阀23和闸门锁定杆24组合，安全压力改变装置，用于手动地将主安全阀13的溢流压力切换到第一压力（例如，25MPa的标准压力）和用于发动机起动的第二较低压力（例如，3.0MPa）。这允许主安全阀13在多个致动器5a，5b，...时将与液压泵2排出的液压流体连同卸载阀9一起返回到储罐T. 。。在低于冰点的环境温度下不工作。结果，可以在冷启动时降低液压泵的负荷，而不会影响卸载阀的防狩猎特性，从而提高发动机起动性能。

54. 发明授权

US07854115B2 Post-pressure compensated hydraulic control valve with load sense pressure limiting 有权
标题翻译：压力补偿液压控制阀，带负载检测压力限制
公开(公告)号：US07854115B2
公开(公告)日：2010-12-21
申请号：US12109726
申请日：2008-04-25
申请人： Andreas S. Pack , Lynn Russell
发明人： Andreas S. Pack , Lynn Russell
IPC分类号： F16D31/02 , F15B13/042
CPC分类号： F15B11/163 , E02F9/2225 , E02F9/2232 , E02F9/2296 , F15B11/165 , F15B2211/20553 , F15B2211/253 , F15B2211/30555 , F15B2211/3111 , F15B2211/3144 , F15B2211/31576 , F15B2211/6055 , F15B2211/65
摘要： An array of valve sections in a hydraulic system are connected to a supply line, a tank return line, and a load sense line. One valve sections includes a control valve with a metering orifice through which fluid flows from the supply line to a valve outlet. A load sense node is coupled by a load sense orifice to the load sense line. A load sense pressure limiter prevents pressure at the load sense node from exceeding a threshold level. A pressure compensator is connected in a fluid path between the valve outlet and one of the hydraulic actuators. The pressure compensator opens and closes the fluid path in response to pressure at the valve outlet and pressure at the load sense node, thereby governing the maximum amount of pressure that the respective valve section can apply to the hydraulic actuator.
摘要翻译：液压系统中的一系列阀部分连接到供应管线，罐返回管线和负载检测管线。一个阀部分包括具有计量孔口的控制阀，流体从该供应管路流到阀出口。负载感测节点通过负载感测孔耦合到负载感测线。负载感测压力限制器防止负载感测节点处的压力超过阈值水平。压力补偿器连接在阀出口和其中一个液压致动器之间的流体路径中。压力补偿器响应于阀出口处的压力和负载感测节点处的压力来打开和关闭流体路径，从而控制相应阀部分可以施加到液压致动器的最大压力量。

55. 发明申请

US20100300086A1 HYDRAULIC CONTROL ARRANGEMENT AND DISTRIBUTION VALVE SECTION 审中-公开
标题翻译：液压控制装置和分配阀部分
公开(公告)号：US20100300086A1
公开(公告)日：2010-12-02
申请号：US12743589
申请日：2008-11-14
申请人： Peter Büttner , Martin Birk , Armin Stellwagen
发明人： Peter Büttner , Martin Birk , Armin Stellwagen
IPC分类号： F15B11/042
CPC分类号： F15B11/165 , E02F9/2232 , E02F9/2267 , E02F9/2296 , F15B2211/20553 , F15B2211/30535 , F15B2211/3144 , F15B2211/31511 , F15B2211/351 , F15B2211/6054 , F15B2211/6055 , F15B2211/653 , F15B2211/7058
摘要： A hydraulic control arrangement and a method for pressure medium supply of hydraulic consumers are disclosed, comprising an LS pump which can be controlled by a pump regulator dependent on the highest load pressure of the consumers. The pressure medium volume flow to each consumer is adjusted using a metering aperture, wherein on controlling a consumer a higher pressure than the load pressure is signaled to the LS pump regulator, so that the LS pump is controlled according to the higher pressure rather than the low load pressure of said consumer.
摘要翻译：公开了一种液压控制装置和用于液压消耗器的压力介质供给的方法，其包括LS泵，其可以由泵调节器控制，取决于消费者的最高负载压力。使用计量孔调节向每个消费者的压力介质体积流量，其中在控制消费者时，将压力传递给LS泵调节器的负载压力更高的压力，使得LS泵根据较高压力而不是所述消费者的低负载压力。

56. 发明申请

US20090308066A1 Motor Control Device for Construction Machinery 失效
标题翻译：工程机械电机控制装置
公开(公告)号：US20090308066A1
公开(公告)日：2009-12-17
申请号：US12307307
申请日：2007-07-04
申请人： Hidetoshi Satake
发明人： Hidetoshi Satake
IPC分类号： F16D31/02
CPC分类号： E02F9/2253 , E02F9/2232 , E02F9/2285 , E02F9/2296 , F15B2211/20523 , F15B2211/20546 , F15B2211/50527 , F15B2211/613 , F15B2211/7058 , F16H61/4069 , F16H61/4148 , F16H61/4157 , F16H61/4165 , F16H2059/186
摘要： A motor control device for construction machinery includes a hydraulic pump; a hydraulic motor driven by pressure oil from the hydraulic pump; a control valve that controls a flow of the pressure oil from the hydraulic pump to the hydraulic motor; a pair of main conduit lines that connect the hydraulic motor and the control valve on a delivery side and a return side thereof; an operation member that operates a spool of the control valve to either a neutral position that does not allow the pressure oil for driving from the hydraulic pump to pass through control valve to the hydraulic motor or a non-neutral position that allows the pressure oil for driving to pass through the control valve to the hydraulic motor; a braking pressure generating device that generates braking pressure in the main conduit lines on the return side in a state where the spool of the control valve is positioned in the neutral position as a result of being operated by the operation member, the braking pressure opposing rotation of the hydraulic motor; and a flow control device for allowing the pressure oil from the hydraulic pump to flow into the pair of main conduit lines while the braking pressure is generated by the braking pressure generating device.
摘要翻译：一种用于工程机械的电动机控制装置包括液压泵; 由液压泵由压力油驱动的液压马达; 控制阀，其控制从液压泵到液压马达的压力油的流动; 一对主管道，其连接液压马达和控制阀的输送侧及其返回侧; 操作构件，其将控制阀的阀芯操作到不允许用于从液压泵驱动的压力油通过控制阀到液压马达的中立位置或允许压力油为驾驶通过控制阀到液压马达; 制动压力产生装置，在由操作构件操作控制阀的阀芯位于中立位置的状态下，在返回侧的主管道中产生制动压力，制动压力相对旋转的液压马达; 以及流量控制装置，用于在制动压力产生装置产生制动压力的同时，允许来自液压泵的压力油流入所述一对主管道管线。

57. 发明申请

US20090266070A1 POST-PRESSURE COMPENSATED HYDRAULIC CONTROL VALVE WITH LOAD SENSE PRESSURE LIMITING 有权
标题翻译：后压力补偿液压控制阀，带负载感应压力限制
公开(公告)号：US20090266070A1
公开(公告)日：2009-10-29
申请号：US12109726
申请日：2008-04-25
申请人： Andreas S. Pack , Lynn Russell
发明人： Andreas S. Pack , Lynn Russell
IPC分类号： F15B13/02
CPC分类号： F15B11/163 , E02F9/2225 , E02F9/2232 , E02F9/2296 , F15B11/165 , F15B2211/20553 , F15B2211/253 , F15B2211/30555 , F15B2211/3111 , F15B2211/3144 , F15B2211/31576 , F15B2211/6055 , F15B2211/65
摘要： An array of valve sections in a hydraulic system are connected to a supply line, a tank return line, and a load sense line. One valve sections includes a control valve with a metering orifice through which fluid flows from the supply line to a valve outlet. A load sense node is coupled by a load sense orifice to the load sense line. A load sense pressure limiter prevents pressure at the load sense node from exceeding a threshold level. A pressure compensator is connected in a fluid path between the valve outlet and one of the hydraulic actuators. The pressure compensator opens and closes the fluid path in response to pressure at the valve outlet and pressure at the load sense node, thereby governing the maximum amount of pressure that the respective valve section can apply to the hydraulic actuator.
摘要翻译：液压系统中的一系列阀部分连接到供应管线，罐返回管线和负载检测管线。一个阀部分包括具有计量孔口的控制阀，流体从该供应管路流到阀出口。负载感测节点通过负载感测孔耦合到负载感测线。负载感测压力限制器防止负载感测节点处的压力超过阈值水平。压力补偿器连接在阀出口和其中一个液压致动器之间的流体路径中。压力补偿器响应于阀出口处的压力和负载感测节点处的压力来打开和关闭流体路径，从而控制相应阀部分可以施加到液压致动器的最大压力量。

58. 发明授权

US07430859B2 Fluid pump control system for excavators 失效
标题翻译：挖掘机流体泵控制系统
公开(公告)号：US07430859B2
公开(公告)日：2008-10-07
申请号：US11323508
申请日：2005-12-29
申请人： Dal Sik Jang , Ki Nam Jung
发明人： Dal Sik Jang , Ki Nam Jung
IPC分类号： F04B49/00 , F15B11/16 , F16H61/40
CPC分类号： E02F9/2285 , E02F9/2232 , E02F9/2292 , E02F9/2296
摘要： A fluid pump control system for excavators enables fluid pumps to produce hydraulic flows of a quantity great enough to actuate hydraulic actuators for smooth composite operations. The system includes variable displacement fluid pumps, fluid quantity control mechanisms for controlling the discharge quantity of the respective fluid pumps, fluid quantity control signal lines respectively connected to the fluid quantity control mechanisms, signal pressure control lines for bringing the fluid quantity control signal lines into connection with a fluid tank to drop the fluid quantity control signal pressures within the fluid quantity control signal lines, and a plurality of cutoff valves attached to the signal pressure control lines in tandem and shiftable in concert with the shifting movement of spools of a control valve for increasing the fluid quantity control signal pressures within the signal pressure control lines in proportion to the shifting amounts of the cutoff valves.
摘要翻译：用于挖掘机的流体泵控制系统使得流体泵能够产生足够大的液压流量来致动液压致动器以实现平滑的复合操作。该系统包括可变排量流体泵，用于控制各个流体泵的排出量的流体量控制机构，分别连接到流体量控制机构的流体量控制信号线，用于使流体量控制信号线进入的信号压力控制线与流体箱连接以降低流体量控制信号线内的流体量控制信号压力，以及串联连接到信号压力控制线的多个截止阀，并且与控制阀的阀芯的移动运动相一致地移动用于与所述截止阀的换档量成比例地增加所述信号压力控制线内的流体量控制信号压力。

59. 发明申请

US20020157389A1 Hydraulic drive system 失效
标题翻译：液压驱动系统
公开(公告)号：US20020157389A1
公开(公告)日：2002-10-31
申请号：US09936283
申请日：2001-09-12
发明人： Yasutaka Tsuruga , Takashi Kanai , Junya Kawamoto , Satoshi Hamamoto , Yasuharu Okazaki , Yukiaki Nagao
IPC分类号： F16D031/02
CPC分类号： E02F9/226 , E02F9/2203 , E02F9/2232 , E02F9/2285 , E02F9/2296 , F15B11/163 , F15B2211/20553 , F15B2211/253 , F15B2211/30505 , F15B2211/30535 , F15B2211/3111 , F15B2211/351 , F15B2211/6054 , F15B2211/651 , F15B2211/71 , F15B2211/75
摘要： In a hydraulic drive system in which a target compensated differential pressure for each of pressure compensating valves 21a, 21b is set in accordance with a differential pressure between a pump delivery pressure and a maximum load pressure, and a target LS differential pressure is set as a variable value depending on a revolution speed of an engine 1, a fixed throttle 32 and a signal pressure variable relief valve 33 are disposed in a maximum load pressure line 35. A relief setting pressure PLMAXnull of the signal pressure variable relief valve 33 is set so as to satisfy PLMAXnullnullPRnullPGRnullnull (where null is a value smaller than PGR) with respect to a target LS differential pressure PGR and a setting pressure PR of the main relief valve 30. Even when a load pressure of any one actuator reaches the setting pressure of the main relief valve during the combined operation in which a plurality of actuators are simultaneously driven, pressure compensating valves are not closed, the other actuators are not sped up, and good operability in the combined operation can be ensured.
摘要翻译：在液压驱动系统中，根据泵输送压力和最大负载压力之间的压差设定压力补偿阀21a，21b中的每一个的目标补偿差压，并将目标LS压差设定为可变值取决于发动机1的转速，固定节气门32和信号压力可变溢流阀33设置在最大负载压力线35中。设置信号压力可变溢流阀33的释放设定压力PLMAX' 以便相对于目标LS差压PGR和主溢流阀30的设定压力PR满足PLMAX'= PR-PGR +α（其中α是小于PGR的值）。即使当任何一个执行器在组合操作期间达到主安全阀的设定压力，其中多个致动器同时被驱动，压力补偿阀不关闭，另一个致动器 rs不加速，可以确保组合操作的良好可操作性。

60. 发明授权

US5974796A Hydraulic circuit system for hydraulic working machine 失效
标题翻译：液压工程机液压回路系统
公开(公告)号：US5974796A
公开(公告)日：1999-11-02
申请号：US987709
申请日：1997-12-09
申请人： Kouji Ishikawa , Genroku Sugiyama , Tsukasa Toyooka , Tsuyoshi Nakamura
发明人： Kouji Ishikawa , Genroku Sugiyama , Tsukasa Toyooka , Tsuyoshi Nakamura
IPC分类号： F15B11/00 , E02F9/22 , F16D31/02
CPC分类号： E02F9/2225 , E02F9/2232 , E02F9/2235 , E02F9/2282 , E02F9/2285 , E02F9/2296
摘要： A regulator (20) comprises a servo piston 21 and a tilting control valve (22) which is made up of a spool (22a), a spring (22b), a control piston (22d) and a first pressure bearing chamber (22e). With these components, the regulator (20) controls a pump tilting such that a pump delivery rate is reduced as delivery pump pressure rises. The tilting control valve (22) also includes a second pressure bearing chamber (22f). When a gate-lock lever (31) is operated to switch over a lock valve (30), a flow control valve (6) is disabled from operating not to move even if a control lever (11a) is erroneously touched, and the machine is surely kept from coming into operation. At the same time, pilot primary pressure from a pilot pump (3) is introduced to the second pressure bearing chamber (22f) of the tilting control valve (22), causing the pump tilting to reduce down to a minimum tilting (q.sub.min). In the inoperative condition where the operator has no intention of carrying out work, it is thus possible to minimize the tilting of the hydraulic pump and reduce an energy loss.
摘要翻译：调节器（20）包括伺服活塞21和由阀芯（22a），弹簧（22b），控制活塞（22d）和第一压力承受室（22e）构成的倾转控制阀（22）。利用这些部件，调节器（20）控制泵倾斜，使得当输送泵压力升高时泵输送速率降低。倾斜控制阀（22）还包括第二承压室（22f）。当操作闸门（31）以切换锁定阀（30）时，即使控制杆（11a）被错误地接触，流量控制阀（6）也不能运行而不移动，并且机器一定不会运作。同时，将来自先导泵（3）的先导一次压力引入倾斜控制阀（22）的第二压力承受室（22f），使得泵倾斜减小到最小倾斜（qmin）。在操作者无意进行工作的不工作状态下，能够使液压泵的倾斜最小化，能够减少能量损失。

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