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81. 发明授权

US07216662B2 Flow control apparatus 失效
标题翻译：流量控制装置
公开(公告)号：US07216662B2
公开(公告)日：2007-05-15
申请号：US11067673
申请日：2005-03-01
申请人： Noriyuki Okamoto
发明人： Noriyuki Okamoto
IPC分类号： G05D7/01
CPC分类号： G05D7/014 , B62D5/062 , F15B11/0423 , F15B13/0403 , F15B2211/40515 , F15B2211/40553 , F15B2211/45 , F15B2211/455 , Y10T137/2579 , Y10T137/2584 , Y10T137/2589 , Y10T137/2615
摘要： In a flow control apparatus, a fluid pressure is introduced from downstream of a metering orifice to a rear room of a spool while a relief valve in the spool is assembled in advance. A front section of a relief valve sub-assembly is press fitted to a hole provided on the spool and is opening to rear room of the spool so that a receiving room of a valve body in a relief valve casing communicates to a bypass path. A communicating path provided in a rod communicates to the rear room of the spool through outside of the relief valve sub-assembly. The relief valve casing is received in a receiving hole provided in the spool and a cylindrical room between the relief valve casing and the receiving room is used as a part of a communicating path.
摘要翻译：在流量控制装置中，将流量压力从计量孔的下游引入到阀芯的后室，同时事先组装阀芯中的溢流阀。安全阀子组件的前部被压配合到设置在阀芯上的孔，并且是阀芯的后向室，使得安全阀壳体中的阀体的接收室与旁路通路。设置在杆中的连通路径通过安全阀子组件的外部连通到卷轴的后室。安全阀壳体容纳在设置在卷轴中的容纳孔中，并且在安全阀壳体和接收室之间的圆柱形室被用作连通路径的一部分。

82. 发明申请

US20050194043A1 Flow control apparatus 失效
标题翻译：流量控制装置
公开(公告)号：US20050194043A1
公开(公告)日：2005-09-08
申请号：US11067673
申请日：2005-03-01
申请人： Noriyuki Okamoto
发明人： Noriyuki Okamoto
IPC分类号： F16K17/04 , G05D7/01
CPC分类号： G05D7/014 , B62D5/062 , F15B11/0423 , F15B13/0403 , F15B2211/40515 , F15B2211/40553 , F15B2211/45 , F15B2211/455 , Y10T137/2579 , Y10T137/2584 , Y10T137/2589 , Y10T137/2615
摘要： In a flow control apparatus, a fluid pressure is introduced from downstream of a metering orifice to a rear room of a spool while a relief valve in the spool is assembled in advance. A front section of a relief valve sub-assembly is press fitted to a hole provided on the spool and is opening to rear room of the spool so that a receiving room of a valve body in a relief valve casing communicates to a bypass path. A communicating path provided in a rod communicates to the rear room of the spool through outside of the relief valve sub-assembly. The relief valve casing is received in a receiving hole provided in the spool and a cylindrical room between the relief valve casing and the receiving room is used as a part of a communicating path.
摘要翻译：在流量控制装置中，将流量压力从计量孔的下游引入到阀芯的后室，同时事先组装阀芯中的溢流阀。安全阀子组件的前部被压配合到设置在阀芯上的孔，并且是阀芯的后向室，使得安全阀壳体中的阀体的接收室与旁路通路。设置在杆中的连通路径通过安全阀子组件的外部连通到卷轴的后室。安全阀壳体容纳在设置在卷轴中的容纳孔中，并且在安全阀壳体和接收室之间的圆柱形室被用作连通路径的一部分。

83. 发明授权

US06922923B2 Change-over valve for boom cylinder of excavating/slewing work truck 失效
标题翻译：挖掘/回转作业车吊杆液压翻转阀
公开(公告)号：US06922923B2
公开(公告)日：2005-08-02
申请号：US10433842
申请日：2001-11-29
申请人： Masami Kondou
发明人： Masami Kondou
IPC分类号： E02F9/22 , F15B11/00 , F15B11/042 , F15B11/044 , F15B13/04 , G05D7/01
CPC分类号： E02F9/2267 , E02F9/2239 , E02F9/226 , E02F9/2271 , E02F9/2292 , F15B11/042 , F15B11/044 , F15B13/0403 , F15B2211/20576 , F15B2211/30505 , F15B2211/30515 , F15B2211/30525 , F15B2211/3116 , F15B2211/3127 , F15B2211/3138 , F15B2211/324 , F15B2211/329 , F15B2211/351 , F15B2211/353 , F15B2211/50536 , F15B2211/5059 , F15B2211/5151 , F15B2211/55 , F15B2211/7053 , F15B2211/7058
摘要： In an excavating/slewing work truck, the boom falls freely at the time of lowering operation without requiring any power but the flow rate of a pump increases excessively when the speed is balanced with other acutuators and power loss is inevitable for enhancing the operability. In order to eliminate this inconvenience, a first oil path (41) connecting a bottom side cylinder port (CB) and a tank port (T2), a second oil path (42) connecting a pump port (P2) and a rod side cylinder port (CR), and a third oil path (43) connecting a pump port (P1) and a tank port (T1) are provided, respectively, with first, second and third restrictors (61), (62) and (63) at the boom down position of a change-over valve (51) for the boom cylinder of an excavating/slewing work truck, wherein the first restrictor (61) restricts by such an amount as the work machine lowers gravitationally an the second restrictor (62) restricts by such an amount as the pressure on the boom side is not exceeded.
摘要翻译：在挖掘/回转工作车辆中，在降低作业时，吊臂自由下降，而不需要任何动力，但是当速度与其他导引器平衡时，泵的流量过大，因此为了提高操作性而不可避免地发生功率损失。为了消除这种不便，连接底侧气缸端口（CB）和油箱口（T 2）的第一油路（41），连接泵口（P 2）和杆（P 2）的第二油路分别与第一，第二和第三限流器（61），（62）分别设置连接泵口（P 1）和罐口（T 1）的第三油路（43）和（63）在挖掘/回转作业车辆的动臂缸的转换阀（51）的悬臂下降位置处，其中，第一限制器（61）限制在工作机械的重力下降，第二限制器（62）限制不超过悬臂侧的压力的量。

84. 发明授权

US06412392B1 Hydraulic valve for a hydraulic consumer of a vehicle 失效
标题翻译：用于车辆液压消费者的液压阀
公开(公告)号：US06412392B1
公开(公告)日：2002-07-02
申请号：US09497436
申请日：2000-02-03
申请人： Ebinger Günter , Homm Manfred
发明人： Ebinger Günter , Homm Manfred
IPC分类号： F15B13042
CPC分类号： F15B13/0403 , F15B13/0402 , F15B13/042 , F16D25/14 , F16D48/02 , F16D2048/0209 , F16H2061/0253 , Y10T137/8663
摘要： A hydraulic valve having a kinked characteristic curve is provided for a hydraulic consumer of a motor vehicle.
摘要翻译：为机动车辆的液压消耗者提供具有扭结特性曲线的液压阀。

85. 发明授权

US5862831A Variable-regeneration directional control valve for construction vehicles 失效
标题翻译：施工车辆可变再生方向控制阀
公开(公告)号：US5862831A
公开(公告)日：1999-01-26
申请号：US762989
申请日：1996-12-10
申请人： Tae Seung Chung , Yang Goo Lee
发明人： Tae Seung Chung , Yang Goo Lee
IPC分类号： E02F9/22 , F15B11/024 , F15B13/02 , F16K15/00 , F15B13/04
CPC分类号： F15B13/0403 , F15B11/024 , F15B13/021 , F15B2011/0243 , F15B2011/0246 , F15B2211/3055 , F15B2211/3116 , F15B2211/3133 , F15B2211/3144 , F15B2211/31576 , F15B2211/329 , F15B2211/35 , F15B2211/355 , Y10T137/87241
摘要： A variable-regeneration directional control valve for construction vehicles is disclosed. The control valve has a pressure control means for controlling the opposite pressure caused by elasticity of a valve spring. The opposite pressure acts on one end of a regeneration switching spool, while a self pressure (hydraulic pressure of pressurized fluid output from a pump) acts on the other end of the regeneration switching spool and thereby moves the spool. In the preferred embodiment, the means is a pressure control piston, which is provided on the end of the valve spring. The pressure control piston receives an outside control signal through an electronic proportional control valve and thereby continuously moves. The electronic proportional control valve outputs pressurized fluid in proportion to a current amount of the outside control signal.
摘要翻译：公开了一种用于工程车辆的可变再生方向控制阀。控制阀具有用于控制由弹簧弹性引起的相反压力的压力控制装置。相反的压力作用在再生切换阀芯的一端，而自压（从泵输出的加压流体的液压）作用在再生切换阀芯的另一端，从而使阀芯移动。在优选实施例中，装置是设置在阀弹簧的端部上的压力控制活塞。压力控制活塞通过电子比例控制阀接收外部控制信号，从而连续移动。电子比例控制阀与外部控制信号的当前量成比例地输出加压流体。

86. 发明授权

US5615705A Control valve for heavy construction equipment having regeneration function 失效
标题翻译：具有再生功能的重型施工设备的控制阀
公开(公告)号：US5615705A
公开(公告)日：1997-04-01
申请号：US497125
申请日：1995-06-30
申请人： Hyung J. Cho
发明人： Hyung J. Cho
IPC分类号： E02F9/22 , F15B11/02 , F15B11/024 , F15B13/02 , F15B13/04
CPC分类号： F15B13/0403 , E02F9/2217 , E02F9/226 , F15B13/021 , F15B2011/0246 , Y10T137/86702 , Y10T137/87241
摘要： A control valve having a regeneration function, including a hollow valve body, a plurality of spaced ports provided at the valve body, the ports including a pump port, an actuator port, a regeneration port and a tank port, a hollow main spool movably disposed in the valve body, a regeneration spool movably disposed in the main spool and adapted to be moved by a flow of fluid delivered from a pump through the pump port, a fluid passage provided at the main spool and adapted to communicate the actuator port and the tank port together, the fluid passage being opened or closed by the movement of the regeneration spool, whereby as the regeneration spool is moved by the fluid flow delivered from the pump, a part, to be fed to the tank port, of a flow of fluid emerging from the actuator port is increased, while a part to be fed to the regeneration port is correspondingly decreased.
摘要翻译：具有再生功能的控制阀，包括中空阀体，设置在阀体上的多个间隔开的端口，所述端口包括泵口，致动器端口，再生口和罐口，中空主阀芯，可移动地设置在所述阀体中，所述再生阀芯可移动地设置在所述主阀芯中并且适于通过泵从所述泵口输送的流体流动移动;流体通道，设置在所述主阀芯处，并且适于使所述致动器端口和油箱口一起通过再生阀芯的运动而打开或关闭流体通道，由此当再生阀芯通过从泵输送的流体流移动时，要供给到储罐端口的部分流入从致动器端口出来的流体增加，而被供给到再生口的部分相应减少。

87. 发明授权

US5446979A Hydraulic circuit system for civil engineering and construction machines 失效
公开(公告)号：US5446979A
公开(公告)日：1995-09-05
申请号：US142366
申请日：1993-11-22
申请人： Genroku Sugiyama , Toichi Hirata
发明人： Genroku Sugiyama , Toichi Hirata
IPC分类号： E02F9/22 , F15B11/16 , F15B11/17 , F15B13/04 , G05D1/02
CPC分类号： F15B13/0403 , E02F9/2232 , E02F9/2239 , E02F9/2282 , E02F9/2292 , E02F9/2296 , F15B11/161 , F15B11/17 , F15B13/0418 , F15B2211/20553 , F15B2211/20576 , F15B2211/30555 , F15B2211/3116 , F15B2211/3127 , F15B2211/329 , F15B2211/351 , F15B2211/365 , F15B2211/40515 , F15B2211/428 , F15B2211/45 , F15B2211/6054 , F15B2211/6057 , F15B2211/6355 , F15B2211/7058 , F15B2211/7142 , F15B2211/78
摘要： The hydraulic circuit system for civil engineering and construction machines includes a first pressure adjusting device (130) arranged between first variable restrictors (107, 107a) of a left traveling directional control valve (47) and a first traveling motor (57) for controlling the pressure downstream of the first variable restrictors to a value corresponding to a first signal pressure and a second pressure adjusting device (133) arranged between second variable restrictors (108, 108a) of a right traveling directional control valve (49) and a second traveling motor (58) for controlling the pressure downstream of the second variable restrictors to a value corresponding to a second signal pressure. A shuttle valve (136) detects a higher one of load pressures of the first and second traveling motors as a maximum load pressure. When performing the combined operation in which the first and second traveling motors are driven with at least one of a plurality of working actuators (53-56) simultaneously, signal selection valves (131, 135, 170) are actuated so as to supply the maximum load pressure to the first and second pressure adjusting devices as the first and second signal pressures. Consequently, in a combined operation of traveling and performing other works, a communication circuit (110) is activated along with the operation of a working actuator whereby even if a hydraulic fluid supply circuit (104) of the second traveling directional control valve communicates with a hydraulic fluid supply circuit (103) of a first traveling directional control valve, the differential pressures across the first and second variable restrictors become almost the same, thereby achieving a stable straight traveling.

88. 发明授权

US4738279A Multiway valves with load feedback 失效
标题翻译：带有负载反馈的多路阀
公开(公告)号：US4738279A
公开(公告)日：1988-04-19
申请号：US937706
申请日：1986-12-04
申请人： Walter Kropp
发明人： Walter Kropp
IPC分类号： F15B11/00 , F15B13/04 , F16K11/07 , F15B13/02
CPC分类号： F15B13/0403 , F15B13/0418 , Y10T137/86702 , Y10T137/87169
摘要： A multiway valve is provided having a load feedback wherein a pressure-reducing element that reduces the pressure conveyed to a connection through the valve with a control pressure signal line is controlled as a function of the displacement of a valve piston in the multiway valve.
摘要翻译：提供具有负载反馈的多通阀，其中通过控制压力信号线减小输送到通过阀的连接的压力的减压元件作为多孔阀中的阀活塞的位移的函数来控制。

89. 发明授权

US4719753A Slide valve for load sensing control in a hydraulic system 失效
标题翻译：液压系统用于负载传感控制的滑阀
公开(公告)号：US4719753A
公开(公告)日：1988-01-19
申请号：US832122
申请日：1986-02-20
申请人： Walter Kropp
发明人： Walter Kropp
IPC分类号： F15B13/04 , F16D31/02
CPC分类号： F15B13/0403 , F15B13/0418
摘要： A hydraulic or the like drive system which can include a variable-speed pump with at least one control element. The control element can be connected to a pump control piston arranged in a pump control cylinder, the position of which is determined by a control pressure. The drive system can further include a conveying conduit connected to the pump and a return conduit which leads to the respective reservoir, and can furthermore include control elements, with the conduit emanating from the pump are connected--by intervention of a respective branch line--several demand points which respectively can be connected to the conveying conduit by means of an in the respective branch line arranged, randomly movable valve. The valve has two auxiliary pistons arranged in the main piston of the valve and each auxiliary piston houses a reversing piston.
摘要翻译：液压等驱动系统，其可包括具有至少一个控制元件的变速泵。控制元件可以连接到布置在泵控制缸中的泵控制活塞，其位置由控制压力决定。驱动系统还可以包括连接到泵的输送管道和通向相应储存器的回流管道，并且还可以包括控制元件，其中从泵发出的管道通过相应的分支管线要求点分别可以通过在相应的分支管线中连接到输送管道，布置成可随机移动的阀。该阀具有布置在阀的主活塞中的两个辅助活塞，并且每个辅助活塞容纳反向活塞。

90. 发明授权

US4643225A Pressure regulating valve 失效
标题翻译：调压阀
公开(公告)号：US4643225A
公开(公告)日：1987-02-17
申请号：US705193
申请日：1985-02-25
申请人： Rainer Imhof
发明人： Rainer Imhof
IPC分类号： F15B11/028 , F15B13/04 , F15B13/044 , G05D16/10
CPC分类号： F15B13/0403 , F15B13/0402 , F15B13/044 , G05D16/10 , Y10T137/86614 , Y10T137/86622 , Y10T137/87217
摘要： A proportional solenoid operated pressure regulating valve is disclosed. First and second metering spools are respectively mounted for movement inside first and second control spools. Each metering spool responds to a fluid pressure being controlled at a respective operating port.
摘要翻译：公开了一种比例电磁操作压力调节阀。第一和第二计量阀芯分别安装用于在第一和第二控制线轴内移动。每个计量阀芯响应于在相应操作口处被控制的流体压力。

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