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41. 发明公开

EP0777056A1 DIRECTIONAL CONTROL VALVE 失效
标题翻译： VERTEILER
公开(公告)号：EP0777056A1
公开(公告)日：1997-06-04
申请号：EP95927963.9
申请日：1995-08-03
申请人： KOMATSU LTD.
发明人： ISHIZAKI, Naoki, Oyama Factory of Kabushiki Kaisha , TAKANO, Toshiro, Oyama Factory of Kabushiki Kaisha
IPC分类号： F15B11/024 , F15B11/04 , F15B11/08
CPC分类号： F15B13/021 , F15B11/024 , F15B11/123 , F15B2211/30525 , F15B2211/3133 , F15B2211/35 , Y10T137/86606 , Y10T137/8663
摘要： The invention relates to a directional control valve which comprises a first actuator port connected to a lifting side chamber of a cylinder of a working machine, a second actuator port connected to a lowering side chamber of the cylinder of the working machine, a regeneration passage for alloying the second actuator port communicate with a regeneration port through a check valve, and a main spool adapted to move in one direction to thereby supply a pressure oil to the second actuator port and to allow the first actuator port to communicate with a tank port and the regeneration port. The directional control valve is characterized in the provision of a switching means for switching a maximum distance of movement of the main spool in one direction in a plurality of stages.
摘要翻译：本发明涉及一种方向控制阀，其包括连接到作业机的气缸的提升侧室的第一致动器端口，连接到工作机的气缸的下降侧室的第二致动器端口，再生通道，合金化第二致动器端口通过止回阀与再生端口连通，以及主阀芯，其适于在一个方向上移动，从而向第二致动器端口提供压力油，并允许第一致动器端口与罐口连通，再生口。方向控制阀的特征在于提供一种切换装置，用于在多个阶段中在一个方向上切换主卷轴的最大移动距离。

42. 发明授权

EP0270523B1 Hydraulic valve arrangement 有权
标题翻译：液压阀安装
公开(公告)号：EP0270523B1
公开(公告)日：1993-03-31
申请号：EP88100002.0
申请日：1982-09-27
申请人： Andersson, Bo
发明人： Andersson, Bo
IPC分类号： F15B13/042
CPC分类号： F15B11/006 , F15B13/0405 , F15B2211/20546 , F15B2211/30505 , F15B2211/30575 , F15B2211/3127 , F15B2211/3133 , F15B2211/324 , F15B2211/329 , F15B2211/35 , F15B2211/365 , F15B2211/45 , Y10T137/86582 , Y10T137/87193 , Y10T137/87201

43. 发明公开

EP0079870A3 Hydraulic valve means 有权
标题翻译：液压阀
公开(公告)号：EP0079870A3
公开(公告)日：1984-03-28
申请号：EP82850189
申请日：1982-09-27
申请人： Andersson, Bo
发明人： Andersson, Bo
IPC分类号： F15B13/042
CPC分类号： F15B11/006 , F15B13/0405 , F15B2211/20546 , F15B2211/30505 , F15B2211/30575 , F15B2211/3127 , F15B2211/3133 , F15B2211/324 , F15B2211/329 , F15B2211/35 , F15B2211/365 , F15B2211/45 , Y10T137/86582 , Y10T137/87193 , Y10T137/87201
摘要： A valve means for controlling a linear or rotary hydraulic motor, which is connected to a pump (P) acting as pressure medium source via the valve means, and to a tank (T) either directly or via a valve means. Known valve means of this kind comprise valves with valve slides, which control both the supply of pressure medium to the motor and the return flow from the same. These valves, however, do not always satisfy the demand in question, owing to internal leakage which, for example, implies that a linear motor is caused to carry out undesired movements. The present valve means, however, comprises at least one seat valve (C) located in a main flow connection between the pump (P) and one port (A) of the motor, where each seat valve (C) for adjusting the flow in the main flow connection to the motor (1) is controlled by a pilot flow, which is adjustable by a pilot valve (E) and originates from the main flow through the seat valve (C), and which after the pilot valve (E) returns to the main flow at a point after the seat valve (C), seen in the flow direction.
摘要翻译：用于控制线性或旋转液压马达的阀装置，其通过阀装置连接到用作压力介质源的泵（P），或直接地或经由阀装置连接到罐（T）。已知的这种阀装置包括具有阀滑块的阀，其控制对电动机的压力介质的供应和来自其的回流。然而，这些阀并不总是满足所要求的要求，这是由于内部泄漏，例如意味着使线性电动机产生不期望的运动。然而，当前阀装置包括位于泵（P）和马达的一个端口（A）之间的主流动连接中的至少一个座阀（C），其中每个座阀（C）用于调节与电动机（1）的主要流动连接由先导阀控制，先导阀可由先导阀（E）调节，并通过座阀（C）来自主流，并且在先导阀（E）在流动方向上看到座阀（C）之后的一点处返回到主流。

44. 发明公开

EP2876306A4 FLOW CONTROL VALVE FOR CONSTRUCTION MACHINERY 有权
公开(公告)号：EP2876306A4
公开(公告)日：2016-05-25
申请号：EP12881324
申请日：2012-07-19
申请人： VOLVO CONSTR EQUIP AB
发明人： KIM JIN-WOOK
IPC分类号： F15B13/043 , E02F9/22 , F15B13/02 , F16K11/07
CPC分类号： F15B11/024 , E02F9/2267 , F15B11/0406 , F15B11/0426 , F15B13/021 , F15B13/0403 , F15B2211/205 , F15B2211/20576 , F15B2211/30565 , F15B2211/3133 , F15B2211/31582 , F15B2211/355 , F16K11/07 , Y10T137/87193
摘要： Disclosed is a flow control valve for construction machinery, the flow control valve being adapted to reduce pressure loss due to flow on return to a hydraulic tank during the boom-down operation of a large-scale excavator. The flow control valve for construction machinery according to the present invention comprises: first and second boom spools which are respectively coupled to first and second boom valve blocks, and which regulate working fluid that is respectively supplied from first and second hydraulic pumps to a boom cylinder during direction reversal; a boom-up flow-adjusting means which, in direction reversal of the first and second boom spools for boom-up drive, supplies working fluid from the first and second hydraulic pumps into a large chamber of the boom cylinder via the first and second boom spools respectively, and causes part of the flow of working fluid from the second hydraulic pump to pass via the second boom spool so as to be combined with working fluid being supplied from the first hydraulic pump to the large chamber of the boom cylinder due to direction reversal of the first boom spool; and a boom-down flow-adjusting means which, in direction reversal of the first and second boom spools for boom-down drive, causes part of the flow of working fluid coming back from the large chamber of the boom cylinder to return to the hydraulic tank via the first and second boom spools respectively, and causes part of the flow of working fluid coming back from the large chamber of the boom cylinder to combine as respective regenerative flows for working fluid on the small chamber side of the boom cylinder.

45. 发明公开

EP2772653A4 CONTROL SYSTEM FOR OPERATING WORK DEVICE FOR CONSTRUCTION MACHINE 审中-公开
标题翻译：控制系统运行的工作装置用于建筑机械
公开(公告)号：EP2772653A4
公开(公告)日：2015-10-21
申请号：EP11873593
申请日：2011-10-07
申请人： VOLVO CONSTR EQUIP AB
发明人： JOUNG HEA-GYOON , SONG YOUNG-BOG
IPC分类号： F15B13/043 , E02F9/22 , F15B11/17 , F15B13/02
CPC分类号： E02F9/22 , E02F3/42 , E02F9/123 , E02F9/2217 , E02F9/2225 , E02F9/2267 , E02F9/2282 , E02F9/2285 , E02F9/2292 , F15B11/17 , F15B2211/20546 , F15B2211/20576 , F15B2211/3116 , F15B2211/3133

46. 发明公开

EP2764254A4 HYDRAULIC SYSTEM BI-DIRECTIONAL REGENERATION 审中-公开
标题翻译：液压系统的双向再生
公开(公告)号：EP2764254A4
公开(公告)日：2015-08-12
申请号：EP12838988
申请日：2012-10-02
申请人： CATERPILLAR INC
发明人： SEFCIK EDWIN
IPC分类号： F15B13/02 , E02F9/22 , F15B19/00
CPC分类号： F15B11/024 , F15B15/1466 , F15B15/149 , F15B2211/3133 , F15B2211/7055 , Y10T29/494

47. 发明公开

EP2876306A1 FLOW CONTROL VALVE FOR CONSTRUCTION MACHINERY 有权
标题翻译： DURCHFLUSSREGELVENTILFÜREINE BAUMASCHINE
公开(公告)号：EP2876306A1
公开(公告)日：2015-05-27
申请号：EP12881324.3
申请日：2012-07-19
申请人： Volvo Construction Equipment AB
发明人： KIM, Jin-Wook
IPC分类号： F15B13/043 , E02F9/22 , F16K11/07 , F15B13/02
CPC分类号： F15B11/024 , E02F9/2267 , F15B11/0406 , F15B11/0426 , F15B13/021 , F15B13/0403 , F15B2211/205 , F15B2211/20576 , F15B2211/30565 , F15B2211/3133 , F15B2211/31582 , F15B2211/355 , F16K11/07 , Y10T137/87193
摘要： Disclosed is a flow control valve for construction machinery, the flow control valve being adapted to reduce pressure loss due to flow on return to a hydraulic tank during the boom-down operation of a large-scale excavator. The flow control valve for construction machinery according to the present invention comprises: first and second boom spools which are respectively coupled to first and second boom valve blocks, and which regulate working fluid that is respectively supplied from first and second hydraulic pumps to a boom cylinder during direction reversal; a boom-up flow-adjusting means which, in direction reversal of the first and second boom spools for boom-up drive, supplies working fluid from the first and second hydraulic pumps into a large chamber of the boom cylinder via the first and second boom spools respectively, and causes part of the flow of working fluid from the second hydraulic pump to pass via the second boom spool so as to be combined with working fluid being supplied from the first hydraulic pump to the large chamber of the boom cylinder due to direction reversal of the first boom spool; and a boom-down flow-adjusting means which, in direction reversal of the first and second boom spools for boom-down drive, causes part of the flow of working fluid coming back from the large chamber of the boom cylinder to return to the hydraulic tank via the first and second boom spools respectively, and causes part of the flow of working fluid coming back from the large chamber of the boom cylinder to combine as respective regenerative flows for working fluid on the small chamber side of the boom cylinder.
摘要翻译：公开了一种用于工程机械的流量控制阀，该流量控制阀适于在大型挖掘机的动臂下降操作期间减少由于返回到液压油箱时的流量而导致的压力损失。根据本发明的用于工程机械的流量控制阀包括：分别联接到第一和第二悬臂阀块的第一和第二悬臂线轴，并且将分别从第一和第二液压泵供给的工作流体调节到动臂缸在方向反转时一个动臂上升流量调节装置，其在第一和第二悬臂上升驱动的起重臂的方向反转中，通过第一和第二起重臂将来自第一和第二液压泵的工作流体供应到动臂缸的大腔室中并且使得来自第二液压泵的工作流体的一部分流动经由第二起重臂线轴通过，以便与由第一液压泵供给到动臂缸的大腔的工作流体相结合，因为方向反转第一个吊杆; 以及动臂下降流量调节装置，其在第一和第二动臂用于动臂下降驱动的方向反向时，使得从动臂缸的大腔返回的工作流体的一部分流动返回到液压并且使得从动臂缸的大腔返回的工作流体的一部分流动被组合为在动臂缸的小室侧上的工作流体的各自的再生流。

48. 发明授权

EP2243991B1 Ventil und hydraulische Steueranordnung 有权
标题翻译：阀和液压控制装置
公开(公告)号：EP2243991B1
公开(公告)日：2015-01-07
申请号：EP10008363.3
申请日：2007-04-26
申请人： Robert Bosch GmbH
发明人： Behl, Helmut , Chmiel, Marek , Englert, Holger , Dantlgraber, Jörg
IPC分类号： F16K31/124 , F16K31/163 , B22D17/32
CPC分类号： F15B11/044 , B22D17/32 , F15B11/024 , F15B2211/20538 , F15B2211/20576 , F15B2211/30505 , F15B2211/3054 , F15B2211/3111 , F15B2211/3133 , F15B2211/327 , F15B2211/40507 , F15B2211/40515 , F15B2211/41509 , F15B2211/41527 , F15B2211/428 , F15B2211/45 , F15B2211/46 , F15B2211/50518 , F15B2211/555 , F15B2211/634 , F15B2211/6355 , F15B2211/7053 , F15B2211/75 , F16K31/124 , F16K31/163

49. 发明公开

EP2103747A4 HYDRAULIC DRIVE DEVICE FOR HYDRAULIC EXCAVATOR 有权
标题翻译：液压驱动系统液压挖掘机工作
公开(公告)号：EP2103747A4
公开(公告)日：2014-12-17
申请号：EP07850721
申请日：2007-12-17
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： NAKAMURA KAZUNORI
IPC分类号： E02F9/22 , E02F3/43 , F15B11/17 , F15B21/14
CPC分类号： F15B21/14 , E02F3/437 , E02F9/2217 , E02F9/2296 , F15B2211/20546 , F15B2211/3133 , F15B2211/31588 , F15B2211/329 , F15B2211/88

50. 发明公开

EP2772653A1 CONTROL SYSTEM FOR OPERATING WORK DEVICE FOR CONSTRUCTION MACHINE 审中-公开
标题翻译： STEUERUNGSSYSTEM ZUM BETRIEB EINER ARBEITSVORRICHTUNGFÜREINE BAUMASCHINE
公开(公告)号：EP2772653A1
公开(公告)日：2014-09-03
申请号：EP11873593.5
申请日：2011-10-07
申请人： Volvo Construction Equipment AB
发明人： JOUNG, Hea-Gyoon , SONG, Young-Bog
IPC分类号： F15B13/043 , E02F9/22 , F15B13/02
CPC分类号： E02F9/22 , E02F3/42 , E02F9/123 , E02F9/2217 , E02F9/2225 , E02F9/2267 , E02F9/2282 , E02F9/2285 , E02F9/2292 , F15B11/17 , F15B2211/20546 , F15B2211/20576 , F15B2211/3116 , F15B2211/3133
摘要： Disclosed is a control system for controlling flow so as to allow simultaneous usage of a parallel flow path and a tandem flow path thereby reducing loss of pressure inside a control valve, when simultaneously operating work devices having different operating pressures. A control system for operating the work device, according to the present invention, provides the control system for operating the work device for a construction machine, comprising: first and second hydraulic pumps that are connected to an engine; a revolution control valve, an arm control valve, and a left driving control valve, which are installed on a first center bypass path of the first hydraulic pump, and each of which is connected via the parallel flow path; a boom control valve, a bucket control valve, and a right driving valve, which are installed on a second center bypass path of the second hydraulic pump, and each of which is connected via the parallel flow path; a pressure generation device; a bleed flow path, which is formed on a control spool at a lower side of a boom of the boom control valve, for maintaining an open state of the second center bypass path without closing same, when the boom control valve is switched so as to lower the boom; and a center bypass switch valve, which is installed on the lowermost side of the second center bypass path and is switched by means of a control signal for switching the boom control valve.
摘要翻译：公开了一种用于控制流动的控制系统，以便当同时操作具有不同操作压力的工作装置时，允许同时使用并联流动路径和串联流动路径，从而减少控制阀内部的压力损失。根据本发明的用于操作工作装置的控制系统提供了用于操作建筑机械的作业装置的控制系统，包括：连接到发动机的第一和第二液压泵; 旋转控制阀，臂控制阀和左驱动控制阀，其安装在第一液压泵的第一中心旁路上，并且各自经由并联流路连接; 悬臂控制阀，铲斗控制阀和右驱动阀，其安装在第二液压泵的第二中心旁路上，并且各自经由并联流路连接; 压力发生装置; 排气流路，其形成在动臂控制阀的动臂的下侧的控制阀芯上，用于保持第二中心旁通路径的打开状态而不关闭，当动臂控制阀被切换时，降低繁荣以及中心旁路切换阀，其安装在第二中心旁路路径的最下侧，并且通过用于切换悬臂控制阀的控制信号而切换。

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