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31. 发明公开

EP2123594A1 Industrial lift truck with speed control 审中-公开
标题翻译：工业品出版社，Geschwindigkeitssteuerung
公开(公告)号：EP2123594A1
公开(公告)日：2009-11-25
申请号：EP08156829.7
申请日：2008-05-23
申请人： BT Products AB
发明人： Arnsby, Mattias
IPC分类号： B66F9/075 , B66F9/08 , B66F9/22 , B66F9/24 , F15B11/05
CPC分类号： B66F9/08 , B66F9/0755 , B66F9/22 , F15B2211/20546 , F15B2211/6336 , F15B2211/6346 , F15B2211/6652 , F15B2211/6656
摘要： The present invention relates to industrial lift truck (1), comprising: a lifting frame having a vertically movable load lifting device (9), a hydraulic cylinder assembly (11) for driving the load lifting device (9), a variable hydraulic pump (17) for supplying hydraulic fluid to the hydraulic cylinder assembly (11), a variable hydraulic valve assembly (19a-b) arranged for controlling the hydraulic fluid supplied to/drained from the hydraulic cylinder assembly (11), a position measuring assembly (25a-b) for measuring vertical positions of the load lifting device (9) with respect to the lifting frame, an operator input device (31) for choosing an operation mode of the load lifting device (9), a controller (33) comprising: means for calculating the actual speed of the load lifting device (9) based on the vertical position measurements, means for generating a set point speed of the load lifting device (9) based on the chosen operation mode, and means (37) for comparing the calculated actual speed with the set point speed, The controller (33) is characterised in that it comprises means for determining any differences between the calculated actual speed and the set point speed, and means (39) for sending signals to the hydraulic pump to change its speed, and/or signals to the hydraulic valve assembly (19a-b) to change its valve opening degree, if a difference exist between the calculated actual speed and the set point speed of the load lifting device (9), so as to compensate for the difference.
摘要翻译：技术领域本发明涉及工业升降车（1），其包括：具有可垂直移动的负载提升装置（9）的提升架，用于驱动负载提升装置（9）的液压缸组件（11），可变液压泵 17），用于向液压缸组件（11）供应液压流体;可变液压阀组件（19a-b），布置成用于控制从液压缸组件（11）供应/排出的液压流体;位置测量组件 b），用于测量所述负载提升装置（9）相对于所述提升架的垂直位置，用于选择所述负载提升装置（9）的操作模式的操作者输入装置（31）;控制器（33），包括：用于基于垂直位置测量计算负载提升装置（9）的实际速度的装置，用于基于所选择的操作模式产生负载提升装置（9）的设定点速度的装置，以及用于比较的装置（37）计算的致动器控制器（33）的特征在于它包括用于确定计算出的实际速度和设定点速度之间的任何差异的装置，以及用于将信号发送到液压泵以改变其设定点速度的装置速度和/或信号到液压阀组件（19a-b）以改变其开度，如果计算出的实际速度与负载提升装置（9）的设定点速度之间存在差异，以便补偿为了区别

32. 发明公开

EP1783378A3 Hydraulic load-sensing system for agricultural tractors 审中-公开
标题翻译：液压系统负载压力检测农用拖拉机
公开(公告)号：EP1783378A3
公开(公告)日：2008-05-28
申请号：EP06010453.6
申请日：2006-05-20
申请人： AGCO GmbH
发明人： Brockmann, Andreas , Martens, Michael
IPC分类号： F15B11/05
CPC分类号： F15B11/162 , F15B11/165 , F15B11/168 , F15B2211/20553 , F15B2211/253 , F15B2211/30535 , F15B2211/3144 , F15B2211/322 , F15B2211/327 , F15B2211/6054 , F15B2211/6058 , F15B2211/651 , F15B2211/653 , F15B2211/7053 , F15B2211/7058 , F15B2211/7142
摘要： Disclosed is a hydraulic system for utility vehicles, in particular agricultural tractors, for supplying primary and/or auxiliary pressure medium consumers (6, 11, 12) with pressure medium, comprising a pump (1), whose pressure and flow are controlled as a function of the load pressure of the pressure medium consumers by a pressure and flow controller (13) to which whenever auxiliary pressure medium consumers (11, 12) are operating, a higher load pressure compared to the actual load pressure is reported through an amplifier device.
In order to obtain rapid response of an actuated auxiliary pressure medium consumer it is proposed that the amplifier device (29) consists of a proportionally controllable pressure reducing valve (39).

33. 发明公开

EP1875084A1 WEGEVENTIL UND DAMIT AUSGEFÜHRTE LS-STEUERANORDNUNG 有权
标题翻译：阀和所执行LS控制设备
公开(公告)号：EP1875084A1
公开(公告)日：2008-01-09
申请号：EP06722721.5
申请日：2006-03-30
申请人： Bosch Rexroth AG
发明人： LÖDIGE, Heinrich
IPC分类号： F15B13/02 , F15B13/04 , F15B13/043 , F15B13/01 , F15B11/00 , F15B11/05 , F15B11/024
CPC分类号： F15B11/05 , F15B11/003 , F15B11/024 , F15B13/01 , F15B13/021 , F15B13/0402 , F15B13/0417 , F15B13/0433
摘要： The invention relates to a direction control valve and an LS control system. The invention is characterized in that the directional control valve is configured with two coaxially disposed valve slides the adjacent faces of which are larger than rear control surfaces and that can be brought into direct contact with each other.

34. 发明公开

EP1764515A2 Hydraulic control system for heavy construction equipment 有权
标题翻译： HydrauliciksystemfürBaumaschinen
公开(公告)号：EP1764515A2
公开(公告)日：2007-03-21
申请号：EP06018431.4
申请日：2006-09-04
申请人： Volvo Construction Equipment Holding Sweden AB
发明人： Koo, Bon Seok
IPC分类号： F15B11/16 , E02F9/22 , F15B11/05
CPC分类号： E02F9/2232 , E02F9/2296 , F15B11/055 , F15B11/165 , F15B2211/20546 , F15B2211/20553 , F15B2211/255 , F15B2211/3116 , F15B2211/329
摘要： A hydraulic control system is disclosed, which can minimize the flow rate of a hydraulic fluid being discharged from a variable displacement hydraulic pump (102) by using pilot pressure constantly produced by a pilot pump (110) when a switching valve (120,122,124) is in a neutral position, and can adjust the flow rate of the hydraulic fluid being discharged from the variable displacement hydraulic pump by using pressure produced by a pressure generator (170) positioned at the most downstream side of a bypass passage (106) if a separate input signal is applied to the pressure generator when the switching valve is operated. The hydraulic control system includes a main variable displacement hydraulic pump (102), a pilot pump (110), a plurality of actuators, a switching valve (120,122,124) interposed between the main pump and the actuators, a load pressure signal passage for guiding a part of the hydraulic fluid to a tank (104) via the first flow control device (130), and a flow control device for the main pump installed on one side of the main pump to control the flow rate of the hydraulic fluid by adjusting the inclination angle of a swash plate in the main pump.
摘要翻译：公开了一种液压控制系统，其可以通过在切换阀（120,122,124）处于...时通过使用由先导泵（110）不断产生的先导压力来最小化从可变排量液压泵（102）排出的液压流体的流量中空位置，并且可以通过使用位于旁路通道（106）的最下游侧的压力发生器（170）产生的压力来调节从可变排量液压泵排出的液压流体的流量，如果单独的输入当切换阀操作时，信号被施加到压力发生器。液压控制系统包括主变量液压泵（102），先导泵（110），多个致动器，介于主泵和致动器之间的切换阀（120,122,124），负载压力信号通道，用于引导通过第一流量控制装置（130）将一部分液压流体输送到罐（104），以及用于主泵的流量控制装置，其安装在主泵的一侧，以通过调节液压流体来控制液压流体的流量主泵斜盘倾角。

35. 发明公开

EP1756465A1 A HYDRAULIC RESTRICTOR 有权
标题翻译： A型液压CHOKE
公开(公告)号：EP1756465A1
公开(公告)日：2007-02-28
申请号：EP05752658.4
申请日：2005-06-09
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： KNOWLES, James Grahame
IPC分类号： F16L55/027 , F15B11/05 , F16F15/00
CPC分类号： F16L55/02754 , Y10T137/7788
摘要： A hydraulic restrictor comprising: a passage (1) along which hydraulic fluid flows; a member (5) which extends along said passage, said member restricting the flow along the passage; and means (11) for selectively securing said member at a plurality of different positions along the passage thereby to enable variation in the restriction on flow along the passage, said securing means (11) securing said member at each said position by securing the member against the side wall of the passage.

36. 发明授权

EP1058010B1 HYDRAULIC DRIVE DEVICE 有权
标题翻译：液压驱动装置
公开(公告)号：EP1058010B1
公开(公告)日：2006-12-20
申请号：EP99961406.8
申请日：1999-12-27
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： TSURUGA, Yasutaka , KANAI, Takashi , KAWAMOTO, Junya , HAMAMOTO, Satoshi , OKAZAKI, Yasuharu , NAGAO, Yukiaki
IPC分类号： F15B11/05 , E02F9/22
CPC分类号： E02F9/2225 , E02F9/2207 , E02F9/2285 , E02F9/2296 , F15B11/0406 , F15B11/162 , F15B11/165 , F15B2211/20553 , F15B2211/20584 , F15B2211/255 , F15B2211/30505 , F15B2211/30535 , F15B2211/3111 , F15B2211/3144 , F15B2211/31576 , F15B2211/50527 , F15B2211/5153 , F15B2211/6054 , F15B2211/63 , F15B2211/6313 , F15B2211/6316 , F15B2211/7135
摘要： A hydraulic drive device including a swing control system capable of accelerating it to a stationary state without any jerky swing operation at the time of starting of the swing operation, providing high energy efficiency, forming a stable swing system, and preventing a cost and space from increasing due to provision of additional circuits or complicated problem with circuit configuration from occurring, wherein a pump control device (18) is installed so as to control a discharge flow so that a pump discharge pressure becomes higher by a specified value than the max. load pressures of actuators (2 to 6), pressure compensating valves (12 to 16) are formed so that pressure differences between the discharge pressure of a hydraulic pump (1) and the max. load pressures of the actuators (2 to 6) are set as target compensating pressure differences, respectively, a load dependent characteristic which reduces the target compensating pressure differences when a load pressure rises is provided to the pressure compensating valve (12) of a swing section, and the load dependent characteristic is set so that a flow characteristic simulating the HP constant control of a swing motor can be obtained.
摘要翻译：本发明提供一种液压驱动装置，该液压驱动装置具备：摆动控制系统，其能够在摆动动作开始时不晃动地进行摆动动作而加速至静止状态，能量效率高，形成稳定的摆动系统，并且能够防止成本和空间由于提供附加电路而增加或者出现电路构造的复杂问题，其中安装泵控制装置（18）以便控制排放流量，使得泵排放压力变得比最大值大规定值。致动器（2至6）的负荷压力，压力补偿阀（12至16）形成为使得液压泵（1）的排放压力与最大压力将致动器（2至6）的负载压力分别设定为目标补偿压力差，当负载压力升高时减小目标补偿压差的负载依赖特性被提供给摆动部分的压力补偿阀（12）并且负载依赖特性被设定为使得可以获得模拟回转马达的HP恒定控制的流量特性。

37. 发明授权

EP1331199B1 Steuervorrichtung, insbesondere für den Einsatz bei hydraulisch arbeitenden Hubeinrichtungen 有权
标题翻译：控制装置，特别是用于在液压操作提升装置使用
公开(公告)号：EP1331199B1
公开(公告)日：2006-09-13
申请号：EP02025356.3
申请日：2002-11-14
申请人： Hydac Fluidtechnik GmbH
发明人： Albert, Hermann , Bruck, Peter , Hoffmann, Alois
IPC分类号： B66F9/22 , F15B11/05 , F15B11/044 , F15B20/00
CPC分类号： F15B20/002 , B66F9/22 , F15B11/003 , F15B11/05 , F15B20/008 , F15B2211/40515 , F15B2211/40576 , F15B2211/413 , F15B2211/41581 , F15B2211/46 , F15B2211/5756 , F15B2211/6355 , F15B2211/7052 , F15B2211/72

38. 发明公开

EP1672225A2 Ventilanordnung und Verfahren zur Ansteuerung eines doppeltwirkenden Verbrauchers 有权
公开(公告)号：EP1672225A2
公开(公告)日：2006-06-21
申请号：EP05110768.8
申请日：2005-11-15
申请人： Bosch Rexroth AG
发明人： Keuper, Gerhard, Dr. , Stachnik, Peter, Dr. , Lödige, Heinrich , Kunz, Reiner
IPC分类号： F15B11/05 , F15B11/16
CPC分类号： F15B11/05 , F15B11/165 , F15B2211/2053 , F15B2211/20546 , F15B2211/30535 , F15B2211/3111 , F15B2211/3127 , F15B2211/31576 , F15B2211/323 , F15B2211/327 , F15B2211/413 , F15B2211/41527 , F15B2211/42 , F15B2211/428 , F15B2211/46 , F15B2211/50527 , F15B2211/50572 , F15B2211/5159
摘要： Offenbart sind eine Ventilanordnung und ein Verfahren zum Ansteuern eines doppeltwirkenden Verbrauchers (6), insbesondere eines Hubwerks eines mobilen Arbeitsgeräts, wobei einem Verbraucher eine verstellbare Zumessblende (14) und eine Individualdruckwaage (22,24) zugeordnet ist, über die die Druckdifferenz über der Zumessblende lastdruckunabhängig konstant gehalten werden kann. Erfindungsgemäß lässt sich die Individualdruckwaage in vorbestimmten Betriebszuständen vom Lastdruck in eine Sperrstellung umschalten, so dass die Druckmittelversorgung zum Verbraucher abgesperrt ist, obwohl die Zumessblende weiter geöffnet ist.
摘要翻译：该装置具有形成计量孔的方向控制阀（14）。控制阀连接到单独的压力表（12）上，以保持压力恒定在孔口上。在负载的预定操作状态下，刻度被切换到锁定位置。先导阀（13）使来自加压介质源的压力控制控制活塞的控制面用于切换标尺。还包括用于控制双重作用的消费者，特别是移动工具的提升齿轮的方法的独立权利要求。

39. 发明授权

EP1164297B1 HYDRAULIC DRIVING DEVICE 有权
标题翻译：液压驱动系统
公开(公告)号：EP1164297B1
公开(公告)日：2005-08-31
申请号：EP01946922.0
申请日：2001-01-24
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： NAKATANI, Kenichiro , KANAI, Takashi , TSURUGA, Yasutaka , KAWAMOTO, Junya , HAMAMOTO, Satoshi , OKAZAKI, Yasuharu , NAGAO, Yukiaki
IPC分类号： F15B11/00 , F15B11/05 , E02F9/22 , F15B11/16 , F15B20/00
CPC分类号： F15B11/167 , E02F9/22 , E02F9/2225 , E02F9/2232 , E02F9/226 , E02F9/2282 , E02F9/2285 , E02F9/2296 , F15B11/05 , F15B11/165 , F15B2211/20553 , F15B2211/20584 , F15B2211/253 , F15B2211/30505 , F15B2211/30535 , F15B2211/30555 , F15B2211/3105 , F15B2211/3144 , F15B2211/31576 , F15B2211/324 , F15B2211/329 , F15B2211/355 , F15B2211/40507 , F15B2211/6054 , F15B2211/6055 , F15B2211/6346 , F15B2211/6355
摘要： A hydraulic driving device, comprising a pressure compensating valve in an LS system, wherein an actuator lock switching valve (50), allowing a drain line (52) and a pilot line (53) to communicate with each other when the valve is switched to position (C) and allowing pilot lines (51) and (53) to communicate with each other when the valve is switched to position (D), is provided therein, the pilot line (51) is connected to a delivery line (7) of a hydraulic pump (10), the pilot line (53) is connected to pressure receiving parts (28a, 28b) provided at the closing operation side end part of pressure compensating valves (21a, 21b), and the actuator lock switching valve (50) having a pressure receiving part (55) connected to the output side of a pilot lock switching valve (43) is switched in conjunction with the switching of the switching valve (43), whereby, even when the drive device contains a directional control valve of mechanical switching system or a directional control valve of mechanical switching system is added, the actuator can be locked with a simple structure so as to prevent an erroneous operation from occurring when the drive device is not operated during engine driving.

40. 发明授权

EP0990802B1 Elektrohydraulische Einrichtung zur Geschwindigkeitssteuerung eines hydraulischen Hubzylinders 有权
标题翻译：用于液压提升缸的速度控制电装置
公开(公告)号：EP0990802B1
公开(公告)日：2004-10-13
申请号：EP99114323.1
申请日：1999-07-21
申请人： ROBERT BOSCH GMBH
发明人： Arnold, Winfried , Steudel, Wolfgang , Lueues, Holger , Zorn, Alexander
IPC分类号： F15B11/05 , F15B11/044 , F15B21/08
CPC分类号： F15B11/044 , F15B11/055 , F15B21/087 , F15B2211/30505 , F15B2211/40515 , F15B2211/41581 , F15B2211/426 , F15B2211/46 , F15B2211/473 , F15B2211/50536 , F15B2211/5151 , F15B2211/55 , F15B2211/615 , F15B2211/633 , F15B2211/6346 , F15B2211/7052 , F15B2211/75

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