-
公开(公告)号：EP3350454A1
公开(公告)日：2018-07-25
申请号：EP16778518.7
申请日：2016-09-16
IPC分类号： F15B11/072 , F15B21/08 , F15B13/042 , F15B13/043
CPC分类号： G05D16/202 , F15B11/072 , F15B11/0725 , F15B13/0426 , F15B13/0431 , F15B21/08 , F15B2211/212 , F15B2211/216 , F15B2211/30525 , F15B2211/6355 , F15B2211/895 , G05B15/02
摘要： A gas-over-oil actuator system for use with a valve in a natural gas pipeline. The system includes a gas-over-oil actuator and a wireless position monitor operatively coupled to the gas-over-oil actuator. The wireless position monitor includes an integral opened spool valve and is adapted to be communicatively coupled to a remote workstation via a wireless network and a wireless gateway. At least one switching relay is operatively coupled to the gas-over-oil actuator and the wireless position monitor. Upon receiving a wireless command from the remote workstation, the wireless position monitor drives a pressure signal from the opened center spool valve to the at least one switching relay to manage high pressure supply to the gas-over-oil actuator and move the valve to a desired position.
-
2.发明授权HYDRAULISCHER ANTRIEB, INSBESONDERE FÜR WERKZEUGMASCHINEN, UND VERFAHREN ZUM STEUERN DES HYDRAULISCHEN ANTRIEBS 有权液压驱动装置，特别是用于工具机的液压驱动装置以及用于控制液压驱动装置的方法
公开(公告)号：EP2115305B1
公开(公告)日：2018-03-21
申请号：EP08758919.8
申请日：2008-05-31
申请人： Voith Patent GmbH
发明人： BRAHMER, Bert
IPC分类号： F15B11/044 , B30B15/22
CPC分类号： F15B11/044 , B30B15/16 , F15B2211/20538 , F15B2211/212 , F15B2211/30525 , F15B2211/3144 , F15B2211/31576 , F15B2211/40507 , F15B2211/40515 , F15B2211/41527 , F15B2211/428 , F15B2211/46 , F15B2211/50536 , F15B2211/5151 , F15B2211/55 , F15B2211/7053
-
公开(公告)号：EP3277986A1
公开(公告)日：2018-02-07
申请号：EP16713456.8
申请日：2016-04-01
CPC分类号： F16D25/123 , B60T13/12 , B60T15/02 , F15B11/16 , F15B13/024 , F15B13/06 , F15B2211/30525 , F15B2211/50518 , F15B2211/50536 , F15B2211/5157 , F15B2211/528 , F15B2211/55 , F15B2211/575 , F15B2211/6355 , F15B2211/67 , F15B2211/863 , F15B2211/8633 , F15B2211/8752 , F16D25/14 , F16D67/04 , F16H61/0021 , F16H61/0025 , F16H61/0206
摘要： A hydraulic system for a multiple friction transmission, comprising: a first pressure relief valve 5 regulable by means of a first pilot pressure; a normally-open drain valve 8, which is a directional valve switchable between an open state and a closed state by means of a second pilot pressure; at least one first pressure regulator 11 for operating the drain valve by means of a first pilot pressure and a second pilot pressure, respectively; wherein in the event of detrimental hydraulic pressure build up, the second pilot pressure is dropped to open the drain valve, so as to relieve pressure through the drain line.
-
公开(公告)号：EP3246578A1
公开(公告)日：2017-11-22
申请号：EP17169400.3
申请日：2017-05-04
申请人： Robert Bosch GmbH
IPC分类号： F15B11/16 , F15B11/042
CPC分类号： F15B13/0402 , F15B11/0423 , F15B11/08 , F15B11/16 , F15B13/06 , F15B2211/20546 , F15B2211/253 , F15B2211/255 , F15B2211/30525 , F15B2211/40515 , F15B2211/415 , F15B2211/426 , F15B2211/665 , F15B2211/6654 , F15B2211/71
摘要： A hydraulic system is provided for controlling one or more piston-cylinders of an implement. An implement valve includes at least one spool operable to transition between a neutral position and an open position. A variable displacement pump is operable to move a fluid from a reservoir into a supply conduit and to the at least one spool. A flow control valve, distinct and separate from the at least one spool is located in-line with the supply conduit between the variable displacement pump and the at least one spool, and is operable to simultaneously provide the fluid to the implement valve and to a bypass pathway. The bypass pathway extends from the flow control valve to the reservoir without intervening valving. Each of the at least one spool is operable to permit increased fluid flow to a corresponding piston cylinder of the implement when in the open position. The variable displacement pump is operable to vary a flow rate to maintain a predetermined pump margin across the flow control valve.
摘要翻译： 提供液压系统用于控制器具的一个或多个活塞缸。 执行阀包括至少一个可用于在空档位置和打开位置之间转换的阀芯。 可变排量泵可操作以将流体从储存器移动到供应导管和至少一个阀芯。 与至少一个阀芯不同且独立的流量控制阀位于可变排量泵和至少一个阀芯之间的供应管道的同轴线上，并且可操作用于同时将流体提供给执行阀和 旁路途径。 旁路通路从流量控制阀延伸到储存器而不介入阀门。 当处于打开位置时，至少一个阀芯中的每一个都可操作以允许流体流动增加到工具的对应活塞缸。 可变排量泵可操作以改变流量以在流量控制阀上保持预定的泵容限。
-
公开(公告)号：EP2918852B1
公开(公告)日：2017-08-16
申请号：EP13852607.4
申请日：2013-11-05
发明人： UDAGAWA Tsutomu , NAKAYAMA Akira , YAMASHITA Ryohei , IZUMI Shiho , EDAMURA Manabu , ISHIKAWA Kouji , SATAKE Hidetoshi
IPC分类号： F15B11/00 , E02F9/22 , F15B11/02 , F15B11/042 , E02F3/32
CPC分类号： F15B11/028 , E02F3/32 , E02F9/22 , E02F9/2235 , E02F9/2285 , E02F9/2296 , F15B11/0423 , F15B2211/20546 , F15B2211/251 , F15B2211/30525 , F15B2211/3111 , F15B2211/365 , F15B2211/6309 , F15B2211/633 , F15B2211/6333 , F15B2211/6346 , F15B2211/6652 , F15B2211/6653 , F15B2211/6654
摘要： The energy efficiency is increased by reducing the throttle/relief loss in the delivery flow of the hydraulic pump caused by the bleed-off control, while also making it possible to control the delivery pressure of the hydraulic pump according to the operation amount of the control lever unit and improving the operational performance. A controller 6 includes a target pump pressure setting unit 32 which calculates a target pump delivery pressure which increases with the increase in an operation amount signal from an operation amount detector 20A/20B based on the operation amount signal and a pump flow rate upper limit setting unit 33 which calculates a pump flow rate upper limit which increases with the increase in the operation amount signal based on the operation amount signal. The tilt amount of the hydraulic pump 2 is controlled based on the target pump delivery pressure calculated by the target pump pressure setting unit 32, the pump flow rate upper limit calculated by the pump flow rate upper limit setting unit 33, and the delivery pressure of the hydraulic pump 2 detected by a pressure detector 21.
摘要翻译： 通过减少由泄放控制引起的液压泵的输送流中的节流/泄放损失，能量效率增加，同时还可以根据控制的操作量来控制液压泵的输送压力 杠杆单元并提高操作性能。 控制器6包括目标泵压力设定单元32，该目标泵压力设定单元32基于操作量信号和泵流量上限设定来计算随着来自操作量检测器20A / 20B的操作量信号的增加而增加的目标泵排出压力 单元33，其基于操作量信号计算随着操作量信号的增加而增加的泵流量上限。 基于由目标泵压力设定部32计算出的目标泵排出压力，由泵流量上限值设定部33计算出的泵流量上限值，以及由泵流量上限值设定部33计算出的排出压力来控制液压泵2的倾转量 液压泵2由压力检测器21检测。
-
公开(公告)号：EP3159473A1
公开(公告)日：2017-04-26
申请号：EP15190930.6
申请日：2015-10-22
发明人： ANTTONEN, Pekka , VERHO, Samuli , PUURA, Jussi
IPC分类号： E21B6/00 , E21B6/04 , E21B7/02 , E21B19/086
CPC分类号： E21B7/022 , E21B6/00 , E21B6/04 , E21B7/025 , E21B19/086 , F15B11/17 , F15B13/06 , F15B2211/20576 , F15B2211/30525
摘要： The invention relates to a rock drilling rig. The rock drilling rig (1) comprises a drilling unit (4) provided with hydraulically operated actuators such as an impact device (9), a rotation device (11) and a feed device (7). The impact device and the rotation device are connected to dedicated hydraulic circuits provided with dedicated supply and discharge lines and are controlled by means of dedicated control valves being on the a carrier (2) of the rock drilling rig. The feed device is connected to a distributed hydraulic system wherein several actuators are connected to a common hydraulic circuit (CHC) provided with one common supply line (15) and one common discharge line (16) and are controlled by several distributed valves. The distributed valve of the feed device is located at the drilling unit.
摘要翻译： 本发明涉及一种凿岩钻机。 凿岩机（1）包括设有诸如冲击装置（9），旋转装置（11）和进给装置（7）的液压操作致动器的钻凿单元（4）。 冲击装置和旋转装置连接到设有专用供给和排出管线的专用液压回路，并且通过位于岩石钻机的载体（2）上的专用控制阀来控制。 供给装置连接到分布式液压系统，其中多个致动器连接到设有一个公共供给管路（15）和一个公共供给管路（16）的公共液压回路（CHC），并由多个分布式阀门控制。 进给装置的分布式阀门位于钻孔单元处。
-
公开(公告)号：EP3126275A1
公开(公告)日：2017-02-08
申请号：EP15712955.2
申请日：2015-03-31
发明人： KUCZERA, Thomas , HOFFMANN, Walter
IPC分类号： B66B5/18
CPC分类号： B66B5/18 , B66B1/365 , B66B9/00 , F15B11/08 , F15B13/0401 , F15B2211/30525 , F16D65/16
摘要： The invention relates to an elevator (2) having a braking device (14), in particular a safety brake or service brake, the braking device (14) having a hydraulic brake (30) for slowing down and/or stopping a cab (4) of the elevator (2) and a hydraulic unit (16) that has a pump assembly (20), a brake cylinder assembly (24) and a valve assembly (26) for ventilating the brake (30), and the hydraulic unit (16) being fastened to the braking device (14). Such a hydraulic unit (16) is also part of the invention.
摘要翻译： 例如，电梯可以包括制动装置，例如安全装置系统或行车制动器。 制动装置可以包括用于制动电梯的电梯轿厢的液压作用的制动器。 制动装置可以进一步包括具有泵组件，制动缸组件和用于使制动器通风的阀组件的液压单元。 此外，液压单元可以被紧固到制动装置。
-
公开(公告)号：EP3009690A4
公开(公告)日：2017-01-25
申请号：EP13886794
申请日：2013-06-14
发明人： PARK SUNG-BOK , CHOI JIN-YOUN
IPC分类号： F15B13/02 , E02F3/43 , E02F9/22 , F15B13/04 , F15B13/042 , F16K11/07 , F16K31/363
CPC分类号： E02F9/2225 , E02F3/435 , E02F9/2267 , E02F9/2285 , F15B13/0402 , F15B13/042 , F15B2211/30525 , F16K11/0716 , F16K31/363
-
公开(公告)号：EP2884117B1
公开(公告)日：2016-11-23
申请号：EP13827990.6
申请日：2013-04-11
发明人： HASHIMOTO, Hirofumi
CPC分类号： E02F9/2282 , E02F9/2228 , E02F9/2242 , E02F9/2267 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B11/00 , F15B11/16 , F15B13/0402 , F15B2211/255 , F15B2211/3052 , F15B2211/30525 , F15B2211/3056 , F15B2211/30595 , F15B2211/3157 , F15B2211/327 , F15B2211/40515 , F15B2211/41554 , F15B2211/45 , F15B2211/7142
摘要： A hydraulic circuit for a construction machine including a center bypass passage, into which a pressurized oil discharged from a hydraulic pump may be supplied, including a directional control valve group including a plurality of directional control valves arranged in tandem with the center bypass passage; and a bleed-off valve arranged in the center bypass passage on a downstream side of the directional control valve group, wherein each directional control valve includes a first internal passage for causing the pressurized oil supplied to the directional control valve to flow out to the center bypass passage and a second internal passage for supplying the pressurized oil to a cylinder port, wherein a parallel passage is formed by the center bypass passage and the first internal passage by causing, by the first internal passage, the pressurized oil discharged from the hydraulic pump to flow out to the center bypass passage on the downstream side of the directional control valve, wherein the second internal passage supplies the pressurized oil from the center bypass passage through an opening of a spool and/or the bypass passage to the cylinder port.
-
公开(公告)号：EP3045590A1
公开(公告)日：2016-07-20
申请号：EP13893535.8
申请日：2013-09-13
发明人： KANG, Min-Heuk
CPC分类号： E02F9/2267 , E02F9/2203 , E02F9/2285 , F15B13/01 , F15B13/021 , F15B2211/30525 , F16K11/0708 , F16K31/12
摘要： A construction machine float valve is disclosed, which can remove a spool stick phenomenon that may occur during leveling and flattening work. The float valve includes a valve block including first and second actuator ports formed therein to respectively communicate with a large chamber and a small chamber of a hydraulic cylinder of a working device and a tank port formed therein to selectively communicate with the first and second actuator ports, a holding poppet installed in a path that connects the first actuator port to the second actuator port and the tank port to be opened or closed, a spool installed in the valve block to be shifted to open the path through sifting the holding poppet to a holding function releasing position, a boom-up signal pressure port configured to receive boom-up pilot pressure applied thereto to make the spool return to a neutral position if the spool does not return to the neutral position when the boom-down pilot pressure is released, a piston configured to make the spool return to the neutral position through pressing the spool by means of the boom-up pilot pressure that is applied to the boom-up signal pressure port, and a drain port configured to drain the hydraulic fluid from a pressure chamber if the piston is pressed by the boom-up pilot pressure or if the spool is shifted by the boom-down pilot pressure.
-
-
-
-
-
-
-
-
-
搜索结果
765 条记录 (耗时 0.019 秒)
