专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US10066650B2 Cylinder driving apparatus 有权
公开(公告)号：US10066650B2
公开(公告)日：2018-09-04
申请号：US14432756
申请日：2013-09-03
申请人： KAYABA INDUSTRY CO., LTD.
发明人： Daisuke Tanaka
IPC分类号： F15B15/14 , F15B7/00 , F15B15/18
CPC分类号： F15B15/149 , F15B7/006 , F15B15/1423 , F15B15/18 , F15B2211/2053 , F15B2211/20561 , F15B2211/27 , F15B2211/3051 , F15B2211/3058 , F15B2211/40507 , F15B2211/40584 , F15B2211/41563 , F15B2211/50518 , F15B2211/5159 , F15B2211/7053 , F15B2211/761 , F15B2211/785
摘要： A cylinder driving apparatus includes a first passage connecting a first chamber of a cylinder to a first port of a pump; a second passage connecting a second chamber of the cylinder to a tank; a third passage connecting a second port of the pump to the tank; a throttle configured to apply resistance to a working fluid flowing through the third passage; and an operated check valve provided in the first passage to allow the working fluid to flow from the pump into the first chamber. The operated check valve is configured to allow the working fluid to flow from the first chamber into the pump in accordance with a fluid pressure of the working fluid in the third passage between the pump and the throttle.

2. 发明授权

US09829013B2 Hydraulic system for construction machine 有权
公开(公告)号：US09829013B2
公开(公告)日：2017-11-28
申请号：US14776367
申请日：2014-03-13
申请人： DOOSAN INFRACORE CO., LTD.
发明人： Yong Lak Cho , Dal Sik Jang , Woo Yong Jung , Min Ha An , A Reum Seo , Sang Woo Lee , Yoon Seok Jang
IPC分类号： F15B1/02 , F15B1/027 , E02F9/22 , F15B11/17 , F15B1/04 , F15B11/10 , F15B13/02 , F15B13/04
CPC分类号： F15B1/027 , E02F9/2217 , E02F9/2267 , E02F9/2289 , E02F9/2292 , E02F9/2296 , F15B1/04 , F15B11/10 , F15B11/17 , F15B13/027 , F15B13/04 , F15B2201/4155 , F15B2201/51 , F15B2211/20561 , F15B2211/20576 , F15B2211/212 , F15B2211/27 , F15B2211/40 , F15B2211/7053 , F15B2211/785
摘要： The present disclosure relates to a hydraulic system for a construction machine, and more particularly, to a hydraulic system for a construction machine including a plurality of actuators, in which each of the actuators includes a pump/motor, is operated under a control of a corresponding pump/motor, and stores working oil in an accumulator or receives the working oil supplemented from the accumulator in accordance with a difference between a flow rate entering the actuator and a flow rate discharged from the actuator.

3. 发明授权

US09803702B2 Hydraulic actuating device for actuation of at least one friction clutch and at least one gear setting element in a motor vehicle 有权
公开(公告)号：US09803702B2
公开(公告)日：2017-10-31
申请号：US14149907
申请日：2014-01-08
申请人： FTE automotive GmbH
发明人： Wilhelm Heubner
IPC分类号： F16H61/30 , F16D48/02 , F15B11/12 , F16H63/34 , F15B7/08 , F15B7/00
CPC分类号： F16D25/14 , F15B7/006 , F15B7/08 , F15B11/122 , F15B2211/20515 , F15B2211/20561 , F15B2211/27 , F15B2211/6336 , F15B2211/665 , F15B2211/6651 , F15B2211/7053 , F15B2211/7054 , F15B2211/7128 , F15B2211/72 , F15B2211/785 , F16H61/30 , F16H63/34
摘要： A hydraulic actuating device for a friction clutch and a gear setting element has a power unit for pressure generation by use of an electrically driven pump. Gear setting and clutch actuating sections are hydraulically connected to the power unit. A detenting device with a blocking element is associated with a piston of the clutch setting cylinder, which is operatively connected with the friction clutch and can be hydraulically loaded on opposite sides. The blocking element is resiliently biased into a blocking setting preventing piston movement and is movable by an actuator from the blocking setting into a release setting permitting piston movement. The pump is reversible in order to load the piston on one or the other side for an actuating movement. The control unit coordinates activation of the pump and actuator in order to disengage or engage the friction clutch.

4. 发明申请

US20170191346A1 APPARATUS AND METHODS FOR MANUAL OVERRIDE OF HYDRAULIC CHOKE OR VALVE ACTUATORS 审中-公开
公开(公告)号：US20170191346A1
公开(公告)日：2017-07-06
申请号：US15129058
申请日：2015-03-25
申请人： Schlumberger Technology Corporation
发明人： Christopher D. Nicholson
IPC分类号： E21B34/02 , E21B21/10 , E21B21/08
CPC分类号： E21B34/02 , E21B21/08 , E21B21/106 , F15B13/10 , F15B15/202 , F15B2211/3058 , F15B2211/324 , F15B2211/785 , F15B2211/8633 , F15B2211/8752
摘要： A hydraulic actuator comprises a chamber, a first line, a second line, and an auxiliary line. The chamber allows fluid to move therethrough and comprises a movable element therein. The first line is in fluid communication with the chamber. The second line is in fluid communication with the chamber. The auxiliary line connects the first line and the second line and comprises a valve to selectively allow fluid communication between the first line and the second line as the movable element is moved in the chamber.

5. 发明申请

US20160333903A1 HYDRAULIC SYSTEM HAVING REGENERATION AND HYBRID START 审中-公开
标题翻译：具有再生和混合启动的液压系统
公开(公告)号：US20160333903A1
公开(公告)日：2016-11-17
申请号：US14708788
申请日：2015-05-11
申请人： Caterpillar Inc.
发明人： Jeremy Todd PETERSON , Jeffrey Lee KUEHN , Michael L. KNUSSMAN , Michael T. VERKUILEN
IPC分类号： F15B21/14 , F15B13/04 , F15B1/04
CPC分类号： F15B21/14 , E02F9/2207 , E02F9/2217 , E02F9/2289 , E02F9/2292 , E02F9/2296 , F15B1/024 , F15B1/033 , F15B7/006 , F15B2211/20523 , F15B2211/20546 , F15B2211/20561 , F15B2211/20569 , F15B2211/20576 , F15B2211/27 , F15B2211/30515 , F15B2211/613 , F15B2211/625 , F15B2211/6346 , F15B2211/6652 , F15B2211/785 , F15B2211/851 , F15B2211/8613
摘要： A hydraulic system is disclosed. The hydraulic system may include a fluid source and an actuator having a first passage and a second passage. The hydraulic system may further include a pump having a first port connected to the first passage, a second port connected to the second passage, and a third port connected to the fluid source. The first and second passages may be connected to each other via the first and second ports, and the first passage and the low-pressure fluid source may be connected to each other via the first and third ports. They hydraulic system may further include a charge circuit fluidly connected to the first and second passages, and at least one damping control valve configured to selectively allow fluid from the pump to pass into the charge circuit to dampen pressure oscillations between the actuator and the pump.
摘要翻译：公开了一种液压系统。液压系统可以包括流体源和具有第一通道和第二通道的致动器。液压系统还可以包括具有连接到第一通道的第一端口，连接到第二通道的第二端口和连接到流体源的第三端口的泵。第一和第二通道可以经由第一和第二端口彼此连接，并且第一通道和低压流体源可以经由第一和第三端口彼此连接。它们的液压系统还可以包括流体地连接到第一和第二通道的充电回路，以及至少一个阻尼控制阀，其构造成选择性地允许来自泵的流体进入充电回路以抑制致动器和泵之间的压力振荡。

6. 发明申请

US20160230900A1 VALVE DEVICE 有权
标题翻译：阀门设备
公开(公告)号：US20160230900A1
公开(公告)日：2016-08-11
申请号：US15024055
申请日：2014-11-18
申请人： HYDAC FLUIDTECHNIK GMBH
发明人： Frank SCHULZ , Michael REIK , Philipp HILZENDEGEN
IPC分类号： F16K11/10 , F16K31/122 , F15B15/14 , F16K15/02
CPC分类号： F16K11/105 , F15B1/027 , F15B13/028 , F15B15/149 , F15B2211/20561 , F15B2211/212 , F15B2211/27 , F15B2211/30515 , F15B2211/3052 , F15B2211/7053 , F15B2211/785 , F16K15/026 , F16K31/1221 , F16K31/1225 , Y10T137/2567 , Y10T137/2569
摘要： The invention relates to a valve device, in particular a double stop-check valve, preferably of the two-way valve type, comprising at least three fluid connections (1, 2, 3) provided in a valve housing (51), at least two valve elements (65, 67) that can slide in the valve housing (51), and at least one control device (71) for controlling the valve elements (65, 67). The valve is characterized in that at least one of the valve elements (65, 67) forms, together with parts (59/61) of the valve housing (51), a seat leak-tight closure part for the associated fluid connections (1, 2, 3).
摘要翻译：本发明涉及一种阀装置，特别是双止阀止回阀，优选为双向阀型，至少包括设置在阀壳体（51）中的至少三个流体连接件（1,2,3），至少三个可以在阀壳体（51）中滑动的两个阀元件（65,67）以及用于控制阀元件（65,67）的至少一个控制装置（71）。该阀的特征在于，阀元件（65,67）中的至少一个与阀壳体（51）的部件（59/61）一起形成用于相关联的流体连接件（1）的座位密封封闭部件，2,3）。

7. 发明申请

US20160032945A1 HYDRAULIC SYSTEM FOR CONSTRUCTION MACHINE 有权
标题翻译：建筑机械液压系统
公开(公告)号：US20160032945A1
公开(公告)日：2016-02-04
申请号：US14776367
申请日：2014-03-13
申请人： DOOSAN INFRACORE CO., LTD.
发明人： Yong Lak CHO , Dal Sik JANG , Woo Yong JUNG , Min Ha AN , A Reum SEO , Sang Woo LEE , Yoon Seok JANG
IPC分类号： F15B1/027 , F15B11/10 , F15B13/04 , F15B1/04 , F15B13/02
CPC分类号： F15B1/027 , E02F9/2217 , E02F9/2267 , E02F9/2289 , E02F9/2292 , E02F9/2296 , F15B1/04 , F15B11/10 , F15B11/17 , F15B13/027 , F15B13/04 , F15B2201/4155 , F15B2201/51 , F15B2211/20561 , F15B2211/20576 , F15B2211/212 , F15B2211/27 , F15B2211/40 , F15B2211/7053 , F15B2211/785
摘要： The present disclosure relates to a hydraulic system for a construction machine, and more particularly, to a hydraulic system for a construction machine including a plurality of actuators, in which each of the actuators includes a pump/motor, is operated under a control of a corresponding pump/motor, and stores working oil in an accumulator or receives the working oil supplemented from the accumulator in accordance with a difference between a flow rate entering the actuator and a flow rate discharged from the actuator.
摘要翻译：本发明涉及一种用于建筑机械的液压系统，更具体地，涉及一种用于建筑机械的液压系统，该系统包括多个致动器，其中每个致动器包括泵/马达，在一个控制下运行相应的泵/马达，并且将工作油存储在蓄能器中，或者根据进入致动器的流量与从致动器排出的流量之间的差异，接收从蓄能器补充的工作油。

8. 发明授权

US09234532B2 Velocity control of unbalanced hydraulic actuator subjected to over-center load conditions 有权
标题翻译：不平衡液压执行机构受超中心负载条件的速度控制
公开(公告)号：US09234532B2
公开(公告)日：2016-01-12
申请号：US13060452
申请日：2009-09-03
申请人： Dale Vanderlaan , Ralf Gomm
发明人： Dale Vanderlaan , Ralf Gomm
IPC分类号： F15B7/00
CPC分类号： F15B7/006 , F15B2211/20515 , F15B2211/20561 , F15B2211/613 , F15B2211/6336 , F15B2211/761 , F15B2211/785
摘要： An electro-hydraulic actuation system (901) includes an unbalanced hydraulic actuator (902) capable of motion in retraction and extension directions during movement of a load (904). A pump (204) provides a flow of fluid to the actuator. A displacement of the pump controls a velocity of the actuator during motion in the retraction and extension directions. An electric motor (202) drives the pump. Speed and direction of the electric motor affects the displacement of the pump. A controller (802) controls the speed and direction of the electric motor. A feedback device (228,248) is operable for sensing a system condition and for providing a feedback signal indicative of the sensed system condition to the controller. The controller is responsive to the feedback signal for determining an occurrence of an over-center load condition and for modifying the speed of the electric motor in response to the occurrence in an attempt to maintain the velocity of the actuator.
摘要翻译：电动液压致动系统（901）包括能够在负载（904）运动期间在缩回和延伸方向上运动的不平衡液压致动器（902）。泵（204）向致动器提供流体流。泵的位移在回缩和延伸方向的运动过程中控制致动器的速度。电动机（202）驱动泵。电动机的速度和方向影响泵的位移。控制器（802）控制电动机的速度和方向。反馈装置（228,248）可操作用于感测系统状况，并用于向控制器提供指示感测到的系统状态的反馈信号。控制器响应于反馈信号来确定过中心负载状况的发生，并且响应于试图维持致动器的速度的发生而修改电动机的速度。

9. 发明授权

US09051714B2 Meterless hydraulic system having multi-actuator circuit 有权
标题翻译：具有多执行器电路的无液压液压系统
公开(公告)号：US09051714B2
公开(公告)日：2015-06-09
申请号：US13250067
申请日：2011-09-30
申请人： Patrick Opdenbosch
发明人： Patrick Opdenbosch
IPC分类号： F16D31/02 , E02F9/22 , F15B11/036 , F15B11/042 , F15B7/00 , F15B15/22
CPC分类号： E02F9/2296 , E02F9/2217 , E02F9/2235 , E02F9/2285 , E02F9/2289 , F15B7/006 , F15B11/036 , F15B11/0423 , F15B15/221 , F15B2211/20546 , F15B2211/20561 , F15B2211/20569 , F15B2211/212 , F15B2211/27 , F15B2211/30565 , F15B2211/30595 , F15B2211/31529 , F15B2211/31541 , F15B2211/40592 , F15B2211/41563 , F15B2211/50527 , F15B2211/613 , F15B2211/625 , F15B2211/6346 , F15B2211/6654 , F15B2211/7055 , F15B2211/7128 , F15B2211/7135 , F15B2211/7142 , F15B2211/761 , F15B2211/763 , F15B2211/785 , F15B2211/88 , Y10T137/0396 , Y10T137/85954
摘要： A hydraulic system is disclosed. The hydraulic system may have a pump, a first actuator, and a meterless circuit connecting the first actuator to the pump. The hydraulic system may also have a second actuator connected to the meterless circuit in parallel with the first actuator. The second actuator may be a variable-area linear actuator.
摘要翻译：公开了一种液压系统。液压系统可以具有泵，第一致动器和将第一致动器连接到泵的无量纲电路。液压系统还可以具有与第一致动器并联的无量纲电路的第二致动器。第二致动器可以是可变区线性致动器。

10. 发明授权

US08869924B2 Hybrid excavator including a fast-stopping apparatus for a hybrid actuator 有权
标题翻译：混合动力挖掘机包括用于混合动力执行机构的快速停止装置
公开(公告)号：US08869924B2
公开(公告)日：2014-10-28
申请号：US14116277
申请日：2011-05-11
申请人： Jae-Hong Kim
发明人： Jae-Hong Kim
IPC分类号： B60W10/00 , E02F9/22 , E02F3/30 , E02F9/24 , E02F9/26 , E02F3/42 , F15B20/00 , E02F9/20 , E02F3/43
CPC分类号： E02F3/425 , E02F3/30 , E02F3/435 , E02F9/2075 , E02F9/2271 , E02F9/2278 , E02F9/2292 , E02F9/24 , E02F9/265 , F15B11/0406 , F15B20/00 , F15B2211/20515 , F15B2211/20561 , F15B2211/20584 , F15B2211/27 , F15B2211/3057 , F15B2211/3138 , F15B2211/31529 , F15B2211/633 , F15B2211/6336 , F15B2211/665 , F15B2211/7053 , F15B2211/755 , F15B2211/785 , F15B2211/853
摘要： The hybrid excavator includes: a first detection sensor for detecting an RCV-manipulated quantity; a second detection sensor for detecting the rotational speed of an electric motor; a hydraulic pump-motor connected to the electric motor; a hydraulic cylinder connected to the hydraulic pump-motor; first and second hydraulic valves installed in first and second passages, respectively, between the hydraulic pump-motor and the hydraulic cylinder; a third hydraulic valve for compensating for or bypassing a flow rate and a controller for receiving an RCV-manipulation signal from the first detection sensor and the rotational speed of the electric motor from the second detection sensor to compare the received values to data of previously stored working conditions, to output a control signal for switching the first and second hydraulic valves, and to block a working fluid from returning into the hydraulic cylinder, so as to thereby quickly stop the working device.
摘要翻译：该混合动力挖掘机包括：用于检测RCV操纵量的第一检测传感器; 用于检测电动机的转速的第二检测传感器; 连接到电动机的液压泵电动机; 连接到液压泵电动机的液压缸; 分别安装在液压泵马达和液压缸之间的第一和第二通道中的第一和第二液压阀; 用于补偿或绕过流量的第三液压阀，以及用于接收来自第一检测传感器的RCV操纵信号和来自第二检测传感器的电动机转速的控制器，用于将接收到的值与先前存储的数据进行比较输出用于切换第一和第二液压阀的控制信号，并且阻止工作流体返回到液压缸中，从而快速停止工作装置。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式