公开(公告)号：US09791056B2

公开(公告)日：2017-10-17

申请号：US14818331

申请日：2015-08-05

Applicant: JIANGSU HENGLI HYDRAULIC CO., LTD

Inventor： Liping Wang ,  Qiang Lu ,  Zhan Chen ,  Hongguang Liu ,  Guoliang Zhang

IPC: F16K11/06 ,  F16K11/07 ,  F15B13/04

CPC classification number: F16K11/06 ,  F15B13/0403 ,  F16K11/0716 ,  Y10T137/86493 ,  Y10T137/86702

Abstract: Disclosed is an energy-recycling hydraulic control main valve, which is provided with end covers, a valve core, a left one-way valve and a right one-way valve; the left one-way valve is composed of a left valve seat, a left cone valve core and a left spring; a conical surface of the left cone valve core is closely attached to a left conical surface of the valve core by the spring force; the right one-way valve is composed of a right valve seat, a right cone valve core and a right spring; and a conical surface of the right cone valve core is closely attached to a right conical surface of the valve core by spring force. The hydraulic main control valve can not only limit the falling speed of a piston, but use the potential energy generated by the gravity action on the piston, thereby achieving energy recycling.

公开(公告)号：US20170023026A1

公开(公告)日：2017-01-26

申请号：US15302551

申请日：2015-04-30

Applicant: Parker-Hannifin Corporation

Inventor： Gregory Coolidge

IPC: F15B13/04

CPC classification number: F15B13/0403 ,  F15B13/0402 ,  F15B13/0417 ,  F15B13/0418 ,  F15B13/0839 ,  F16K27/003 ,  F16K27/041

Abstract: A working valve section for a sectional fluid control valve comprising a valve section housing having a substantially planar surface for being attached to an adjacent valve section housing; a main control spool bore (43) extending into the housing substantially parallel to the planar surface; a compensator spool bore (46) extending into the housing substantially parallel to the planar surface, the compensator spool bore being spaced from the main control spool bore; a first relief slot (49a) extending across the planar surface substantially coextensive with the main control spool bore; and a second relief slot (49b) extending across the planar surface substantially coextensive with the compensator spool bore.

Abstract translation: 一种用于截面流体控制阀的工作阀部分，包括具有基本平坦的表面的阀部分壳体，用于附接到相邻的阀部分壳体; 主控制阀芯孔（43），其基本上平行于所述平面延伸到所述壳体中; 补偿阀芯孔（46），其基本上平行于所述平坦表面延伸到所述壳体中，所述补偿阀芯孔与所述主控制阀芯孔间隔开; 延伸穿过平面的第一释放槽（49a），其基本上与主控制阀芯孔共同延伸; 以及延伸穿过所述平坦表面的第二释放槽（49b），所述第二释放槽基本上与所述补偿器阀芯孔共同延伸。

公开(公告)号：US09217341B2

公开(公告)日：2015-12-22

申请号：US13967820

申请日：2013-08-15

Applicant: Caterpillar Inc.

Inventor： Kyle C. Hiner ,  Lauritz P. Pillers, II

IPC: B23Q11/12 ,  F16K31/12 ,  F01M11/04 ,  F15B13/04 ,  F16N11/10 ,  F16N29/04 ,  F15B20/00 ,  E02F3/96 ,  F15B13/042

CPC classification number: F01M11/0408 ,  E02F3/966 ,  F15B13/0403 ,  F15B13/0426 ,  F15B20/00 ,  F15B2211/50536 ,  F16N11/10 ,  F16N29/04 ,  F16N2260/04 ,  Y10T137/7762

Abstract: A lubrication system for a tool powered by a drive fluid is provided. The lubrication system includes a reservoir configured to deliver a lubricant and a plunger disposed within the reservoir. The plunger is configured to selectively generate a pilot signal based on a level of the lubricant. The lubrication system further includes a valve having a housing. The housing includes a drive fluid inlet and a drive fluid outlet. The valve also includes a pilot spool configured to move from a neutral position to an actuated position in response to the pilot signal. The valve further includes a main spool selectively actuated by a pressure of the drive fluid to move from a first position to a second position in response to the movement of the pilot spool such that in the second position the drive fluid inlet is in fluid communication with the drive fluid outlet.

Abstract translation: 提供了一种用于由驱动流体供电的工具的润滑系统。 润滑系统包括被配置为输送润滑剂的储存器和设置在储存器内的柱塞。 柱塞构造成基于润滑剂的水平选择性地产生导频信号。 润滑系统还包括具有外壳的阀。 壳体包括驱动流体入口和驱动流体出口。 该阀还包括一个引导阀芯，该引导阀构造成响应于导频信号从中性位置移动到致动位置。 该阀还包括主阀芯，该主阀芯由驱动流体的压力响应于先导阀芯的运动而从第一位置移动到第二位置，使得在第二位置，驱动流体入口与 驱动流体出口。

公开(公告)号：US08474486B2

公开(公告)日：2013-07-02

申请号：US12350479

申请日：2009-01-08

Applicant: Luc P. Cyrot

Inventor： Luc P. Cyrot

IPC: B64C13/40 ,  F15B13/02

CPC classification number: F15B13/0442 ,  F15B13/0403 ,  Y10T137/86606 ,  Y10T137/86614

Abstract: An actuator system (14) comprising a valve assembly (40) having an inner spool (50), an outer spool (60), and a sleeve (70). An assembly (80) directly drives the inner spool (50) to move it relative to the outer spool (60), and thereby hydromechanically causes the outer spool (60) to move relative to the sleeve (70). A control assembly (90) provides current input to the drive assembly (80), which converts current input into mechanical motion. The control assembly (90) senses the position of the inner spool (50) and regulates current in accordance with the sensed position.

Abstract translation: 一种致动器系统（14），包括具有内部卷轴（50），外部卷轴（60）和套筒（70）的阀组件（40）。 组件（80）直接驱动内部卷轴（50）以使其相对于外部卷轴（60）移动，从而液压机构地使外部卷轴（60）相对于套筒（70）移动。 控制组件（90）向驱动组件（80）提供电流输入，其将电流输入转换为机械运动。 控制组件（90）根据感测到的位置检测内部卷轴（50）的位置并调节电流。

公开(公告)号：US08302629B2

公开(公告)日：2012-11-06

申请号：US12725161

申请日：2010-03-16

Applicant: Masakazu Hattori

Inventor： Masakazu Hattori

IPC: F15B13/043

CPC classification number: F15B13/0403 ,  Y10T137/8659 ,  Y10T137/86598 ,  Y10T137/86831

Abstract: A valve unit 1 includes a first valve body 14 which is slidable in a valve housing 11 and a second valve body 13 which is slidable with respect to the first valve body 14, and the valve housing 11 has a first passage 11a and a second passage 11b in both of which pressure fluid flows to slide the second valve body 13, a pump port 11c, a tank port 11e, a first cylinder port 11d, and a second cylinder port 11f. A first state 1a, a third state 1c, a second state 1b, and a fourth state 1d are realized by a combination of a position of the first valve body 14 after sliding and a position of the second valve body 13 after sliding with respect to the first valve body 14.

Abstract translation: 阀单元1包括可在阀壳体11中滑动的第一阀体14和可相对于第一阀体14滑动的第二阀体13，并且阀壳体11具有第一通道11a和第二通道 11b，两个压力流体流动以滑动第二阀体13，泵口11c，罐口11e，第一气缸端口11d和第二气缸端口11f。 第一状态1a，第三状态1c，第二状态1b和第四状态1d通过滑动之后的第一阀体14的位置和第二阀体13相对于 第一阀体14。

公开(公告)号：US07581562B2

公开(公告)日：2009-09-01

申请号：US10560583

申请日：2004-06-28

Applicant: Armin Steinhilber ,  Michel Rivolier

Inventor： Armin Steinhilber ,  Michel Rivolier

IPC: F15B13/04

CPC classification number: F15B13/0403 ,  F15B13/0402 ,  Y10T137/86702 ,  Y10T137/8671

Abstract: The invention relates to a hydraulic distributor comprising a casing, a pressurized fluid inlet, a fluid return port, at least two working ports, a slide which is housed in the casing, a passage which is provided in the casing in order to connect the inlet with the working ports, adjustment means which are connected to a load detection line channel, a supply bridge which opens into the slide hole on either side of the inlet chamber, and two main check valves which are borne internally by the slide, The inventive distributor further comprises two secondary check valves which are mounted in the longitudinal channels upstream of the main check valve heads and which are connected to torque slits which open into the hole in which the slide moves.

Abstract translation: 本发明涉及一种液压分配器，其包括壳体，加压流体入口，流体返回端​​口，至少两个工作端口，容纳在壳体中的滑动件，设置在壳体中以便连接入口 工作端口，连接到负载检测线通道的调节装置，通向入口室两侧的滑动孔中的供应桥，以及由滑块内部承载的两个主止回阀。 还包括两个二次止回阀，它们安装在主止回阀头上游的纵向通道中，并连接到向滑动件移动的孔中的扭矩狭缝。

公开(公告)号：US07216662B2

公开(公告)日：2007-05-15

申请号：US11067673

申请日：2005-03-01

Applicant: Noriyuki Okamoto

Inventor： Noriyuki Okamoto

IPC: G05D7/01

CPC classification number: G05D7/014 ,  B62D5/062 ,  F15B11/0423 ,  F15B13/0403 ,  F15B2211/40515 ,  F15B2211/40553 ,  F15B2211/45 ,  F15B2211/455 ,  Y10T137/2579 ,  Y10T137/2584 ,  Y10T137/2589 ,  Y10T137/2615

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20050194043A1

公开(公告)日：2005-09-08

申请号：US11067673

申请日：2005-03-01

Applicant: Noriyuki Okamoto

Inventor： Noriyuki Okamoto

IPC: F16K17/04 ,  G05D7/01

CPC classification number: G05D7/014 ,  B62D5/062 ,  F15B11/0423 ,  F15B13/0403 ,  F15B2211/40515 ,  F15B2211/40553 ,  F15B2211/45 ,  F15B2211/455 ,  Y10T137/2579 ,  Y10T137/2584 ,  Y10T137/2589 ,  Y10T137/2615

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06922923B2

公开(公告)日：2005-08-02

申请号：US10433842

申请日：2001-11-29

Applicant: Masami Kondou

Inventor： Masami Kondou

IPC: E02F9/22 ,  F15B11/00 ,  F15B11/042 ,  F15B11/044 ,  F15B13/04 ,  G05D7/01

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06412392B1

公开(公告)日：2002-07-02

申请号：US09497436

申请日：2000-02-03

Applicant: Ebinger Günter ,  Homm Manfred

Inventor： Ebinger Günter ,  Homm Manfred

IPC: F15B13042

CPC classification number: F15B13/0403 ,  F15B13/0402 ,  F15B13/042 ,  F16D25/14 ,  F16D48/02 ,  F16D2048/0209 ,  F16H2061/0253 ,  Y10T137/8663

Abstract: A hydraulic valve having a kinked characteristic curve is provided for a hydraulic consumer of a motor vehicle.

Abstract translation: 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。