| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | 液压阀装置 | CN200510083703.6 | 2005-05-18 | CN1699762A | 2005-11-23 | K·M·詹森; C·C·迪克森 |
| 一种带有控制阀模块(2)的液压阀装置(1)，其包括带有高压连接(P)和低压连接(T)的供应连接装置和带有两个工作连接(A，B)的工作连接装置，以及位于该供应连接装置与该工作连接装置之间的控制阀(3)。为了获得改进的阀装置的控制特性，该控制阀模块(2)具有位于该控制阀(3)和至少一个工作连接(A，B)之间的回流补偿阀(15，16)。 | ||||||
| 62 | 具有改进响应特性闭锁阀的液压控制阀 | CN200510065555.5 | 2005-04-15 | CN1693719A | 2005-11-09 | 田万锡 |
| 公开了一种具有改进响应特性闭锁阀的液压控制阀。液压控制阀包括：阀套，其包括与液压泵连通的泵通道，与油箱连接的箱的通道，和与液压缸连接的第一和第二汽缸通道；可移动地设置在阀套中的控制阀芯，在中立状态下将泵通道切断于第一和第二汽缸端口，并且如果控制信号压力作用到其上而沿左右方向移动时，选择性地将泵通道和油箱通道连接于第一和第二汽缸端口；设置在第二汽缸端口和控制阀芯之间的闭锁阀，当控制阀芯处在中立状态时切断第二汽缸端口并且保持液压缸的负载，从而不会引起液压缸的自然下落；以及闭锁阀的启动通道，当控制阀芯处在中立状态时该启动通道将第二汽缸端口的液压油连接到油箱通道。 | ||||||
| 63 | 管路破裂控制阀 | CN00802321.2 | 2000-10-18 | CN1205418C | 2005-06-08 | 仮屋正雄; 杉山玄六 |
| 结构具备：将管路破裂控制阀100的输入、输出口1安装在液压缸102的底部孔口上，使输入、输出口2通过执行元件管路105与控制阀103的执行元件口之一相连接，且作为主阀的提升阀阀芯5；由外部信号-先导压力而动作、具有使提升阀阀芯5动作的控制可变节流部6a的、作为先导阀的第1滑阀阀芯6；由先导压力使其动作、具有控制辅助流量的辅助可变节流部50a的第2滑阀阀芯50；具有过载溢流阀的功能的小溢流阀7。这样一来，作为一种管路破裂先导阀，具有必要的最低限的各种功能、且能降低压力损失，而且能减小整个阀的体积和能降低制造成本，同时，能获得平稳的流量控制特性且能在很宽的范围内设定流量控制特性。 | ||||||
| 64 | 配管破断控制阀装置 | CN01801003.2 | 2001-05-15 | CN1198058C | 2005-04-20 | 仮屋正雄; 杉山玄六; 丰冈司 |
| 一种配管破断控制阀装置，由提动阀体构成主阀，由滑阀体构成导阀，其中，具有提动阀体(5)、滑阀体(6)、及小安全阀(7)；该提动阀体(5)作为使配管破断控制阀装置(200)的缸连接室(8)与配管连接室(9)开闭的主阀；该滑阀体(6)配置在连接提动阀体(5)的背压室(10)与配管连接室(9)之间的先导通道(15a、15b)，为由作为外部信号的先导压力作动的导阀；该小安全阀(7)具有过载安全阀的功能；另外，还在先导通道(15b)设置隔断从配管连接室(9)到背压室(10)的液压油流动的止回阀(39)。这样，在将先导压力作用于滑阀体的状态下也可从配管连接室将液压油供给到缸连接室，可在突然相反操作时无提动阀体开阀延迟地顺利进行操作。 | ||||||
| 65 | 用于纺织机械的筒子架和调整这样的筒子架的操控阀 | CN03128431.0 | 2003-04-28 | CN1453200A | 2003-11-05 | M·奥斯特洛; I·费尔茨 |
| 筒子架，它借助一个四连杆机构可转动地支承在一个被安置在一个纺织机械的机架上的并构成四连杆机构的固定连杆的支座上并且借助一个一方面铰接在该支座上并且另一方面铰接在一个活动连杆上的气动缸从一个下装料位置转动到一个上工作位置中，其特征在于，为了使筒子架(2)从工作位置转动到装料位置，气动缸(8)是一个可两端接受压缩空气的气动缸。 | ||||||
| 66 | 用于重型施工设备的液压阀控制装置 | CN02130408.4 | 2002-08-19 | CN1427183A | 2003-07-02 | 金镇昱 |
| 通过致动器下降时向致动器液体供应侧的通道中排出高压液压液体防止致动器的突然下降，提供了一个安装在液压泵与致动器间通道上并控制致动器的驱动的主阀芯轴筒，一个安装在主阀芯轴筒和致动器间通道上防止致动器下降的提升阀，一个安装在背压腔与提升阀回流路径间的阀芯轴筒，在切换时连通背压腔与主阀芯轴筒排泄口上的通道，和一个在阀芯轴筒切换时连通背压与回流通道的液体减流通道，以减少从致动器中排出的液压液体。 | ||||||
| 67 | 用于提升和下降一个负载的单块结构式并具有至少两个可电磁操作的比例行程阀元件的液压控制装置 | CN95196974.9 | 1995-11-16 | CN1079917C | 2002-02-27 | 哈特穆特·桑道; 维尔纳·舒马赫; 赖纳·特鲁克泽斯; 霍尔格·吕乌埃斯 |
| 本发明涉及一个液压控制装置，其具有至少两个可电磁操作的比例行程阀元件，一个单向阀和一个压力平衡装置以作为输入元件用于与负载压力无关地上举负载。该比例行程阀元件是相互平行安置的，其中，电磁驱动装置安置在相同的侧面上并特别在相同的高度上。同时，一个压力平衡活塞在第一比例行程阀元件的轴向滑块旁边同轴线地安置在一个支承两个阀元件的孔中。第一比例行程阀元件的轴向滑块通过一个弹簧支承在壳体上。为此，至少一个构件为了调节一个弹簧的张力而贯穿于压力平衡装置的活塞中导行。该液压控制装置具有小的结构体积。单个的阀元件相互到紧凑的组合设置；单个的滑块包括其控制部分设置得节省空间。单个的接头是双倍设置的，以便可以流动巨大的体积流。 | ||||||
| 68 | 管路破裂控制阀 | CN00802321.2 | 2000-10-18 | CN1327521A | 2001-12-19 | 仮屋正雄; 杉山玄六 |
| 结构具备:将管路破裂控制阀100的输入、输出口1安装在液压缸102的底部孔口上,使输入、输出口2通过执行元件管路105与控制阀103的执行元件口之一相连接,且作为主阀的提升阀阀芯5;由外部信号一先导压力而动作、具有使提升阀阀芯5动作的控制可变节流部6a的、作为先导阀的第1滑阀阀芯6;由先导压力使其动作、具有控制辅助流量的辅助可变节流部50a的第2滑阀阀芯50;具有过载溢流阀的功能的小溢流阀7。这样一来,作为一种管路破裂先导阀,具有必要的最低限的各种功能、且能降低压力损失,而且能减小整个阀的体积和能降低制造成本,同时,能获得平稳的流量控制特性且能在很宽的范围内设定流量控制特性。 | ||||||
| 69 | CONTROL DEVICE FOR A WORKING DEVICE CONNECTED TO A HYDRAULIC CIRCUIT | PCT/EP0200155 | 2002-01-10 | WO02055426A3 | 2002-09-19 | BRUCK PETER |
| The invention relates to a control device for a working device (12) connected to a hydraulic circuit (10), especially for a load fork (16) which can be raised and lowered with a working cylinder (14) in a fork-lift truck, comprising a valve control unit which moves into an adjustment position when the load fork (16) is lowered even when carrying a load (18), a predefinable maximum volume flow being maintained in the hydraulic circuit (10). By providing the valve control unit with a pressure regulator (26) limiting a pilot control pressure for the control valve (28), once a predefinable regulating pressure differential is reached in the hydraulic circuit, said control valve moves into a regulating position in order to maintain the maximum volume flow and the known flow control valve is replaced in the main flow by a pressure regulator (26) disposed in the pilot control circuit (40) and which only needs to be dimensioned for low volume flows. As a result, the control system can be constructed using simple, low-cost components which operate in a functionally reliable manner and enable stabile control behaviour. | ||||||
| 70 | PRESSURE VIBRATION DAMPING IN HYDRAULIC SYSTEMS | PCT/DE9601832 | 1996-09-27 | WO9713072A2 | 1997-04-10 | HAEUSSLER HUBERT; HRISTOV IVAN; STAIGER HANS; ZUERCHER JOSEF |
| The invention concerns a device for damping pressure vibrations in a hydraulic drive system, the device comprising a counterbalancing valve (11). According to the invention, a damping device comprising a throttle (29) and a pressure accumulator (14) is provided in a branch (13) of the control pressure line (12) in order to open the counterbalancing valve (14). The pressure accumulator (14) comprises one or a plurality of chambers into which a filler of closed-cell elastomer material is introduced so as to fill the chamber(s). | ||||||
| 71 | Construction machine | US14802277 | 2015-07-17 | US10047771B2 | 2018-08-14 | Hidenori Tanaka; Kensuke Ishikura; Koji Ueda; Takaaki Izuka |
| A hydraulic excavator includes control valves connected to a head-side chamber of a boom cylinder, an operating unit configured to switch the control valves, lock valves each provided between the head-side chamber and each of the control valves, and an operation control unit that controls the operation of the lock valves. The lock valves each have a valve element that is configured to move between a locking position at which the discharge of hydraulic oil from the head-side chamber is restricted and an unlocking position at which the discharge of the hydraulic oil from the head-side chamber is allowed. The operation control unit controls the operation of the lock valves so that the valve elements move from the locking position to the unlocking position at different points in time when the operating unit is operated. | ||||||
| 72 | HYDRAULIC SYSTEM AND METHOD FOR REDUCING BOOM BOUNCE WITH COUNTER-BALANCE PROTECTION | US15804542 | 2017-11-06 | US20180156243A1 | 2018-06-07 | Meng (Rachel) WANG |
| A hydraulic system (600) and method for reducing boom dynamics of a boom (30), while providing counter-balance valve protection, includes a hydraulic cylinder (110), first and second counter-balance valves (300, 400), first and second control valves (700, 800), and a selection valve set (850). The selection valve set is adapted to self-configure to a first configuration and to a second configuration when a net load (90) is supported by a first chamber (116, 118) and a second chamber (118, 116) of the hydraulic cylinder, respectively. When the selection valve set is enabled in the first and second configurations, the second and first control valve may fluctuate hydraulic fluid flow to the second and first chamber, respectively, to produce a vibratory response (950) that counters environmental vibrations (960) of the boom. When the selection valve set is not enabled, the first and second counter-balance valves are adapted to provide the hydraulic cylinder with conventional counter-balance valve protection. | ||||||
| 73 | Method to detect hydraulic valve failure in hydraulic system | US14785520 | 2014-04-21 | US09890799B2 | 2018-02-13 | Ralf Gomm; Christian Josefsson |
| According to one aspect of the invention, a hydraulic system includes a controller connected to an operator interface, a pump operable in a first direction for supplying pressurized fluid, and a load-holding valve connected between the pump and a port for connection to an actuator. The load-holding valve may be controlled by the controller and operative in a first position to allow flow to the actuator to operate the actuator against a load and operative in a second position to block load-induced return flow from the actuator to the pump. The controller may be configured to receive a requested actuator stop, to control the first valve to move to the second position in response to the requested actuator stop, to monitor a first system condition in response to the requested actuator stop, to evaluate the monitored system condition with a prescribed criteria, and to determine whether or not to initiate a back-up control routine based on the evaluation. | ||||||
| 74 | LINEAR ACTUATOR ASSEMBLY AND SYSTEM | US15315592 | 2015-06-02 | US20170114807A1 | 2017-04-27 | Thomas AFSHARI |
| A linear actuator system includes a linear actuator and an integrated pump assembly connected to the linear actuator to provide fluid to operate the linear actuator. The integrated pump assembly includes a pump with two fluid drivers, each fluid driver comprising a prime mover and a fluid displacement assembly to be driven by the prime mover such that fluid is transferred from a first port of the pump to a second port of the pump. The pump assembly also includes two valve assembles to isolate the pump from the system. The linear actuator system also includes a controller that establishes the pump in a normal mode of operation in which the prime movers are independently driven and switches to a fail-safe mode of operation in which only one prime mover is operated. | ||||||
| 75 | HYDRAULIC SIGNAL CONTROL SYSTEM AND METHOD | US14806406 | 2015-07-22 | US20170023149A1 | 2017-01-26 | Thomas Edward Johnson |
| In an embodiment, a tangible, non-transitory computer-readable media stores computer instructions executable by a processor and configured to increase a first signal pressure to a first actuating element of a directional control valve until the directional control valve is about to shift positions. The first signal pressure is greater than a second signal pressure to a second actuating element of the directional control valve by a signal pressure differential. The computer instructions are also configured to increase the first and second signal pressures equally while maintaining the signal pressure differential to cause a first pilot stage check valve and a second pilot stage check valve to shift positions, and, within a threshold time thereafter, increase the first signal pressure while maintaining the second signal pressure to increase the signal pressure differential to a value sufficient to cause the directional control valve to shift positions. | ||||||
| 76 | Fluid pressure control device | US14384399 | 2013-03-25 | US09518378B2 | 2016-12-13 | Tooru Takeuchi |
| A fluid pressure control device includes a switching valve that operates in conjunction with a control valve by a pilot pressure to switch an operation of an operated check valve. The switching valve includes a spool that moves according to the pilot pressure of a pilot chamber, and a piston that is accommodated in the pilot chamber and imparts a thrust force to the spool upon receiving the pilot pressure. The piston includes a first piston that is slidingly accommodated in the pilot chamber and is acted upon by the pilot pressure, and a second piston whose distal end faces the spool and is inserted into an accommodating hole formed in the first piston. A spherical protrusion is provided on a center of either one of a bottom surface of the accommodating hole of the first piston and a back surface of the second piston. | ||||||
| 77 | Load energy assist and horsepower management system | US13890565 | 2013-05-09 | US09382923B2 | 2016-07-05 | Jerry Faye Carlin; Robin Francis Ireton; Wade Leo Gehlhoff; Leif Pedersen |
| A hydraulic circuit for lifting and lowering a load is disclosed. The hydraulic circuit may include a hydraulic pump, a fluid reservoir, a load-sense valve, and a hydraulic actuator having a first chamber and a second chamber. The hydraulic circuit may also include a first control valve assembly having first and second lowering positions, the valve being disposed between the hydraulic pump and the hydraulic actuator. A second control valve assembly may also be provided that is disposed between the first control valve assembly and the first chamber of the hydraulic actuator. In one embodiment, the second control valve assembly has a first position and a second position. In one embodiment, the load can be selectively lowered by the hydraulic circuit without use of the hydraulic pump when the first control valve assembly is in the first lowering position and the second control valve assembly is in the second position. | ||||||
| 78 | Valve Connected To A Feed Circuit, A Feed Circuit Comprising Such A Valve And A Feeding Method Operating Such A Feed Circuit | US14975038 | 2015-12-18 | US20160178069A1 | 2016-06-23 | Alain CLER; Yves LAMIRAND; Matthieu BARDIN; Christophe BONDRAN |
| This valve includes a first chamber, a second chamber, a seat with a liquid passage, a plug movable between i) an open position and ii) a closed position, and a biasing member for urging the plug toward the closed position. The valve includes an actuating member having a face which sustains an actuating pressure. The actuating member is movable between i) an actuation position for opening the plug and ii) a rest position. The valve operates, selectively: in a feed mode, where the plug is open and the actuating member is at rest, the liquid flowing in one direction throughout the second chamber, or in a latch mode, where the plug is closed and the actuating member is at rest, no liquid flowing in the valve, or in a drain mode, where the plug is open, the liquid flowing in the reverse direction throughout the second chamber. | ||||||
| 79 | Multi-functional proportional control valve for hydraulic suspension system for vehicle | US14205110 | 2014-03-11 | US09322416B2 | 2016-04-26 | Markus Bissbort; Joel Mekkes; Damiano Roberti; Tomasz Slawinski |
| A hydraulic suspension system includes a suspension cylinder, a pump, and a control valve therebetween. The control valve includes a spool reciprocally movable between a pump flow position and a tank flow position in which a control port of the control valve is in communication with a pump and a tank, respectively. A piloted logic element in fluid communication with and interposed between the control valve and the suspension cylinder is selectively movable between a through-flow position in which fluid can flow in either direction between a chamber of the suspension cylinder and the control port of the control valve and a blocked position in which fluid is prevented from flowing in or out of the chamber of the suspension cylinder. The logic element is biased to the blocking position, moving to the through-flow position when subjected to a crack pressure delivered from the control port of the control valve. | ||||||
| 80 | SELF-CONTAINED ENERGY EFFICIENT HYDRAULIC ACTUATOR SYSTEM | US14511463 | 2014-10-10 | US20160102685A1 | 2016-04-14 | Mark Vincent Chester |
| The self-contained energy efficient hydraulic actuator system of the present invention includes a hydraulic cylinder, a servo motor that is configured to produce rated torque from zero RPM to maximum rated RPM with rotor speed/position feedback to a servo motor, a pump, and a solenoid valve that enables the hydraulic cylinder to maintain its position without the motor running. The system has the ability to hold a load in place without motor operation via the use of the solenoid valve, and therefore saves energy and extends the motor lifetime by minimizing the motor running time. | ||||||
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