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公开(公告)号：US12055167B2
公开(公告)日：2024-08-06
申请号：US17506112
申请日：2021-10-20
申请人： Robert Bosch GmbH
发明人： Royce Gerngross , Jim E. Diehl , Oliver Gerhard , Reiner Knoell
CPC分类号： F15B21/14 , F15B1/024 , F15B7/006 , F15B21/006 , F15B1/033 , F15B7/008 , F15B7/10 , F15B11/08 , F15B15/12 , F15B2201/411 , F15B2201/413 , F15B2211/20515 , F15B2211/20546 , F15B2211/20561 , F15B2211/20576 , F15B2211/20584 , F15B2211/212 , F15B2211/27 , F15B2211/41572 , F15B2211/50518 , F15B2211/50527 , F15B2211/5157 , F15B2211/611 , F15B2211/613 , F15B2211/615 , F15B2211/625 , F15B2211/6651 , F15B2211/7054 , F15B2211/7058 , F15B2211/7128 , F15B2211/88
摘要： A hydraulic circuit includes a prime mover that is configured to generate an oscillating flow of hydraulic fluid, and an actuator that is driven by the prime mover and configured to provide oscillating motion and to be connected to a load in each direction of the motion. The hydraulic circuit also includes a reclamation device that is disposed in the hydraulic circuit between the prime mover and the actuator. The reclamation device captures and stores a portion of hydraulic fluid displaced from the actuator during a transition between opposed motions, where the portion of hydraulic fluid corresponds to an amount of hydraulic fluid equal to a volume of fluid required to compensate for compression of fluid within the hydraulic circuit due to system pressure and load pressure. The stored fluid is used by the circuit in a subsequent motion.
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公开(公告)号：US09969479B2
公开(公告)日：2018-05-15
申请号：US14343948
申请日：2011-09-09
申请人： Jan Kees De Bruin , Rik Roemen , Bart Van Der Ven
发明人： Jan Kees De Bruin , Rik Roemen , Bart Van Der Ven
CPC分类号： B63H25/22 , F15B11/003 , F15B2211/50527
摘要： A novel design of a hydraulic steering arrangement for a thruster of a marine vessel is specifically designed for thrusters intended to operate in an arctic environment where ice is present. To meet the arctic demands the steering arrangement is provided with a cross-over safety block arranged close to the hydraulic steering motor for absorbing the torque subjected to the thruster by ice for instance.
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公开(公告)号：US09897120B2
公开(公告)日：2018-02-20
申请号：US14753600
申请日：2015-06-29
申请人： Caterpillar Inc.
发明人： Jiao Zhang , Tonglin Shang , Peter Spring , Pengfei Ma , Randal Peterson , Rustu Cesur
CPC分类号： F15B21/14 , E02F9/123 , E02F9/2217 , E02F9/2296 , F15B1/02 , F15B1/033 , F15B11/024 , F15B2011/0243 , F15B2011/0246 , F15B2211/205 , F15B2211/212 , F15B2211/30575 , F15B2211/50527 , F15B2211/50554 , F15B2211/511 , F15B2211/613 , F15B2211/625 , F15B2211/7058 , F15B2211/88
摘要： A hydraulic system for a machine is disclosed. The system may have a pump and a motor driven by pressurized fluid from the pump. An accumulator is configured to receive fluid discharged from the motor and to discharge fluid to the motor. The system may include a first valve to selectively communicate the higher pressure of conduits coupled between the pump and motor to the accumulator. A second valve and a third valve can be used to facilitate charging and discharging of the accumulator. The system may include a controller configured to implement a plurality of modes of operation, which each mode of operation may include a different combination of motor deceleration and motor acceleration segments during which the accumulator receives and discharges fluid, respectively. An input may be used to determine the segment of the work cycle.
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公开(公告)号：US09249879B2
公开(公告)日：2016-02-02
申请号：US13805913
申请日：2011-07-26
IPC分类号： F16D31/02 , F16H61/4043 , F16H61/4052 , F16H61/4061 , E02F9/12 , E02F9/22 , F15B11/04 , E02F3/96
CPC分类号： F16H61/4043 , E02F3/962 , E02F9/123 , E02F9/128 , E02F9/2282 , E02F9/2285 , E02F9/2296 , F15B11/0406 , F15B2211/20546 , F15B2211/50527 , F15B2211/613 , F15B2211/7058 , F16H61/4052 , F16H61/4061
摘要： A hydraulic drive system designed so that while maintaining intact a structure of a relief valve having a shockless function, the drive unit hydraulic drive system facilitates changing a driving pressure or braking pressure of a hydraulic swing motor and hence, changing a maximum driving torque or braking torque of the hydraulic swing motor. Inside a swing motor unit is arranged a first swinging relief valve provided with a shockless function to limit a driving pressure or braking pressure of the hydraulic swing motor in order to prevent the pressure from exceeding a first setting pressure. Also, a second swinging relief valve is provided for limiting the driving pressure or braking pressure of the hydraulic swing motor in order to prevent the pressure from exceeding a second setting pressure that is lower than the first setting pressure.
摘要翻译： 一种液压驱动系统，其设计成在保持完整的具有无震动功能的安全阀的结构的同时，驱动单元液压驱动系统有助于改变液压回转马达的驱动压力或制动压力，因此改变最大驱动转矩或制动 液压回转马达的扭矩。 在摆动马达单元内设置有第一摆动释放阀，其具有无震动功能，以限制液压摆动马达的驱动压力或制动压力，以防止压力超过第一设定压力。 而且，为了防止压力超过低于第一设定压力的第二设定压力，设置有用于限制液压回转马达的驱动压力或制动压力的第二摆动安全阀。
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公开(公告)号：US09080310B2
公开(公告)日：2015-07-14
申请号：US13278556
申请日：2011-10-21
IPC分类号： F16D31/02 , F15B13/042 , E02F9/22 , F15B11/00 , F15B11/024 , F15B11/042 , F15B7/00
CPC分类号： E02F9/2217 , E02F9/2235 , E02F9/2285 , E02F9/2289 , F15B7/006 , F15B11/003 , F15B11/024 , F15B11/0423 , F15B2211/20553 , F15B2211/20561 , F15B2211/20569 , F15B2211/27 , F15B2211/30515 , F15B2211/3058 , F15B2211/50527 , F15B2211/50563 , F15B2211/613 , F15B2211/625 , F15B2211/6346 , F15B2211/6652 , F15B2211/761 , F15B2211/785 , F15B2211/88 , Y10T137/0379 , Y10T137/85986
摘要： A hydraulic system is disclosed that has first and second passages connecting a pump to an actuator in closed-loop manner, and first and second load-holding valves within the first and second passages. The hydraulic system may also have a regeneration valve connected to the first and second passages between the actuator and the first and second load-holding valves to selectively connect the first and second passages. The hydraulic system may further have a controller configured to cause a control valve to simultaneous move the first and second load-holding valves toward flow-blocking positions when pump displacement is about zero. The controller may also be configured to selectively cause the regeneration valve to connect the first and second passages when pump displacement is non-zero, and to cause only one of the first and second load-holding valves to move to its flow-blocking position when the regeneration valve connects the first and second passages.
摘要翻译： 公开了一种液压系统，其具有以闭环方式将泵连接到致动器的第一和第二通道以及第一和第二通道内的第一和第二负载保持阀。 液压系统还可以具有连接到致动器和第一和第二负载保持阀之间的第一和第二通道的再生阀，以选择性地连接第一和第二通道。 液压系统还可以具有控制器，该控制器构造成当泵排量约为零时使控制阀同时将第一和第二负载保持阀移动到阻流位置。 控制器还可以被配置为当泵排量不为零时选择性地使再生阀连接第一通道和第二通道，并且仅当第一和第二负载保持阀中的一个移动到其阻流位置时， 再生阀连接第一和第二通道。
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公开(公告)号：US08997626B2
公开(公告)日：2015-04-07
申请号：US13079968
申请日：2011-04-05
申请人： David J. Anderson
发明人： David J. Anderson
CPC分类号： F16K17/0406 , F15B15/18 , F15B2211/20515 , F15B2211/20561 , F15B2211/3051 , F15B2211/50527 , F15B2211/785 , F16K15/044 , F16K17/08
摘要： A manual release valve is provided for a electro-hydraulic actuator of the type including a piston movable in a cylinder and defining a piston side chamber and a rod side chamber, the valve threadedly attached to the housing of the actuator and extending at least partially within the fluid housing conduits, the valve moveable from a closed position fully seated in the housing to an open position for fluidly connecting both the piston side chamber and the rod side chamber to the reservoir, the valve further including a pressure relief portion that is operable when the valve is in the closed position for relieving pressure from at least one of the piston side chamber or the rod side chamber.
摘要翻译： 提供了一种用于电动液压致动器的手动释放阀，其包括可在气缸中移动并限定活塞侧室和杆侧室的活塞，所述活塞螺纹连接到致动器的壳体并且至少部分地延伸 所述流体壳体导管，所述阀可以从完全安置在所述壳体中的关闭位置移动到用于将所述活塞侧室和所述杆侧室两者流体连接到所述储存器的打开位置，所述阀还包括压力释放部分， 阀处于关闭位置，用于从活塞侧室或杆侧室中的至少一个释放压力。
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公开(公告)号：US08863509B2
公开(公告)日：2014-10-21
申请号：US13222990
申请日：2011-08-31
CPC分类号： F16D48/02 , E02F9/2228 , E02F9/2267 , E02F9/2289 , E02F9/2292 , E02F9/2296 , F15B7/006 , F15B2211/20523 , F15B2211/20553 , F15B2211/20561 , F15B2211/20569 , F15B2211/27 , F15B2211/30515 , F15B2211/50527 , F15B2211/613 , F15B2211/7053 , Y10T137/7858
摘要： A hydraulic system is disclosed. The hydraulic system may have a pump, a hydraulic actuator, and first and second passages fluidly connecting the pump to the hydraulic actuator in a closed-loop. The hydraulic system may also have a control valve, and a load-holding valve configured to selectively lock movement of the hydraulic actuator. The load-holding valve may include a valve block at least partially defining a pump passage, an actuator passage, a control passage, a restricted passage connecting the actuator passage and the control passage, and a bypass passage connecting the actuator passage and the control passage. The load-holding valve may also include a valve element movable between a first position at which flow between the pump and the hydraulic actuator is blocked, and a second position at which fluid is allowed to flow between the pump and the hydraulic actuator, the valve element being spring-biased toward the first position.
摘要翻译： 公开了一种液压系统。 液压系统可以具有泵，液压致动器以及在闭环中将泵流体地连接到液压致动器的第一和第二通路。 液压系统还可以具有控制阀和构造成选择性地锁定液压致动器的运动的负载保持阀。 负载保持阀可以包括至少部分地限定泵通道的阀块，致动器通道，控制通道，连接致动器通道和控制通道的限制通道以及连接致动器通道和控制通道的旁通通道 。 负载保持阀还可以包括阀元件，该阀元件可以在泵和液压致动器之间的流动被阻挡的第一位置和允许流体在泵和液压致动器之间流动的第二位置之间移动，阀 元件被弹簧偏置到第一位置。
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公开(公告)号：US08776511B2
公开(公告)日：2014-07-15
申请号：US13171146
申请日：2011-06-28
申请人： Jiao Zhang , Dayao Chen , Pengfei Ma , Tonglin Shang , Lawrence J. Tognetti , Jeffrey L. Kuehn
发明人： Jiao Zhang , Dayao Chen , Pengfei Ma , Tonglin Shang , Lawrence J. Tognetti , Jeffrey L. Kuehn
CPC分类号： E02F9/123 , E02F9/2217 , E02F9/2296 , F15B21/14 , F15B2211/20546 , F15B2211/212 , F15B2211/30575 , F15B2211/50527 , F15B2211/7058 , F15B2211/88
摘要： A swing energy recovery system for a machine is disclosed. The swing energy recovery system may have a pump configured to pressurize fluid, a motor driven by a flow of pressurized fluid from the pump, and an energy recovery arrangement configured to receive pressurized fluid discharged from the motor and selectively supply pressurized fluid to the motor. The swing energy recovery system may also have a pressure relief valve associated with the motor, and a controller in communication with the energy recovery arrangement and the pressure relief valve. The controller may be configured to selectively adjust a setting of the pressure relief valve based on an operating condition of the energy recovery arrangement.
摘要翻译： 公开了一种用于机器的摆动能量回收系统。 回转能量回收系统可以具有构造成对流体加压的泵，由来自泵的加压流体流驱动的马达，以及配置成接收从马达排出的加压流体并选择性地将加压流体供应到马达的能量回收装置。 回转能量回收系统还可以具有与电动机相关联的减压阀，以及与能量回收装置和减压阀连通的控制器。 控制器可以被配置为基于能量回收装置的操作条件来选择性地调节压力释放阀的设定。
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公开(公告)号：US08720197B2
公开(公告)日：2014-05-13
申请号：US12867367
申请日：2009-02-11
申请人： Bengt-Goran Persson , Dale Vanderlaan , Lew Kasper
发明人： Bengt-Goran Persson , Dale Vanderlaan , Lew Kasper
IPC分类号： F15B21/08
CPC分类号： F15B7/006 , E02F9/2217 , E02F9/2242 , E02F9/2296 , F15B21/08 , F15B2211/20515 , F15B2211/20538 , F15B2211/20561 , F15B2211/20569 , F15B2211/20584 , F15B2211/50527 , F15B2211/613 , F15B2211/62 , F15B2211/633 , F15B2211/6346 , F15B2211/7053
摘要： A flow management system capable of providing adjustable hydraulic fluid flow or pressure at a common line to supply bidirectional pumps in electro-hydrostatic actuation systems and conditioning re-circulated hydraulic fluid. The system enables flow sharing between multiple actuation systems and minimization of energy consumption by a power-on-demand approach and/or electrical energy regeneration while eliminating the need for an accumulator. The system has particular application to electro-hydrostatic actuation systems that typically include bi-directional electric motor driven pumps and unbalanced hydraulic actuators connected within closed circuits to provide work output against external loads and reversely recover energy from externally applied loads.
摘要翻译： 一种流量管理系统，其能够在公共管线处提供可调节的液压流体流量或压力，以在电静液压致动系统中提供双向泵并调节再循环的液压流体。 该系统能够实现多个致动系统之间的流量共享，并且通过按需点火方法和/或电能再生来最小化能量消耗，同时消除对蓄能器的需要。 该系统特别适用于静电驱动系统，通常包括双向电动机驱动的泵和连接在闭合回路内的不平衡液压致动器，以提供抵抗外部负载的工作输出，并从外部施加的负载反向回收能量。
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公开(公告)号：US20140013753A1
公开(公告)日：2014-01-16
申请号：US14007978
申请日：2012-04-19
IPC分类号： E02F9/12
CPC分类号： E02F9/123 , E02F9/2091 , E02F9/2095 , E02F9/2217 , F15B21/14 , F15B2211/3116 , F15B2211/50527 , F15B2211/6313 , F15B2211/6316 , F15B2211/6336 , F15B2211/7058 , F15B2211/88
摘要： A slewing-type working machine includes: a hydraulic motor having first and second ports and driving an upper slewing body to slew it; a hydraulic pump; a slewing operating device including an operating member; a control valve controlling the hydraulic motor based on an operation signal of the slewing operating device; first and second pipe-lines connecting the first and second ports of the hydraulic motor to the control valve; communication switching devices switchable between communication and cutoff between both pipe-lines and a tank; a slewing electric motor; an electric storage device; and a controller. During a slewing operation, the controller brings the communication switching devices into a communicated state and performs regenerative control by issuing a command on a regeneration amount corresponding to a reduction in back pressure by the communication switching devices in the communicated state to the slewing electric motor.
摘要翻译： 一种回转式作业机械，包括：液压马达，其具有第一和第二端口，并驱动上部回转体以将其旋转; 液压泵; 包括操作构件的回转操作装置; 基于所述回转操作装置的操作信号控制所述液压马达的控制阀; 将液压马达的第一和第二端口连接到控制阀的第一和第二管路; 通信切换装置可在两条管线和一个罐之间在通信和切断之间切换; 回转电动机; 蓄电装置; 和控制器。 在回转操作期间，控制器使通信切换装置进入通信状态，并通过将通信状态下的通信切换装置的背压降低对应的再生量发出到回转电动机，进行再生控制。
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