公开(公告)号：US20190186644A1

公开(公告)日：2019-06-20

申请号：US16281947

申请日：2019-02-21

申请人： GOODRICH CORPORATION

发明人： Matthew D. Salois ,  Matthew S. Campbell

IPC分类号： F16K11/22 ,  F16K11/065 ,  F16K17/34 ,  F16K17/00 ,  B64D25/00 ,  F15B13/04 ,  F15B13/02 ,  F16K31/122

CPC分类号： F16K11/22 ,  B64D25/00 ,  F15B13/028 ,  F15B13/0402 ,  F15B2211/3052 ,  F16K11/0655 ,  F16K17/00 ,  F16K17/003 ,  F16K17/34 ,  F16K31/122 ,  F16K31/1223

摘要： A method of sequencing a pyrotechnic system includes igniting at least one of a first energetic coupled to a first inlet of a one way sequence termination arrangement, and a second energetic coupled to a second inlet of the one way sequence termination arrangement, fluidically coupling the first inlet to an outlet of the one way sequence termination arrangement in response to the second energetic being ignited before the first energetic is ignited, and blocking fluidic coupling between the second inlet and the outlet in response to the first energetic being ignited before the second energetic is ignited.

公开(公告)号：US20170234338A1

公开(公告)日：2017-08-17

申请号：US15501405

申请日：2015-07-21

申请人： Robert Bosch GmbH

发明人： Carola SPIELVOGEL ,  Michael MAST ,  Olivier KRAJKA ,  Paul Luis HERNANDEZ LADERA ,  Dietmar BANTLE

IPC分类号： F15B21/14 ,  F02N7/06 ,  F15B11/16 ,  E02F9/22 ,  F15B1/02 ,  F15B1/033

CPC分类号： F15B21/14 ,  B60K6/12 ,  B60K2006/126 ,  E02F9/2066 ,  E02F9/2217 ,  E02F9/2232 ,  E02F9/2246 ,  E02F9/2267 ,  E02F9/2275 ,  E02F9/2292 ,  E02F9/2296 ,  F02N7/06 ,  F02N7/08 ,  F04B1/20 ,  F04B49/22 ,  F15B1/024 ,  F15B1/027 ,  F15B1/033 ,  F15B11/161 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/20553 ,  F15B2211/20561 ,  F15B2211/20569 ,  F15B2211/20576 ,  F15B2211/212 ,  F15B2211/3052 ,  F15B2211/3053 ,  F15B2211/55 ,  F15B2211/6051 ,  F15B2211/6054 ,  F15B2211/6055 ,  F15B2211/6057 ,  F15B2211/625 ,  F15B2211/653 ,  F15B2211/71 ,  F15B2211/781 ,  F15B2211/88 ,  Y02T10/6208

摘要： A hydrostatic drive includes a diesel engine and a hydrostatic adjustable machine which supplies multiple consumers in normal operation as a pump. The machine has a pressure/flow regulator to which is communicated, according to the load-sensing principle, the highest load pressure of the consumers, in particular when the machine is operated as a pump. In order to realize a start/stop function of the diesel engine, a previously charged high-pressure reservoir supplies the hydrostatic machine, which then acts as a starter motor for the diesel engine. In order to switch from pump to starter motor, the hydro-machine is adjusted over zero. In order for this switch to take place quickly and reliably, the pressure/flow regulator is deactivated by means of a switching valve and the adjustment device is supplied with an adjustment pressure medium via the switching valve, which medium is taken from the high-pressure reservoir or from an auxiliary reservoir.

公开(公告)号：US20170184139A1

公开(公告)日：2017-06-29

申请号：US15312959

申请日：2015-05-15

申请人： Parker-Hannifin Corporation

发明人： Vivek BHASKAR ,  Bjoern ERIKSSON ,  Ralf GOMM

IPC分类号： F15B21/08 ,  F15B13/02 ,  E02F9/20 ,  F15B19/00 ,  E02F9/22 ,  F15B11/08 ,  F15B13/04

CPC分类号： F15B21/087 ,  E02F3/32 ,  E02F9/2095 ,  E02F9/2203 ,  E02F9/2217 ,  E02F9/2228 ,  E02F9/2271 ,  E02F9/2289 ,  F15B7/006 ,  F15B11/024 ,  F15B11/08 ,  F15B13/028 ,  F15B13/0401 ,  F15B19/005 ,  F15B2211/20515 ,  F15B2211/20538 ,  F15B2211/20561 ,  F15B2211/27 ,  F15B2211/30515 ,  F15B2211/3052 ,  F15B2211/3058 ,  F15B2211/41581 ,  F15B2211/613 ,  F15B2211/63 ,  F15B2211/6336 ,  F15B2211/634 ,  F15B2211/6346 ,  F15B2211/7051 ,  F15B2211/7053 ,  F15B2211/761

摘要： An electro-hydraulic actuation system includes a regeneration valve in fluid communication with a first fluid chamber and a second fluid chamber of a hydraulic actuator, and a dump valve is in fluid communication with the second fluid chamber and a fluid reservoir. A pump provides a flow of fluid to the first and second fluid chambers, a displacement of the pump controlling a velocity of the actuator during motion in the retraction and extension directions. An electric motor drives the pump, and a controller controls a state of the regeneration valve and the dump valve. At least one feedback device senses a system condition and provides a respective feedback signal indicative of the sensed system condition to the controller, the controller responsive to the feedback signal to determine an occurrence of an over-center load condition and control a state of the regeneration valve and the dump valve in response to the occurrence to maintain the velocity of the actuator.

公开(公告)号：US20170051768A1

公开(公告)日：2017-02-23

申请号：US15307271

申请日：2015-03-06

申请人： FESTO AG & Co. KG

发明人： Josef Sauer ,  Alexander Vargas ,  Manfred Jainczyk ,  Eckard Roos ,  Peter Beil

IPC分类号： F15B20/00 ,  F17C13/04 ,  F15B19/00

CPC分类号： F15B20/008 ,  F15B19/00 ,  F15B2211/3052 ,  F15B2211/3056 ,  F15B2211/30565 ,  F15B2211/6313 ,  F15B2211/634 ,  F15B2211/855 ,  F15B2211/8855 ,  F17C13/04 ,  F17C2250/0626

摘要： A compressed-air system having a safety function and a method for operating such a compressed-air system. The compressed-air system contains two working valves, which each can selectively assume an aerating position that aerates a load and a venting position that vents the load. Both working valves are redundantly connected on the output side to the load by means of a separating device. The separating device allows one or the other of the working valves to be separated, while the aeration of the load is maintained, in order to subject the one or the other working valve to an examination of the switching function of the one or the other working valve.

摘要翻译： 具有安全功能的压缩空气系统和用于操作这种压缩空气系统的方法。 压缩空气系统包含两个工作阀，每个工作阀可以选择性地承担通风负载的通风位置和排出负载的排气位置。 两个工作阀通过分离装置在输出侧冗余连接到负载。 分离装置允许一个或另一个工作阀被分离，同时保持负载通气，以便使一个或另一个工作阀检查一个或另一个工作的切换功能 阀。

公开(公告)号：US20160097404A1

公开(公告)日：2016-04-07

申请号：US14507824

申请日：2014-10-06

申请人： Amtai Medical Equipment, Inc.

发明人： Jyh-Wei Liang ,  Wei-Li Wu ,  Chien-Cheng Su ,  Wei-Jhe Chen

IPC分类号： F15B11/17 ,  F04B53/10 ,  F15D1/00

CPC分类号： F04B23/08 ,  A61G13/02 ,  A61G13/06 ,  F04B23/02 ,  F04B23/10 ,  F04B23/103 ,  F04B23/106 ,  F04B23/12 ,  F04B23/14 ,  F04B49/22 ,  F04B53/10 ,  F15B11/17 ,  F15B2211/20507 ,  F15B2211/20515 ,  F15B2211/20538 ,  F15B2211/20561 ,  F15B2211/20576 ,  F15B2211/3052 ,  F15D1/002 ,  F16K11/044 ,  Y10T137/2567 ,  Y10T137/2569

摘要： The present invention relates to a bidirectional output mixed hydraulic power system, which includes a hydraulic fluid that stores and contains therein a fluid tank; at least one electrical hydraulic pump connected to the fluid tank to draw in, pressurize, and output the hydraulic fluid; at least one mechanical hydraulic pump connected to the fluid tank to draw in, pressurize, and output the hydraulic fluid; at least two sequence check valves each connected to the electrical hydraulic pump and the mechanical hydraulic pump, each of the sequence check valves being set normally open in a first direction and preventing fluid returning in a second direction; and a dual pressure valve that is connected to the fluid tank and each of the sequence check valves for switching output direction of the hydraulic fluid.

摘要翻译： 双向输出混合液压动力系统技术领域本发明涉及一种双向输出混合液压动力系统，其包括储存并容纳流体箱的液压流体; 至少一个电动液压泵连接到流体箱以吸入，加压和输出液压流体; 连接到流体箱的至少一个机械液压泵吸入，加压和输出液压流体; 至少两个顺序止回阀，其各自连接到电动液压泵和机械液压泵，每个顺序止回阀在第一方向上设置为常开，并防止流体沿第二方向返回; 以及连接到流体箱和每个用于切换液压流体的输出方向的顺序止回阀的双重压力阀。

公开(公告)号：US09145660B2

公开(公告)日：2015-09-29

申请号：US13714017

申请日：2012-12-13

申请人： Caterpillar Inc.

发明人： Randal N. Peterson ,  Aleksandar M. Egelja ,  Rustu Cesur

IPC分类号： E02F9/22 ,  F15B11/042 ,  F15B20/00 ,  F15B21/04

CPC分类号： E02F9/2292 ,  E02F9/2235 ,  E02F9/2242 ,  E02F9/226 ,  E02F9/2296 ,  F15B11/0423 ,  F15B20/007 ,  F15B21/042 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/2656 ,  F15B2211/3052 ,  F15B2211/30595 ,  F15B2211/327 ,  F15B2211/50536 ,  F15B2211/62 ,  F15B2211/6309 ,  F15B2211/6346 ,  F15B2211/6652 ,  F15B2211/6658 ,  F15B2211/7135 ,  F15B2211/7142 ,  F15B2211/85 ,  F15B2211/8603 ,  F15B2211/8606

摘要： A hydraulic control system for a machine is disclosed. The hydraulic control system may have a tank, a pump configured to draw fluid from the tank and pressurize the fluid, an actuator, and a control valve configured to direct fluid from the pump to the actuator and from the actuator to the tank to move the actuator. The hydraulic system may also have a main relief valve movable away from a closed position to pass pressurized fluid to the tank when a pressure of the fluid directed to the actuator exceeds a first threshold pressure, and a controller in communication with the pump. The controller may be configured to selectively reduce a displacement of the pump after the main relief valve has moved away from the closed position when the pressure of the fluid directed to the actuator exceeds a second threshold pressure.

摘要翻译： 公开了一种用于机器的液压控制系统。 液压控制系统可以具有罐，泵被配置成从罐中抽出流体并对流体进行加压，致动器和控制阀被配置为将流体从泵引导到致动器并且从致动器引导到罐以移动 执行器。 液压系统还可以具有主动释放阀，其可在远离关闭位置移动，以便在被引导至致动器的流体的压力超过第一阈值压力时将加压流体传递到罐，以及与泵连通的控制器。 控制器可以被配置为当导向致动器的流体的压力超过第二阈值压力时，在主安全阀已经远离关闭位置移动之后选择性地减小泵的位移。

公开(公告)号：US20150068200A1

公开(公告)日：2015-03-12

申请号：US14540226

申请日：2014-11-13

申请人： SUMITOMO (S.H.I) CONSTRUCTION MACHINERY CO., LTD.

发明人： Hirofumi HASHIMOTO

IPC分类号： E02F9/22 ,  F15B11/00

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 including a group of directional control valves arranged in tandem; and a bleed-off valve arranged in the center bypass passage on a downstream side of the group, wherein each directional control valve includes a first internal passage causing the pressurized oil supplied to the directional control valve to flow out to the center bypass passage and a second internal passage 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 the pressurized oil discharged from the hydraulic pump to flow to the center bypass passage on the downstream 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.

摘要翻译： 一种用于建筑机械的液压回路，包括：一个中心旁通通道，包括一组串联布置的方向控制阀; 以及设置在所述组的下游侧的所述中央旁通通路的排泄阀，其中，各方向控制阀包括使供给到所述方向控制阀的加压油流出到所述中心旁通通路的第一内部通路， 第二内部通道将加压油供应到气缸端口，其中通过中心旁通通道和第一内部通道形成平行通道，使得从液压泵排出的加压油在下游流动到中心旁通通道 方向控制阀，其中第二内部通道将来自中心旁通通道的加压油通过阀芯和/或旁路通道的开口提供到气缸端口。

公开(公告)号：US20120216877A1

公开(公告)日：2012-08-30

申请号：US13037347

申请日：2011-02-28

申请人： Derek Scott Hall ,  Joshua Dean Graeve ,  Brian K. Kellogg ,  Eric Richard Anderson ,  Jeffrey William Dobchuk

发明人： Derek Scott Hall ,  Joshua Dean Graeve ,  Brian K. Kellogg ,  Eric Richard Anderson ,  Jeffrey William Dobchuk

IPC分类号： F16K35/14 ,  F16K31/00

CPC分类号： F15B20/008 ,  F15B2211/3052 ,  F15B2211/3127 ,  F15B2211/329 ,  F15B2211/355 ,  F15B2211/36 ,  F15B2211/6316 ,  F15B2211/6355 ,  F15B2211/8626 ,  F15B2211/8636 ,  Y10T137/0318 ,  Y10T137/0396 ,  Y10T137/87056 ,  Y10T137/87113

摘要： A fail-safe system and method for an electro-hydraulic system. The system includes a controller, sensor, directional control valve, interlock, hydraulic valve and movement actuator. The directional control valve moves when the controller is moved. The interlock is hydraulically coupled to the directional control valve; and is in active position when the directional control valve is moved, and in shutoff position when the directional control valve is not moved. The hydraulic valve has an input side coupled to a flow source and an output side coupled to a hydraulic function. The movement actuator moves the hydraulic valve to a desired position as directed by the controller when the interlock is in the active position, and does not move the hydraulic valve when the interlock is in the shutoff position. The sensor detects movement of the controller and sends a control signal to the first valve actuator.

摘要翻译： 电液系统的故障安全系统和方法。 该系统包括控制器，传感器，方向控制阀，互锁，液压阀和运动执行器。 当控制器移动时，方向控制阀移动。 互锁液压耦合到方向控制阀; 当方向控制阀移动时处于主动位置，当方向控制阀未移动时处于关闭位置。 液压阀具有联接到流动源的输入侧和联接到液压功能的输出侧。 当互锁处于活动位置时，运动致动器将液压阀移动到由控制器指示的期望位置，并且当互锁处于关闭位置时，运动致动器不移动液压阀。 传感器检测控制器的运动，并向第一阀门执行器发送控制信号。

公开(公告)号：US07272928B2

公开(公告)日：2007-09-25

申请号：US11439346

申请日：2006-05-24

申请人： Nobuei Ariga ,  Genroku Sugiyama ,  Hideaki Tanaka ,  Tsukasa Toyooka ,  Masaki Egashira ,  Takatoshi Ooki

发明人： Nobuei Ariga ,  Genroku Sugiyama ,  Hideaki Tanaka ,  Tsukasa Toyooka ,  Masaki Egashira ,  Takatoshi Ooki

IPC分类号： F16D31/02

CPC分类号： F15B11/17 ,  E02F9/2232 ,  E02F9/2235 ,  E02F9/2292 ,  E02F9/2296 ,  F04B23/06 ,  F04B49/08 ,  F15B11/165 ,  F15B2211/20553 ,  F15B2211/20584 ,  F15B2211/3052 ,  F15B2211/30525 ,  F15B2211/3059 ,  F15B2211/3116 ,  F15B2211/31576 ,  F15B2211/6054 ,  F15B2211/6055 ,  F15B2211/6309 ,  F15B2211/6343 ,  F15B2211/6656 ,  F15B2211/7051 ,  F15B2211/7058 ,  F15B2211/7135 ,  F15B2211/781

摘要： To keep one of three hydraulic pumps unaffected by variations in torque of the remaining hydraulic pumps when the three hydraulic pumps are used, displacements of the first and second hydraulic pumps are controlled based on their own delivery pressures P1,P2 and a pressure P3′ obtained by reducing through a reducing valve 14 a delivery pressure P3 from the third hydraulic pump, while a displacement of the third hydraulic pump 3 is controlled only by its own delivery pressure P3. The pressure oil delivered from the third hydraulic pump 3, therefore, remains unaffected by variations in delivery flow rates from the first and second hydraulic pumps 1,2, in other words, by variations in their torque consumptions, so that the third hydraulic pump is assured to provide a stable flow rate.

摘要翻译： 当使用三个液压泵时，为了保持三个液压泵中的一个不受剩余液压泵的扭矩变化的影响，第一和第二液压泵的位移基于其自身的输送压力P 1，P 2和压力P 3'，通过减压阀14从第三液压泵减小输送压力P 3，而第三液压泵3的排量仅由其自身的输送压力P 3控制。从第三液压泵输送的压力油 因此，如图3所示，不受来自第一和第二液压泵1,2的输送流量的变化的影响，换句话说，通过其扭矩消耗的变化，使得第三液压泵被确保提供稳定的流量。

公开(公告)号：US20060162543A1

公开(公告)日：2006-07-27

申请号：US10542201

申请日：2004-01-14

申请人： Toshihiro Abe ,  Yusuke Kajita ,  Kazunori Nakamura ,  Kouji Ishikawa ,  Hideo Karasawa

发明人： Toshihiro Abe ,  Yusuke Kajita ,  Kazunori Nakamura ,  Kouji Ishikawa ,  Hideo Karasawa

IPC分类号： F15B13/04

CPC分类号： F15B11/024 ,  E02F9/2203 ,  E02F9/2217 ,  E02F9/2235 ,  E02F9/2239 ,  E02F9/2285 ,  E02F9/2296 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/3052 ,  F15B2211/3116 ,  F15B2211/3133 ,  F15B2211/31576 ,  F15B2211/31582 ,  F15B2211/329 ,  F15B2211/6313 ,  F15B2211/6316 ,  Y02P80/13

摘要： A hydraulic circuit for a hydraulic working machine is composed of a main pump 21, a boom cylinder 11 arranged for extension or contraction by pressure oil from the main pump 21, a directional control valve 22 for controlling flows of pressure oil to be fed from the main pump 21 to a bottom chamber 11a and rod chamber 12b of the boom cylinder 11, a control unit 23 for performing a change-over control of the directional control valve 22, a pilot pump 24, a jack-up selector valve 25 for controlling a flow of pressure oil delivered from the pilot pump 24, a flow control valve 26 connected on an upstream side of the directional control valve 22 to a meter-in port of the directional control valve 22 such that the flow control valve 26 can be changed over by the jack-up selector valve 25, and a center bypass selector valve 27 connected on a downstream side of the directional control valve 22 to a center bypass port of the directional control valve 22 such that the center bypass selector valve 27 can be changed over by the jack-up selector valve 25. The hydraulic circuit performs a change-over of the jack-up selector valve 25 in accordance with a bottom pressure on the boom cylinder 11.

摘要翻译： 用于液压作业机的液压回路由主泵21，由主泵21的压力油而设置成伸缩的动臂缸11，用于控制从主泵21供给的压力油的流量的方向控制阀22 主泵21到动臂缸11的底部室11a和杆室12b，用于执行方向控制阀22的转换控制的控制单元23，先导泵24，自升式选择阀25 用于控制从先导泵24输送的压力油的流量，连接在方向控制阀22的上游侧的流量控制阀26到方向控制阀22的计量口，使得流量控制阀26可以 由上升换向阀25和由方向控制阀22的下游侧连接到方向控制阀22的中心旁通口的中央旁通选择阀27进行切换，使得中心旁路塞 转子阀27可以由自升式选择阀25切换。 液压回路根据悬臂液压缸11的底部压力进行自升式换向阀25的切换。