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    HYDRAULICALLY ACTUATED PISTON GUIDED IN A CYLINDER, AND HYDRAULIC WORKING TOOL
    2.
    发明申请
    HYDRAULICALLY ACTUATED PISTON GUIDED IN A CYLINDER, AND HYDRAULIC WORKING TOOL 审中-公开

    公开(公告)号：US20180319000A1

    公开(公告)日：2018-11-08

    申请号：US15772588

    申请日：2016-11-02

    申请人： GUSTAV KLAUKE GMBH

    发明人： Egbert Frenken ,  Andreas Lehr

    IPC分类号： B25F5/00 ,  F15B15/14 ,  F15B15/20 ,  F15B15/22

    CPC分类号： B25F5/005 ,  B23D29/002 ,  B25B27/026 ,  B25B27/10 ,  B26F1/34 ,  F15B15/1447 ,  F15B15/204 ,  F15B15/22 ,  F15B15/225 ,  F15B15/226 ,  F15B2211/7052 ,  F15B2211/755

    摘要： The invention relates to a hydraulically actuated piston (9) guided in a cylinder (8), and to a hydraulic working tool (1) having a working head (2), wherein the piston (9) has an impact surface (15) which borders an impact space (16) on the piston side provided between the piston (9) and the cylinder (8), and wherein hydraulic fluid (17) can act on the impact surface (15) by increasing the impact space (16) in order to move the piston (9) in an impact direction (r), and the piston (9) forms a limiting device (25) for a through-flow of the hydraulic fluid (17). According to the invention, in order to design a hydraulic piston guided in a cylinder or a hydraulic working tool in such a way that no undue signs of wear occur even during working processes with the sudden disappearance of the counter pressure, a hydraulic chamber (19) filled with the hydraulic fluid (17) is formed in the impact direction (r) after the limiting device (25), wherein a volume of the hydraulic chamber (19) is reduced according to the increase in the impact space (16), by means of the displacement of hydraulic fluid (17) out of the hydraulic chamber (19) and into the impact space (16) via the limiting device (25).

    Pyrotechnic actuator
    3.
    发明授权
    Pyrotechnic actuator 有权

    公开(公告)号：US09789846B2

    公开(公告)日：2017-10-17

    申请号：US14503030

    申请日：2014-09-30

    申请人： TK Holdings Inc.

    发明人： Jeremy M. Henck

    IPC分类号： F15B15/14 ,  B60R21/38 ,  F15B15/19 ,  F15B15/22

    CPC分类号： B60R21/38 ,  F15B15/1457 ,  F15B15/148 ,  F15B15/19 ,  F15B15/22

    摘要： A novel actuator contains a housing having a first end, a second end, and an inner wall. A piston rod assembly is contained within the housing, wherein the assembly contains a piston rod, a first end cap fixed at one end of the piston rod, and a second end cap fixed at an opposing end of the piston rod. An energy management device is constrained about an outer diameter of the first end cap, wherein upon actuation of the actuator, the energy management device may under predetermined conditions be deformed upon movement of said piston rod.

    Fluid pressure cylinder
    4.
    发明授权
    Fluid pressure cylinder 有权

    公开(公告)号：US09638221B2

    公开(公告)日：2017-05-02

    申请号：US14898152

    申请日：2014-06-26

    申请人： KYB Corporation

    发明人： Yuzo Masuta ,  Norio Yuzawa

    IPC分类号： F15B15/22 ,  F15B15/14 ,  B66F9/22

    CPC分类号： F15B15/22 ,  B66F9/22 ,  F15B15/1457 ,  F15B15/149

    摘要： A fluid pressure cylinder includes: a piston rod; a cushioning chamber that decreases in capacity in accordance with extension of the fluid pressure cylinder; a communication passage that allows the cushioning chamber and an in-rod chamber to communicate with each other; a throttle passage that exerts a cushioning function by applying resistance to a flow of a working fluid from the cushioning chamber to the in-rod chamber; a check valve that is provided in a piston, allows the in-rod chamber and a driving chamber to communicate with each other, and has a checking function for permitting only a flow of the working fluid from the in-rod chamber to the driving chamber; and a pilot passage that is formed in the piston and disables the checking function by guiding a pressure in the cushioning chamber to the check valve as a pilot pressure.

    FLUID PRESSURE CYLINDER
    5.
    发明申请
    FLUID PRESSURE CYLINDER 有权
    流体压力缸

    公开(公告)号：US20160138622A1

    公开(公告)日：2016-05-19

    申请号：US14898152

    申请日：2014-06-26

    申请人： KYB Corporation

    发明人： Yuzo MASUTA ,  Norio YUZAWA

    IPC分类号： F15B15/22 ,  F15B15/14

    CPC分类号： F15B15/22 ,  B66F9/22 ,  F15B15/1457 ,  F15B15/149

    摘要： A fluid pressure cylinder includes: a piston rod; a cushioning chamber that decreases in capacity in accordance with extension of the fluid pressure cylinder; a communication passage that allows the cushioning chamber and an in-rod chamber to communicate with each other; a throttle passage that exerts a cushioning function by applying resistance to a flow of a working fluid from the cushioning chamber to the in-rod chamber; a check valve that is provided in a piston, allows the in-rod chamber and a driving chamber to communicate with each other, and has a checking function for permitting only a flow of the working fluid from the in-rod chamber to the driving chamber; and a pilot passage that is formed in the piston and disables the checking function by guiding a pressure in the cushioning chamber to the check valve as a pilot pressure.

    摘要翻译： 流体压力缸包括：活塞杆; 缓冲室，其根据流体压力缸的延伸而减小容量; 连通通道，其允许缓冲室和杆内腔彼此连通; 节流通道，其通过对来自缓冲室的工作流体的流动施加阻力而施加缓冲功能; 设置在活塞中的止回阀允许杆内腔和驱动室彼此连通，并且具有检查功能，仅允许工作流体从杆内腔流到驱动室 ; 以及导向通道，其形成在活塞中并且通过将缓冲室中的压力引导到止回阀作为先导压力来禁止检查功能。

    Door actuator comprising means for setting to atmospheric pressure in a rapid manner at the end of opening the door
    6.
    发明授权
    Door actuator comprising means for setting to atmospheric pressure in a rapid manner at the end of opening the door 有权
    门致动器包括用于在打开门的最后快速地设定为大气压力的装置

    公开(公告)号：US09273704B2

    公开(公告)日：2016-03-01

    申请号：US13707124

    申请日：2012-12-06

    申请人： RATIER FIGEAC

    发明人： Hélène Bergonnier ,  Eric Delbos

    IPC分类号： F15B15/22 ,  F15B15/19 ,  F15B11/048

    CPC分类号： B64C1/143 ,  F15B11/046 ,  F15B11/048 ,  F15B15/19 ,  F15B15/22

    摘要： An aircraft door actuator, including: a pneumatic cylinder for the opening of the door including a chamber into which a pressurized gas is injected via a first port, means for supplying the chamber of the cylinder with pressurized gas, via a supply pipe and said first port, means for setting the chamber to atmospheric pressure when the piston is in the position for opening the door, so as to allow said door to be moved into the closing position, including: a pressurized gas exhaust pipe a gate-valve means for guiding the opening of the gate-valve via the pressurized fluid located in the chamber when the door is in the opening position, so as to open the exhaust pipe in order to set said chamber of the cylinder to atmospheric pressure in a rapid manner once the door is open.

    摘要翻译： 一种飞机门致动器，包括：用于打开门的气缸，包括经由第一端口注入加压气体的腔室，用于经由供给管向所述气缸供应加压气体的装置，所述第一 端口，用于当活塞处于打开门的位置时将室设定为大气压力，以允许所述门移动到关闭位置，包括：加压排气管，用于引导的门阀装置 当门处于打开位置时，通过位于腔室中的加压流体打开闸阀，以便打开排气管，以便一旦门将气缸的所述室快速设定为大气压力 开了。

    Hydraulic cylinder
    7.
    发明授权
    Hydraulic cylinder 有权
    液压缸

    公开(公告)号：US09162860B2

    公开(公告)日：2015-10-20

    申请号：US13259916

    申请日：2010-03-10

    申请人： Nobuhiro Nakanishi

    发明人： Nobuhiro Nakanishi

    IPC分类号： F15B13/02 ,  B66F9/22 ,  F15B15/22 ,  F15B15/14

    CPC分类号： B66F9/22 ,  F15B15/1457 ,  F15B15/22 ,  F15B15/223 ,  F15B15/226

    摘要： A hydraulic cylinder includes a piston that defines a driving pressure chamber and a cushion pressure chamber within a cylinder tube, an air chamber defined inside a hollow piston rod, an orifice that leads a working fluid in the cushion pressure chamber into the air chamber when the cushion pressure chamber contracts during an extension operation, a check valve that returns a working fluid in the air chamber to the driving pressure chamber when a differential pressure between the air chamber and the driving pressure chamber rises to or above a predetermined value, and a valve housing that houses the check valve. A throttle gap is defined between an outer peripheral surface of the valve housing and an inner peripheral surface of the piston rod, and a working fluid ejected from the orifice during the extension operation flows into the air chamber through the throttle gap.

    摘要翻译： 液压缸包括活塞，该活塞限定了气缸管内的驱动压力室和缓冲压力室，限定在中空活塞杆内的气室，当缓冲压力室中的工作流体进入空气室时， 缓冲压力室在伸展操作期间收缩;止回阀，当气室和驱动压力室之间的压差升高到或高于预定值时，将空气室中的工作流体返回到驱动压力室;以及阀 容纳止回阀的房屋。 在阀壳体的外周面与活塞杆的内周面之间形成有节流间隙，在伸长动作期间从孔口喷出的工作流体通过节流间隙流入空气室。

    BI-DIRECTIONAL SHOCK ABSORBING DEVICE
    8.
    发明申请
    BI-DIRECTIONAL SHOCK ABSORBING DEVICE 有权
    双向减震装置

    公开(公告)号：US20150152934A1

    公开(公告)日：2015-06-04

    申请号：US14409680

    申请日：2013-05-29

    申请人： SMC CORPORATION

    发明人： Eiko Miyasato ,  Youji Takakuwa ,  Kodai Yoshinaga ,  Tsuyoshi Mita ,  Kouichi Matsuzaki ,  Toshio Minakuchi ,  Kazuhiro Iida ,  Junya Kaneko

    IPC分类号： F16F9/19 ,  F15B15/14

    CPC分类号： F16F9/19 ,  F15B15/1423 ,  F15B15/22 ,  F15B15/228 ,  F16F9/3214 ,  F16F9/483

    摘要： A bidirectional shock absorber includes a cylinder housing including a liquid chamber, a shock-absorbing mechanism located inside the liquid chamber and supported by a rod sticking out of the cylinder housing. The shock-absorbing mechanism includes a pair of pistons located in the liquid chamber and attached to the rod on the respective sides of a liquid storage chamber constituting an accumulator, resistance paths formed between an outer circumferential surface of the pistons and an inner circumferential surface of a piston chamber, to apply flow resistance to the liquid, and unidirectional flow paths formed along the respective pistons and configured to block the liquid flow toward the liquid storage chamber when the corresponding piston is pressed toward the piston chamber, but to permit the liquid to flow in the opposite direction.

    摘要翻译： 双向减震器包括：气缸壳体，其包括液体室，位于液体室内的减震机构，并由从气缸壳体伸出的杆支撑。 减震机构包括一对活塞，位于液体室中并附着在构成蓄能器的储液室的各侧的杆上，形成在活塞的外周面与内周面之间的阻力路径 活塞室，用于对液体施加流动阻力，以及沿着各个活塞形成的单向流动路径，并且构造成当相应的活塞被压向活塞室时阻止液体流向液体储存室，但是允许液体 流向相反方向。

    Hydraulic feed-rate control apparatus
    9.
    发明授权
    Hydraulic feed-rate control apparatus 有权
    液压进给速度控制装置

    公开(公告)号：US08997625B2

    公开(公告)日：2015-04-07

    申请号：US13534868

    申请日：2012-06-27

    申请人： Takahiro Murai ,  Hideki Uchiuzo ,  Minoru Ihara

    发明人： Takahiro Murai ,  Hideki Uchiuzo ,  Minoru Ihara

    IPC分类号： F15B11/046 ,  F15B15/22

    CPC分类号： F15B11/046 ,  F15B15/22 ,  Y10T137/794 ,  Y10T137/87153 ,  Y10T408/6757

    摘要： A hydraulic feed-rate control apparatus pushes out a fluid by a main piston to a reservoir chamber via feed-rate adjustment mechanisms and flow passages and adjusts a feed rate of a reciprocating body; the adjustment mechanisms comprises first and second throttle valves arranged at front ends of a cylinder and adjusting flow rates of the fluid flowing into the flow passages; the main piston comprises an auxiliary piston integrally moving, and opening and closing the second throttle valve; and the auxiliary piston comprises an outer peripheral portion fitted in the second throttle valve and closed, a concave portion formed between a front portion and rear portion of the outer peripheral portion, a circulation hole formed in an inner peripheral portion of the auxiliary piston, rear-portion escape holes communicating the rear portion and the circulation hole, and concave-portion escape holes communicating the concave portion with the circulation hole.

    摘要翻译： 液压进给速度控制装置通过进给速度调节机构和流动通道将主活塞的流体推出到储存室，并调节往复运动体的进给速度; 所述调节机构包括布置在气缸前端的第一和第二节流阀，并且调节流入所述流动通道的流体的流量; 主活塞包括一体地移动的辅助活塞，并且打开和关闭第二节流阀; 所述辅助活塞包括装配在所述第二节流阀中的外周部分并关闭，形成在所述外周部的前部和后部之间的凹部，形成在所述辅助活塞的内周部分中的循环孔， 连通后部和循环孔的分支排出孔以及将凹部与循环孔连通的凹部排出孔。