RAILWAY VEHICLE VIBRATION DAMPING DEVICE
    1.
    发明申请

    公开(公告)号:US20190111950A1

    公开(公告)日:2019-04-18

    申请号:US16094005

    申请日:2017-04-19

    Abstract: A railway vehicle vibration damping device includes: an actuator including a cylinder body configured to expand and contract when supplied with hydraulic fluid, a pump configured to supply the hydraulic fluid to the cylinder body, and a motor configured to drive the pump, and installed on a railway vehicle; and a control unit configured to control the motor. The control unit stops the motor when a current value to be provided to the motor becomes equal to or larger than a current threshold for outputting a restriction torque set to a value exceeding a rated torque of the motor.

    HYDRAULIC DEVICE
    2.
    发明申请
    HYDRAULIC DEVICE 审中-公开

    公开(公告)号:US20190085872A1

    公开(公告)日:2019-03-21

    申请号:US15742984

    申请日:2016-10-25

    Abstract: A hydraulic device of the present invention includes: a cylinder body (S) including a cylinder (1) and a rod (2) that moves retractably inside the cylinder (1); and a pump unit (30) that is formed with an oil passage (31) and discharges, at an intermediate position in the oil passage (31), liquid into the cylinder (1) through driving of a motor (M). The cylinder body (S) is connected to the pump unit (30) via an extension (40) having an oil passage (41) that provides communication between the oil passage (31) of the pump unit (30) and an interior of the cylinder (1).

    RAILWAY VEHICLE VIBRATION DAMPING DEVICE
    3.
    发明申请

    公开(公告)号:US20190168785A1

    公开(公告)日:2019-06-06

    申请号:US16095745

    申请日:2017-04-19

    Inventor: Takayuki OGAWA

    Abstract: A railway vehicle vibration damping device includes an actuator interposed between a vehicle body and a truck and capable of exerting a control force; and a controller configured to obtain a target control force for reducing a vibration of the vehicle body based on a lateral acceleration of the vehicle body, and the controller includes a bandpass filter configured to extract a low frequency control force, which is a frequency component lower than a resonant frequency of the vehicle body, and a correcting part configured to correct a target control force based on the low frequency control force.

    VALVE
    4.
    发明申请
    VALVE 审中-公开

    公开(公告)号:US20180238461A1

    公开(公告)日:2018-08-23

    申请号:US15751715

    申请日:2016-10-25

    CPC classification number: F16K17/06 F16K27/00

    Abstract: A valve as a solution to the problem in the present invention includes a housing having a hollow portion, a first sleeve and a second sleeve inserted in series in the hollow portion, a first spool housed in the first sleeve, a second spool housed in the second sleeve, and a stopper mounted in an opening end of the housing.

    RAILROAD VIBRATION CONTROL DEVICE
    5.
    发明申请

    公开(公告)号:US20170297591A1

    公开(公告)日:2017-10-19

    申请号:US15511411

    申请日:2015-08-26

    Inventor: Takayuki OGAWA

    Abstract: The railroad vibration control device includes a first cylinder device and a second cylinder device, the first cylinder device includes a first cylinder body, a pump configured to supply hydraulic pressure to the first cylinder body, and a hydraulic pressure circuit configured to adjust a thrust force generation direction and a thrust force of the first cylinder body, the second cylinder device includes a second cylinder body and a damper circuit configured to cause the second cylinder body to function as a damper, and the hydraulic pressure circuit and the damper circuit are the same circuit.

    LIQUID PRESSURE DEVICE
    7.
    发明申请

    公开(公告)号:US20170276205A1

    公开(公告)日:2017-09-28

    申请号:US15514327

    申请日:2015-10-22

    Abstract: Provided is a liquid pressure device having no dead band in generation of force and causing no contamination, the liquid pressure device including a bottom cap and a head cap welded to an outer tube, and a rod guide fastened to the head cap, and one end of a pipe is fit in the bottom cap and the other end of the pipe is fit in the rod guide, and the bottom cap and the rod guide sandwich a cylinder. Accordingly, the liquid pressure device of the present invention can add shaft force to the cylinder while supporting the pipe, an inside of which is isolated from a tank, by the bottom cap and the rod guide, and does not need to braze the pipe to the bottom cap. Therefore, the liquid pressure device of the present invention has no dead band in generation of force and causes no contamination.

    CYLINDER DEVICE
    8.
    发明申请
    CYLINDER DEVICE 审中-公开
    气缸装置

    公开(公告)号:US20170037921A1

    公开(公告)日:2017-02-09

    申请号:US15305532

    申请日:2015-03-20

    Inventor: Takayuki OGAWA

    Abstract: An object is to provide a cylinder device which can be used over a long period of time. The cylinder device includes a damper, a pump, a motor and an external tank. The damper has a cylinder, a first bracket, a piston, a piston rod and a second bracket. The piston is slidably inserted into an interior of the cylinder. The piston rod is inserted into the cylinder and connects the piston to an end located in the cylinder. The pump is disposed at one of right and left sides with respect to a central axis of the cylinder. The motor is disposed at the one side which is the same side as the pump with respect to the central axis of the cylinder. The external tank is disposed at the other side with respect to the central axis of the cylinder.

    Abstract translation: 目的在于提供一种能够长时间使用的气缸装置。 气缸装置包括阻尼器,泵,马达和外部罐。 阻尼器具有气缸,第一支架,活塞,活塞杆和第二支架。 活塞可滑动地插入气缸的内部。 将活塞杆插入缸体中并将活塞连接到位于气缸中的端部。 泵相对于气缸的中心轴线设置在左右两侧的一侧。 马达设置在与泵相对于缸的中心轴线相同侧的一侧。 外箱相对于气缸的中心轴设置在另一侧。

    CYLINDER DEVICE
    9.
    发明申请
    CYLINDER DEVICE 有权
    气缸装置

    公开(公告)号:US20170023086A1

    公开(公告)日:2017-01-26

    申请号:US15124866

    申请日:2015-10-08

    Inventor: Takayuki OGAWA

    Abstract: A cylinder device includes a recess provided on either one of the piston and the cylinder, the recess facing the other one of the piston and the cylinder; an extension-side discharge passage configured to permit only a flow of liquid from the extension-side chamber toward the recess; a compression-side discharge passage configured to permit only a flow of liquid from the compression-side chamber toward the recess; a tank-side discharge passage configured to allow the extension-side discharge passage and the compression-side discharge passage to communicate with the tank through the recess; an extension-side damping force generation passage configured to apply a resistance to a flow of liquid passing therethrough so as to exert a damping force during extension; and a compression-side damping force generation passage configured to apply a resistance to a flow of liquid passing therethrough so as to exert a damping force during contraction.

    Abstract translation: 气缸装置包括设置在活塞和气缸中的任一个上的凹部,凹部面向活塞和气缸中的另一个; 延伸侧排出通道,其构造成仅允许来自所述延伸侧室的液体流向所述凹部; 压缩侧排出通道,其构造成仅允许来自压缩侧室的液体流向凹部; 罐侧排出通道,其构造成允许所述延伸侧排出通道和所述压缩侧排出通道通过所述凹部与所述罐连通; 延伸侧阻尼力产生通道,其构造成对通过其中的液体流施加阻力,以在伸展期间施加阻尼力; 以及压缩侧阻尼力产生通道,其构造成对通过其中的液体流施加阻力,以在收缩期间施加阻尼力。

    RELIEF VALVE
    10.
    发明申请
    RELIEF VALVE 审中-公开
    救护阀

    公开(公告)号:US20160341324A1

    公开(公告)日:2016-11-24

    申请号:US15113967

    申请日:2015-02-13

    Inventor: Takayuki OGAWA

    Abstract: A relief valve includes: a case; a valve seat provided in a channel; a poppet valve that opens and closes the channel by being seated on and separated from the valve seat; a spring that biases, at a first end, the poppet valve in a direction in which the poppet valve is seated on the valve seat; an adjusting screw that is threaded into the case and changes, in accordance with a threaded depth, a distance between the valve seat and a bearing surface, which is in contact with a second end of the spring; and a positioning plate that has an engaging hole with which a projected portion of the adjusting screw is engaged such that relative rotation is not allowed and that restricts rotation of the adjusting screw by being fixed to an end surface of the case and by being brought into contact with the adjusting screw only at a side surface of the projected portion.

    Abstract translation: 安全阀包括:壳体; 设置在通道中的阀座; 提升阀,其通过坐在阀座上并与阀座分离而打开和关闭通道; 弹簧,其在第一端处沿着提升阀安置在阀座上的方向偏压提升阀; 螺纹连接到壳体中并根据螺纹深度改变阀座与与弹簧的第二端接触的支承表面之间的距离; 以及具有接合孔的定位板,所述调节螺钉的突出部分与所述接合孔接合,使得不允许相对旋转,并且通过固定到所述壳体的端面并限制所述调节螺钉的旋转来限制所述调节螺钉的旋转 仅在突出部分的侧表面处与调节螺钉接触。

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