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526 条记录 (耗时 0.022 秒)

    Brake system and method
    4.
    发明授权
    Brake system and method 有权
    制动系统及方法

    公开(公告)号：US09227612B2

    公开(公告)日：2016-01-05

    申请号：US13388860

    申请日：2011-10-10

    申请人： Hiroki Oyama ,  Michael Joseph Boland

    发明人： Hiroki Oyama ,  Michael Joseph Boland

    IPC分类号： B60T13/68 ,  B60T8/32 ,  B60T11/21

    CPC分类号： B60T13/686 ,  B60T8/325 ,  B60T11/21 ,  B60T13/12 ,  B64C25/44 ,  B64C25/46 ,  F15B11/003 ,  F15B13/01 ,  F15B2211/30515 ,  F15B2211/3138 ,  F15B2211/329 ,  F15B2211/40515 ,  F15B2211/41527 ,  F15B2211/428 ,  F15B2211/455

    摘要： A hydraulic system for an aircraft includes a brake operation device, a pressure supply, a reservoir, a shut-off valve, and a wheel brake. The shut-off valve is in fluid communication with and is disposed between the pressure supply and the brake valve. The shut-off valve can include a poppet, a first valve seat and a second valve seat. Movement of the poppet is controlled by operation of the brake operation device. The poppet is movable between a first position where the poppet acts against the first valve seat and a second position where the poppet acts against the second valve seat. In the first position, fluid flow is blocked between the pressure supply and the brake valve through the shut-off valve. In the second position, fluid flow is allowed between the pressure supply and the brake valve through the shut-off valve. The wheel brake is in fluid communication with and downstream from the shut-off valve.

    摘要翻译： 用于飞机的液压系统包括制动操作装置，压力源，储存器，截止阀和车轮制动器。 截止阀与压力供应和制动阀流体连通并设置在压力供应和制动阀之间。 截止阀可以包括提升阀，第一阀座和第二阀座。 提升阀的运动由制动操作装置的操作控制。 提升阀可以在提升阀作用在第一阀座上的第一位置和提升阀作用在第二阀座上的第二位置之间移动。 在第一位置，流体通过截止阀在压力供应和制动阀之间被阻塞。 在第二位置，允许通过截止阀在压力供应和制动阀之间流体流动。 车轮制动器与截止阀流体连通和下游。

    ONLINE SENSOR CALIBRATION FOR ELECTROHYDRAULIC VALVES
    6.
    发明申请
    ONLINE SENSOR CALIBRATION FOR ELECTROHYDRAULIC VALVES 有权
    电动阀门在线传感器校准

    公开(公告)号：US20140165692A1

    公开(公告)日：2014-06-19

    申请号：US14105532

    申请日：2013-12-13

    申请人： Eaton Corporation

    发明人： Michael Berne Rannow

    IPC分类号： G01L27/00 ,  G01B7/14

    CPC分类号： G01B7/14 ,  E02F3/34 ,  E02F9/2267 ,  E02F9/264 ,  F15B1/027 ,  F15B1/26 ,  F15B11/16 ,  F15B19/002 ,  F15B2201/51 ,  F15B2211/25 ,  F15B2211/255 ,  F15B2211/455 ,  F15B2211/46 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/634 ,  F15B2211/78 ,  F15B2211/8626 ,  F15B2211/8752 ,  G01L27/002 ,  G01L27/007

    摘要： An online method for reconfiguring pressure and position sensors in a hydraulic system is disclosed. In one step, a sensor drift condition, a recalibration request, or an unisolated fault condition is detected. In another step, a system pressure sensor or another sensor, such as a load-sense pressure sensor, is verified as a trusted master reference sensor. Another step includes measuring and recording a first pressure reading at the master reference sensor and first voltage readings associated with first, second, third, and fourth pressure slave sensors at a first pump pressure set point. Another step includes, repeating the previous step at a second pump pressure set point. A new gain and offset for each of the first, second, third, and fourth pressure sensors can be calculated based on a comparison of the recoded first and second pressure readings and the recorded first and second voltage readings.

    摘要翻译： 公开了一种在液压系统中重新配置压力和位置传感器的在线方法。 在一个步骤中，检测到传感器漂移条件，重新校准请求或非隔离故障条件。 在另一步骤中，将系统压力传感器或诸如负载感测压力传感器的另一传感器验证为可信赖的主参考传感器。 另一步包括测量和记录主参考传感器处的第一压力读数和在第一泵压设定点处与第一，第二，第三和第四压力从属传感器相关联的第一电压读数。 另一个步骤包括在第二泵压力设定点重复上述步骤。 可以基于重新编码的第一和第二压力读数与记录的第一和第二电压读数的比较来计算第一，第二，第三和第四压力传感器中的每一个的新增益和偏移。

    Shut-off valve for hydraulic system
    7.
    发明授权
    Shut-off valve for hydraulic system 有权
    液压系统截止阀

    公开(公告)号：US08696072B2

    公开(公告)日：2014-04-15

    申请号：US12902456

    申请日：2010-10-12

    申请人： Hiroki Oyama ,  Michael Joseph Boland

    发明人： Hiroki Oyama ,  Michael Joseph Boland

    IPC分类号： B60T8/38

    CPC分类号： B64C25/22 ,  B60T13/12 ,  B64C25/44 ,  B64C25/46 ,  F15B11/003 ,  F15B13/01 ,  F15B2211/30515 ,  F15B2211/3138 ,  F15B2211/329 ,  F15B2211/40515 ,  F15B2211/41527 ,  F15B2211/428 ,  F15B2211/455 ,  F16K11/044

    摘要： A hydraulic system for an aircraft includes a master cylinder, a wheel brake, a pressure supply, a reservoir, and a shut-off valve in communication with the master cylinder, the wheel brake, the pressure supply and the reservoir. The shut-off valve can include a seal that is configured to preclude fluid flow between the pressure supply and the reservoir through the valve. The shut-off valve can be operable in a first position which blocks fluid flow between the pressure supply and the wheel brake through the valve and a second position which allows fluid flow between the pressure supply and the wheel brake through the valve. Fluid pressure from the master cylinder can control operation of the valve between the first position and the second position. Failure of the seal can result in fluid flow from the brake pressure supply toward the master cylinder.

    摘要翻译： 用于飞行器的液压系统包括主缸，车轮制动器，压力供应器，储存器和与主缸，车轮制动器，压力供应器和储存器连通的截止阀。 截止阀可以包括密封件，该密封件被构造成阻止通过阀门在压力供应和储存器之间的流体流动。 截止阀可以在第一位置操作，该第一位置阻止通过阀门在压力供应和车轮制动器之间的流体流动，以及第二位置，其允许通过阀门在压力供应和车轮制动器之间流体流动。 来自主缸的流体压力可以控制阀在第一位置和第二位置之间的操作。 密封件的故障可能导致流体从制动器压力供应向主缸流动。

    BOOM-SWIVEL COMPOUND DRIVE HYDRAULIC CONTROL SYSTEM OF CONSTRUCTION MACHINE
    8.
    发明申请
    BOOM-SWIVEL COMPOUND DRIVE HYDRAULIC CONTROL SYSTEM OF CONSTRUCTION MACHINE 审中-公开
    建筑机械吊装复合驱动液压控制系统

    公开(公告)号：US20130291530A1

    公开(公告)日：2013-11-07

    申请号：US13996818

    申请日：2010-12-27

    申请人： Sang-Ho Bang ,  Byung-Uk Roh

    发明人： Sang-Ho Bang ,  Byung-Uk Roh

    IPC分类号： E02F9/22

    CPC分类号： E02F9/2292 ,  E02F9/2037 ,  E02F9/2242 ,  E02F9/2296 ,  F15B11/17 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/30595 ,  F15B2211/40515 ,  F15B2211/41509 ,  F15B2211/428 ,  F15B2211/455 ,  F15B2211/6658 ,  F15B2211/7142

    摘要： Disclosed is a hydraulic control system for matching the drive speed of a boom up and a swing device according to the operation environment when compound-driving for manipulating boom and swing for excavation compensating error operation. The hydraulic control system of the present invention comprises: an operation mode selection switch for enabling the selection of an operation mode according to the operation environment; an electronic proportional pressure control valve for outputting a control signal pressure that is proportional to the manipulation of the operation mode selection switch when manipulating a boom operation lever for driving the boom up; a variable flow control valve that is placed on a flow channel between a first hydraulic pump and a spool for the swing device, and has an open area thereof that is variably matched proportional to the control signal pressure from the electronic proportional pressure control valve; and a controller having various types of operation modes previously set and stored thereon so as to control the flow being supplied to the spool for the swing device and a spool for the boom merge, according to the operation mode selected when manipulating the operation mode selection switch.

    摘要翻译： 公开了一种液压控制系统，用于在用于操纵吊臂和摆动的复合驱动时根据操作环境匹配吊杆上升和摆动装置的驱动速度以进行挖掘补偿误差操作。 本发明的液压控制系统包括：操作模式选择开关，用于根据操作环境选择操作模式; 电子比例压力控制阀，用于当操纵用于驱动吊杆上升的动臂操作杆时，输出与操作模式选择开关的操作成比例的控制信号压力; 可变流量控制阀，其设置在第一液压泵和用于摆动装置的阀芯之间的流路上，并且其开口面积与来自电子比例压力控制阀的控制信号压力成比例地变化匹配; 以及控制器，其具有预先设定并存储在其中的各种类型的操作模式，以根据在操作操作模式选择开关时所选择的操作模式来控制供应到摆动装置的卷轴和用于吊杆合并的卷轴的流动 。

    Directional control valve device and directional control valve device block having directional control valve devices
    9.
    发明授权
    Directional control valve device and directional control valve device block having directional control valve devices 失效
    方向控制阀装置和方向控制阀装置块具有方向控制阀装置

    公开(公告)号：US08393348B2

    公开(公告)日：2013-03-12

    申请号：US12527956

    申请日：2008-02-18

    申请人： Mitsuhisa Tougasaki ,  Katsumi Ueno

    发明人： Mitsuhisa Tougasaki ,  Katsumi Ueno

    IPC分类号： G05D11/00

    CPC分类号： F15B13/0417 ,  F15B13/0405 ,  F15B2211/40515 ,  F15B2211/41509 ,  F15B2211/428 ,  F15B2211/455 ,  Y10T137/2625 ,  Y10T137/7922 ,  Y10T137/86549 ,  Y10T137/86558 ,  Y10T137/87185 ,  Y10T137/87917

    摘要： A control valve has a pressure chamber 24 causing a pressure to act on a valve element 21 of a check valve 20, an oil chamber 39 around the valve 21, a slot 40 formed in the valve element 21 and interconnecting the oil chamber 39 and the pressure chamber 24with each other and, a control valve 25 connected directly to a divergence portion 17 and the oil chamber 39 and capable of permitting or cutting off communication between the divergence portion 17 and the oil chamber 39 and changing an opening degree of the communication, an intra-valve-element passage 42, a slot 41 formed in an outer peripheral wall of the valve element 21 and communicating the passage 42 and the chamber 39 with each other, and a spring-return auxiliary check valve 43 for allowing pressure oil to flow from a supply passage 15 into the intra-valve-element passage 42.

    摘要翻译： 控制阀具有压力室24，其压力作用在止回阀20的阀元件21上，围绕阀21的油室39，形成在阀元件21中的槽40，并将油室39和 压力室24彼此连接，并且控制阀25直接连接到发散部分17和油室39，并且能够允许或切断发散部分17和油室39之间的连通并改变通信的开度， 阀元件通道42，形成在阀元件21的外周壁中并使通道42和腔室39彼此连通的槽41和弹簧复位辅助止回阀43，用于使压力油 从供给通道15流入阀元件通道42。