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36 条记录 (耗时 0.021 秒)

    Hydraulic control system for hydraulic working machine
    12.
    发明授权
    Hydraulic control system for hydraulic working machine 失效
    液压作业机液压控制系统

    公开(公告)号：US5813311A

    公开(公告)日：1998-09-29

    申请号：US771158

    申请日：1996-12-20

    申请人： Tsukasa Toyooka ,  Toichi Hirata ,  Genroku Sugiyama ,  Shigehiro Yoshinaga ,  Kouji Ishikawa ,  Youichi Kowatari ,  Tsuyoshi Nakamura

    发明人： Tsukasa Toyooka ,  Toichi Hirata ,  Genroku Sugiyama ,  Shigehiro Yoshinaga ,  Kouji Ishikawa ,  Youichi Kowatari ,  Tsuyoshi Nakamura

    IPC分类号： E02F9/20 ,  E02F9/22 ,  F15B11/16

    CPC分类号： E02F9/2285 ,  E02F9/2228 ,  E02F9/2282

    摘要： A controller 520 has a data portion 520c in which the relationship between a pump delivery pressure and a target opening area of a variable throttle 300a of a control valve 300 is set such that the target opening area is large when the pump delivery pressure is low, and small when the pump delivery pressure is high. An input portion 520a takes in a detection signal from a pump pressure sensor 700, a processing portion 520b reads the data from the data portion 520c and calculates a signal output to a solenoid proportional valve 590, and an output portion 520d converts the calculated signal into a command signal for the solenoid proportional valve 590 and outputs the command signal. Upon receiving the command signal from the controller 520, the solenoid proportional valve 590 produces a command pilot pressure for the control valve 300 corresponding to the input signal and controls the opening area of the variable throttle 300a.

    摘要翻译： 控制器520具有数据部分520c，其中泵输送压力和控制阀300的可变节流阀300a的目标开口面积之间的关系被设定为当泵输送压力低时目标开口面积大， 并且当泵输送压力高时小。 输入部分520a从泵压力传感器700接收检测信号，处理部分520b从数据部分520c读取数据，并计算输出到电磁比例阀590的信号，输出部分520d将计算出的信号转换成 用于电磁比例阀590的命令信号并输出​​命令信号。 电磁比例阀590从控制器520接收到指令信号时，根据输入信号产生控制阀300的指令先导压力，并控制可变节流阀300a的开度面积。

    Output correcting method in control system, control system, and hydraulic pump control system
    13.
    发明授权
    Output correcting method in control system, control system, and hydraulic pump control system 失效
    控制系统，控制系统，液压泵控制系统的输出校正方法

    公开(公告)号：US6101456A

    公开(公告)日：2000-08-08

    申请号：US817489

    申请日：1997-04-15

    申请人： Youichi Kowatari ,  Toichi Hirata ,  Hidefumi Takegahara ,  Tsukasa Toyooka ,  Kouji Ishikawa ,  Genroku Sugiyama ,  Shigehiro Yoshinaga

    发明人： Youichi Kowatari ,  Toichi Hirata ,  Hidefumi Takegahara ,  Tsukasa Toyooka ,  Kouji Ishikawa ,  Genroku Sugiyama ,  Shigehiro Yoshinaga

    IPC分类号： E02F9/20 ,  E02F9/22 ,  F04B49/00 ,  F04B49/06 ,  F15B11/00 ,  F15B11/02 ,  G05B11/36 ,  G05B13/02 ,  G05B13/00

    CPC分类号： G05B13/0265 ,  E02F9/2025 ,  E02F9/2235 ,  F04B49/065

    摘要： A control system wherein a reverse characteristic having a reverse input/output relationship to a target input/output characteristic of a control object, is preset, and a target value for an output of the control object is calculated. A command signal corresponding to the target value then is determined based on the preset reverse characteristic, and the command signal is output to the control object. The control system includes first means for calculating a command signal corresponding to a given target value for the output of the control object based on the preset reverse characteristic, outputting the command signal to the control object, measuring an output of the control object and estimating a deviation between an actual input/output characteristic of the control object and the target input/output characteristic therefor, and storing data on the deviation between the input/output characteristics as learning correction data. The control system further includes second means for reading out the stored learning correction data and correcting the command signal using the learning correction data.

    摘要翻译： PCT No.PCT / JP96 / 02517 Sec。 371日期1997年04月15日 102（e）日期1997年04月15日PCT 1996年9月5日提交的一种控制系统，其中具有与控制对象的目标输入/输出特性相反的输入/输出关系的反向特性被预先设定， 计算控制对象的输出。 基于预设的反向特性来确定与目标值相对应的命令信号，并且将命令信号输出到控制对象。 控制系统包括：第一装置，用于基于预设的反向特性来计算对应于控制对象的输出的给定目标值的命令信号，向控制对象输出命令信号，测量控制对象的输出并估计一个 控制对象的实际输入/输出特性与其目标输入/输出特性之间的偏差，并且存储关于输入/输出特性之间的偏差的数据作为学习校正数据。 控制系统还包括用于读出所存储的学习校正数据并使用学习校正数据校正命令信号的第二装置。

    Hydraulic by-pass circuit for a hydraulic shovel
    14.
    发明授权
    Hydraulic by-pass circuit for a hydraulic shovel 失效
    液压铲的液压旁通回路

    公开(公告)号：US5890303A

    公开(公告)日：1999-04-06

    申请号：US774703

    申请日：1996-12-26

    申请人： Kouji Ishikawa ,  Toichi Hirata ,  Genroku Sugiyama ,  Tsukasa Toyooka ,  Youichi Kowatari

    发明人： Kouji Ishikawa ,  Toichi Hirata ,  Genroku Sugiyama ,  Tsukasa Toyooka ,  Youichi Kowatari

    IPC分类号： E02F9/22 ,  F15B11/16 ,  E02F5/02

    CPC分类号： E02F9/2282 ,  E02F9/2242 ,  E02F9/2292

    摘要： A pilot pressure sensor detects a pilot pressure from an arm operating unit and outputs a pilot pressure signal. A drive signal corresponding to the pilot pressure signal is then outputted from a controller to a solenoid-operated proportional valve. Through the solenoid-operated proportional valve, a pilot pressure is fed to an auxiliary selector valve so that an opening of said auxiliary selector valve becomes greater. Of pressure oil delivered from a first hydraulic pump, a flow rate of the pressure oil to be branched to a side of a by-pass circuit is hence increased. The pressure oil fed through the by-pass circuit passes through a merging directional control valve and is caused to merge with pressure oil fed from a second hydraulic pump. The thus-merged pressure oil is then fed to a hydraulic arm cylinder.

    摘要翻译： 先导压力传感器检测来自臂操作单元的先导压力并输出先导压力信号。 然后将与先导压力信号对应的驱动信号从控制器输出到电磁比例阀。 通过电磁比例阀，先导压力被供给辅助选择阀，使得所述辅助选择阀的开度变大。 从第一液压泵输送的压力油中，因此分支到旁通回路侧的压力油的流量增加。 通过旁通回路供给的压力油通过合流方向控制阀，并与从第二液压泵供给的压力油合并。 然后将这样合并的压力油送入液压臂缸。

    Hydraulic drive system for construction machines
    15.
    发明授权
    Hydraulic drive system for construction machines 失效
    施工机械液压驱动系统

    公开(公告)号：US5848531A

    公开(公告)日：1998-12-15

    申请号：US774725

    申请日：1997-01-03

    申请人： Tsuyoshi Nakamura ,  Toichi Hirata ,  Genroku Sugiyama ,  Tsukasa Toyooka ,  Youichi Kowatari ,  Kouji Ishikawa

    发明人： Tsuyoshi Nakamura ,  Toichi Hirata ,  Genroku Sugiyama ,  Tsukasa Toyooka ,  Youichi Kowatari ,  Kouji Ishikawa

    IPC分类号： E02F9/22 ,  F15B11/028 ,  F16D31/02

    CPC分类号： E02F9/2282 ,  E02F9/2228 ,  E02F9/2235 ,  E02F9/2296

    摘要： A hydraulic system for a construction machine includes a hydraulic pump driven by a prime mover, actuators driven by a hydraulic fluid delivered from the hydraulic pump, flow control valves for controlling flow of the hydraulic fluid to the actuators and operation means for operating the flow control valves. A relief value sets a relief pressure for limiting the maximum delivery pressure of the hydraulic pump and relief pressure change means increase or decrease the relief pressure set by the relief valve. The relief pressure change means automatically increase or decrease the relief pressure in accordance with the input amount of the operation means.

    摘要翻译： 用于建筑机械的液压系统包括由原动机驱动的液压泵，由从液压泵输送的液压流体驱动的致动器，用于控制液压流体到致动器的流量控制阀和用于操作流量控制的操作装置 阀门 释放值设定用于限制液压泵的最大输送压力的溢流压力，溢流压力改变装置增加或减少由安全阀设定的溢流压力。 溢流压力改变装置根据操作装置的输入量自动增加或减小溢流压力。

    Pipe breakage control valve device
    17.
    发明授权
    Pipe breakage control valve device 有权
    管道破损控制阀装置

    公开(公告)号：US06691510B2

    公开(公告)日：2004-02-17

    申请号：US10018530

    申请日：2001-12-20

    申请人： Masao Kariya ,  Genroku Sugiyama ,  Tsukasa Toyooka

    发明人： Masao Kariya ,  Genroku Sugiyama ,  Tsukasa Toyooka

    IPC分类号： F15B11042

    CPC分类号： F15B11/003 ,  F15B13/01 ,  F15B2211/20538 ,  F15B2211/30515 ,  F15B2211/30525 ,  F15B2211/3116 ,  F15B2211/31558 ,  F15B2211/31576 ,  F15B2211/329 ,  F15B2211/40515 ,  F15B2211/41527 ,  F15B2211/428 ,  F15B2211/46 ,  F15B2211/50518 ,  F15B2211/55 ,  F15B2211/6355 ,  F15B2211/8636

    摘要： A hydraulic drive system includes a hose rupture control valve unit 200 having a poppet valve member 5 serving as a main valve for opening and closing communication between a cylinder connection chamber 8 and a hose connection chamber 9, a spool valve member 6 disposed in pilot passages 15a, 15b connecting a back pressure chamber 10 and the hose connection chamber 9 of the poppet valve member 5. The spool valve member is operated by a pilot pressure supplied as an external signal and operates the poppet valve member 5, and a small relief valve 7 having the function of an overload relief valve. A check valve 39 is disposed in the pilot passage 15b for cutting off a flow of the hydraulic fluid from the hose connection chamber 9 to the back pressure chamber 10. A hose rupture control valve unit 200 comprises a poppet valve member 5 serving as a main valve for opening and closing communication between a cylinder connection chamber 8 and a hose connection chamber 9, a spool valve member 6 disposed in pilot passages 15a, 15b connecting a back pressure chamber 10 and the hose connection chamber 9 of the poppet valve member 5, the spool valve member being operated by a pilot pressure supplied as an external signal and operating the poppet valve member 5, and a small relief valve 7 having the function of an overload relief valve. The valve unit further comprises a check valve 39 disposed in the pilot passage 15b for cutting off a flow of the hydraulic fluid from the hose connection chamber 9 to the back pressure chamber 10.

    摘要翻译： 液压驱动系统包括软管破裂控制阀单元200，其具有作为用于打开和关闭气缸连接室8和软管连接室9之间的连通的主阀的提升阀构件5，设置在引导通道中的滑阀构件6 15a，15b连接提升阀构件5的背压室10和软管连接室9.滑阀构件通过作为外部信号提供的先导压力操作，并且操作提升阀构件5和小的安全阀 具有过载溢流阀的功能。 止回阀39设置在先导通道15b中，用于切断液压流体从软管连接室9到背压室10的流动。软管破裂控制阀单元200包括作为主体的提升阀构件5 用于打开和关闭气缸连接室8和软管连接室9之间的连通的阀，设置在连接背压室10和提升阀构件5的软管连接室9的先导通道15a，15b中的滑阀构件6， 滑阀构件由作为外部信号提供的先导压力操作并操作提升阀构件5，以及具有过载溢流阀功能的小型安全阀7。 阀单元还包括设置在先导通道15b中的止回阀39，用于切断液压流体从软管连接室9到背压室10的流动。