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    • 5. 发明申请
    • HYDRAULIC CONTROL SYSTEM
    • 液压控制系统
    • US20130145757A1
    • 2013-06-13
    • US13581635
    • 2011-12-09
    • Tomokazu InagawaKenta KimuraTakafumi InagakiYuji HattoriYu Nagasato
    • Tomokazu InagawaKenta KimuraTakafumi InagakiYuji HattoriYu Nagasato
    • F16D31/02
    • F15B11/0423F15B1/033F15B2211/212F15B2211/50536F15B2211/526F15B2211/6306F15B2211/6355F15B2211/67F16H61/0021F16H61/66272F16H2061/0034
    • A hydraulic control system comprises: a regulator valve, which regulates a fluid pressure established by an oil pump to an operating pressure required in a control circuit; a signal pressure establishing valve, which applies a signal pressure to the regulator valve to determine a level of the fluid pressure to be established by the regulator valve; and an accumulator, which accumulates the operating pressure to be applied to the control circuit. The hydraulic control system is characterized by: an accumulator control valve, which is arranged between the accumulator and the control circuit, and which is adapted to connect the accumulator with the control circuit when opened, and to disconnect the accumulator from the control circuit when closed; and a signal pressure feeding passage, which delivers the signal pressure established by the signal pressure establishing valve to a signal pressure port of the accumulator control valve thereby actuating the accumulator control valve in accordance with the signal pressure.
    • 液压控制系统包括:调节阀,其将由油泵建立的流体压力调节到控制电路中所需的操作压力; 信号压力建立阀,其向调节阀施加信号压力以确定由调节阀建立的流体压力的水平; 以及蓄积器,其累积要施加到控制电路的操作压力。 液压控制系统的特征在于:蓄能器控制阀,其设置在蓄能器和控制电路之间,并且当打开时适于将蓄能器与控制电路连接,并且当闭合时将蓄能器与控制电路断开 ; 以及信号压力供给通道,其将由信号压力建立阀建立的信号压力传递到蓄能器控制阀的信号压力端口,从而根据信号压力致动蓄能器控制阀。
    • 7. 发明授权
    • Hydraulic control unit
    • 液压控制单元
    • US09523425B2
    • 2016-12-20
    • US14405199
    • 2012-06-08
    • Takafumi InagakiYuji HattoriTomokazu InagawaKenta KimuraYu Nagasato
    • Takafumi InagakiYuji HattoriTomokazu InagawaKenta KimuraYu Nagasato
    • F16H61/00F16H61/02F16H61/14F16H61/662
    • F16H61/0251B60Y2400/72F16H61/00F16H61/143F16H61/66259F16H61/66272F16H2061/0253F16H2061/145Y10T137/7761
    • A hydraulic control unit is provided. A valve is comprised of a piston having a valve element, a cylinder holding the piston while allowing to reciprocate axially, a positive pressure chamber formed on one side of the piston to which pressure to open the valve is applied, a back pressure chamber formed on the other side of the piston to which the pressure to close the valve is applied, and a connection passage for differentiating pressures in the positive pressure chamber and the back pressure chamber. A pilot valve selectively connects the back pressure chamber with a site where the pressure is lower than that of the back pressure chamber. Hydraulic pressure lower than that applied to positive pressure chamber is applied to a low pressure section. The hydraulic control unit comprises a means to deliver the fluid from the low pressure section to the back pressure chamber if an opening motion of the valve is slower than a predetermined reference value, by opening the pilot valve to connect the back pressure chamber with the low pressure section.
    • 提供液压控制单元。 阀由具有阀元件的活塞,保持活塞同时允许往复运动的气缸构成,形成在活塞的一侧上的正压室,打开阀的压力被施加到压力室上, 施加关闭阀的压力的活塞的另一侧,以及用于分离正压室和背压室中的压力的​​连接通道。 先导阀选择性地将背压室与压力低于背压室的压力的位置连接。 低于施加在正压室上的液压压力应用于低压部分。 液压控制单元包括如果阀的打开运动比预定的参考值慢的话,将流体从低压段输送到背压室,通过打开先导阀将背压室与低压室连接 压力段。