公开(公告)号：US4928730A

公开(公告)日：1990-05-29

申请号：US221416

申请日：1988-07-19

申请人： Tsuyoshi Ando ,  Nakayasu Hirono ,  Hirotoshi Nakao ,  Akio Mito ,  Kazuyuki Kihara ,  Kosuke Hatakenaka ,  Hiroshi Ogawa

发明人： Tsuyoshi Ando ,  Nakayasu Hirono ,  Hirotoshi Nakao ,  Akio Mito ,  Kazuyuki Kihara ,  Kosuke Hatakenaka ,  Hiroshi Ogawa

IPC分类号： G05D16/20

CPC分类号： G05D16/2013 ,  Y10T137/8242 ,  Y10T137/86622 ,  Y10T137/87885

摘要： A proportional electromagnetic valve includes a valve main body having a valve member, a solenoid to drive the valve member, and an amplifier unit to control the solenoid. The solenoid is attached to one or both side portions of the valve main body. The amplifier unit has a size which is almost equal to a size on the unit attaching surface side of the valve main body and solenoids. The casing of the amplifier unit has an enclosing space large enough such that single printed board having all of drive amplifiers attached there to placed in the casing of the amplifier unit.

摘要翻译： 比例电磁阀包括具有阀构件的阀主体，用于驱动阀构件的螺线管和用于控制螺线管的放大器单元。 螺线管安装在阀主体的一侧或两侧。 放大器单元的尺寸几乎等于阀主体和螺线管的单元安装表面侧上的尺寸。 放大器单元的壳体具有足够大的封闭空间，使得具有附接到其上的所有驱动放大器的单个印刷电路板放置在放大器单元的壳体中。

公开(公告)号：US5243296A

公开(公告)日：1993-09-07

申请号：US779541

申请日：1991-10-18

申请人： Tsuyoshi Ando ,  Toshibumi Kakinuma ,  Tomokazu Kominami ,  Kazuyuki Kihara ,  Kousuke Hatakenaka ,  Akio Mito

发明人： Tsuyoshi Ando ,  Toshibumi Kakinuma ,  Tomokazu Kominami ,  Kazuyuki Kihara ,  Kousuke Hatakenaka ,  Akio Mito

IPC分类号： G01R31/06 ,  G01R31/28 ,  G01R31/327

CPC分类号： G01R31/3278 ,  G01R31/06 ,  G01R31/2829

摘要： When a solenoid has been turned on by supplying current to a coil thereof, the solenoid operation is checked by temporarily ceasing the supply of current to the coil to temporarily deenergize the solenoid. The current flowing in the coil is detected while the solenoid is temporarily deenergized, and the characteristics of the thus detected current are used to discriminate the position of a movable iron core of the solenoid. On the other hand, when the solenoid has been turned off by ceasing the supply of current to the coil, the solenoid operation is checked by temporarily supplying current to the coil to thereby temporarily energize the solenoid. The current flowing in the coil while the solenoid is temporarily energized is detected, and the characteristics of the thus detected coil current are used to determine the position of the movable iron core of the solenoid.

摘要翻译： 当通过向其线圈供给电流来接通螺线管时，通过暂时停止对线圈的电流供应来暂时关闭螺线管，来检查螺线管操作。 在螺线管暂时断电时检测到在线圈中流动的电流，并且使用这样检测的电流的特性来区分螺线管的可动铁芯的位置。 另一方面，当通过停止向线圈供给电流来关闭螺线管时，通过向线圈暂时提供电流来检查螺线管操作，从而临时给螺线管通电。 检测到在螺线管暂时通电期间在线圈中流动的电流，并且使用由此检测的线圈电流的特性来确定螺线管的可动铁芯的位置。

公开(公告)号：US4630639A

公开(公告)日：1986-12-23

申请号：US716377

申请日：1985-03-26

申请人： Yoshisuke Akita ,  Ichiro Tenmyo ,  Kiyoshi Hayashi ,  Kazuyuki Kihara ,  Akio Mito

发明人： Yoshisuke Akita ,  Ichiro Tenmyo ,  Kiyoshi Hayashi ,  Kazuyuki Kihara ,  Akio Mito

IPC分类号： F15B11/05 ,  G05D7/00 ,  G05D7/01 ,  G05D16/16 ,  F16K31/36

CPC分类号： G05D7/03 ,  Y10T137/7759 ,  Y10T137/7762

摘要： A differential pressure regulator is arranged in series on the inflow side of a variable throttle for adjustment of a flow rate. An inlet pressure of the variable throttle is led into a primary pilot chamber of the differential pressure regulator. A constant flow control valve is provided in an oil passage connecting an oil passage on the inflow side of the differential pressure regulator with a secondary pilot chamber in order to allow a fluid of a constant flow rate to flow. The inflow side of a sequence valve is connected to the side of the secondary pilot chamber of the differential pressure regulator. The outflow side of the sequence valve is connected to the outlet side of the variable throttle or a tank. The inlet passage of the variable throttle is led into the primary pilot chamber of the sequence valve. An outlet pressure of the variable throttle is led into the secondary pilot chamber of the sequence valve. Further a check valve or a throttle is connected in parallel to the sequence valve. A relief valve is provided in an oil passage starting from the outflow side of the constant flow control valve and reaching the tank in order to prevent an increase in peak pressure when a load stops and thereby to control the pressure.

摘要翻译： 差压调节器串联布置在可变节流阀的流入侧，用于调节流速。 可变节气门的入口压力被引导到差压调节器的主导向室中。 恒流量控制阀设置在油通道中，该油通道将差压调节器的流入侧上的油通道与次级先导室连接，以允许恒定流量的流体流动。 顺序阀的流入侧连接到差压调节器的次级先导室侧。 顺序阀的流出侧连接到可变节流阀或罐的出口侧。 可变节气门的入口通道被引导到顺序阀的主先导室。 可变节流阀的出口压力被引导到顺序阀的次级先导室。 此外，止回阀或节气门与顺序阀并联连接。 溢流阀从恒流量控制阀的流出侧开始设置在油路中并到达油箱，以防止当负载停止时的峰值压力增加，从而控制压力。

公开(公告)号：US5230364A

公开(公告)日：1993-07-27

申请号：US833915

申请日：1992-02-11

申请人： John L. Leng ,  Tsuyoshi Ando ,  Kousuke Hatakenaka ,  Akio Mito

发明人： John L. Leng ,  Tsuyoshi Ando ,  Kousuke Hatakenaka ,  Akio Mito

IPC分类号： F16K17/06

CPC分类号： F16K17/06 ,  Y10T137/785 ,  Y10T137/7851 ,  Y10T137/7905 ,  Y10T137/7929

摘要： A proportional pressure release valve comprising a valve body incorporating a valve seat, a valve closure member mounted in the valve body and cooperable with the valve seat to control flow of fluid through the valve from an inlet pressure port to an outlet tank port, and electromagnetic control means having a push pin operable to move, via resilient means, the valve closure member in dependence upon the magnitude of a control current applied thereto, wherein the valve further comprises damper means provided between the push pin and the valve closure member. The valve may also comprise an anti-cavitation ring having a bore and disposed downstream of the valve seat, the anti-cavitation ring being apertured to provide a fluid connection between the ring core and the tank port. The valve closure member may be guided for movement towards and away from the valve seat by guide means comprising at least one linear bearing.

公开(公告)号：US4779837A

公开(公告)日：1988-10-25

申请号：US13294

申请日：1987-02-10

申请人： Akio Mito ,  Saburo Yajima ,  Kiyoshi Hayashi

发明人： Akio Mito ,  Saburo Yajima ,  Kiyoshi Hayashi

IPC分类号： B27D3/00 ,  F15B9/10 ,  F16K31/122

CPC分类号： B27D3/00 ,  F15B9/10

摘要： A poppet valve in which a poppet is slidable in a valve body and opens or closes a main valve path for pressurized fluid at one end. The pressurized fluid is conveyed to a back pressure chamber at the rear of the poppet either through a reduced flow path or through a valve arrangement between the surfaces of the poppet and a poppet spool slidable within the poppet. Either a control rod or the poppet spool moving relative to the poppet opens a flow path at the side of the back pressure chamber and the flow continues through a hollow in the spool or the control rod to an oil chamber away from the back pressure chamber where it is released to a tank.

摘要翻译： 提升阀，其中提升阀可在阀体中滑动并且在一端打开或关闭用于加压流体的主阀路径。 加压流体通过减小的流动路径或通过提升阀的表面之间的阀装置和在提升阀内滑动的提升阀芯来传送到提升阀的后部的背压室。 控制杆或提升阀芯相对于提升阀移动的任何一个都会在背压室的侧面打开一个流动通道，并且流动继续穿过阀芯或控制杆中的一个中空部分，使其远离背压室， 它被释放到一个坦克。

公开(公告)号：US4428398A

公开(公告)日：1984-01-31

申请号：US355811

申请日：1982-03-08

申请人： Akio Mito ,  Kentaro Tanaka

发明人： Akio Mito ,  Kentaro Tanaka

IPC分类号： F16K17/06 ,  F16K17/10

CPC分类号： F16K17/06 ,  F16K17/10 ,  Y10T137/7906 ,  Y10T137/7929 ,  Y10T74/18576 ,  Y10T74/19623

摘要： A pressure control valve including a valve, a spring for pressing the valve, and a power input means for compressing the spring further comprises a backup force-generating mechanism for producing and directing a backup force counter to the direction in which the reaction force due to the compression of the spring is exerted on the input means, so as to impart the backup force to the input means.

摘要翻译： 一种包括阀，用于按压阀的弹簧和用于压缩弹簧的动力输入装置的压力控制阀还包括备用力产生机构，用于产生和引导支撑力，反作用力与由此产生的反作用力的方向相反 弹簧的压缩被施加在输入装置上，以便将支撑力赋予输入装置。

公开(公告)号：US4388942A

公开(公告)日：1983-06-21

申请号：US225536

申请日：1981-01-16

申请人： Akio Mito

发明人： Akio Mito

IPC分类号： F15C3/14 ,  G05D16/00

CPC分类号： F15C3/14 ,  Y10T137/2278 ,  Y10T137/2409

摘要： A nozzle flapper valve provided with a nozzle, fixed throttle and flapper, characterized in that the flapper is formed to be cylindrical and has the cylindrical peripheral surface positioned on the axis of the nozzle so as to simplify the flapper moving mechanism and to prevent the flapper clearance from being clogged with dust in the fluid.

摘要翻译： 一种具有喷嘴，固定节流阀和挡板的喷嘴挡板阀，其特征在于挡板形成为圆柱形，并且具有位于喷嘴轴线上的圆柱形外周表面，以简化挡板移动机构并防止挡板 清除液体中被灰尘堵塞。