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    • 2. 发明公开
    • Fluid valves
    • Flüssigkeitsventil。
    • EP0198635A2
    • 1986-10-22
    • EP86302507.8
    • 1986-04-04
    • FAIREY HYDRAULICS LIMITED
    • Smith, John DenisDavis, Peter James
    • F16K31/06F15B13/043
    • F15B13/0442F15B13/0402F15B13/043F15B2013/0412F15B2013/0448H01F7/14
    • An electrohydraulic servo valve (10) comprises a pair of electric motors (11) mounted on the body - (13) of a linear hydraulic spool valve (12) and driving a common motor shaft (77) whose rotation is transmitted directly to the valve spool (20) by a pivoted lever (90), one end of which is engaged in a cross-bore (89) in the motor shaft (77) and the other end of which is engaged in a cross-bore (30) in the valve spool (20). The lever (90) is pivotally suspended by two integral rectangular-section thin steel strips projecting at right angle from opposite sides of the lever and secured by screwed-down integral mounting blocks (107) at their outer ends. The strips are arranged with their widths transverse to the length of the lever (90), and twist resiliently about their lengths as the lever pivots about a pivotal axis (92) coincident with the lengths of the strips (105,106) providing a frictionless pivotal suspension for the lever with a resilient centering action.
    • 电动液压伺服阀(10)包括安装在线性液压滑阀(12)的主体(13)上的一对电动机(11),并驱动公共电动机轴(77),其旋转直接传递到阀芯 (20)通过枢转杆(90),其一端接合在电动机轴(77)中的交叉孔(89)中,并且其另一端接合在所述交叉孔(30)中 阀芯(20)。 杆(90)由两个整体的矩形截面细钢条枢转地悬挂,该条带从杠杆的相对侧呈直角突出,并在其外端由螺纹固定的一体安装块(107)固定。 所述条带布置成横向于所述杆(90)的长度,并且当所述杆围绕与所述条(105,106)的长度重合的枢转轴线(92)枢转时弹性地绕其长度扭转,从而提供无摩擦的枢转悬架 用于具有弹性对中动作的杠杆。
    • 3. 发明公开
    • Solenoid valve control circuit
    • Steuerschaltungfürein Magnetventil
    • EP1344967A2
    • 2003-09-17
    • EP03010837.7
    • 2000-07-03
    • Mac Valves Inc.
    • The designation of the inventor has not yet been filed
    • F16K31/08
    • F16K31/0627F15B13/0405F15B13/044F15B2013/0448F16K31/0634F16K31/0675F16K31/082Y10T137/86622
    • A self-latching solenoid valve assembly including a valve body having a pressurized air supply inlet port for communicating with a source of pressurized air and at least one cylinder port. A valve member is supported in the valve body so as to be movable between predetermined positions to selectively direct pressurized air from the inlet port to at least one cylinder port. A biasing member is employed to move the valve member in one direction and a solenoid assembly (14) is used to move the valve member in an opposite direction. The solenoid assembly (14) includes a housing with a solenoid coil (56) supported therein and a fixed ferromagnetic pole piece having a passage extending therethrough with a pushpin (84) movably supported in the passage. A ferromagnetic latch is also supported by the housing and spaced from the pole piece. A permanent magnet is disposed between the latch and the pole piece. The magnet is movable toward the pole piece under the influence of an electromagnetic flux generated by a pulse of current generated through the coil (56) in one direction thereby driving the permanent magnet against the pushpin (84) to move the valve member to one predetermined position. In addition, the permanent magnet is also movable away from the pole piece and toward the latch under the influence of an electromagnetic flux generated by a pulse of current flowing through the coil (56) in an opposite direction. When this occurs, the biasing member moves the valve member to another predetermined position. A control circuit (70) for changing the direction of the current through the coil (56) is also disclosed.
    • 一种自锁电磁阀组件,包括具有用于与加压空气源连通的加压空气供给入口和至少一个气缸端口的阀体。 阀构件被支撑在阀体中,以便能够在预定位置之间移动,以将加压空气从入口选择性地引导到至少一个气缸端口。 使用偏置构件沿一个方向移动阀构件,并且螺线管组件(14)用于沿相反方向移动阀构件。 螺线管组件(14)包括具有支撑在其中的螺线管线圈(56)的壳体和固定的铁磁极片,其具有通过其延伸穿过的通道,其中可以可移动地支撑在通道中的图钉(84)。 铁磁闩锁也由壳体支撑并与极片间隔开。 永磁体设置在闩锁和极片之间。 磁体可以在由一个方向上由线圈(56)产生的电流脉冲产生的电磁通量的影响下移动,从而将永磁体驱动到图钉(84)上,以将阀构件移动到一个预定的 位置。 此外,永磁体也可以在由相反方向流过线圈(56)的电流脉冲产生的电磁通量的影响下离开极靴并且朝向闩锁移动。 当这种情况发生时,偏置构件将阀构件移动到另一预定位置。 还公开了一种用于改变通过线圈(56)的电流方向的控制电路(70)。
    • 9. 发明公开
    • Self-latching solenoid valve assembly and control circuit
    • 一种自锁电磁阀和控制电路
    • EP1065418A2
    • 2001-01-03
    • EP00305601.7
    • 2000-07-03
    • MAC Valves Inc.
    • Janssen, Eric P.Jones, Thomas R.
    • F16K31/08
    • F16K31/0627F15B13/0405F15B13/044F15B2013/0448F16K31/0634F16K31/0675F16K31/082Y10T137/86622
    • A self-latching solenoid valve assembly (10) including a valve body (12) having a pressurized air supply inlet port (16) for communicating with a source of pressurized air and at least one cylinder port (18,20). A valve member (22) is supported in the valve body (12) so as to be movable between predetermined positions to selectively direct pressurized air from the inlet port (16) to at least one cylinder port (18,20). A biasing member (46) is employed to move the valve member (22) in one direction and a solenoid assembly (14) is used to move the valve member (22) in an opposite direction. The solenoid assembly (14) includes a housing (48) with a solenoid coil (56) supported therein and a fixed ferromagnetic pole piece (74) having a passage (82) extending therethrough with a pushpin (84) movably supported in the passage (82). A ferromagnetic latch (88) is also supported by the housing and spaced from the pole piece. A permanent magnet (90) is disposed between the latch (88) and the pole piece (74). The magnet (90) is movable toward the pole piece (74) under the influence of an electromagnetic flux generated by a pulse of current generated through the coil (56) in one direction thereby driving the permanent magnet (90) against the pushpin (84) to move the valve member (22) to one predetermined position. In addition, the permanent magnet (90) is also movable away from the pole piece (74) and toward the latch (88) under the influence of an electromagnetic flux generated by a pulse of current flowing through the coil (56) in an opposite direction. When this occurs, the biasing member (46) moves the valve member (22) to another predetermined position. A control circuit for changing the direction of the current through the coil is also disclosed.