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    • 4. 发明公开
    • Fluid control devices
    • Durchflussregelvorrichtung。
    • EP0260065A2
    • 1988-03-16
    • EP87307773.9
    • 1987-09-03
    • ULTRA HYDRAULICS LIMITED
    • Parker, Dennis WilliamLakin, David Franz
    • F16K31/10F16K31/42F15C3/00
    • F15C3/12F15B13/0436
    • A fluid control device comprising a pivotable member (8) which has a planar major face (22) and is mounted so as to enable pivotal motion about an axis (11) parallel to the major face. The pivotable member including a fluid jet channel (29) which directs a fluid jet towards a fluid receiving channel (37) defined in a receiving member (7).
      The pivotable member is pivotally rotated about the axis by means operable to pivot the pivotable member. This means may be an electromagnet (14) disposed with its poles (20,21) adjacent and parallel to the major face of the pivotable member.
      The motion of the pivotable member alters the relative positions of the fluid jet channel/channels and the fluid receiving channel/channels and thereby the quantity of fluid received by the fluid receiving channel/channels.
    • 一种流体控制装置,包括具有平面主面(22)的可枢转构件(8),并且安装成能够围绕平行于主面的轴线(11)枢转运动。 可枢转构件包括流体喷射通道(29),其将流体射流引向限定在接收构件(7)中的流体接收通道(37)。 可枢转构件通过可操作以枢转可枢转构件的装置围绕轴线枢转地旋转。 该装置可以是电磁体(14),其设置有其极(20,21)邻近且平行于可枢转构件的主表面。 可旋转构件的运动改变流体喷射通道/通道和流体接收通道/通道的相对位置,从而改变由流体接收通道/通道接收的流体的量。
    • 5. 发明公开
    • TWO-STAGE SERVO VALVE
    • EP4390149A1
    • 2024-06-26
    • EP22461651.6
    • 2022-12-23
    • Goodrich Actuation Systems Limited
    • JASKIEWICZ, ZbigniewMASTALERZ, Kamil
    • F15B13/043F15B11/024F16K31/00F16K31/06F15B15/17
    • F15B13/0436F15B13/0438F15B11/024F15B15/17F15B2211/705320130101F15B2211/705220130101F16K31/0682F16K31/426F16K31/0627
    • A two-stage servo valve comprising a first, drive stage (11) and a second fluid transfer stage, the fluid transfer stage comprising a housing (140) having a plurality of ports (70, 80, 90) and a spool (50) axially moveable within an axial cavity (142) defined within the housing to control flow of fluid between the plurality of ports according to the axial position of the spool, wherein the drive stage is configured to cause axial movement of the spool; wherein the housing comprises three ports, a first port being a supply port fluidly connected to a second port, being a control port, via a supply channel (sc) and a first control channel (cc1) via the spool cavity, and a third port being a return port fluidly connected to the control port via a return channel (rc) and a second control channel (cc2) via the spool cavity, and wherein the spool comprises a middle portion (53) and first and second end portions (51a, 51b), a first opening (52) defined between a first edge (K1) of the middle portion and the first end portion and a second opening (54) defined between a second edge (L1) of the middle portion and the second end portion, the first and second openings (52, 54) being sized such that in a neutral position, the first opening (52) does not overlap both the supply channel and the first control channel and the first edge K1 is positioned to prevent fluid flow between the supply channel and the first control channel and the second opening (54) does not overlap both the return channel and the second control channel and the second edge L1 is positioned to prevent fluid flow between the second control channel and the return channel; in a first axial position, the first edge K1 is positioned such that the first opening (52) overlaps at least a portion of both the supply channel and the first control channel to allow fluid flow between the supply channel and the first control channel, and the second opening (54) does not overlap both the return channel and the second control channel and the second edge L1 is positioned to prevent fluid flow between the second control channel and the return channel; and in a second axial position, the second edge L1 is positioned such that the second opening (54) overlaps at least a portion of both the return channel and the second control channel to allow fluid flow between the return channel and the second control channel, and the first opening (52) does not overlap both the supply channel and the first control channel and the first edge K1 is positioned to prevent fluid flow between the supply channel and the first control channel.
    • 6. 发明公开
    • SERVO-VALVE AND FLUIDIC DEVICE
    • 伺服阀和流体设备
    • EP3263914A1
    • 2018-01-03
    • EP17177984.6
    • 2017-06-27
    • Nabtesco Corporation
    • OHSHIO, KeitarohSHIBATA, YuASADA, Satoshi
    • F15B13/043
    • F16K11/065F15B11/08F15B13/0436F16K31/04
    • The disclosure discloses a servo-valve (100) that controls a fluid discharged from a discharge port (221) of a nozzle (200) by displacing the nozzle (200) and drives an actuator. The servo-valve (100) includes a receiver (300) provided with a first inflow port into which the fluid discharged from the discharge port (221) flows. At least one of the discharge port (221) and the inflow port (311, 312) is an opening formed in a non-circular form such that the amount of change in the area of overlapping of the discharge port (221) and the inflow port (311, 312) occurring when the nozzle (200) is displaced from the initial position is larger than when the discharge port (221) and the inflow port (311, 312) are formed in circular forms of the same area. Since the change amount of the area of overlapping of the discharge port (221) and the inflow port (311, 312) occurring when the nozzle (200) is displaced from the initial position increases so that the fluid can flow into the inflow port (311, 312) in a short time, a response speed of the actuator is improved.
    • 本公开公开了一种通过移动喷嘴(200)并驱动致动器来控制从喷嘴(200)的排放口(221)排放的流体的伺服阀(100)。 伺服阀(100)包括设置有从排出口(221)排出的流体流入的第一流入口的接收器(300)。 排出口(221)和流入口(311,312)中的至少一方是以非圆形状形成的开口,使得排出口(221)的重叠面积的变化量与流入口 当喷嘴(200)从初始位置移位时出现的端口(311,312)大于当排出端口(221)和流入端口(311,312)形成为相同区域的圆形时的端口。 由于当喷嘴(200)从初始位置移位时发生的排出口(221)和流入口(311,312)的重叠区域的变化量增加,使得流体可以流入流入口 在短时间内,致动器的响应速度得到改善。
    • 7. 发明公开
    • SERVO-VALVE AND FLUIDIC DEVICE
    • 伺服阀和流体设备
    • EP3263913A1
    • 2018-01-03
    • EP17177983.8
    • 2017-06-27
    • Nabtesco Corporation
    • OHSHIO, KeitarohSHIBATA, YuASADA, Satoshi
    • F15B13/043
    • F16K31/423F15B13/0436F16K11/072
    • The disclosure discloses a servo-valve (100) that controls a fluid discharged from a discharge port (221) of a nozzle (200) by displacing the nozzle (200) and drives an actuator. The servo-valve (100) includes a receiver (300) that includes an inflow surface (310) provided with a first inflow port (311) and a second inflow port (312) into which the fluid discharged from the discharge port (221) flows. The nozzle (200) includes a force generation portion (223) that includes an end surface (224) provided with the discharge port (221) and an outer circumferential surface (225) formed in the periphery of the end surface (224). When the nozzle (200) is displaced from a neutral position toward the first inflow port (311), the fluid inside the second inflow port (312) is blown out toward the nozzle (200). The force generation portion (223) collides with the fluid blown out from the second inflow port (312) and causes an assisting force in a direction matching a nozzle displacement direction toward the first inflow port (311). The nozzle (200) easily moves by the assisting force generated in the force generation portion (223) and thus a response speed is improved.
    • 本公开公开了一种通过移动喷嘴(200)并驱动致动器来控制从喷嘴(200)的排放口(221)排放的流体的伺服阀(100)。 伺服阀100包括具有设置有从排出口221排出的流体的第一流入口311和第二流入口312的流入面310的接收器300, 流动。 喷嘴(200)包括力生成部(223),其包括设有排出口(221)的端面(224)和形成在端面(224)周围的外周面(225)。 当喷嘴(200)从中立位置向第一流入口(311)位移时,第二流入口(312)内的流体向喷嘴(200)喷出。 力产生部(223)与从第二流入口(312)吹出的流体碰撞,在与喷嘴位移方向一致的方向上产生朝向第一流入口(311)的辅助力。 喷嘴(200)容易通过在力产生部(223)中产生的辅助力而移动,因此响应速度提高。