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    • 51. 发明公开
    • Fluid-powered cylinder
    • 流体动力缸
    • EP0723083A2
    • 1996-07-24
    • EP96300237.3
    • 1996-01-11
    • IMI Norgren GmbH
    • Sonntag, Udo
    • F15B15/08
    • F15B15/082
    • A rodless pneumatic cylinder includes main exhaust ports defined by the open ends (10, 11) of a pair of fixed tubular members (8, 9) that extend, respectively, into the cylinder body (1) from its opposed ends (2, 3). The main piston 14 of the rodless cylinder has an axial bore (18) formed in it in which is slidably mounted a small piston (19) that serves mutually to isolate the working chambers (16, 17) of the cylinder. The bore (18) carries seals (20, 21) adjacent to its opposed ends whereby, during motion of the piston (14), the bore (18) sealingly receives one or other of the tubular members (8, 9) at a pre-determined stage during the motion thereby effectively closing the main exhaust port (10 or 11). During further motion of the piston (14), air can, therefore, exhaust only through a throttled auxiliary exhaust port (12, 13) and such further motion of the piston (14) is thus cushioned.
      The arrangement provides for a greater extent of cushioning relative to known arrangements in which the working chambers (16, 17) are mutually isolated by a barrier fixedly secured in the bore (18).
    • 一种无杆气压缸包括主排气口,主排气口由一对固定管状件(8,9)的开口端(10,11)限定,所述固定管状件分别从其相对端(2,3)延伸到缸体(1) )。 无杆气缸的主活塞14具有形成在其中的轴向孔(18),其中可滑动地安装有用于相互隔离气缸的工作室(16,17)的小活塞(19)。 孔(18)带有与其相对端相邻的密封件(20,21),由此在活塞(14)运动期间,孔(18)以预先密封的方式密封地容纳管状件(8,9)中的一个或另一个 在运动过程中确定的阶段,从而有效地关闭主排气口(10或11)。 因此,在活塞(14)的进一步运动期间,空气可以仅通过节流的辅助排气口(12,13)排出,并且因此活塞(14)的这种进一步的运动被缓冲。 与其中工作室(16,17)通过牢固地固定在孔(18)中的隔板相互隔离的已知布置相比,该布置提供了更大程度的缓冲。
    • 52. 发明公开
    • Fluid-powered cylinder
    • DruckmittelbetätigterArbeitszylinder
    • EP0708254A2
    • 1996-04-24
    • EP95307196.6
    • 1995-10-11
    • IMI Norgren GmbH
    • Sonntag, Udo
    • F15B15/22
    • F15B15/223F15B15/22
    • A double-acting pneumatic cylinder is characterised by the provision of a pair of sealing elements (20,21 and 27,28) respectively located on either side of the piston (4) by means of rods (19 and 23,24) slidably mounted in longitudinal bores formed in the piston (4). At the commencement of the cylinder's in-stroke, the rod (19) and its associated sealing element (20,21) is in an extended position and serves to seal off the main exhaust port (13',14') while the piston (4) is still relatively distantly located from the end of its in-stroke. During further in-stroking the piston (4), air can therefore exhaust only through the auxiliary exhaust port (15') and the motion is thus cushioned. The out-stroke of the cylinder is similarly cushioned over a relatively large distance by virtue of the sealing element (27,28) adopting an extended position and closing off the main exhaust port (13,14), the air exhausting through the auxiliary exhaust port (15).
    • 双作用气动缸的特征在于,通过杆(19和23,24)分别设置在活塞(4)的任一侧上的一对密封元件(20,21和27,28),其可滑动地安装 在活塞(4)中形成的纵向孔中。 在缸的中行程开始时,杆(19)及其相关联的密封元件(20,21)处于延伸位置,并且用于在主排气口(13',14')处密封,同时活塞 4)距离其行程末端仍然相对较远。 在进一步的冲程活塞(4)期间,空气因此可以仅通过辅助排气口(15')排出,因此运动被缓冲。 由于密封元件(27,28)采用延伸位置并且关闭主排气口(13,14),气缸排出的排气通过辅助排气 港(15)。
    • 53. 发明公开
    • Slide valve
    • 滑阀
    • EP0685670A2
    • 1995-12-06
    • EP95303733.0
    • 1995-05-31
    • IMI NORGREN LIMITED
    • Harrold, Martyn John
    • F16K11/074F16K11/065
    • F16K11/0655F16K11/074Y10T137/86638Y10T137/86855
    • A slide valve, especially for use in a compressed air supply installation, comprises a body (1) defining an inlet passageway (3) and an outlet passageway (4) and a vane (9) having an orifice therethrough and movable laterally relative to the passageways (3,4) between a valve-open position in which the orifice is in register with the passageways (3,4) thereby permitting fluid to flow through the valve, and a valve-closed position in which the orifice is wholly out of register with the passageways (3,4) thereby isolating the inlet passageway (3) from the outlet passageway (4). The vane (9) defines, at least in part, an exhaust passageway (15) that, in the valve-closed position, connects the outlet passageway (4) to atmosphere via a further exhaust passageway (16,17) formed in the body (1) whereby, in the valve-closed position, the downstream side of the installation will automatically become depressurised (Fig 2).
    • 一种特别用于压缩空气供应装置的滑阀包括限定进口通道(3)和出口通道(4)的主体(1)和具有穿过其中的孔并且可相对于 通道(3,4)在其中孔与通道(3,4)对齐从而允许流体流过阀的阀打开位置和其中孔完全脱离的阀关闭位置之间 与通道(3,4)对准,从而将入口通道(3)与出口通道(4)隔离。 叶片(9)至少部分地限定排气通道(15),该排气通道在阀关闭位置中通过形成在本体中的另一排气通道(16,17)将排气通道(4)连接到大气 (1),在阀关闭位置,设备的下游侧将自动减压(图2)。
    • 55. 发明公开
    • I/P converters
    • 电动水龙头
    • EP0503894A1
    • 1992-09-16
    • EP92302027.5
    • 1992-03-10
    • WATSON SMITH LIMITED
    • Carey, David CoronStoney, Stuart Douglas
    • F15B5/00G05D16/20
    • G05D16/2093Y10T137/2409Y10T137/261Y10T137/7761
    • A fail-safe, precision current-to-pressure converter for providing a regulated pneumatic output pressure proportional to an electrical control current (21) includes a main valve member (4) for regulating the pneumatic output pressure at outlet (3), operation of the valve member (4) being controlled by the pressure of control fluid contained in a chamber (11). The control fluid pressure is controlled by admitting control fluid into the chamber (1) via a continuously pulsed, electromagnetically actuated on/off reed valve (16) and simultaneously allowing control fluid continuously to exhaust to atmosphere via a fixed bleed orifice (17), the rate of admittance of control fluid into the chamber (11) relative to the exhaust rate from the orifice (17) being variable so that the desired, substantially constant output pressure, as dictated by the electrical current input (21) and as measured by a transducer (15) that produces a feed-back signal, will be attained. In the event that the input current (21) fails, the valve (16) remains closed and continued exhaust of control fluid from the chamber (11) causes the control fluid pressure, and therefore the output pressure at (3), to fall to atmospheric pressure, ie the converter fails to "zero" in such event.
      Because of its relatively simple design, a converter of the invention is somewhat more rugged and less expensive to manufacture than prior I/P converters.
    • 用于提供与电气控制电流(21)成比例的调节气动输出压力的故障安全精密电流 - 压力转换器包括用于调节出口(3)处的气动输出压力的主阀构件(4),操作 阀构件(4)由容纳在腔室(11)中的控制流体的压力控制。 控制流体压力通过经由连续脉冲的电磁致动的开/关簧片阀(16)允许控制流体进入腔室(16)并且同时允许控制流体经由固定排放口(17)连续排放到大气中来控制, 控制流体相对于来自孔口(17)的排气速度进入腔室(11)的导纳速率是可变的,从而使得由电流输入(21)所指示的所需的基本上恒定的输出压力,并由 将产生产生反馈信号的传感器(15)。 在输入电流(21)失效的情况下,阀(16)保持关闭,并且控制流体从腔室(11)的持续排气导致控制流体压力,因此输出压力(3)下降到 大气压,即转换器在这种情况下不能“零”。 由于其相对简单的设计,与现有I / P转换器相比,本发明的转换器的制造更加坚固并且成本更低。
    • 56. 发明公开
    • Fluid control and conditioning units
    • Anlagen zur Steuerung und Konditionierung eines Fluids。
    • EP0487341A1
    • 1992-05-27
    • EP91310741.3
    • 1991-11-21
    • Norgren Martonair Limited
    • Wates, Michael John
    • F15B13/00F16N7/34F16B37/00
    • F15B13/0821F15B13/0817F15B13/0828F15B13/0832F15B13/0892F15B21/048F16B37/04F16N7/34
    • The respective body portions (3, 11) of a compressed air filter/regulator unit (1) and lubricator unit (2), through which the compressed air sequentially flows, are sealingly assembled together by two bolts (14, 14′) that extend through respective through bores formed in the body portion (11). The respective heads (17, 17′) of the two bolts (14, 14′) are accommodated in counterbores (18, 18′) formed in the body portion (11) and the threaded ends (19, 19′) respectively of the bolts (14, 14′) engage respective nuts (22, 22′) held captive in blind bores (20, 20′) formed in the body portion (3) of the filter/regulator unit (1). Intermediate the bolt heads (17, 17′) and outer face (23) of the lubricator unit 11, the counterbores (18, 18′) are traversed by slots (24, 24′) in which square nuts may be located and held captive thereby permitting, if desired, a further control or conditioning unit to be connected to the assembly in the same manner as the unit 2 is connected to the unit 1.
    • 压缩空气过滤器/调节器单元(1)和润滑器单元(2)的相应主体部分(3,11)通过两个螺栓(14,14分钟)密封地组装在一起 通过形成在主体部分(11)中的相应通孔。 两个螺栓(14,14分钟)的各自的头部(17,17分钟)容纳在形成在主体部分(11)中的沉孔(18,18分钟)中,并且螺纹端部(19,19分钟) 螺栓(14,14分钟)与形成在过滤器/调节器单元(1)的主体部分(3)中的盲孔(20,20分钟)中的相应螺母(22,22分钟)啮合。 使润滑器单元11的螺栓头(17,17分钟)和外表面(23)中间,通过槽(24,24分钟)横穿位于其中的方形螺母的槽(18,18分钟) 从而如果需要,允许另外的控制或调节单元以与单元2连接到单元1相同的方式连接到组件。