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    • 4. 发明公开
    • HYDRAULIC STAGE
    • EP3587831A1
    • 2020-01-01
    • EP18179688.9
    • 2018-06-25
    • Microtecnica S.r.l.
    • MEDAGLIA, Agostino
    • F15B13/043F15B5/00
    • A hydraulic stage comprising: a hydraulic element located between and sealing a first and second chamber, wherein the first chamber comprises at least one aperture through which fluid is arranged to flow into or out of the first chamber; and at least one piezoelectric element which is positioned adjacent to the at least one aperture and is arranged to deform in response to an applied potential difference such that it blocks or obstructs the at least one aperture to a varying degree according to the level of deformation, so as to control fluid flow into or out of the first chamber. The level of deformation of the piezoelectric element thus reduces or increases an effective size of the inlet or outlet aperture to which it is adjacent, restricting or permitting an increase in fluid flow accordingly. Generally, the piezoelectric element is arranged to restrict fluid flow into or out of the first chamber when in a neutral position (i.e. when no potential difference is applied) so that deformation away from the aperture reduces the obstructing effect and permits an increase in fluid flow into or out of the first chamber. The deformation of the piezoelectric element can be controlled by changing the potential difference applied to the piezoelectric element, enabling bulky and heavy hydraulic elements to be controlled using a small potential difference without the use of any electronic actuators such as solenoids.
    • 7. 发明公开
    • Elektropneumatisches Stellgerät und elektropneumatische Baugruppe
    • 电动气动执行器和电动气动组件
    • EP2728201A3
    • 2017-08-23
    • EP13004694.9
    • 2013-09-27
    • Samson Aktiengesellschaft
    • Valentin-Rumpel, Frank
    • F15B20/00F15B5/00
    • F15B21/08F15B5/006F15B13/043F15B15/202F15B2013/006F15B2211/30565F15B2211/6336F15B2211/6653F15B2211/6656F15B2211/8855
    • Bei einem elektropneumatischen Feldgerät (7), wie elektropneumatischer Stellungsregler, I/P-Umformer oder dergleichen, umfassend wenigstens einen elektrischen Feldeingang (18), einen pneumatischen Versorgungseingang (33), wenigstens eine Elektronikkomponente, die mit dem wenigstens einen elektrischen Feldeingang sowie gegebenenfalls mit dem pneumatischen Versorgungseingang verbunden ist; und wenigstens einen Feldausgang (A 1 ,A 2 ,A 3 ,A 4 ), an dem anhand eines über den wenigstens einen elektrischen Feldeingang empfangenen Feldsignals, insbesondere Stell- und/oder Regelsignals, ein Feldausgangssignal (S1,S2,S3,S4) abgebbar ist, wobei eine Gruppe aus wenigstens zwei modularen Elektronik- und/oder Pneumatikkomponenten unterschiedlicher Funktionalität und durch wenigstens einen modularen Steckplatz (23a-d) zur Belegung mit jeweils einer Elektronik- und/oder Pneumatikkomponente aus der Gruppe, wobei die wenigstens zwei Elektronik- und/oder Pneumatikkomponenten und der wenigstens eine Steckplatz derart modular aufeinander abgestimmt sind, dass deren elektrische und gegebenenfalls pneumatische Schnittstellen (33a-d,35a-d,25a-d,37a-d) bei Belegung des Steckplatzes ineinander übergehen.
    • 在一个电动气动现场装置(7),如电 - 气动定位器和I / P转换器或类似物,其包括至少一个电场输入端(18),气动供给输入端(33),与所述至少一个电场输入和任选的至少一个电子部件 连接到气动供应输入; 和至少一个阵列输出端(A1,A2,A3,A4),其能够通过经由所述至少一个电场输入接收到的场的信号的方式发出的,特别是致动器和/或控制信号,场输出信号(S1,S2,S3,S4),其特征在于 通过从组,其中所述至少两个电子和/或气动元件的相应的电子和/或气动元件的一组不同的功能性的至少两个模块化的电子和/或气动元件,并通过用于占用至少一个模块化槽(23A-d)的 并且所述至少一个槽彼此模块化匹配,使得当所述槽被占用时,它们的电气接口和可选气动接口(33a-d,35a​​-d,25a-d,37a-d)合并到彼此中。
    • 8. 发明公开
    • INTEGRATED TRANSDUCER
    • INTEGRIERTER WANDLER
    • EP3120030A2
    • 2017-01-25
    • EP15714718.2
    • 2015-03-18
    • Fisher Controls International LLC
    • GASSMAN, George, W.
    • F15B5/00F16K31/06G05D16/20
    • F16K31/42F15B5/003F16K31/0672F16K31/0675F16K31/0682
    • A transducer for a connection to a fluid pressure source having a mechanism for setting a pneumatic output by way of an electrical input signal. The transducer provides a lower housing assembly and an upper housing assembly. The lower housing assembly comprises lower housing configured to receive a supply nozzle. The supply nozzle fluidly communicates with a supply port and intermittently fluidly communicates with an output port of the lower housing through an internal fluid passageway. The lower housing further comprises an exhaust nozzle fluidly communicating with an exhaust port and intermittently fluidly communicates with the output port of the lower housing through the internal fluid passageway. The upper housing assembly comprises an upper housing configured to receive a coil and an armature such that the upper housing, coil and armature define a latching electromagnetic circuit that provides alternating contact of the armature with the supply nozzle and the exhaust nozzle of the lower housing assembly.
    • 用于连接到流体压力源的换能器,其具有通过电输入信号设定气动输出的机构。 传感器提供下壳体组件和上壳体组件。 下壳体组件包括构造成接收供应喷嘴的下壳体。 供应喷嘴与供应口流体连通并且通过内部流体通道间歇地与下壳体的输出端口流体连通。 下壳体还包括与排气口流体连通并与下壳体的输出端口通过内部流体通道间断地流体连通的排气喷嘴。 上壳体组件包括被配置为容纳线圈和电枢的上壳体,使得上壳体,线圈和电枢限定了闭锁电磁回路,其提供电枢与供电喷嘴和下壳体组件的排气喷嘴的交替接触 。
    • 9. 发明公开
    • POSITIONER
    • 定位器
    • EP3070340A1
    • 2016-09-21
    • EP16160801.3
    • 2016-03-17
    • Azbil Corporation
    • INOUE, Kazuhisa
    • F15B5/00F15B19/00G05B19/19F16K37/00
    • G05D7/0629F15B5/006F15B19/002F15B2211/6343F16K37/0083G05B2219/41246
    • [Problem] To achieve stable fluid control by suppressing occurrence of overshooting, hunting, and fluctuation of the valve opening even when the ambient temperature greatly changes.
      [Means for Resolution] A first table TA for defining the relationship between the sliding resistance index µk of a gland packing and the ambient temperature for each type of the gland packing is provided. A second table TB for defining control parameters corresponding to hysteresis levels (HYS) for each size of the setting/operating device is provided. By repeating, at regular intervals, the acquisition of the sliding resistance index µk at present corresponding to the ambient temperature TR at present and the type of a gland packing from the first table TA and the selection of the control parameter corresponding to the size of the setting/operating device and the hysteresis level (HYS) obtained from the sliding resistance index µk at present from the second table TB, the valve opening of the regulating valve is controlled using the selected control parameter.
    • [问题]即使在周围温度变化大的情况下,也能够通过抑制过冲,振荡以及阀开度的变动来实现稳定的流体控制。 [解决方法]提供用于定义压盖填料的滑动阻力指数μk与每种类型压盖填料的环境温度之间的关系的第一表格TA。 提供了用于定义对应于设置/操作装置的每个尺寸的滞后水平(HYS)的控制参数的第二表格TB。 通过以规定的间隔反复取得与当前的环境温度TR相对应的当前的滑动阻力指数μk和来自第一表格TA的压盖密封件的种类以及与第一表格TA的大小相对应的控制参数的选择 设定/操作装置以及当前从第二表格TB中的滑动阻力指数μk获得的滞后水平(HYS),使用选择的控制参数来控制调节阀的阀门开度。