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    • 37. 发明授权
    • Structure or construction for mounting a pressure detector
    • 用于安装压力检测器的结构或结构
    • US06606912B2
    • 2003-08-19
    • US09825340
    • 2001-04-04
    • Tadahiro OhmiTakashi HiroseEiji IdetaNobukazu IkedaRyousuke DohiKouji NishinoKazuhiro YoshikawaSatoshi KagatsumeJun HiroseKazuo FukasawaHiroshi KoizumiHideki Nagaoka
    • Tadahiro OhmiTakashi HiroseEiji IdetaNobukazu IkedaRyousuke DohiKouji NishinoKazuhiro YoshikawaSatoshi KagatsumeJun HiroseKazuo FukasawaHiroshi KoizumiHideki Nagaoka
    • G01L700
    • G01L19/0023G01L19/0645G01L19/145G01L19/147
    • A construction for mounting a pressure detector prevents the detector diaphragm from being strained by stress applied to the pressure detector as the detector is mounted in a fixture main body provided in a pipe line or the like, thereby keeping the output characteristics and temperature characteristics of the detector from greatly differing before and after the mounting. The pressure detector is constructed by combining and fastening together a diaphragm base having a diaphragm and a sensor base having a sensor element therein that is activated by displacement of the diaphragm base. The pressure detector, with a gasket placed thereunder, is disposed in a mounting hole of a fixture main body that is mounted in a pipe line. The pressure detector is air-tightly pressed and fastened by a presser member inserted from above in the mounting hole. The presser member is brought in contact with a block upper surface of the diaphragm base, and the gasket is also brought in contact with the block lower surface of the diaphragm base. A shallow groove is defined in the form of a ring on the lower surface of the block at a place inward of the portion contacting the metal gasket so that the shallow groove absorbs strain caused by the presser member.
    • 用于安装压力检测器的结构防止了检测器膜片被施加到压力检测器上的应力而被应变,因为检测器安装在设置在管线等中的夹具主体中,从而保持了输出特性和温度特性 检测器在安装前后差异很大。 压力检测器通过将具有隔膜的膜片基座和具有传感器元件的传感器基座组合并紧固在一起而构成,该传感器基座通过隔膜基座的位移而被激活。 压力检测器,其上放置有垫圈,设置在安装在管道中的固定装置本体的安装孔中。 压力检测器通过从安装孔中从上方插入的压紧构件气密地按压并紧固。 压板构件与隔膜基座的块上表面接触,并且垫圈也与隔膜基座的块下表面接触。 浅槽在块体的下表面上在与金属垫片接触的部分的内侧的位置处以环的形式限定,使得浅槽吸收由压紧构件引起的应变。
    • 38. 发明授权
    • Pressure-type flow rate control apparatus
    • 压力式流量控制装置
    • US06152168A
    • 2000-11-28
    • US284352
    • 1999-05-24
    • Tadahiro OhmiTetu KagazumeKazuhiko SugiyamaRyousuke DohiTomio UnoKouji NishinoHiroyuki FukudaNobukazu IkedaMichio Yamaji
    • Tadahiro OhmiTetu KagazumeKazuhiko SugiyamaRyousuke DohiTomio UnoKouji NishinoHiroyuki FukudaNobukazu IkedaMichio Yamaji
    • F16K17/22G05D7/06
    • G05D7/0647Y10T137/7759Y10T137/7761
    • A pressure-type flow rate control apparatus for use especially in the gas supply system in semiconductor manufacturing facilities. The flow control apparatus is provided with a bore-variable orifice, which permits easy switching of the fluid flow rate control range as well as size reduction of the pressure-type flow control apparatus, and offers other advantages including improved gas replaceability, prevention of dust formation, and reduced manufacturing costs of the flow control system. The apparatus comprises an orifice, a control valve provided on the upstream side of the orifice, a pressure detector provided between the control valve and the orifice, and a control unit to calculate a fluid flow rate Q on the basis of a pressure P1 detected by the pressure detector with the equation Q=KP1 (K=constant) and to output in a drive for the control valve the difference between the set flow rate signal Qs and the calculated flow rate signal Q as control signal Qy, wherein the pressure P1 on the upstream side of the orifice is regulated by actuating the control valve for controlling the flow rate of the fluid downstream of the orifice with the ratio P2/P1 between the pressure P1 on the upstream side of the orifice and the downstream pressure P2 maintained at not higher than the ratio of the critical pressure of the controlled fluid, characterized in that a direct touch type metal diaphragm valve unit functions as the orifice and that the ring-shaped gap between the valve seat and the diaphragm serves a variable orifice wherein the gap is adjusted by the orifice drive.
    • PCT No.PCT / JP98 / 03620 Sec。 371日期1999年5月24日 102(e)日期1999年5月24日PCT提交1998年8月13日PCT公布。 公开号WO99 /​​ 09463 日期1999年2月25日一种特别用于半导体制造设备中的气体供给系统的压力式流量控制装置。 流量控制装置设置有可变孔口,其允许容易地切换流体流量控制范围以及压力型流量控制装置的尺寸减小,并且提供其它优点,包括改进的气体替换性,防止灰尘 形成和降低流量控制系统的制造成本。 该装置包括孔口,设置在孔口的上游侧的控制阀,设置在控制阀和孔口之间的压力检测器,以及控制单元,用于根据检测到的压力P1计算流体流量Q 压力检测器具有等式Q = KP1(K =常数),并且在控制阀的驱动器中输出设定流量信号Qs和计算流量信号Q之间的差作为控制信号Qy,其中压力P1 on 孔口的上游侧通过致动用于控制孔口下游流体的流速的控制阀来调节,孔口上游侧的压力P1与保持在不同的孔口的下游压力P2之间的比率P2 / P1 高于受控流体的临界压力的比例,其特征在于,直接触摸式金属隔膜阀单元用作孔口,并且阀海之间的环形间隙 并且隔膜用于可变孔口,其中间隙由孔口驱动器调节。
    • 39. 发明授权
    • Automatic pressure regulator for flow rate regulator
    • 用于流量调节器的自动压力调节器
    • US08757197B2
    • 2014-06-24
    • US12996370
    • 2009-04-06
    • Kaoru HirataKatsuyuki SugitaKouji NishinoRyousuke DohiNobukazu Ikeda
    • Kaoru HirataKatsuyuki SugitaKouji NishinoRyousuke DohiNobukazu Ikeda
    • F16K31/02
    • G05D7/0635Y10T137/7761
    • The invention prevents overshoot from occurring in flow rate on the output side of a flow rate regulator when output flow rate is changed or the gas type distributed is changed. Thus, an automatic pressure regulator is provided to supply gas pressure to a flow rate regulator that includes a piezoelectric element driving type pressure regulating valve, a control pressure detector provided on the output side of the pressure regulating valve, and a controller to which a detected value P2 of the control pressure detector and a set value Pst for control pressure are input, wherein the controller supplies a control signal to a piezoelectric element driving unit of the pressure regulating valve using a proportional control system to perform valve opening regulation in which the proportional control system of the controller is set to control to bring about a residual deviation in control pressure by disabling an integral action.
    • 本发明防止了当流量改变或气体分布改变时流量调节器的输出侧的流量发生过冲。 因此,提供了一种自动压力调节器,用于向包括压电元件驱动型压力调节阀的流量调节器,设置在压力调节阀的输出侧的控制压力检测器和控制器提供气体压力, 输入控制压力检测器的值P2和用于控制压力的设定值Pst,其中控制器使用比例控制系统向压力调节阀的压电元件驱动单元提供控制信号,以执行阀开度调节,其中比例 控制器的控制系统设置为通过禁用积分作用来控制控制压力的残留偏差。
    • 40. 发明授权
    • Cam valve
    • 凸轮阀
    • US08561966B2
    • 2013-10-22
    • US12439572
    • 2007-08-21
    • Ryousuke DohiKouji NishinoNobukazu IkedaYohei Sawada
    • Ryousuke DohiKouji NishinoNobukazu IkedaYohei Sawada
    • F16K31/44F16K31/02
    • F16K31/04F16K7/16F16K31/52491
    • In a step motor driven cam valve a stem freely ascends and descends within a body having an in-flow passage, an out-flow passage, a valve chamber, and a valve seat. The stem is descended by an actuator, composed of a step motor and a cam mechanism located at a position above the stem, that changes a rotational motion of the step motor to a linear motion and transmits the linear motion to the stem. A diaphragm within a valve chamber or a valve body at a lower end part of the stem rests on the valve seat. A lift support mechanism that supports the actuator to freely ascend and descend is arranged at a bonnet that covers the valve chamber. A height fine-adjustment mechanism, arranged at the lift supporting mechanism, finely adjusts the height of the actuator relative to the stem so as to perform zero-point adjustment of the valve.
    • 在步进马达驱动的凸轮阀中,杆在具有流入通道,​​流出通道,阀室和阀座的主体内自由上升和下降。 杆由致动器下降,该致动器由位于杆上方的位置的步进电动机和凸轮机构组成,其将步进电动机的旋转运动改变为线性运动,并将线性运动传递到杆。 阀室内的隔膜或阀杆的下端部的阀体位于阀座上。 支撑致动器自由上升和下降的提升支撑机构布置在覆盖阀室的发动机罩上。 布置在升降支撑机构处的高度精细调节机构,精细地调节致动器相对于杆的高度,以便执行阀的零点调节。