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    • 4. 发明授权
    • Pressure type flow rate control device
    • 压力式流量控制装置
    • US09574917B2
    • 2017-02-21
    • US13483328
    • 2012-05-30
    • Atsushi HidakaMasaaki NagaseRyousuke DohiNobukazu IkedaKouji Nishino
    • Atsushi HidakaMasaaki NagaseRyousuke DohiNobukazu IkedaKouji Nishino
    • G05D7/06G01F1/36G01F15/02
    • G01F1/363G01F15/024G05D7/0635Y10T137/7737Y10T137/776Y10T137/7761
    • A pressure type flow rate control device provides flow rate control for gas at 100-500° C. with an error not more than 1.0% F.S. The pressure type flow rate control device includes a valve body with a fluid passage, a valve portion interposed in the passage, a valve drive unit driving the valve portion to open/close the passage, a restriction mechanism on the downstream side of the valve portion in the passage, a temperature detector detecting gas temperature between the valve portion and restriction mechanism, a pressure detector detecting gas pressure between the valve portion and restriction mechanism, and an arithmetic control device controlling flow rate of gas in the restriction mechanism based on values detected by the temperature detector and the pressure detector, wherein the temperature detector is inserted in an attachment hole of the valve body at a position just above an outlet side fluid passage.
    • 压力式流量控制装置为100-500℃的气体提供流量控制,误差不超过1.0%F.S. 压力式流量控制装置包括具有流体通道的阀体,插入通道中的阀部分,驱动阀部分以打开/关闭通道的阀驱动单元,在阀部分的下游侧的限制机构 在通道中,检测器检测阀部分和限制机构之间的气体温度,检测阀部分和限制机构之间的气体压力的压力检测器以及根据检测到的值控制限制机构中的气体流量的算术控制装置 通过温度检测器和压力检测器,其中温度检测器被插入在阀体的安装孔中,恰好在出口侧流体通道的正上方。