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    • 77. 发明专利
    • Gasket-type orifice and pressure-type flow controller employing same
    • 垫圈型流量控制器和压力型流量控制器
    • JP2010151698A
    • 2010-07-08
    • JP2008331743
    • 2008-12-26
    • Fujikin Inc株式会社フジキン
    • HIROSE TAKASHISHINOHARA TSUTOMUYOSHIDA SHUNEISHIKKO KOHEIYAMAJI MICHIO
    • G01F1/42G01F1/00
    • F16L23/20F15D1/025G01F1/40G01F1/42G05D7/0635
    • PROBLEM TO BE SOLVED: To provide a gasket-type orifice excellent in sealability and capable of saving a space, and a pressure-type flow controller employing the orifice. SOLUTION: The gasket-type orifice 1 includes an orifice base 2 having a through passage 2a at the center, an orifice base 3 having a through passage 3a communicating with the passage 2a of the orifice base 2 at the center, and an orifice plate 4 having an orifice hole formed at the center airtightly fitted between both orifice bases 2 and 3. It is provided in a fluid passage and has external end surfaces of both orifice bases 2 and 3 respectively serving as sealing surfaces 2c and 3c. An outer diameter of the orifice base 3 located downstream is formed to be larger than an outer diameter of the orifice base 2 located upstream among both orifice bases 2 and 3. An outer peripheral part of an internal end surface of the orifice base 3 located downstream is to serve as a sealing surface 3d. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供密封性优异并且能够节省空间的垫圈型孔口以及采用该孔口的压力型流量控制器。 解决方案:垫片型孔口1包括在中心具有贯通通道2a的孔口基座2,孔口底座3具有与中心的孔底座2的通道2a连通的通路3a, 孔板4具有形成在气密地配合在两个孔底座2,3之间的中心处的孔口。它设置在流体通道中,并且分别具有用作密封表面2c和3c的两个孔底座2和3的外端表面。 位于下游的孔口基部3的外径形成为大于位于两个孔基部2和3之间的孔基部2的外径。孔基部3的内端面的外周部分位于下游 用作密封面3d。 版权所有(C)2010,JPO&INPIT