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    • 7. 发明专利
    • Pressure reducing valve
    • 减压阀
    • JP2009301109A
    • 2009-12-24
    • JP2008151769
    • 2008-06-10
    • Fujikura Rubber Ltd藤倉ゴム工業株式会社
    • NITTA TOSHINORI
    • G05D16/06F16K1/32F16K17/30
    • G05D16/0669Y10T137/7794Y10T137/7812
    • PROBLEM TO BE SOLVED: To provide a pressure reducing valve for making it unnecessary to provide any lubricant, and for making it possible to perform the centering of the valve itself while providing any guide mechanism in a main valve and an exhaust valve. SOLUTION: This pressure reducing valve includes: an opening/closing valve 16 for opening/closing a midway between a primary pressure chamber 13 and a secondary pressure chamber 32; a diaphragm body 24 displacing according to the pressure fluctuation of the secondary pressure chamber; an exhaust hole through which the secondary pressure valve is communicatively connected with outside air and an exhaust valve 26 for opening/closing the exhaust hole 23, which are both formed in the diaphragm body; and a linkage member for linking the opening/closing valve with the exhaust valve so as to open/close in association with each other. The linkage member includes: a valve guide 40 having a valve passage 15 through which the first pressure chamber and the secondary pressure chamber are communicatively connected, and a pintle 30 put through the valve passage, and guided so as to be freely slidable to a pintle axial hole 41 formed in the valve guide. An opening/closing valve is formed on the lower end of the pintle, and an exhaust valve is formed on the upper end of the pintle, and the exhaust hole is formed on the extension of the valve passage and the pintle axial hole, and either the valve guide or the pintle is made of resin, and the other is made of metal. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种减压阀,用于不需要提供任何润滑剂,并且能够在主阀和排气阀中提供任何引导机构的同时实现阀本身的定心。 解决方案:该减压阀包括:用于打开/关闭主压力室13和次级压力室32中间的开/关阀16; 根据第二压力室的压力波动移动的隔膜体24; 二次压力阀与外部空气连通的排气孔和用于打开/关闭排气孔23的排气阀26,二者都形成在隔膜体中; 以及用于将打开/关闭阀与排气阀连接以便彼此相关联地打开/关闭的连杆构件。 连杆构件包括:阀引导件40,其具有阀通道15,第一压力室和第二压力室通过该通道连通;枢轴30穿过阀通道,并被引导以便可自由滑动到枢轴 形成在阀引导件中的轴向孔41。 在枢栓的下端形成有开闭阀,在枢栓的上端形成有排气阀,排气孔形成在阀通路和枢轴孔的延伸部上, 阀导向器或枢轴由树脂制成,另一个由金属制成。 版权所有(C)2010,JPO&INPIT