| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pressure reducing valve that can precisely regulate pressure even in an environment involving sudden fluctuations in supply side gas pressure, by suppressing overtravel of a piston. <P>SOLUTION: The pressure reducing valve 1 ensures sealing property between a pressure reduction chamber 26 and a pressure regulation chamber 32 with a lip seal 37 arranged on an outer circumference 25a of the piston 25. An O ring 38 is arranged as an annular member on the outer circumference 25a of the piston 25, and the O ring 38 is brought into slide contact with an inner circumference 24a of a cylinder 24 to suppress overtravel of the piston 25. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
