| 摘要 |
According to an embodiment of the present invention, a relief valve can exclude a surface cutting process and a drill process which are carried out when manufacturing a conventional poppet component by realizing orifice action by means of a gap between a main poppet flow path and an outer circumferential surface of a pilot piston. Therefore, according to an embodiment of the present invention, the relief valve can be easily manufactured, and a production cost of the relief valve can be reduced. Moreover, according to an embodiment of the present invention, dynamic characteristics of the relief valve can be smoothly realized even if the orifice action is realized by means of a gap between the main poppet flow path and an outer circumferential surface of the pilot piston. |
