| 摘要 |
PURPOSE: A regulator for controlling the residual pressure of an air spring is provided to easily control the internal residual pressure of the air spring of which assembly is completed in an optimal level. CONSTITUTION: A regulator for controlling the residual pressure of an air spring includes a gas inflow port (110), a gas discharge port (120), a gas injection port (130), a control valve (140), and an orifice (150). The gas inflow port is connected to a gas supply source (200) and supplies gas to open a pressure maintaining valve. The gas discharge port discharges gas discharged due to the opening of the pressure maintaining valve to the outside. The gas injection port is connected to the pressure maintaining valve (20) by a hose (H). The control valve controls a fluid path according to situations by being installed on a connection point of a gas inflow port side fluid path (111), a gas discharge port side fluid path (121), and a gas injection port side fluid path (131). The orifice is formed on the gas discharge port side fluid path and prevents the Po pressure of the pressure maintaining valve from being drastically decreased by controlling the flow of the gas flowing through the gas discharge port side fluid path. |
