| 摘要 |
PURPOSE: An air spring unit of an air suspension is provided to improve the degree of freedom in design by minimizing interference with surrounding components by forming all relevant components, which operate by reacting to the vehicle height, in an air spring back. CONSTITUTION: An air spring unit(1) of an air suspension contains a lower tube(11) and an upper tube(13) provided in a sliding structure in an air spring back(7), an air discharge device controlling the opening and closing of an air discharge hole(H4) of the lower tube to control the discharge of air inside the air spring back, an air supply device controlling the opening and closing of an air supply hole(H6) of the upper tube to control the supply of air to the inside of the air spring back, and an air control device controlling the opening and closing of each connecting hole(H1,H2,H3) of the lower tube to control the air supplied to the air spring back minutely. |
