| 摘要 |
PURPOSE: An air leakage preventing device for the vehicle height maintenance is provided to prevent the air pressure loss of an air tank and an air spring by blocking a levelling valve in an air pressure circuit when a vehicle is parked for a long time. CONSTITUTION: An air leakage preventing device for the vehicle height maintenance includes a compressor(100) for generating air pressure by the force of an engine, an air tank(101) for storing the air pressure, a first pneumatic pipe(10a) for supplying the air pressure from the air tank, and a second pneumatic pipe(10b) for supplying air pressure from a levelling valve(102) to an air spring(103), electronic valves(1) mounted to the first and second pneumatic pipes, and a control unit(ECU;2) for driving the opening and closing state of the electronic valves.
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