Air suspension system

An air suspension system in which air compressed by a compressor is supplied to a plurality of air chambers provided between a vehicle body side and a wheel side and configured to perform vehicle height adjustment in accordance with supply and discharge of air, the air suspension system comprising:

• a discharge port connected to a first discharge port side of the compressor, and including a discharge path is capable of discharging compressed air on the discharge port side:
• and
• a discharge path opening/closing valve allowing execution of setting to a closed position in which circulation of air in the discharge path is cut off, and an open position in which the air in the discharge path can flow,
• wherein the compressor comprises:
• a rod connected to a piston and extending in a moving direction of the piston, a side of the rod not connected to the piston is connected to a connection portion,
• a needle connected to the connection portion extending in the moving direction of the piston,
• an armature reciprocating the needle in the moving direction of the piston, and
• urging means urging the needle in a direction of a top dead center of the piston,
• wherein the urging means is a spring,
• wherein the discharge path opening/closing valve remains in a closed position from a time the compressor is stopped to a restart time of the compressor, and
• when the piston is subjected to a force on one side of the direction of travel by a force due to pneumatic pressure, the spring exerts force on the piston on a side opposite to the one side.

An air suspension system comprising:

• a plurality of air chambers provided between a vehicle body side and a wheel side and configured to perform vehicle height adjustment in accordance with supply and discharge of air;
• a compressor compressing air;
• a tank accumulating the air compressed by the compressor, with the air compressed by the compressor being stored in the tank, the air in the tank being supplied to the air chambers;
• a discharge port connected to a first discharge port side of the compressor, and including a discharge path which is capable of discharging compressed air on the discharge port side;
• and
• a discharge path opening/closing valve allowing execution of setting to a closed position in which circulation of air in the discharge path is cut off, and an open position in which the air in the discharge path can flow,
• wherein the compressor comprises:
• a rod connected to a piston and extending in a moving direction of the piston, a side of the rod not connected to the piston is connected to a connection portion,
• a needle connected to the connection portion extending in the moving direction of the piston,
• an armature reciprocating the needle in the moving direction of the piston, and
• urging means urging the needle in a direction of a top dead center of the piston,
• wherein the urging means is a spring,
• wherein the discharge path opening/closing valve remains in a closed position from a time the compressor is stopped to a restart time of the compressor, and
• when the piston is subjected to a force on one side of the direction of travel by a force due to pneumatic pressure, the spring exerts force on the piston on a side opposite to the one side.