An air spring includes a closing member, a rolling piston, and an air spring bellows connected to the rolling piston and the closing member to form a fluid-filled pressure chamber. A level control system for supplying and/or discharging fluid may be integrated into the pressure chamber to control level position based on air spring stroke. The level control system may have a control valve and an actuator connected to the control valve. The actuator may include a guide tube coupled to the rolling piston or closing member, and movably arranged within the pressure chamber. An actuating member may include a pin member and may operate the control valve. A compression spring may have a central spring and a biasing spring, and the guide tube may include a control flange coupled to the pin member, and the biasing spring may be supported to press the pin member against the control valve.
Air spring for controlling the level position of a driver's cabin or a motor vehicle
2021-07-13
Patent
Elektronische Ressource
Englisch
AIR SPRING FOR CONTROLLING THE LEVEL POSITION OF A DRIVER'S CABIN OR A MOTOR VEHICLE
Europäisches Patentamt | 2019
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