PNEUMATIC SPRING ARRANGEMENT OR PNEUMATIC SPRING DAMPER WITH INTEGRATED VALVE CONTROL

摘要

An air spring assembly or air spring damper with an integrated valve control for controlling a level position of a vehicle or of a driver's cab includes a rolling tube, a lid and an air spring bellows which together delimit a pressure chamber with compressed air. A control valve includes an actuation device for feeding compressed air into the pressure chamber or for discharging compressed air from the pressure chamber. A compression spring device has a first end operatively connected to the rolling piston or the lid and a second end operatively connected to the actuation device. The compression spring device is configured with at least two parts including a central spring facing towards the rolling piston or the lid and a control valve biasing spring facing towards the control valve. The central spring is biased to a greater extent than the control valve biasing spring.

主权项

1. An air spring assembly or air spring damper with an integrated valve control for controlling level position of a vehicle or of a driver's cab, comprising:
a rolling tube; a lid; an air spring bellows which, together with the rolling tube and the lid, delimits a pressure chamber with compressed air; a control valve for feeding compressed air into the pressure chamber or for discharging compressed air from the pressure chamber; and a compression spring device, a first end of the compression spring device being operatively connected to the rolling piston or the lid, and second end of the compression spring device being operatively connected to the actuation device the control valve in order to switch the control valve depending on an air spring stroke, the compression spring device being configured with at least two parts including a central spring facing towards the rolling piston or the lid and a control valve biasing spring facing towards the control valve, the central spring being biased to a greater extent than the control valve biasing spring.