Invention Grant
- Patent Title: Pneumatic spring arrangement or pneumatic spring damper with integrated valve control
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Application No.: US14772786Application Date: 2013-03-04
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Publication No.: US09604520B2Publication Date: 2017-03-28
- Inventor: Michael Weber , Stephan Dehlwes
- Applicant: Vibracoustic CV Air Springs GmbH
- Applicant Address: DE Hamburg
- Assignee: VIBRACOUSTIC CV AIR SPRINGS GMBH
- Current Assignee: VIBRACOUSTIC CV AIR SPRINGS GMBH
- Current Assignee Address: DE Hamburg
- Agency: Leydig, Voit & Mayer, Ltd.
- International Application: PCT/EP2013/000619 WO 20130304
- International Announcement: WO2014/135174 WO 20140912
- Main IPC: B60G17/033
- IPC: B60G17/033 ; B60G17/048 ; B60G17/052 ; F16F9/04 ; B60G11/27 ; B60G11/58 ; B60G17/056 ; B62D33/06 ; F16F13/00

Abstract:
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.
Public/Granted literature
- US20160016452A1 PNEUMATIC SPRING ARRANGEMENT OR PNEUMATIC SPRING DAMPER WITH INTEGRATED VALVE CONTROL Public/Granted day:2016-01-21
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