Invention Grant
- Patent Title: Vehicle air suspension installation and operating method
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Application No.: US13991788Application Date: 2011-11-22
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Publication No.: US09834053B2Publication Date: 2017-12-05
- Inventor: Dieter Frank , Jorg Meier , Frank Meissner
- Applicant: Dieter Frank , Jorg Meier , Frank Meissner
- Applicant Address: DE Hannover
- Assignee: WABCO GMBH
- Current Assignee: WABCO GMBH
- Current Assignee Address: DE Hannover
- Agency: Leydig, Voit & Mayer, Ltd.
- Priority: DE102010054703 20101216
- International Application: PCT/EP2011/005861 WO 20111122
- International Announcement: WO2012/079686 WO 20120621
- Main IPC: B60G11/27
- IPC: B60G11/27 ; B60G17/015 ; B60G17/018 ; B60G17/052

Abstract:
A vehicle air suspension installation includes pneumatics configured for operation in conjunction with a compressed air supply installation, and comprises: a pneumatic line having a port connection to the air supply installation, air bellows, each serving as a pressure chamber for an air spring, one air bellows being connected to the pneumatic line via a directional solenoid valve, and the air bellows being fillable/bleedable depending on a switching state of the valve, and first and second directional valves forming a solenoid valve system, which has a pneumatic part that is actuatable by a magnetic part. The first directional valve forms a primary valve, and the second forms a secondary valve. First and second air bellows associated with the valve system are fillable/bleedable depending on the switching state of the primary and secondary valves. The primary and secondary valves are controllable by a controller of the magnetic part. The controller is common to and acts upon both valves.
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