Invention Grant
- Patent Title: Air spring for controlling the level position of a driver's cabin or a motor vehicle
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Application No.: US16421773Application Date: 2019-05-24
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Publication No.: US11059341B2Publication Date: 2021-07-13
- Inventor: Michael Weber
- 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: Fishman Stewart PLLC
- Priority: DE102018112627.1 20180525
- Main IPC: B60G17/052
- IPC: B60G17/052 ; B60G11/58 ; B60G15/06 ; B60G15/12 ; B62D33/06 ; B62D33/063 ; F16F13/00 ; F16F9/04 ; B60G17/08 ; B60G17/048

Abstract:
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.
Information query