Air spring for a motor vehicle

US10508704B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Thomas Nowotka · Haßfurt, DE
• Alfred Memmel · Schonungen, DE
• Georg Memmel · Hamm (Sieg), DE

Key dates

• Filing date: Aug 1, 2016
• Grant date: Dec 17, 2019
• Expiry date: Aug 1, 2036

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F2232/06
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An air spring for a motor vehicle having a rolling bellows filled with gas under pressure, one end of the rolling bellows is connected to a load receiver and the other end is fastened to a roll-off piston′. The load receiver and the roll-off piston are moveable relative to one another depending on a force impinging on the load receiver toward the roll-off piston. A sensor device is arranged inside the rolling bellows by which a distance between the load receiver and the roll-off piston is detected. A pressure piece extending in direction of the roll-off piston is arranged at the load receiver and a sensor body is movably drivable along a sensor track of the sensor device by an end region of the pressure piece facing the roll-off piston. The sensor device generates an electric signal corresponding to the position of the sensor body on the sensor track.