Air spring arrangement
US6056277A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 12, 1998 |
| Grant date | May 2, 2000 |
| Priority date | — |
| Expiry date | Mar 12, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2500/204
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention relates to an arrangement which includes an air spring (2), an ancillary volume (4) and a connecting line (6) which connects the air spring (2) and the ancillary volume (4) to each other. A valve (12), which is actuated by air pressure, is disposed in the connecting line (6). The valve (12) includes a cylinder (14) having a chamber (16) wherein a hollow piston (18) is mounted so as to be axially movable. In an open position of the hollow piston (18), the valve (12) clears the connecting line (6); whereas, the connecting line (6) is blocked in a closed position of the hollow piston (18). The invention also relates to a valve which is actuated by air pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.