Pneumatic suspension system
US6637732B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2001 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Oct 16, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/0454
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pneumatic suspension system comprising: a pneumatic suspension bellows made of an elastomeric material which encloses an air chamber whose volume varies, with an embedded strengthening support; a pressure reservoir having an outer diameter on which one end of the pneumatic suspension bellows is fastened by a clamping ring; and a pneumatic suspension piston having an outer diameter on which the other end of the pneumatic suspension bellows is also fastened by a clamping ring, and having a roll-off piston on whose outer wall the pneumatic suspension bellows can roll off while forming a first rolling fold. The pressure reservoir has a contoured roll-off surface outside of the first fastening area. The roll-off surface is provided for a second rolling fold which rests against the roll-off surface and can roll off in a limited manner compared to the first rolling fold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.