Hydropneumatic vehicle suspension strut
US5127634A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Sep 14, 1989 |
| Grant date | Jul 7, 1992 |
| Priority date | — |
| Expiry date | Sep 14, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2202/154
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydropneumatic suspension strut adapted to be connected between the chassis and a wheel of an automotive vehicle. The strut has a piston with a rod having an axial passage connected to a hydropneumatic accumulator, and slides in a cylinder. A hydraulic stop arrests the movement of the piston at the end of its inward or driving stroke. The hydraulic driving stop includes, fixed to the end of the cylinder, a pin for entering an axial opening in a moving valve contained in an interior recess of the piston in such a manner that there is progressive restriction of the flow of hydraulic fluid through the valve, to cushion and stop the piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.