Shock absorber
US5873437A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 25, 1994 |
| Grant date | Feb 23, 1999 |
| Priority date | — |
| Expiry date | Apr 25, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2600/182
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shock absorbing system wherein arrangements are provided for altering the hysteresis effects of the fluid utilized so as to obtain desired damping curves. Particularly, by employing different hysteresis effects it is possible to obtain larger damping forces at the end of the piston stroke. The hysteresis effect can be altered by changing the effective area of the shock absorber piston by controlling the flow paths between the piston chambers and an accumulator chamber and the pressures necessary to open these flow paths. In addition, by employing selectively openable variable volume chambers and variable pressure accumulator chambers, further changes in the hysteresis effect can be accomplished.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.