Adjustable shock absorber assembly
US5152379A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1990 |
| Grant date | Oct 6, 1992 |
| Priority date | — |
| Expiry date | Apr 16, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2600/26
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shock absorber comprises a piston and piston rod assembly mounted for reciprocation in a cylinder, the piston dividing the cylinder into upper and lower chambers, a floating disk valve slidably disposed in a fluid reserve chamber of the piston for movement between first and second positions to selectively open and close fluid passages associated with the assembly to vary the resistance to damping fluid moving through the assembly and between the chambers, and a solenoid-plunger for regulating the flow of damping fluid between the chambers. The disk valve movement is controlled by the solenoid-plunger and when the disk is in a first position augments flow between the upper and lower chambers to provide "soft" compression and rebound strokes and when the disk is in a second position restricts flow between the upper and lower chambers to provide "firm" compression and rebound strokes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.