Adaptive shock damping control
US6926128B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2003 |
| Grant date | Aug 9, 2005 |
| Priority date | — |
| Expiry date | Jun 10, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/50
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shock absorber damper assembly is provided that includes a working cylinder filled with fluid. A piston and rod are disposed in the working cylinder and move along an axis to provide dampening during a compression stroke. For a twin tube arrangement, a reservoir surrounds the working cylinder and may include a gas cell to accommodate the volume of the rod. A recoil valve controls flow of the fluid from the working cylinder to the reservoir during a recoil stroke. The recoil valve has an opening force controlling damping during the recoil stroke. A fluid passageway, which may be located in the reservoir, connects the working cylinder and the recoil valve. A check valve is disposed in the fluid passageway and opens to receive the fluid during the compression stroke. The check valve closes during the recoil stroke to retain the fluid against the recoil valve at a pressure and adjust the opening force of the recoil valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.