Gas-filled spring for a vehicle, such as a motor cycle, and valve for such a gas-filled spring
US7309063B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 2003 |
| Grant date | Dec 18, 2007 |
| Priority date | — |
| Expiry date | Nov 21, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/526
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gas-filled spring (1) operates using gas (13, 14) and may be intended for a motor cycle. The gas-filled spring comprises a cylinder (2) and a piston (4), said cylinder comprising a compression chamber and a return chamber (8, 9). An arrangement maintains the necessary quantities of gas and gas pressure settings or differential pressures in the chambers despite any gas leakage and temperature variations occurring. Arranged between the chambers is a passage (12), which is open only in a predetermined position of the cylinder and the piston relative to one another. In the open position gas transfer between the chambers and/or pressure equalization in or differential pressure adjustment of the gas pressures in the chambers are permitted. The invention also relates to a valve for counteracting rapid changes in leakage and temperature. The desired spring characteristic of the gas-filled spring can in this way be maintained despite leakage and temperature variations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.