Hydraulic shock absorber
US8556048B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2008 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Dec 7, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2202/24
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A piston connected with a piston rod is fitted in a cylinder having a hydraulic fluid sealed therein. A damping force is generated through extension and compression disk valves and an orifice. Vehicle height adjustment is performed with a self-leveling mechanism by transferring the hydraulic fluid between the cylinder and a hydraulic fluid tank. A bladder of the hydraulic fluid tank is clamped between an outer flange portion of a partition member and a casing. Because the hydraulic fluid tank is formed without welding, it is possible to avoid contamination of the hydraulic fluid by welding sputter and thermal deformation. Provision of an O-ring on the outer flange portion can reduce the pressure acting from a reservoir on the clamped portion of the bladder and hence prevent dislodging of the bladder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.