Pneumatic connections for vehicle suspensions
US6637555B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2001 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Mar 2, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2230/183
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention provides a damper assembly (10) comprising a housing (12) defining an inner chamber (22, 24) having a damping fluid disposed therein. A piston rod (14) is slidably retained by the housing (12), and at least partially extends into, the chamber (22, 24). A piston (18) is disposed at a first distal end (21) of the piston rod (14) and strokes inside the housing (12). The piston (18) defines a first chamber (22) and a second chamber (24) within the housing (12) and includes at least one aperture (26) for allowing damping fluid to flow between the first (22) and second (24) chambers. An actuator (30) is disposed within the piston (18) for varying the flow of damping fluid through the aperture (26) between the first (22) and second (24) chambers within the housing (12). The piston rod (14) includes an inner bore (16) that receives pressurized air from an external source for communicating pneumatic control signals to the actuator (30).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.