Air suspension system
US4518171A · kind A · utility
Inventor
Key dates
| Filing date | Oct 14, 1983 |
| Grant date | May 21, 1985 |
| Priority date | — |
| Expiry date | Oct 14, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G17/052
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An air suspension system for each rear wheel of van-type vehicles features a seven-point articulated system. A pair of rearwardly diverging torque rods are pivotally attached to the axle hanger to provide a modified parallelogram linkage. The angle of divergence is set by an adjustable torque rod pivot point and an automatic pneumatic height restoration feature to dispose the torque rods at optimum orientation to provide, among other things, a measure of anti-rise action on braking. A pair of air springs mounted on articulated carrier arms carries the weight of the vehicle without the use of assisting springs. Anti-sway is provided by specification of elastic rates of bushings in pivots providing the articulation of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.