Patent ID: 6513820
Filing Date: 2003-02-04
Classification: B60G

Abstract:
Air spring system for a vehicle having a front axle for front vehicle wheels and a rear axle for rear vehicle wheels, comprising:front wheel air springs for each of the front vehicle wheels, rear wheel air springs for each of the rear vehicle wheels, a compressed air source, and an air control system operable to selectively supply compressed air to said front wheel and rear wheel air springs to raise the vehicle and to selectively exhaust compressed air from said front wheel and rear wheel air springs to lower the vehicle, said air control system including: a front air line branch communicating solely with the front wheel air springs, and a rear air line branch communicating solely with the rear wheel air springs, wherein one of said front and rear air line branches is configured to have a different flow cross section for air supplied from the compressed air source to wheel springs associated with the one of the front and rear air line branches than for air exhausted from the associated wheel air springs.