Independent suspension system for light and medium duty vehicles

摘要

The present invention relates to an improved vehicle suspension system. More particularly, the present invention relates to an independent suspension system for light and medium duty trailers which utilizes a flexible bladder mounted between the vehicle frame and the axle. The flexible bladder is housed within a casing to control the flow of air into the bladder and to provide for flexible movement of the axle relative to the vehicle frame. In the preferred embodiment, the flexible bladder is a traditional break-chamber housing and multiple break-chamber housings may be utilized to increase the load-carrying capacity of the trailer.