This automotive component integrates pneumatic suspension technology with traditional helical springs. It offers a variable rate suspension system, where the contained air bladder provides load support and cushioning, working in conjunction with the metal coil to maintain ride height and absorb impacts. An example application is in light-duty trucks and SUVs where enhanced load-carrying capacity and ride comfort are desired.
The integration of these two technologies yields several advantages. The air bladder enables adjustable spring rates, allowing for customized ride characteristics based on load and driving conditions. This system improves vehicle stability and reduces body roll, while also providing a smoother ride, especially when carrying heavy loads. Historically, such systems represent an evolution in suspension design, aimed at optimizing both comfort and utility.