Patent ID: 7740256

Claim:
A compressible fluid independent active suspension comprising: a plurality of dual piston compressible fluid struts, each of said struts having an outer cylinder and an outer piston rod, said outer cylinder and said outer piston rod respectively defining exterior peripheries for an outer pressure chamber and an inner pressure chamber, wherein pressures applied to a compressible fluid disposed in respective ones of said outer pressure chambers and said inner pressure chambers urge respective ones of said outer pistons to extend from within respective ones of said outer cylinders; a control system for actively controlling a mass of compressible fluid disposed within each of said outer pressure chambers and said inner pressure chambers of said struts; a plurality flow lines connecting between said control system and respective ones of said outer pressure chambers and said inner pressure chambers; wherein said control system selectively controls said mass of compressible fluid within said plurality of dual piston compressible fluid struts, such that said plurality of dual piston compressible fluid struts provide spring function, shock absorber function and active control for said compressible fluid independent active suspension system; and wherein each of respective ones of said inner pressure chambers and said outer pressure chambers of respective ones of said struts is sealed from being in fluid communication.