Abstract: A pneumatic cylinder designed to convert compressed air into mechanical output is disclosed. The pneumatic cylinder includes a piston and rod assembly with supporting components coaxially disposed and arranged to achieve a linear mechanical force in accordance with a differential pressure across the piston. A cylindrical sleeve, secured to end caps on both openings, encircles the piston and rod assembly and helps guide the piston during travel. Additionally, a manifold, which serves as a conduit for airflow between each individual cylinder volume and an external air control device, is disposed such that the cylindrical sleeve and end caps are nested, in a concentric manner, within the manifold. This arrangement results in a dynamic relationship between airflow and differential pressure that is conducive to precision force and motion control.

Abstract: A pneumatic cylinder designed to convert compressed air into mechanical output is disclosed. A piston assembly, sealed at both end by caps, contains and guides the motion of a piston assembly. Pressure forces on the piston assembly are transmitted via a mechanical structure that distends via a slot that runs the length of the piston assembly. A flexible steel band, which passes through the piston assembly, seals the slot to minimize air leakage. An air control device, such as a servo valve, is operatively coupled to the piston assembly and travels with the piston assembly when a differential pressure is produced on the piston assembly. This arrangement results in a dynamic relationship between airflow and differential pressure that is conducive to precision force and motion control. In addition, the end caps may include snubbers to diffuse sound waves associated with air moving in the piston assembly of the pneumatic cylinder.