Patent ID: 11971055
Assignee: FESTO SE &CO. KG
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A fluid-actuated working cylinder, having a cylinder housing and a piston, which piston is displaceablv by fluid action and is arranged in a cylinder chamber enclosed by the cylinder housing, the cylinder housing having a cylinder tube whose inner circumferential surface forms a piston running surface against which the piston bears in a slidingly displaceable manner, wherein the cylinder tube is formed as a composite body with a tubular inner layer forming the piston running surface and a tubular support jacket enclosing the tubular inner layer with a radial supporting effect, wherein the tubular inner layer consists of a diffusion-tight glass material or of a diffusion-tight ceramic material and wherein the support jacket has a cellulose-containing and/or lignin-containing material structure, and
wherein a layer thickness of the tubular inner layer is in a thickness range of 0.001 mm to 0.1 mm, in each case including the range limits.