Abstract: A central valve of a camshaft adjuster of an internal combustion engine, which has a valve housing, a control piston and a fastening flange. The valve housing is at least partially arranged within a receptacle within the camshaft adjuster and has hydraulic connections. The control piston bears at least in regions against an inner circumferential surface of the valve housing and is mounted displaceably on the inner circumferential surface. The fastening flange is fixedly connected to a wall of the receptacle and defines the axial position of the valve housing relative to the camshaft adjuster.

Abstract: A central valve of a camshaft adjuster of an internal combustion engine, which has a valve housing, a control piston and a fastening flange. The valve housing is at least partially arranged within a receptacle within the camshaft adjuster and has hydraulic connections. The control piston bears at least in regions against an inner circumferential surface of the valve housing and is mounted displaceably on the inner circumferential surface. The fastening flange is fixedly connected to a wall of the receptacle and defines the axial position of the valve housing relative to the camshaft adjuster.

Abstract: The invention relates to a field liner for protecting a timber pole against subsoil decay. The field liner includes a sleeve, that can be loosely located on a pole for covering the region of the pole to be protected, and a covering sheet that is secured to and extends from the sleeve in a configuration in which, with the sleeve located on a pole, the covering sheet can be tightly drawn and held around the sleeve for holding the sleeve tightly against the pole. The sleeve includes at least a flexible, liquid impermeable, non-biodegradable, synthetic plastics film material layer, whereas the covering sheet is formed of a flexible, non-biodegradable, woven synthetic plastics sheet material.