Fluid operated power cylinder has piston chamber and valve chamber integrated together in one-piece section of casing, and valve chamber with associated seat valve components forms seat valve

摘要

The fluid operated power cylinder (11) has a piston chamber to accommodate an axially moving piston, and a valve chamber (21a,21b) to accommodate seat valve components (22a,22b) for controlling of the piston. The piston chamber and valve chamber are integrated together in a one-piece section of the casing (12). The valve chamber together with the associated seat valve components forms a seat valve (23a,23b), and two valve seats pointing away from each other are formed on the inner wall of the valve chamber and between which runs out a working fluid through-passage provided with a working opening and connected to the piston chamber.