Vorrichtung zum Spannen und Verstellen eines als Kette ausgebildeten Umschlingungstriebs

摘要

The clamping and setting device (1) acts on the contact transmission chain (2) driving the first and second camshafts (3,3') of an internal combustion engine. The spacing between its loaded and unloaded sectors (4,5) is altered by moving outer and inner hydraulic pistons (8,9) relative to each other. The first piston is moved in a fixed casing (6). There is an oil storage cavity (10) between the first and second pistons, with a compression cavity (12) under it. The cavities are separated by a no-return valve (11).