Servomotor for automobile power-assisted steering has working piston fitted with cover held under tension for compensating manufacturing tolerances

摘要

The servomotor has a servo cylinder with 2 working chambers separated via a working piston (13) having a base body (26) at least partially fitted with a U-shaped cover (28), with a seal (29) between the base body and the cover maintaining the latter under tension, for compensating manufacturing tolerances.