SEALING MEMBRANE FOR PIEZO ACTUATOR

A sealing member (34) adapted to be arranged inside a tubular sleeve (26) extending along a main axis (X) and in which is arranged a servo actuator (28), said sealing member (34) being a metallic pan-shaped resilient membrane with a centrally holed bottom wall (36) perpendicular to said main axis (X). Also, the sealing member (34) comprises a conical peripheral wall adapted to inwardly deform in order to be press fitted with interference inside the tubular sleeve (26), the bottom wall being non-planar and the peripheral wall and the bottom wall merging in a toroid rounded outer area.