Actuator module with a cladded piezo actuator

摘要

The actuator module (20) has a piezoactuator (21) that has a piezoelement enclosed by a case surrounded with elastomer layer. The actuator module also has a flexible hose (26) that shrinks under temperature influence. The flexible hose is fitted within the installation range of the actuator head (22) or actuator foot (23) of the piezoactuator. A press ring (27) is arranged on the flexible hose to seal the portion between the flexible hose and actuator head or actuator foot of the piezoactuator.