摘要 |
The invention relates to a fluid injection device (131) having a main injection axis (AB) and including at least: a housing (1); an actuator (2) axially mounted in the housing (1) and comprising a stack with two axially opposed front faces (C, D) and including at least one electro-active portion (22) with an electro-active material; and a pre-stressing means adapted for at least partially pre-stressing said stack. According to the invention, the pre-stressing means includes at least a tightening clamp (25) outside the stack and provided between the stack and the housing (1).
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