FUEL INJECTION VALVE
The invention relates to a fuel injection valve (1) for injection devices, in particular for internal combustion engines of motor vehicles, for injecting fuel in a fuel chamber of an internal combustion engine, comprising a piezoceramic multilayer actor (2), a valve needle (3) that is actuatable by the multilayer actor (2), said valve needle acting jointly with a valve closing body (4) which forms a sealing seat (6) with a valve seat member. According to the invention, the multilayer actor (2) has a number of layers (7) made of piezoceramic material. The thickness of the piezoceramic layers (7) ranges between 120 ?m and 500 ?m.