| abstract |
The invention relates to a hydraulic stroke transmitter, particularly a stroke translator or an injector, comprising a solid-state actuator (4) for generating a stroke, a hydraulic system (18) for the hydraulic transmission of the stroke of the solid-state actuator, particularly to a control element such as a jet needle of a valve, wherein the hydraulic system (18) has hydraulic volumes (11, 12, 13) which is hermetically sealed to the outside by metal bellows and constitute a hydraulic bearing with compensation for play. The advantages over conventional hydraulic levers are such that a complete metal seal is provided, and that a low-wear design can be realized. Furthermore, a modular structure can be produced. |