Hydraulic compensation unit for compensating for linear differences e.g. for piezo actuators of fuel injectors comprises an outer plate fixed within a housing to delimit hydraulic chambers with inner plates guided within the housing

摘要

Hydraulic compensation unit comprises an outer plate (26) fixed within a housing (10) to delimit hydraulic chambers (30, 32, 34) with inner plates (20, 21, 23) guided within the housing. The hydraulic chambers can be filled with hydraulic fluid (2) and emptied by relative movement of the inner plates and outer plate. Preferred Features: One inner plate (20) has a protrusion which slides opposite the outer plate. A spring plate is fixed to the protrusion.