Patent ID: 6823712
Filing Date: 2004-11-30
Classification: F02M

Abstract:
An apparatus for the automatic setting of injectors, each injector having a piezoelectric actuator, a straight-through valve, a lever element coupled to the straight-through valve and a setting element coupled to the piezoelectric actuator, by way of which a physical position of the piezoelectric actuator can be adjusted relative to the lever element, the apparatus comprising:a measurement and setting station; a handling apparatus being constructed in such a way that an injector can be brought into a predetermined physical position relative to the measurement and setting station; a high-pressure connection being formed in such a way that the injector brought into the predetermined physical position can be coupled to a pressure generating device; an electrical connecting device being formed in such a way that the actuator of the injector brought into the predetermined physical position can be coupled to a signal generating device; a screwing device being formed in such a way that a setting element of the injector brought into the predetermined physical position can be adjusted automatically; a torque measuring apparatus whereby torque acting on the setting element can be registered during an adjustment of the setting element; an angle measuring apparatus whereby the angular position of the setting element can be registered; and a pressure measuring apparatus whereby the pressure applied to the injector can be registered.