Calibrating device for dynamic volume flow meter for hydraulic media e.g. in fuel injection system, determines impelled volume from impeller piston stroke

摘要

An impeller unit has an impeller (3) which operates in or at a measuring chamber (1) which can be emptied via the test object and its volume flow meter (2), and cooperates with a sensor arrangement (11,12) to detect the impeller stroke. An evaluation device identifies the signals from the volume flow meter using a measure of the volume or volume flow determined from the stroke of the impeller.