ADJUSTING DEVICE FOR VARIABLE GUIDE VANES AND METHOD OF OPERATION

摘要

The invention relates to a device, system, or method to position variable guide vanes disproportionate. An adjusting device for guide vanes of an axial-flow machine, comprises a plurality of rotatably mounted rings of variable guide vanes (10, 11), a plurality of levers (50; lever1, Iever2, Iever3) which are arranged on the outer sides of a guide vane carrier (30) for rotating the variable guide vanes (10, 11), a plurality of adjusting rings (40, 41, 42, 43), each of the adjustment rings (40, 41, 42, 43) is arranged coaxially to the guide vane carrier (30) and to which a first end (51) of one of the levers (50) is connected, and an adjusting drive with which the adjusting rings (40, 41, 42, 43) can be moved in its peripheral direction. At least one of the levers (lever1) is set up to perform at least partly a disproportionate longitudinal movement of the first end (51) of the at least one lever (lever1).