Patent ID: 9182008
Filing Date: 2015-11-10
Classification: F04D,F16F,G01M

Abstract:
1. An apparatus comprising a rotary body ( 10 ; 21 ; 22 ) having an axis of rotation (R), a balancing mass ( 311 ) which is rotatable about the axis of rotation (R), and an adjusting device ( 30 , 310 ) for displacing the balancing mass along a direction parallel to the axis of rotation (R), wherein the rotary body ( 10 ; 21 ; 22 ) includes a central hub ( 11 ) with an axial portion ( 13 ), wherein the adjusting device ( 30 , 310 ) includes a guide ( 313 ) that forms part of the axial portion ( 13 ) and extends parallel to the axis of rotation, and wherein when the balancing mass ( 311 ) is in an installed state on the apparatus, the balancing mass ( 311 ) remains disposed at all times within the guide ( 313 ) so as to move only along the direction parallel to the axis of rotation within the guide ( 313 ).