VALVE FLAP DEVICE FOR A BYPASS VALVE OF A TURBOCHARGER, AND TURBOCHARGER

The invention relates to a valve flap device (50) for opening and closing a bypass valve (29/39) of a turbocharger (1) and to a turbocharger (1). The valve flap device (50) has a valve spindle (51), aflap support (52) which is arranged on the valve spindle (51) and which comprises a passage recess (53) that has a central axis (53a), a circular ring-shaped cover disc (57) which has an outer circumference and which is arranged on a support upper face (52a), and a valve flap (54) which is arranged on the support lower face (52b) on the flap support (53) and which comprises a flap support pin (56) that is arranged on the flap plate rear face (54a), is guided through the passage recess (53) of the flap support (52), and is rigidly connected to the cover disc (57). A spring gap (58) is providedbetween a support upper face (52a) and the cover disc (57), wherein a spring element (60) is assembled in the spring gap in a biased manner, said spring element protruding beyond the outer diameter of the cover disc (57) at l