Patent ID: 8857291

Claim:
A flywheel ( 10 ) for mounting as a coupling element between an internal combustion engine ( 110 ) and a driven machine ( 120 ), said flywheel comprising: a flywheel flange ( 1 ) for connecting the flywheel to the machine to be driven, a driver flange ( 2 ) for connecting the flywheel ( 10 ) to the internal combustion engine, and coupling means ( 31 ) including connecting bolts ( 21 ) for coupling the flywheel flange ( 1 ) and the driver flange ( 2 ), the connecting bolts ( 21 ) being threaded into the driver flange ( 2 ) and provided with separate electrical insulating members ( 24 ) disposed between respective bolt head engagement surfaces of the connecting bolts ( 21 ) and the flywheel flange ( 1 ), the bolts ( 21 ) extending through openings in the flywheel flange ( 1 ) with insulating gaps ( 28 ) maintained between the walls of openings in the flywheel flange ( 1 ) and the connecting bolts ( 21 ), for electrically insulating the flywheel flange ( 1 ) with respect to the driver flange ( 2 ).