Patent ID: 6708663
Filing Date: 2004-03-23
Classification: F16F

Abstract:
A device for compensating the inertia forces in reciprocating piston machines, consisting of a balance shaft housing and of a pair of balance shafts (6, 7) mounted in the latter in friction bearings and having compensating weights (8), the balance shaft housing (5) being fastened in one part and directly or indirectly to the engine block, and the balance shafts being driven from the crankshaft mounted in its main bearings (3), whereina) the friction bearings (30) of the balance shafts (6, 7) are arranged, together with the main bearings (3) of the crankshaft (2), in a plane (9) perpendicular to the crankshaft axis, b) the friction bearings (30) are cylindrical bores in the balance shaft housing (5) which are machined as bearing surfaces (31), c) the balance shafts (6, 7) are cylindrical shafts of essentially constant diameter, on which the compensating weights (8) are fastened individually.