MASS COMPENSATOR FOR AN INTERNAL COMBUSTION PISTON ENGINE.

摘要

PCT No. PCT/EP91/01013 Sec. 371 Date Mar. 31, 1992 Sec. 102(e) Date Mar. 31, 1992 PCT Filed May 31, 1991 PCT Pub. No. WO92/02720 PCT Pub. Date Feb. 20, 1992.The invention relates to a mass compensator for an internal combustion piston engine with three banks of four cylinders and a crankshaft with four crank pins on each of which operates one connecting rod of each bank of cylinders, whereby to compensate the especially second-order mass forces and moments, compensating shafts bearing balance weights are fitted which are driven in opposite directions at twice the crankshaft speed and whose axis of rotation co-ordinates to the crankshaft axis substantially meet the conditions below: y2=-2y1 and x2==2x1.