CRANKSHAFT FOR INTERNAL COMBUSTION ENGINE Russian patent published in 2004 - IPC

FIELD: mechanical engineering.

SUBSTANCE: crankshaft has crank pins 2, main journal 1 and webs 3 which go from crank pin to main journal and interconnect them. The spherical surface is conjugated with main journal 1 over the radius with two planes whose intersection is in the plane of the crankpin at axis 7 of the crank pin 2, and their angle of inclination is determined form the formula α=90^o-arctg(R_cr-R_cp)/(B/2), where R_cr is the radius of the crank of the crankshaft, R_cp is the radius of the crankpin, and B is the width of the web.

EFFECT: strengthened crankshaft.

2 cl, 1 tbl