Patent ID: 6889650

Claim:
Internal-combustion engine having four cylinders in a V-arrangement, having a crankshaft and having a first balancing shaft for reducing the free inertial forces of the second order which is arranged below and parallel to the crankshaft, wherein a second balancing shaft is provided in a point of intersection of the cylinder Vs above the crankshaft, wherein the rotation center points of the first balancing shaft, of the second balancing shaft and of the crankshaft are situated on a perpendicular axis of symmetry which extends through the point of intersection, wherein the second balancing shaft is arranged in a main lubricant duct for supplying main bearings of the crankshaft and spraying nozzles for the piston cooling with lubricant, wherein the second balancing shaft has a lubricant feeding device, a guiding duct, outlet openings and eccentric weights, and wherein the second balancing shaft has partial milled-out sections on the circumference, and a tube is arranged as a guiding duct in the interior.