Patent ID: 8220434

Claim:
An Internal-combustion engine, the crank mechanism of which comprising: a cylinder block, as a fixed part, that consists of cylinder banks and a crankcase; pistons with a piston pin, one per cylinder, as an initial segment of the crank mechanism, moving progressively due to thermal energy of combustion of fuel inside the cylinders; a crankshaft as a terminal segment of the crank mechanism, rotating in bearings in the crankcase of the cylinder block; guides and duplex guides that are rigidly secured to the lower plane of the cylinder banks of the cylinder block and are lined up face to face lengthwise the cylinder bank; connecting rods, each one coming with each corresponding piston, with the aid of which the progressive motion is converted to the rotation of the crankshaft; sliders, each one coming with each corresponding piston, that are piston-actuated, move in the corresponding guides and duplex guides coaxially with the said pistons, actuate the corresponding connecting rods and are assigned to take lateral force from the said connecting rods; auxiliary connecting rods (AC-rods), each one coming with each corresponding piston, to connect the said pistons with the corresponding sliders.