Connection rod for internal combustion engine

An internal combustion engine connecting member comprising:

• a connecting member main body having a first end with a first pin hole and a second end with a first large end part forming a first portion of a second pin hole;
• a cap to be arranged on the second end of the connecting member main body with a second large end part forming a second portion of the second pin hole such that the second pin hole lies between the connecting member main body and the cap, and
• a bolt serving to fasten the connecting member main body and the cap together, the bolt being constructed with
• a bolt strength safety factor based on an axial strength limit load of the bolt and a maximum load that will be born by the bolt due to an inertia force acting on the connecting member;
• a mating surface separation safety factor based on a tensile load resulting from the inertia force and a maximum bolt load carried by the bolt at a mating surface separation limit in which the connecting member main body and the cap remain in contact without separating;
• and
• the mating surface separation safety factor that is equal to or larger than the bolt strength safety factor.

An internal combustion engine connecting member comprising:

• main body connecting means for a first pin hole at a first end and for forming a first portion of a second pin hole at a second end;
• cap means for forming a second portion of the second pin hole to be arranged on the second end of the main body connecting means, and
• bolt means for fastening the main body connecting means and the cap means, the bolt means being constructed with
• a bolt strength safety factor based on an axial strength limit load of the bolt means and a maximum load that will be born by the bolt means due to an inertia force acting on the connecting member;
• a mating surface separation safety factor based on a tensile load resulting from the inertia force and a maximum bolt load carried by the bolt means at a mating surface separation limit in which the main body connecting means and the cap means remain in contact without separating;
• and
• the mating surface separation safety factor that is equal to or larger than the bolt strength safety factor.