Connecting rod lubrication apparatus

An internal combustion engine, comprising:

• a connecting rod extending along a central longitudinal axis between a first end and an opposite second end;
• a pin extending from the first end of the connecting rod to a piston, the pin defining a rotation axis transverse to the central longitudinal axis, wherein the pin includes a first surface portion facing in a first direction along the central longitudinal axis toward the first end of the connecting rod and an opposite second surface portion facing in a second direction along the central longitudinal axis toward the second end of the connecting rod;
• a crankshaft coupled to the second end of the connecting rod;
• a bushing housed in the first end of the connecting rod around the pin, wherein the bushing includes an inner surface around the pin, the inner surface defining a groove arrangement comprising:
• a first transverse groove portion extending along the rotation axis along the second surface portion of the pin on a first side of the central longitudinal axis when viewed in the direction of the rotation axis;
• a second transverse groove portion extending along the rotation axis along the second surface portion of the pin on a second side of the central longitudinal axis opposite the first side;
• and
• a circumferential groove portion extending along the first surface portion of the pin and that interconnects and is in fluid communication with the first transverse groove portion and the second transverse groove portion, the bushing further including a hole opening through the inner surface for delivering lubrication fluid to the inner surface, wherein the hole is offset from the central longitudinal axis and does not intersect the groove arrangement.