Piston

A piston for an internal combustion engine, comprising two pin bosses configured to receive a gudgeon pin, the two pin bosses respectively including a nadir pocket of at least two nadir pockets at α=180° and extending outward from a piston axis, the at least two nadir pockets having a respective length that is smaller than a length of a respective pin boss of the at least two pin bosses, the at least two nadir pockets having a depth from approximately 0.1 to 1.0 mm, the depth of the at least two nadir pockets decreasing along the piston axis in a direction extending away from a central axis, the central axis disposed between the two pin bosses and extending perpendicular to the piston axis, wherein a pin boss axis is axially offset from the piston axis by 0.1 to 1.0 mm, the pin boss axis and the piston axis extending perpendicular to the central axis.

A piston for an internal combustion engine, comprising two pin bosses configured to receive a gudgeon pin, the two pin bosses having at least one of a superimposed transverse ovality and a vertical ovality and respectively including a nadir pocket of at least two nadir pockets at α=180° and extending outward from a piston axis, the at least two nadir pockets extending over a circumferential angle of 30° to 130° and having a respective length that is smaller than a length of a respective pin boss of the at least two pin bosses, the at least two nadir pockets having a depth from approximately 0.1 to 1.0 mm, the depth of the at least two nadir pockets decreasing along the piston axis in a direction extending away from a central axis, the central axis disposed between the two pin bosses and extending perpendicular to the piston axis, wherein a pin boss axis is axially offset from the piston axis by 0.1 to 1.0 mm, the pin boss axis and the piston axis extending perpendicular to the central axis.