Patent ID: 8146560

Claim:
A multi-part piston for an internal combustion engine, comprising: an upper piston part comprising a piston crown, a first inner support element, and a first outer support element, and a lower piston part, a lower piston part comprising a second inner support element, a second outer support element, pin boss supports and pin bosses connected with said pin boss supports, wherein said first and second inner support elements and first and second outer support elements delimit an outer circumferential cooling channel, wherein said first and second inner support elements delimit a cavity that is open toward the pin bosses, and wherein said cavity is provided with a separate cooling oil collector, said separate cooling oil collector having at least one cooling opening wherein a holder element extends vertically in the cavity in a direction of the lower piston part, from an underside of the piston crown, wherein the cooling oil collector is supported against the holder element in an axial direction, with at least one of a force fit and a shape fit, wherein an end of the holder element that projects into the cavity has a circumferential contact shoulder that surrounds a projection, said shoulder resting on the cooling oil collector, and wherein the projection engages into a bore provided in the cooling oil collector.