Patent ID: 8267005
Filing Date: 2012-09-18
Classification: B23P,F02F

Abstract:
1. A multi-part piston for an internal combustion engine, comprising: an upper piston part having a piston crown, a first inner support element, and a first outer support element; and a lower piston part having a piston skirt, 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, wherein said cavity is provided with a separate cooling oil collector, said separate cooling oil collector having at least one cooling opening, and wherein the cooling oil collector has an at least partially circumferential spring-elastic flange.