Patent ID: 9416750
Filing Date: 2016-08-16
CPC Classification: F02B,F02F,Y02T

Claim Text:
1. A piston for an internal combustion engine, comprising: a one-piece piston base body comprising: a piston crown, a circumferential top land, a combustion bowl having a bowl base and a bowl wall, a ring belt, and an insert formed from a ring-shaped component, which is held in the piston base body by means of an undercut by force fit and shape fit, wherein the component has a face surface and an outer surface on the top land side and an inner surface on the bowl side, said inner surface running out flush and continuously with the bowl wall or the bowl base, said inner surface on the bowl side and said outer surface on the top land side forming a circumferential edge that tapers to a point that rests on a surface of the piston bowl wall or bowl base, wherein said face surface and said outer surface on the top land side run out continuously radially outward toward the piston crown, the face surface and outer surface forming a circumferential edge that tapers to a point, and wherein the face surface is disposed flush with the piston crown, and wherein there is a circumferential cooling channel formed in the piston base body, said circumferential cooling channel being disposed completely below the insert.