Ks Kolbenschmidt Gmbh

Ingo Roth

Gerhard Luz

Eberhard Weiss

Emmerich Ottliczky

A steel piston () for a combustion engine, having an upper part in which a ring section () with at least one ring groove () is arranged, wherein the upper part is adjoined by a lower part that has two opposing skirt wall sections (), wherein the two skirt wall sections () are connected via two mutually opposite case walls (), wherein a pin bore () surrounded by a piston boss () is provided in each case wall (). In one example, there is at least one aperture () or at least one recess in the case wall () in the region between the piston boss () and the skirt wall section ().

Steel piston with optimized design

A piston for an internal combustion engine includes a piston upper part and a piston lower part having a cooling channel including at least one inlet opening. A dam-type elevation is formed in the region of the at least one inlet opening through forging of the dam elevation in the cooling channel portion in the piston lower part. In one example, a funnel-shaped inlet contour is formed in the inlet opening by pre-forging. In one example, a V-shaped element is formed in the piston upper part cooling chamber portion in alignment with the inlet opening and used as a coolant jet splitter.

Growing community of inventors

Pfedelbach, Germany

Ingo Roth