Ks Kolbenschmidt Gmbh

Hartmut Kamp

Volker Gniesmer

Yuejun Huang

A piston with a piston boss in which a piston-pin bore is provided for accommodating a piston-pin. The piston-pin bore widens in the direction of a piston of a piston inner area with the widening above a bore axis with regard to a piston stroke axis, is less than the widening below the bore axis or vice versa.

Piston-pin bore dimensions for a piston of an internal combustion engine

The invention relates to a process for manufacturing a single-piece cooling channel piston, where a piston blank produced by forging is furnished with a circumferential ring-shaped recess between the piston skirts and the piston crown and with an open-bottomed cooling channel in the area of a piston ring belt, where to increase the surface guidance area of the piston skirts it is envisioned that a component extending this piston ring belt is welded on below the piston ring belt.

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Heilbronn, Germany

Hartmut Kamp