Bleistahl Produktions-gmbh & Co. Kg

Anna Seyfarth

Ekkehard Kohler

Dirk Emde

Thomas Lelgermann

Christian Blecking

Ingwar Hunsche

Robert Hammelmann

Thomas Lelgemann

Ekkehard KÖHLER

The invention relates to a highly heat conductive valve seat ring () comprising a carrier layer () and a functional layer (), wherein the carrier layer () consists of a solidified copper matrix containing 0.10 to 20% w/w of a solidifying component and the functional layer () consists of a solidified copper matrix which further contains, based on the copper matrix, 5 to 35% w/w of one or more hard phases.

Valve seat ring

The invention relates to a powdermetallurgically produced valve seat ring having a carrier layer and a function layer. It is the objective of the invention to provide a valve seat ring of the kind mentioned above that offers significantly higher thermal conductivity properties. To achieve this objective and based on a valve seat ring of the kind first mentioned above the invention proposes that the carrier material of the carrier layer has a thermal conductivity higher than 55 W/m*K at a total copper content ranging between &#x3e;25 and 40% w/w.

Highly thermally conductive valve seat ring

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Dortmund, Germany

Anna Seyfarth