Combustion chamber inlay for use in cylinder head of engine of lorry, has inlet opening in which inlet valve is arranged, and metallic material provided with specific heat conductivity, where metallic material includes elastic modulus

摘要

The inlay (1) has an inlet opening (3) in which an inlet valve is arranged, and a discharge opening (4) in which an outlet valve is arranged. A set of valve seat rings is powder-metallurgically produced from cobalt molybdenum steel or high-speed steel. The steel and/or metallic material is provided with a heat conductivity of 10 to 50 watts per Kelvin m, where the inlay is infiltrated with copper or aluminum. The metallic material includes elastic modulus having heat conductivity of more than 100 kilonewtons/square millimeter.