Light metal cylinder head for internal combustion engines

Claim 1

A light metal cylinder head arrangement for internal combustion engines, comprising in combination: a cylinder head having a bottom portion directed toward an associated combustion chamber; and defining an axially extending, radially inwardly recessed, circular shoulder; a cylinder barrel; an annular insert of a ferrous metal interposed as well as geometrically adapted in a location directly between said cylinder head and said cylinder barrel said annular insert having an axially extending radial surface in direct engagement with the circular shoulder; and a ferrous metal metal plate arranged on said cylinder head bottom, said annular insert adjoining the outer periphery of said metal plate; whereby without any fastening function of said metal plate and said annular insert and as a result of different heat stresses arising during combustion operation, forces are created which cause said metal plate to expand freely and to engage said cylinder head bottom as the metal plate distorts, due to combustion heat effecting deformation especially in a middle region thereof, easily toward said cylinder head so that said metal plate with increasing combustion-heat-caused expansion of the cylinder head due to combustion heat is pressed more strongly against said cylinder head bottom to assure sealing against leakage between said cylinder head and said cylinder barrel.