Monoblock cylinder head
AssigneeToyota Jidosha Kabushiki Kaisha
InventorAkira Tominaga
Life of this patent
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Abstract
In a monoblock cylinder head for an engine, in which a cylinder upper end portion and a cylinder head ceiling portion are formed integrally with each other, an annular groove portion, having such a radius of curvature as to be capable of supporting load generated by combustion in a combustion chamber within a cylinder, is circumferentially provided in an inner circumferential surface of a joining portion of an upper end portion of a cylinder wall portion to the cylinder head ceiling portion, and an engagement member, having an inner circumferential surface portion capable of forming substantially the same plane as a cylinder interior surface, is engaged with this annular groove portion.
Claims4
A monoblock cylinder head for an engine, in which a cylinder upper end portion and a cylinder head ceiling portion are formed integrally with each other, the monoblock cylinder head comprising:
- an annular groove portion that is circumferentially provided in an inner circumferential surface of a joining portion of an upper end portion of a cylinder wall portion to the cylinder head ceiling portion, and that has such a radius of curvature as to be capable of supporting load generated by combustion in a combustion chamber within the cylinder;
- and
- an engagement member that is engaged with the annular groove portion and that has an inner circumferential surface portion capable of forming substantially the same plane as a cylinder interior surface.
Dependencies are inferred from the claim text.