Engine water jacket formed from a uniitary billet and method for manufacture thereof

Abstract

An internal combustion engine block includes a cylinder block formed of a billet and defining at least one cylinder bore that terminate at a block deck surface, with a majority of the outer circumference of the at least one cylinder bore being surrounded by a cylinder wall. A water jacket channel is defined within the cylinder block at an upper end of the plurality of cylinder bores adjacent to the block deck surface. The water jacket channel is positioned external to the cylinder wall and surrounding a majority of an outer circumference of the at least one cylinder bore. A plurality of bridges span a width of the water jacket channel to connect to the cylinder wall and the cylinder block at the block deck surface. The engine block is formed by machining the billet with a computer numerical control machine with one to five axes or by additive manufacturing.

Dependencies are inferred from the claim text.