Patent ID: 6367444
Filing Date: 2002-04-09
Classification: F02B,F02F,Y02T

Abstract:
A cylinder head for a direct injected internal combustion engine, said cylinder head having a sealing surface that is adapted to be held in sealing engagement with an associated cylinder block, said cylinder head defining with a cylinder bore in the cylinder block a combustion chamber, a combustion chamber portion of said cylinder head sealing surface overlying the cylinder bore and defines at least a pair of valve seats on the same side of a first plane that extends through the axis of said cylinder bore, a pair of flow passages formed in said cylinder head each extending from a respective opening in a common outer side surface of said cylinder head to respective of said valve seats, and a fuel injector receiving opening formed in one side of said cylinder head and opening through said common outer side surface and terminating in a discharge nozzle opening that communicates with the cylinder head combustion chamber portion of said cylinder head sealing surface, said fuel injector receiving opening having its center lying on a second plane that is perpendicular to said first plane and which also contains said cylinder bore axis, said fuel injector receiving opening being disposed beneath said flow passages at said one side of said cylinder head, said fuel injector receiving opening extending to said common cylinder head outer side surface, each of said flow passages being inclined at a respective acute angle to said second plane from said common cylinder head side surface to its termination at the respective valve seat so that fuel injector receiving opening is cleared without requiting sharp curvatures or substantial reduction in the flow area of said flow passage, one of said flow passages being inclined toward said fuel injector receiving opening and overlying said fuel injector receiving opening in the area of its opening in said common cylinder head side surface.