Patent ID: 6209507
Filing Date: 2001-04-03
Classification: F01L,F02F

Abstract:
A cylinder head assembly for an overhead camshaft engine comprising a main cylinder head member defining a lower sealing surface for sealing engagement with a cylinder block and at least one portion of said lower surface cooperating with a cylinder bore of the cylinder block to define a combustion chamber, said cylinder head member having an uppermost peripheral surface surrounding a cam chamber and adapted to sealingly engage with a cam cover for enclosing said cam chamber, and a cam and tappet carrier member affixed to said main cylinder head member within said cam chamber inwardly of said uppermost peripheral surface and below said uppermost peripheral surface so that said uppermost peripheral surface only absorbs the sealing force of said cam cover, said cam and tappet carrier member having at least two transversely extending members each defining a respective bearing surface for journaling a camshaft, said bearing surfaces being disposed directly adjacent and on opposite sides of the cylinder bore, said cam and tappet carrier member having an integral wall portion connected only to and extending longitudinally between said transversely extending members, said integral wall portion forming at least three tappet bores between said bearing surfaces for slidably receiving at least three bucket tappets actuated by the camshaft for operating valves supported by said main cylinder head member and serving said combustion chamber.