Cylinder head, of heat engine, is fitted with valves, fixed to blocks, to follow cams, such that valve and block are accessible externally, through plugs mounted on opposite sides of head

摘要

The cylinder head, for a heat engine, carries a series of valves (10), opening into a combustion chamber (7). Each valve is fixed to a block (11), with a return spring (12) fitted between. Each block is driven under the control of a cam (14), mounted on a camshaft (15).. A plug (31) is mounted in the cylinder head, co-axially with each valve, such that the valve is removable from the outside of the cylinder head. The block is accessible by means of a second removable mask (21)