Features/Functions:

1. The cylinder head is usually equipped with fuel injectors, intake and exhaust valves, starting valves, indicator valves, safety valves, and intake and exhaust mechanisms. The interior of the cylinder head is arranged with intake and exhaust channel, cooling water chambers, bolt holes, etc. So, the cylinder head is one of the most complex components of the internal combustion engines；

2. The main role is to seal the cylinder, which forms the combustion chamber together with the piston and cylinder liner.