13/01/2025
📌 Following are the Main Parts of Cylinder or Engine Head:
In a piston engine, the cylinder head sits above the cylinders, forming the roof of the combustion chamber. In side valve engines the head is a simple plate of metal containing the spark plugs and possibly heat dissipation fins.
In more modern overhead valve and overhead camshaft engines, the head is a more complicated metal block containing the inlet and exhaust passages, and often coolant passages, Valvetrain components, and fuel injectors.
1. Valve Spring:
An engine valve spring is a coil spring that keeps the valves in an internal combustion engine in the correct position and opens and closes them properly.
2. Camshaft:
A camshaft is a shaft containing a row of pointed cams to convert rotational motion to reciprocating motion.
3. Rocker Arm:
A rocker's arm is a lever in an internal combustion engine that transfers motion from the camshaft to open the intake or exhaust valves.
4. Rocker Shaft:
A rocker shaft in an engine is a component that transmits the camshaft's movement to the engine's intake and exhaust valves.
5. Valve Clearance Adjuster:
A valve clearance adjuster, also known as a hydraulic lash adjuster, is a component of a valve mechanism that automatically adjusts the gap between the valve and the rocker arm.
6. Valve Retainer:
A valve retainer is a small, cylindrical part in an engine's valvetrain system that holds the valve spring and valve spring keeper in place.
7. Stud Hole:
A stud hole in an engine head is a threaded hole that a cylinder head stud screws into. Studs are often used in heavy-duty or performance applications instead of main cap bolts.
8. Thermostat Housing:
The thermostat housing is a vital part of a car's engine that houses the thermostat and regulates the coolant intake.
9. Engine Valve:
An engine valve is a moving part in the cylinder head of an engine that controls the flow of air and fuel into the combustion chamber and exhausts gases.