What is a cylinder head in an engine?
The main task of the cylinder head is to close the combustion chamber of the engine from the top. The upper part of the engine is called the cylinder head, while the lower part is the engine block. The cylinder head sits on the engine and closes off the combustion chamber.
What are the types of cylinder head?
The cylinder head may be classified depending upon the layout of valves and ports. There are mainly three types – Loop-flow type, offset cross-flow type or in-line cross-flow type. In the loop-flow design, the inlet & exhaust manifolds are on the same side which helps pre-heating of the intake air.
What parts are in the cylinder head?
Following are the parts of the cylinder head:
- Head gasket.
- Intake and exhaust ports.
- Head valves.
- Head combustion chamber.
- Spark plugs.
- Fuel injectors.
- Head camshaft.
- Additional cylinder head parts.
What are the five function of the cylinder head?
Among the main cylinder head function in an engine are: Provide the mounting structure for various components such as the inlet and outlet exhaust valves and ducts, spark plugs, injectors, and (in some head designs), the camshaft. Contain the passages for coolant, oil, and combustion gases.
What is the name of cylinder head?
In an overhead valve (OHV) or overhead camshaft (OHC) engine, a cylinder head consists of several passages (called ports); some of which form the path for intake gasses from the intake manifold to the combustion chamber, and the others are for exhaust gases to travel from combustion chamber to the exhaust manifold.
How is cylinder head made?
Thus cylinder heads are generally produced by gravity or low-pressure die casting. In Europe, grey cast iron cylinder heads have been almost completely replaced by cast aluminium alloys during the past 20 years.
What connects to the cylinder head?
For this to happen, there must be a connection between the cylinder head and the intake and exhaust manifolds. The cylinder head receives air from the intake manifold via its intake ports and down to the intake valves, where it goes all the way into the combustion chamber.
What are the five functions of the cylinder head?
Among the main cylinder head function in an engine are:
- Provide the mounting structure for various components such as the inlet and outlet exhaust valves and ducts, spark plugs, injectors, and (in some head designs), the camshaft.
- Contain the passages for coolant, oil, and combustion gases.
Which materials can a cylinder head be made of?
Cylinder heads are usually made of one of two materials, cast iron or aluminum. Iron cylinder heads are easier to produce and less expensive, but they are heavier than aluminum heads.
What is a complete cylinder head?
In an internal combustion engine, the cylinder head (often abbreviated to simply “head”) sits above the cylinders and forms the roof of the combustion chamber.
What materials can a cylinder head be made of?
While sand-cast grey-iron components remain important, automobile applications are seeing increased use of aluminum and a variety of casting processes. Most new automobile engines use aluminum cylinder heads, while at this writing new engine block designs are closely split between aluminum and cast iron.