Car Engine Parts
Car Engine Parts and Functions
In this post, we will discuss the engine parts. As you know that an engine is a machine designed to
convert one form of energy into mechanical energy. Heat engines burn a fuel to create heat which is
then used to do work. The engine has two types one is the internal combustion engine and another
one is external combustion engine.
The internal combustion engine is those heat engines that burn their fuel inside the engine
cylinder.
External combustion engines are those heat engine that burns their fuel outside the
cylinder engine.
The engine most essential part of automobile industries or we can say that the engine is the heart of
an automobile. The function and construction of each engine parts of an internal combustion engine
are explained. The key to the engine is as follows.
The Main Car Engine Parts Are as Follows:
1. Cylinder Block
2. Cylinder Head
3. Crank Case
4. Oil Pan
5. Manifolds
6. Gasket
7. Cylinder Liner
8. Piston
9. A Piston Ring
10. Connecting Rod
11. Piston Pin
12. Crank Shaft
13. CamShaft
14. Flywheels
15. Engine Valves
1. Poppet valve
2. Sleeve valve
3. Rotary valve
16. Governers
Read Also: Solex Carburettor: Its Types and Working Principle
1. Cylinder block
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, Car Engine Parts
A cylinder block consists of three parts:
1. The cylinder in which the piston slid up and down.
2. The port or opening for the valves.
3. The passages for the flow of cooling water.
Construction and working:
The cylinder block is usually made of grey cast iron or aluminium and its alloys.
While the crankcase is fixed to its bottom. Apart from these other parts like timing gear
water pump, ignition distributor, flywheel, fuel pump etc., are also attached to it.
Passages are provided in the cylinder walls for the circulation of cooling water.
Mating surfaces of the block are carefully machined to provide a perfect sealing surface.
Cylinder block also carries lubrication oil to various components through drilled passages
called oil galleries.
Read Also: Spark Plug: Types, Parts, Working Principle, Requirements and More [Complete Guide]
2. Cylinder Head
Another type of engine parts is cylinder head it is joint between the cylinder head and cylinder block.
Construction
It is usually made up of cast iron and aluminium alloy.
The top of the cylinder is covered by a separate cast piece know as the cylinder head.
The cylinder head is attached to the cylinder block by means of studs fixed to the block
gaskets are used to provide a tight, leak-proof joint between the head and block.
TheEngineersPost.com Page 2
, Car Engine Parts
Cylinder head contains a combustion chamber above each cylinder.
It also contains valve guides, valve seats, ports, coolant jackets and threaded holes for spark
plugs. It incorporates passages for the flow of cooling water.
Applications
The cylinder head casts integrally with cylinder blocks also be done in a few cases usually in
racing cars to obtain a gas-tight joint.
The detachable head types are more advantages than integral construction.
However, for certain heavy-duty engine requires high cooling rates such as in racing cars
copper alloys may be used.
Types of Cylinder Head
Depending upon the valve and port layout, the cylinder head may be classified into three types as
follows:
Loop flow type
Offset cross flow type
Inline cross flow type
Loop flow type: In the loop, flow types the inlet and the exhaust manifolds are on the same side,
which facilitates preheating of the intake air.
Offset cross flow type: Offset cross flow types the inlet and the exhaust manifolds are placed on
different sides of the cylinder head.
In line cross flow type: In line cross-flow type, the valve is positioned transversely and usually
inclined to each other, while the inlet and the exhaust manifolds are on different sides of the
cylinder head. This arrangement gives better performance, but it is costlier.
Read Also: Fuel Pump: Types of Fuel Pump and Its Working Principle
3. Crankcase
TheEngineersPost.com Page 3
Car Engine Parts and Functions
In this post, we will discuss the engine parts. As you know that an engine is a machine designed to
convert one form of energy into mechanical energy. Heat engines burn a fuel to create heat which is
then used to do work. The engine has two types one is the internal combustion engine and another
one is external combustion engine.
The internal combustion engine is those heat engines that burn their fuel inside the engine
cylinder.
External combustion engines are those heat engine that burns their fuel outside the
cylinder engine.
The engine most essential part of automobile industries or we can say that the engine is the heart of
an automobile. The function and construction of each engine parts of an internal combustion engine
are explained. The key to the engine is as follows.
The Main Car Engine Parts Are as Follows:
1. Cylinder Block
2. Cylinder Head
3. Crank Case
4. Oil Pan
5. Manifolds
6. Gasket
7. Cylinder Liner
8. Piston
9. A Piston Ring
10. Connecting Rod
11. Piston Pin
12. Crank Shaft
13. CamShaft
14. Flywheels
15. Engine Valves
1. Poppet valve
2. Sleeve valve
3. Rotary valve
16. Governers
Read Also: Solex Carburettor: Its Types and Working Principle
1. Cylinder block
TheEngineersPost.com Page 1
, Car Engine Parts
A cylinder block consists of three parts:
1. The cylinder in which the piston slid up and down.
2. The port or opening for the valves.
3. The passages for the flow of cooling water.
Construction and working:
The cylinder block is usually made of grey cast iron or aluminium and its alloys.
While the crankcase is fixed to its bottom. Apart from these other parts like timing gear
water pump, ignition distributor, flywheel, fuel pump etc., are also attached to it.
Passages are provided in the cylinder walls for the circulation of cooling water.
Mating surfaces of the block are carefully machined to provide a perfect sealing surface.
Cylinder block also carries lubrication oil to various components through drilled passages
called oil galleries.
Read Also: Spark Plug: Types, Parts, Working Principle, Requirements and More [Complete Guide]
2. Cylinder Head
Another type of engine parts is cylinder head it is joint between the cylinder head and cylinder block.
Construction
It is usually made up of cast iron and aluminium alloy.
The top of the cylinder is covered by a separate cast piece know as the cylinder head.
The cylinder head is attached to the cylinder block by means of studs fixed to the block
gaskets are used to provide a tight, leak-proof joint between the head and block.
TheEngineersPost.com Page 2
, Car Engine Parts
Cylinder head contains a combustion chamber above each cylinder.
It also contains valve guides, valve seats, ports, coolant jackets and threaded holes for spark
plugs. It incorporates passages for the flow of cooling water.
Applications
The cylinder head casts integrally with cylinder blocks also be done in a few cases usually in
racing cars to obtain a gas-tight joint.
The detachable head types are more advantages than integral construction.
However, for certain heavy-duty engine requires high cooling rates such as in racing cars
copper alloys may be used.
Types of Cylinder Head
Depending upon the valve and port layout, the cylinder head may be classified into three types as
follows:
Loop flow type
Offset cross flow type
Inline cross flow type
Loop flow type: In the loop, flow types the inlet and the exhaust manifolds are on the same side,
which facilitates preheating of the intake air.
Offset cross flow type: Offset cross flow types the inlet and the exhaust manifolds are placed on
different sides of the cylinder head.
In line cross flow type: In line cross-flow type, the valve is positioned transversely and usually
inclined to each other, while the inlet and the exhaust manifolds are on different sides of the
cylinder head. This arrangement gives better performance, but it is costlier.
Read Also: Fuel Pump: Types of Fuel Pump and Its Working Principle
3. Crankcase
TheEngineersPost.com Page 3
