-: Internal Combustion (I.C.) Engine :-
An heat engine , in which the combustion of fuel in the presence of air takes place inside the cylinder and produced gases act on piston to develop the power is known as I.C. Engine .
Ex- Petrol engine, Diesel Engines , Gas Engines etc .
-: Classification of I.C. Engines :-
I.C. engines are classified as follows -
1- According to the cycle of Operation :-
According to the cycle of operation the I.C. engine are of two types -
(i)- Four stroke engines
(ii)- Two stroke engines
(i)- Four Stroke Engines - In this type of engines cycle is completed in two revolution of crank .
(ii)- Two Stroke Engines - In this type of engine cycle is completed in one revolution of crank .
2- According to the nature of Thermodynamic cycle :-
According to the nature of thermodynamic cycle there are three types -
(i)- Otto Cycle Engines
(ii)- Diesel Cycle Engines
(iii)- Dual Cycle Engines
3- According to Method of Ignition :-
According to the method of ignition there are two types of engine -
(i)- Spark Ignition (S.I.) Engines
(ii)- Compression Ignition ( C.I. )
(i)- Spark Ignition ( S.I.) Engines -
In this type of engines air - fuel mixture supplied by carburetor is ignited by producing spark . It is also called petrol engine .
(ii)-Compression Ignition (C.I.) - In this type of engines air is compressed to higher pressure and in fine atomised form fuel is injected in combustion chamber . Hence air- fuel mixture is ignited without producing spark . It is also called Diesel Engines .
4- According to Number of Cylinders :-
According to the number of cylinders there are two types of engines -
(i)- Single Cylinder Engine
(ii)- Multi Cylinder Engines
5- According to the type of Cooling System :-
According to the type of cooling system there are two types of engines -
(i)- Air Cooled Engines
(ii)- Water Cooled Engines
(i)- Air Cooled Engines -
In which engines , normal air is used for cooling purpose is known as air cooled engine .
(ii)- Water Cooled Engines -
In which engines , water jacket is used around the cylinder for cooling purpose , is known as water cooled engine .
6- According to Speed of Engine :-
According to the speed of engine there are three types of engines -
(i)- Low Speed Engine
(ii)- Medium Speed Engine
(iii)- High Speed Engine
7- According to the lubrication method :-
According to the lubrication method there are three types of engines -
(i)- Wet Sump Lubricating Engine
(ii)- Dry Sump Lubricating Engine
(iii)- Pressure Lubricating Engine
8- According to the Fuel used :-
According to the fuel used there are three types of engines -
(i)- Petrol Engine
(ii)- Diesel Engine
(iii)- Gas Engine
9- According to the Field of Operation :-
According to the field of operation there are four types of engines -
(i)- Automotive Engines
(ii)- Stationary Engines
(iii)- Locomotive Engines
(iv)- Marine Engines
10- According to arrangement of Cylinder :-
According to the arrangement of cylinders there are seven types of engines -
(i)- Vertical Engine
(ii)- Horizontal Engine
(iii)- V-Engine
(iv)- W-Engine
(v)- Radial Engines
(vi)- Opposed Cylinders Engines
(vii)- Opposed Piston Engines
(i)- Vertical Engine -
In which engines , cylinder is in vertical position , is known as vertical engine .
(ii)- Horizontal Engine -
In which engines , cylinder is in horizontal position is known as horizontal position .
(iii)- V-Engine -
In which engines , two cylinders are arranged at an angle connected to a common crank is known as V-Engine .
(iv)- W-Engine -
In which engines , three cylinders are arranged at an angle connected to a common crank is known as W-Engine .
(v)- Radial Engine -
In which engines , 4 to 6 cylinders are placed radially and equally spaced and connected to a common crank is known as radial engine .
(vi)- Opposed Cylinder engine -
In which engines , cylinders are arranged on opposite side of a common crank , is known as opposite cylinder engine .
(vii)- Opposed Piston engine -
In which cylinders single cylinder houses two pistons each of which drive separate crank is known as opposed piston engine.
An heat engine , in which the combustion of fuel in the presence of air takes place inside the cylinder and produced gases act on piston to develop the power is known as I.C. Engine .
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| Image Source : Google |
Ex- Petrol engine, Diesel Engines , Gas Engines etc .
-: Classification of I.C. Engines :-
I.C. engines are classified as follows -
1- According to the cycle of Operation :-
According to the cycle of operation the I.C. engine are of two types -
(i)- Four stroke engines
(ii)- Two stroke engines
(i)- Four Stroke Engines - In this type of engines cycle is completed in two revolution of crank .
(ii)- Two Stroke Engines - In this type of engine cycle is completed in one revolution of crank .
2- According to the nature of Thermodynamic cycle :-
According to the nature of thermodynamic cycle there are three types -
(i)- Otto Cycle Engines
(ii)- Diesel Cycle Engines
(iii)- Dual Cycle Engines
3- According to Method of Ignition :-
According to the method of ignition there are two types of engine -
(i)- Spark Ignition (S.I.) Engines
(ii)- Compression Ignition ( C.I. )
(i)- Spark Ignition ( S.I.) Engines -
In this type of engines air - fuel mixture supplied by carburetor is ignited by producing spark . It is also called petrol engine .
(ii)-Compression Ignition (C.I.) - In this type of engines air is compressed to higher pressure and in fine atomised form fuel is injected in combustion chamber . Hence air- fuel mixture is ignited without producing spark . It is also called Diesel Engines .
4- According to Number of Cylinders :-
According to the number of cylinders there are two types of engines -
(i)- Single Cylinder Engine
(ii)- Multi Cylinder Engines
5- According to the type of Cooling System :-
According to the type of cooling system there are two types of engines -
(i)- Air Cooled Engines
(ii)- Water Cooled Engines
(i)- Air Cooled Engines -
In which engines , normal air is used for cooling purpose is known as air cooled engine .
(ii)- Water Cooled Engines -
In which engines , water jacket is used around the cylinder for cooling purpose , is known as water cooled engine .
6- According to Speed of Engine :-
According to the speed of engine there are three types of engines -
(i)- Low Speed Engine
(ii)- Medium Speed Engine
(iii)- High Speed Engine
7- According to the lubrication method :-
According to the lubrication method there are three types of engines -
(i)- Wet Sump Lubricating Engine
(ii)- Dry Sump Lubricating Engine
(iii)- Pressure Lubricating Engine
8- According to the Fuel used :-
According to the fuel used there are three types of engines -
(i)- Petrol Engine
(ii)- Diesel Engine
(iii)- Gas Engine
9- According to the Field of Operation :-
According to the field of operation there are four types of engines -
(i)- Automotive Engines
(ii)- Stationary Engines
(iii)- Locomotive Engines
(iv)- Marine Engines
10- According to arrangement of Cylinder :-
According to the arrangement of cylinders there are seven types of engines -
(i)- Vertical Engine
(ii)- Horizontal Engine
(iii)- V-Engine
(iv)- W-Engine
(v)- Radial Engines
(vi)- Opposed Cylinders Engines
(vii)- Opposed Piston Engines
(i)- Vertical Engine -
In which engines , cylinder is in vertical position , is known as vertical engine .
(ii)- Horizontal Engine -
In which engines , cylinder is in horizontal position is known as horizontal position .
(iii)- V-Engine -
In which engines , two cylinders are arranged at an angle connected to a common crank is known as V-Engine .
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| Image Source : Google |
(iv)- W-Engine -
In which engines , three cylinders are arranged at an angle connected to a common crank is known as W-Engine .
 |
| Image Source : Google |
(v)- Radial Engine -
In which engines , 4 to 6 cylinders are placed radially and equally spaced and connected to a common crank is known as radial engine .
 |
| Image Source : Google |
(vi)- Opposed Cylinder engine -
In which engines , cylinders are arranged on opposite side of a common crank , is known as opposite cylinder engine .
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| Image Source : Google |
(vii)- Opposed Piston engine -
In which cylinders single cylinder houses two pistons each of which drive separate crank is known as opposed piston engine.
 |
| Image Source : Google |
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