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Different Types of Engine

Date:2018-01-09Auto Engine Information Click:

In this article we will learn about different types of engine. The classification of the engines depends upon the types of fuel used, cycle of operation, number of stroke, type of ignition, number of cylinders, arrangement of cylinders, valve arrangement, types of cooling etc. these engines are used in different areas such as in automotive industries, aircraft industries, marine industries, etc. according to their suitability they are used in different areas. So let’s discuss about different engine types one by one.

Types of Engine

Basically the engines are of two types, and these are external combustion engines and internal combustion engines.

Different Types of Engine

(i). External combustion engine: In external combustion engine, the combustion of fuel takes place outside the engine. Example: steam engine.

(ii). Internal combustion engine: In internal combustion engine, the combustion of fuel takes place inside the engine. Two stroke and four stroke petrol and diesel engine are the examples of internal combustion engine.

There are different types of internal combustion (I.C.) engine and there classification depends upon various basis.

The I.C. engines are classified on the following basis:

1. Types of Design

Different Types of Engine

(i). Reciprocating engine: In reciprocating engine, there is a piston and cylinder, the piston does reciprocating (to and Fro) motion within the cylinder. Due to the reciprocating motion of the piston, it is called reciprocating engine. 2 stroke and four stroke engines are the common examples of reciprocating engine.

(ii). Rotary engine: In rotary engine, the rotor does rotary motion to produce power. There is no reciprocating motion. A rotor is present in the chamber which does rotary motion inside a chamber. Wankel rotary engine , turbine engines are the rotary types of engine.

2. Types of Fuel Used



On the basis of types of fuel used, the engine is classified as petrol engine, diesel engine and gas engine.

(i). Petrol engine: The engine which uses petrol for its working is called petrol engine.

(ii). Diesel engine: The engine which uses diesel for its working is called diesel engine.

(iii). Gas engine: An engine using gas fuel for the working is called gas engine.

3.Cycle of Operation

On the basis of cycle of operation the engine types are:

(i). Otto cycle engine: These types of engine works on Otto cycle.

(ii). Diesel cycle engine: The engine working on diesel cycle is called diesel cycle engine.

(iii). Dual cycle engine or semi-diesel cycle engine: The engine that works on both diesel as well as Otto cycle is called dual cycle engine or semi diesel cycle engine.

4.Number of Strokes

On the basis of number of stroke, the types of engine are:

(i). Four Stroke Engine: It is an engine in which the piston moves four times i.e.2 upward (form BDC to TDC) and 2 downward (from TDC to BDC) movement in one cycle of power stroke is called four stroke engines.

Different Types of Engine

 
Four Stroke Engine  

(ii). Two Stroke Engine: The engine in which the piston does two times motion i.e. one from TDC to BDC and other from BDC to TDC to produce a power stroke is called two stroke engines.

Different Types of Engine

 
Two Stroke Engine  

(iii). Hot spot ignition engine: This type of engine is not in practical use.

5. Type of Ignition

On the basis of ignition, the engines are classified as:

(i). Spark ignition engine (S.I. engine): In spark ignition engine there is a spark plug which is fitted at the engine head. The spark plug produces spark after the compression of the fuel and ignites the air fuel mixture for the combustion. The petrol engines are spark ignition engine.

(ii). Compression ignition engine (C.I. engine): In Compression ignition engine there is no spark plug at the cylinder head. The fuel is ignited by the heat of the compressed air. The diesel engines are compression ignition engine.

Also Read:

How Free Piston Engine Works?

Valve Timing Diagram of Two Stroke and Four Stroke Engine

How DTSi Engine Works – Explained?

6. Number of Cylinders

On the basis of number of cylinders present in the engine, the types of engine are:

Engine Different Types

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