Working of four stroke diesel engine PPT

This post is useful for the Second year BE-Mechanical Engineering Students for the subject ME 6404-Thermal Engineering as well as for the students of Automobile Engineering.

 Click: ME6404 Thermal Engineering Lecture Plan

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Click: ME6404 Thermal Engineering Lecture notes

Click: Internal Combustion Engines lecture notes

Anna University

Department of Mechanical Engineering
Regulation 2013
Year/Sem: II/IV
Subject Code and Name : ME 6404 Thermal Engineering 

For Mechanical, Production, Automobile Engineers must know about the working principle of an Engine. How does combustion takes place. For that I have post the working of four stroke diesel engine which may be easy to understand.

UNIT II INTERNAL COMBUSTION ENGINES 

Classification - Components and their function. Valve timing diagram and port timing diagram - actual and theoretical p-V diagram of four stroke and two stroke engines. Simple and complete Carburettor. MPFI, Diesel pump and injector system. Battery and Magneto Ignition System - Principles of Combustion and knocking in SI and CI Engines. Lubrication and Cooling systems. Performance calculation.

I hope you can better understand about first (suction ) stroke, Now let us go to understand about other three strokes.

The second stroke of the diesel engine is given below. 

The compression stroke schematic diagram is shown in below figure. 

The following exhaust stroke is the final stroke of an engine. Here the exhaust emission such as NOx, CO, CO2, Ash content were released through the exhaust line or silencer.

The Power and exhaust strokes schematic diagram is shown in figure.

This is the working principle of four stroke diesel engine. I hope this post is more useful to you. For all subjects study materials - see the left side of this page.

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