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PERFORMANCE AND EVALUATION OF 4 STROKE
DIESEL ENGINE
Abhijeet kohad1, Mahesh Khilari2, Chetan Chaudhari3, Shridhar karandikar4
1234Student of Amrutvahini College of Engineering,Sangamner.
ABSTRACT
The review paper covers view on modification of 4 stroke diesel engine. In this paper, we are trying to summarize
the parameters and modification done in diesel engines with suitable experimental data and its scope in our project
on Diesel engine. Our paper deals with modification at primary grounds to reduce weight, vibrations and improve
efficiency by replacing the conventional model with robust design. Our profound study came to conclusion that
parameters such as air fuel ratio, vibrations, proper material selection will impart required output. Prior to the data
collected we are summing up our ideas with relevant concepts and calculations. Our paper will reveal important
aspects and will prove beneficial for upcoming paper channelizing our research on diesel engine.
Keywords: Exhaust valves, heat transfer rates, Inlet valve, Piston, liner materials, unbalanced forces.
I. INTRODUCTION
In diesel engine the common problem arises mainly in context of weight reduction, emissions, vibrations and
durability, so to bring forth newer modifications a study must be made on the important parameters which contribute
to account for the above factors. Given below are the modifications which will have positive outcome on diesel
engine and these points will be considered for our study where our objective will be to design and perform thermal
modeling on 4 stroke diesel engine. Firstly in context of air fuel ratio replacing the older 2-valve mechanism with
newer and efficient 4-valve mechanism will ensure higher suction volume, complete combustion and less polluting
exhaust. In case of vibrations minimizing the unbalanced forces acting on the engine will ensure durability by
lowering fatigue failures and will check uniformity of forces acting on it. On considering comparative analysis on
materials replacing aluminum as material for connecting rod instead of forged steel will ensure additional benefits
and one of the important aspect for thermal considerations consist selection of liner materials for lower heat
absorption.
II. REPLACING THE OLDER 2-VALVE MECHANISM WITH NEWER AND EFFICIENT 4-
VALVE MECHANISM. [1].
In Conventional diesel engine, mostly 2 valves mechanism were used, but after discovery of 4 valves studies
illustrated that 4 valves system proved to be beneficial in terms of thermal efficiency and other factors.
