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GEETANJALI INSTITUTE OF TECHNICAL STUDIES A Presentationon Demonstration of INTERNAL COMBUSTION ENGINE
Guided by :- Mechanical Department Approved by :- Prof. Vishnu Agarwal HOD,Mechanical
Team :- Kapil Vadiyar Jayesh Sharma
DEPARTMENT OF MECHANICAL ENGINEERING
ABSTRACTThe purpose of this Presentation is to make familiar with INTERNAL COMBUSTION ENGINE. The whole report is prepared after deep studying of Automobile IC-ENGINE. Since many books are available regarding to this but this Presentation is very helpful for our Knowledge purpose.
INTRODUCTION: =Heat engine : It can be defined as any engine that converts thermal energy to mechanical work output. Examples of heat engines include: steam engine, diesel engine, and gasoline (petrol) engine.
TYPES OF COMBUSTION ENGINE
In an Internal combustion engine, combustion takes place within working fluid of the engine, thus fluid gets contaminated with combustion products.Example : Petrol engineIn an External combustion engine, working fluid gets energy using boilers by burning fossil fuels or any other fuel, thus the working fluid does not come in contact with combustion products. Example: Steam engine
IC-ENGINES MAY BE CLASSIFIED AS :
Spark Ignition engines(SI).Compression Ignition engines(CI).
Spark ignition and Compression Ignition engine operate on either a four stroke cycle or a two stroke cycle.
PARTS OF IC- ENGINE:
Internal combustion Engine Components:BlockCylinder
Hard grade cast-iron. (Casting)
Cast-iron or Aluminium(Casting,Forging)Carbon Steel Alloy(Forging)
Alloy steel(Forging)Cast Iron(Casting)
Cam Shaft Cast-iron (Casting)
I.C. Engine components apart from Engine shown in the figure:FlywheelFuel Injector
Steel or Cast-iron (Casting)
Cast-iron, Zinc& Aluminium
Engine Terminology :Top Dead Center (TDC)Bottom Dead Center (BDC)Bore Stroke (TDC-BDC) Swept Volume (Vs)Clearance Volume (Vc)Compression Ratio (Vs+Vc)/Vc
FOUR STROKE PETROL ENGINE (SI)Suction Stroke (Fuel+Air) Compression Stroke Expansion Stroke (Power Stroke)Exhaust Stroke (Flue Gases)
FIGURE: SUCTION STROKE
FIGURE: COMPRESSION STROKE
FIGURE: COMBUSTION FOLLOWED BY EXPANSION STROKE.
FIGURE : EXHAUST STROKE
COMPRESSION IGNITION ENGINE :Suction Stroke (Only Air)Compression Stroke (Fuel Injected) Expansion Stroke Exhaust Stroke (Flue Gases)
FIGURE:SUCTION STROKEFIGURE: COMPRESSION STROKE
FIGURE: EXPANSION STROKE
FIGURE: EXHAUST STROKE
We are grateful to Mechanical Department for his valuable guidance and assessment.