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GEETANJALI INSTITUTE OF TECHNICAL STUDIES A Presentation

on Demonstration of

INTERNAL COMBUSTION ENGINE

Approved by :- Prof. Vishnu Agarwal HOD,Mechanical

Submitted By :- Kapil Vadiyar

DEPARTMENT OF MECHANICAL ENGINEERING

GITS IN HOUSE TRANING

DISASSEMBLY- REASSEMBLY

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GITS IN HOUSE TRANING MODULE1. DESIGNING SOFTWARE

SOLID WORKS ANSYS

2. WHEEL BALANCING AND WHEEL ALIGNMENT

3. CNC LATHE MACHINE4. IC ENGINE

DISASSEMBLY REASSEMBLY

5. WELDING6. SOFT SKILLS

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INTERNAL COMBUSTION ENGINE

REASSEMBLY

DISASSEMBLY

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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.

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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 engine• In 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

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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.

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DISASSEMBLY OF 4 STORKE ENGINE: Disconnect The Spark Plug.

Head nut open & Remove head cover. Remove Head cover Gasket. Clean The Engine Exterior . Open the inlet & outlet manifold.

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Remove The Air Cleaner. Remove The Carburetor. Remove The Fuel Tank. Remove The Fuel Pump. Remove The Ignition

System.

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Remove Rocker Arm bolt. Push Rod & Valve Spring. Timing chain (one end). Remove The Cylinder Head. Disassembled Flywheel and Clutch.

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Oil Drain Bolt & Oil Filter. Open the Crank case (OIL PAN). Disconnect the other End of Timing

chain. Remove The Connecting Rod

Bigger end. Disassembled the Crank shaft. Slide piston Downward and

separate it.

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Internal combustion Engine Components:

BlockCylinder Hard grade cast-iron.

(Casting)

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Head

Crank Shaft

Cast-iron or Aluminium(Casting,Forging)

Carbon Steel Alloy(Forging)

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Connecting Rod

Piston Ring

Alloy steel(Forging)

Cast Iron(Casting)

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Crank case

Cam Shaft Cast-iron (Casting)

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BEARING

SEALS

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AIR CLEANER

Oil Pump

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I.C. Engine components apart from Engine shown in the figure:

Flywheel

Fuel Injector

Steel or Cast-iron (Casting)

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PumpCarburett

or

Spark plug

Cast-iron, Zinc& Aluminium

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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

21ENGINE TERMINOLOGY

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FOUR STROKE PETROL ENGINE (SI):Suction Stroke (Fuel+Air)

Compression Stroke Expansion Stroke (Power Stroke)

Exhaust Stroke (Flue Gases)

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I am grateful to “Mechanical Department” for this valuable

guidance and assessment.

“Thank you”