I.C. Engines by AGRI Grovestudies

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 Brief details about I.C. engines.

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What is I.C. Engine?

I.C. engines stand for Internal Combustion Engines, which are engines that generate mechanical power through the combustion of fuel and air inside a confined space, called the combustion chamber. The most common types of internal combustion engines are gasoline engines, diesel engines, and gas turbine engines. These engines are used in a variety of applications including automobiles, airplanes, power generation, and industrial equipment.

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The working principle of an internal combustion engine (IC engine)

 Is based on the conversion of chemical energy stored in fuel into mechanical energy. The basic process of an IC engine involves the following steps:


Intake: Air and fuel are drawn into the engine cylinder through an intake valve.


Compression: The intake valve closes and the piston moves upward, compressing the air-fuel mixture.


Ignition: A spark from a spark plug ignites the compressed mixture, causing a rapid expansion of hot gases.


Power Stroke: The rapidly expanding gases push the piston downward, converting the thermal energy into mechanical energy.


Exhaust: The exhaust valve opens, and the spent gases are expelled from the cylinder.


This cycle is continuously repeated, creating the power output of the engine. The type of fuel used and the design of the engine determine the efficiency and performance of the IC engine.

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Two-Stroke vs Four-Stroke Engine

@Mr.Prashant.Sharma

comparison between two stroke and four stroke engine

Two-stroke engines and four-stroke engines are both internal combustion engines, but they have different operating principles and characteristics.

Two-stroke engines are lighter, less complex and have a lower power-to-weight ratio. They are usually found in smaller engines for motorcycles, scooters, and outboard motors. Two-stroke engines typically produce more pollution than four-stroke engines due to their incomplete combustion of fuel.

Four-stroke engines are more complex and heavier than two-stroke engines. They are used in automobiles, trucks, and some industrial applications. Four-stroke engines are more fuel efficient, produce fewer emissions and have a longer lifespan than two-stroke engines.

Overall, the choice between a two-stroke engine and a four-stroke engine depends on the intended use and specific requirements of the application.

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@Mr.Prashant.Sharma

Different components of ic engine 


An internal combustion (IC) engine has several major components, including:

Cylinder: It is the cylindrical chamber in which the combustion of fuel takes place.

Piston: It is a cylindrical component that moves up and down inside the cylinder. It is connected to the crankshaft through a connecting rod.

Crankshaft: It converts the reciprocating motion of the piston into rotary motion, which is then transmitted to the wheels in the case of an automobile.

Connecting rod: It connects the piston to the crankshaft, transmitting power from the former to the latter.

Spark Plug: It creates a spark in the combustion chamber to ignite the fuel-air mixture.

Camshaft: It operates the intake and exhaust valves, controlling the flow of air and fuel into the engine, and the exhaust out of it.

Valve Train: It consists of the valves, rocker arms, push rods, and lifters that control the flow of air and fuel into the engine and exhaust out of it.

Fuel System: It consists of a fuel pump, fuel injectors, carburetor, and other components that supply the engine with fuel.

Ignition System: It includes the spark plug, distributor, ignition coil, and other components that generate the spark to ignite the fuel-air mixture.

Lubrication System: It consists of an oil pump, oil filter, and oil cooler that keep the engine lubricated and cool.

These are the main components of an internal combustion engine, and their design, size, and type can vary depending on the engine's intended application and performance requirements.

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@Mr.Prashant.Sharma

Here are some commonly used terms in Internal Combustion Engine (ICE) technology:


Cylinder: A cylindrical component in which the combustion of fuel and air takes place.

Piston: A component that moves up and down in the cylinder and helps in the conversion of pressure into mechanical work.

Crankshaft: A component that converts the reciprocating motion of the piston into rotary motion.

Valve: A component that controls the flow of air and fuel into the cylinder and exhaust gases out of the cylinder.

Spark Plug: A component that provides the spark to ignite the fuel-air mixture in the combustion chamber.

Camshaft: A component that operates the valves by converting rotary motion into linear motion.

Fuel Injection System: A system that injects the fuel into the combustion chamber in a controlled manner.

Exhaust System: A system that removes the exhaust gases from the engine to the atmosphere.

Ignition System: A system that generates the spark to ignite the fuel-air mixture in the combustion chamber.

Lubrication System: A system that lubricates the moving components of the engine to reduce friction and wear.

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