4Stroke & 2Stroke Engine | Its Parts & Working Explained

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I. C. Engine, an acronym for an internal combustion engine, is an engine in which fuel ignition and combustion occur inside the engine. It works on the principle that the charge is ignited inside a combustion chamber under very high pressure.

The term internal combustion engine usually refers to an engine in which combustion is intermittent, such as the more familiar twostroke and fourstroke piston engines, along with variants, such as the sixstroke piston engine and the Wankel rotary engine.

FourStroke Engine:
The petrol engine works on the principle of the otto cycle, also known as the constant volume cycle. The spark plug fitted at the top of the cover initiates the ignition of the petrol. In a fourstroke engine, all the events, i.e., suction, compression, power, and exhaust, are completed in two revolutions of the crankshaft.

FourStroke Diesel Engine:
The basic construction of a fourstroke diesel engine is the same as that of four stroke petrol engine, except instead of the spark plug, a fuel injector is mounted in its place. A fuel pump supplies the fuel oil to the injector at higher pressure. It works on the diesel cycle or constant pressure cycle.

Twostroke Petrol Engine:
The twostroke engine requires one revolution of the crankshaft or two piston strokes to complete the cycle of events (i.e., suction, compression, power, and exhaust). The twostroke petrol engines also work on the principle of working the otto cycle.

TwoStroke Cycle Diesel Engine:
The Twostroke Diesel engine works like the Petrol engine, but it injects diesel at the end of the compression stroke.

Time Stamp
00:00 Introduction
00:41 Parts of IC Engine
02:45 4Stroke Petrol/Gasoline Engine
04:50 4Stroke Diesel Engine
06:49 2Stroke Petrol/Gasoline Engine
08:29 2Stroke Diesel Engine
09:33 Advantages & Disadvantages
11:36 Outro

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