4-Stroke & 2-Stroke 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 two-stroke and four-stroke piston engines, along with variants, such as the six-stroke piston engine and the Wankel rotary engine.

Four-Stroke 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 four-stroke engine, all the events, i.e., suction, compression, power, and exhaust, are completed in two revolutions of the crankshaft.

Four-Stroke Diesel Engine:
The basic construction of a four-stroke 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.

Two-stroke Petrol Engine:
The two-stroke 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 two-stroke petrol engines also work on the principle of working the otto cycle.

Two-Stroke Cycle Diesel Engine:
The Two-stroke 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 - 4-Stroke Petrol/Gasoline Engine
04:50 - 4-Stroke Diesel Engine
06:49 - 2-Stroke Petrol/Gasoline Engine
08:29 - 2-Stroke Diesel Engine
09:33 - Advantages & Disadvantages
11:36 - Outro

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