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A four-stroke (also four-cycle) engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning the crankshaft. A stroke refers to the full travel of the piston along the cylinder, in either direction.
4-stroke engines provide a good balance of power, reliability and efficiency. When it comes to emissions, 4-strokes mechanically separate each event, reducing unburned fuel emissions. They also separate oil from fuel, which significantly reduces carbon monoxide emissions.
The four-stroke piston engine is used in all cars and light trucks, and it doesn't matter if they burn gasoline or diesel. So what does four stroke mean? The crankshaft must go around twice, and each piston moves up and down two times, to produce one pulse of power.
This videos illustrates the working of 4 stroke engine, with all the four strokes explained and also at the end, a real-time animation at 5000RPM. !!!
A four-stroke engine is a famous type of internal combustion (IC) engine. This engine completes a power cycle in four strokes of the piston. The piston reciprocates inside the engine cylinder. This article explains the 4-stroke engine working, types, components, and applications.
The animation in this video shows you exactly how a four stroke diesel engine works and also how a four stroke petrol/gasoline engine works. You will learn all of the engine’s...
Four-stroke cycle, principle by which most modern automobile engines function. As illustrated by the figure, while the inlet valve is open, the piston first descends on the intake stroke. An ignitable mixture of gasoline vapour and air is drawn into the cylinder by the partial vacuum thus created.