4 Cylinder Engine

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A 4-cylinder engine is a type of internal combustion engine commonly used in various vehicles, such as cars, motorcycles, and light trucks. It consists of four individual cylinders arranged in a straight line (inline), in a V-shaped configuration (V4 or V6), or in an opposing arrangement (flat-four or boxer). Each cylinder houses a piston that moves up and down within the cylinder bore.During the engine's operation, a carefully timed sequence of events takes place in each cylinder. This sequence includes intake, compression, power, and exhaust strokes. During the intake stroke, the intake valve opens, allowing a mixture of air and fuel to enter the cylinder. The intake valve then closes, and the piston moves upward to compress the air-fuel mixture during the compression stroke.The power stroke occurs next when the compressed mixture is ignited by a spark plug. The rapid expansion of the burning gases forces the piston downward, generating mechanical energy. This energy is transferred through the connecting rod to the crankshaft, which converts the linear motion of the pistons into rotational motion.Finally, during the exhaust stroke, the exhaust valve opens, allowing the spent gases to exit the cylinder. The cycle repeats for all four cylinders in a continuous and synchronized manner, creating a continuous power output.Four-cylinder engines are popular due to their balance of performance, efficiency, and compact size. They are often known for their fuel efficiency, cost-effectiveness, and ease of maintenance. The configuration of a 4-cylinder engine can vary depending on the manufacturer and the intended use of the vehicle, with different cylinder arrangements offering distinct advantages and characteristics. Overall, 4-cylinder engines remain a common choice in the automotive industry, providing a practical and reliable power source for a wide range of vehicles.