potochnystanis

07.01.2022 22:42

Английский язык

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In a four-stroke engine, a series of movements causes fuel to be converted into forward motion. The difference between a 4-cylinder and 6-cylinder engine is that the latter produces more power. This is due to the two extra cylinders. In a basic engine design, pistons travel down cylinder sleeves or chambers (камеры), allowing intake valves to open. Intake valves let fuel and air enter the cylinders, while rising pistons compress these gases. Spark plugs ignite the compressed gas, causing explosions that drive the pistons back down. The next rise of the pistons coincides with exhaust valves opening to clear the chambers. The timing of the pistons is staggered so that one pair rises while another falls. Pistons are connected to rocker arms, which turn a crankshaft; the crankshaft turns the wheels, thereby converting fuel into motion. In a 4-cylinder engine, there are four pistons rising and falling in four chambers. A6-cylinder engine has six pistons and produces a theoretical 50% more power than the same 4-cylinder engine. While a 4-cylinder engine might hesitate when you press on the gas, a 6-cylinder is more responsive. The 4-cylinder engine is standard in smaller cars, as the relatively light weight of the vehicle makes it an economical choice with plenty of power for average motoring needs. Many models include a 6-cylinder engine up- grade option. The 6-cylinder engine is standard in passenger cars, vans, small trucks and small to midsize sports utility vehicles (SUVs). Standard trucks and larger SUVs commonly feature an 8-cylinder engine. These heavier ve- hicles are used for towing and carrying substantial weight. Though more cyl- inders equal more power when comparing the same engine models, there are exceptions when comparing different engines. Improved engine designs over the years have resulted in substantial gains. This has made 4-cylinder engines more powerful than they were a decade ago, and 8-cylinder engines more fuel-efficient than they once were. In short, a 6-cylinder engine from 1993 might have less power than a recently designed 4-cylinder engine. In addition, a new 8-cylinder engine might get better gas mileage than the older 6-cylinder engine. If deciding between a 4- and 6-cylinder engine on a new vehicle, перевод