The four-stroke cycle is the foundation of the engine. The first stroke is the intake stroke which the intake valve opens and the air and gas mixture enter the combustion chamber. The second stroke is the compression stroke and when that occurs the piston heads towards the bottom of the cylinder and then starts to rise to the top. The third stroke is the power stroke and as the piston rises to the top it goes to the highest possible point in the cylinder and when it is at that point the gas and air mixture is compressed and at that precise moment the spark plug administers a spark which the...

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• Grade Level: Undergraduate

Have you ever wondered why the only kind of engine used is the 4-stroke internal combustion, if there are any other alternatives to it? ... This engine is very unlike the regular 4-stroke internal combustion engine used in most cars; it uses no pistons. ... Producing power for the rotary engine is accomplished in four strokes, like conventional four stroke piston engines, but in a very different way. ...

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• Grade Level: High School

Its central rotor turns in one direction only, but it produces all four strokes (intake, compression, power and exhaust) effectively. ... The rotary has separate cylinders, pistons, valves and crankshaft, the rotary engine applies power directly to the transmission. Its construction allows it to provide the power of a standard engine that is twice its size and weight and that has twice the amount of parts. ... Just as the addition of cylinders increases the horsepower of a piston-powered engine, so the addition of combustion chambers increases the power of a rotary engine. ... Within a number ...

• Word Count: 656
• Approx Pages: 3
• Grade Level: High School