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The working process of the engine is divided into four processes: air intake, compression, work and exhaust. The four-stroke engine accomplishes these four processes in four strokes of the piston moving up and down. Intake stroke:
The intake valves are open and the exhaust valves are closed. As the piston moves from top dead center to bottom dead center, the volume above the piston increases, and the pressure in the cylinder decreases, resulting in vacuum suction. Draw the flammable gas mixture into the cylinder.
Compression stroke: The intake and exhaust valves are closed, and the piston moves from the bottom dead center to the top dead center to press the mixed gas to the combustion chamber. Work Itinerary:
At the end of compression, the intake and exhaust valves are still closed, and the spark plug emits an electric spark to ignite the combustible mixture, and the gas after combustion expands violently, generating a huge pressure, forcing the piston to go down rapidly, and the crankshaft is rotated through the connecting rod. Exhaust stroke: The exhaust valve opens, the intake valve closes, and the piston moves from the bottom dead center to the top dead center to expel the exhaust gas.
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The duty cycle process of a four-stroke gasoline engine is, 1The intake process, also known as the inhalation process.
2.Compression process.
3.The process of work.
4.Exhaust process.
This is the working cycle of the four-stroke engine, only the working process is an active process, and the other three processes are all passive processes, which is why most of the four-stroke engines are four-cylinder.
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The working cycle of a four-stroke gasoline engine consists of 4 piston strokes, namely intake stroke, compression stroke, work stroke and exhaust stroke.
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Answer: The working process of the engine is divided into four processes: air intake, compression, work and exhaust. The four-stroke engine is the one that will bring these four.
The process is done in four strokes of the piston moving up and down. Intake stroke: The intake valve is open and the exhaust valve is closed. With live.
The plug moves from top dead center to bottom dead center, the volume above the piston increases, and the pressure in the cylinder decreases, resulting in vacuum suction. Put it away.
The gas mixture is sucted into the cylinder. Compression stroke: The intake valve and exhaust valve are closed, and the piston moves from the bottom dead center to the top dead center to mix.
The gas is pressed to the combustion chamber. Work stroke: At the end of compression, the intake valve and exhaust valve are still closed, the spark plug emits an electric spark, igniting the combustible mixture, and the gas after combustion expands violently, generating huge pressure, forcing the piston to go down quickly and push through the connecting rod.
The crankshaft rotates and works. Exhaust stroke: The exhaust valve opens, the intake valve closes, and the piston moves from bottom dead center to top dead center, will.
Exhaust gas elimination.
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