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How does an air-cooled four-stroke gasoline engine work
Jun 27,2022
1. Suction stroke: the piston descends and the mixture is sucked in;
2. Compression stroke: the piston rises to compress the mixture;
3. Power stroke: ignition and combustion of fuel, the piston presses down to do work;
4. Exhaust stroke: the piston rises to remove exhaust gas.
The air-cooled four-stroke gasoline engine completes a working cycle in the intake stroke, compression stroke, power stroke and exhaust stroke. The air-cooled four-stroke gasoline engine mixes air and gasoline in a certain proportion to form a good mixture, which is sucked into the cylinder during the suction stroke, and the mixture is compressed, ignited and burned to generate heat energy. The heat energy increases the gas pressure. At the top, push the piston to make a reciprocating linear motion, and output mechanical energy through the connecting rod, crankshaft, and flywheel mechanism. The exhaust valve opens, the piston moves upward, and the exhaust gas after combustion is discharged. When the piston moves to the top, the exhaust valve closes.
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