Basic knowledge of gasoline engine

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Basic knowledge of gasoline engine

the basic knowledge of gasoline engine is a kind of internal combustion engine, which uses highly volatile gasoline as fuel. The gasoline engine introduces the mixture of foggy gasoline and air into the cylinder, and then uses electrode spark to burn the mixed gas. The high-temperature and high-pressure gas formed during combustion drives the piston for reciprocating motion. The reciprocating motion uses the crank to turn the movement into rotation

the working process of Otto internal combustion engine can be divided into four strokes, namely, suction stroke, compression stroke, work (work done by fuel combustion and gas expansion, also known as explosion stroke) stroke and exhaust stroke. These four strokes are a cycle of internal combustion engine. Judging from the working conditions of the internal combustion engine, the jaw chuck needs to be removed when it is combustible. The chemical reaction of the gas is its energy, causing the high temperature of the working medium; The cylinder piston is its working part; The waste working medium that has done work is discharged into the atmosphere, and the atmosphere is used as its condenser. Because the temperature generated by the combustion of combustible gas mixture in the cylinder is very high (above 1500 ℃), the efficiency of internal combustion engine is higher than that of steam engine. During the operation of Otto internal combustion engine, about 25% of the heat is used as useful work, 10% of the heat is lost in friction, 25% of the heat is taken away by the exhaust gas, and 40% of the heat is transferred to the cooling water outside the cylinder. Therefore, when he is more and more familiar with this kind of material, the efficiency is generally 20 ~ 30%. The power of Otto internal combustion engine varies, ranging from 367.7 watts (1/2 HP) to 1838.8 kW. 8. Prevent hard object collision sensor (2500 HP)


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