What are the two major mechanisms and five major systems of an automobile?
2 Answers
The two major mechanisms of an engine are the crank-connecting rod mechanism and the valve train mechanism, while the five major systems are the fuel supply system, lubrication system, cooling system, ignition system, and starting system. Below is supplementary information about automobile engines: 1. Classification: Automobile engines can be categorized into diesel engines, gasoline engines, electric vehicle motors, and hybrids, among others. 2. Structure: Common gasoline and diesel engines are both reciprocating piston-type internal combustion engines, which convert the chemical energy of fuel into the mechanical energy of piston motion to output power. 3. Advantages and disadvantages of gasoline and diesel engines: Gasoline engines have higher rotational speeds, lighter weight, lower noise levels, easier starting, and lower manufacturing costs. Diesel engines have higher compression ratios, greater thermal efficiency, and better economic and emission performance compared to gasoline engines.
The two major mechanisms of a car are mainly the crankshaft connecting rod mechanism and the valve train. The crankshaft connecting rod mechanism acts like the skeleton of the engine, converting the up-and-down motion of the pistons into the rotational power of the wheels; the valve train is the main control for intake and exhaust, managing the flow of air and fuel. The five major systems are typically the cooling system, lubrication system, fuel supply system, ignition system, and starting system. The cooling system is responsible for dissipating heat, using coolant to prevent the engine from overheating; the lubrication system reduces friction through engine oil, ensuring smooth operation of parts; the fuel supply system delivers fuel to the engine; the ignition system generates sparks to ignite fuel in gasoline cars; and the starting system initiates the engine. From my driving experience, these components are like the lifeblood of a car. Regularly checking the engine oil and coolant can prevent many issues, ensuring the car runs safely and efficiently.
