What are the two major mechanisms and five major systems that make up a gasoline engine?

[HazelAnn]

Gasoline engines consist of two major mechanisms and five major systems. The two major mechanisms are the crank-connecting rod mechanism and the valve train mechanism. The five major systems are the fuel supply system, cooling system, lubrication system, starting system, and ignition system. Below are the characteristics and principles of gasoline engines: 1. In a gasoline engine, the air-fuel mixture enters the cylinder and is ignited by the spark plug when compression is nearly complete. Therefore, gasoline engines require an ignition system to control when the spark plug operates. 2. To ensure the normal operation of the gasoline engine, it is necessary to precisely control the timing of the spark plug discharge and the magnitude of the spark energy. Hence, the fuel supply system and ignition system are the parts with a relatively high proportion of failures.

[DeFinn]

I often study the basic structure of gasoline engines, which consists of two major mechanisms and five major systems. The two major mechanisms are the crankshaft-connecting rod mechanism and the valve mechanism: the crankshaft-connecting rod mechanism converts the up-and-down motion of the piston into the rotation of the wheels, which is the core of how the engine runs; the valve mechanism controls the air intake and exhaust of the engine, ensuring the proper mixing of fuel and air. The five major systems include the fuel supply system (responsible for feeding fuel to the engine, such as the fuel tank and injectors), the lubrication system (oiling internal components to prevent wear), the cooling system (using water or radiators to cool down and avoid overheating), the starting system (helping you start the engine, like the ignition key part), and the ignition system (sparking to ignite the fuel). If these parts are not coordinated, the engine will lose power or malfunction, like a broken link in a chain. When driving regularly, it's important to maintain these systems periodically; otherwise, the car may easily break down and cause delays. I prioritize checking the ignition system because its failure often leads to the inability to start the car, affecting daily use.

[OKing]

I've been repairing cars for over a decade, and I'm very familiar with the two major mechanisms and five major systems of gasoline engines. The two major mechanisms are the crank-connecting rod and the valve train. The crank-connecting rod handles the movement of the pistons, making the car move, while the valve train opens and closes the valves, managing the airflow. The five major systems are the fuel supply (fuel delivery equipment), lubrication (oil circulation), cooling (heat dissipation components), starting (related to the ignition button), and ignition system (spark generation). These components often have common issues, such as insufficient oil in the lubrication system causing the engine to seize, or leaks in the cooling system leading to engine overheating. I pay the most attention to the fuel supply and ignition systems because if they fail, the car won't start. During inspections, don't just change the oil—also check the filters. Maintaining these properly ensures the car is durable and fuel-efficient.

[Kenny]

When I first learned to drive, I was curious about how gasoline engines work. They consist of two major parts and five small systems. The two major mechanisms are the crankshaft connecting rod mechanism, which converts the up-and-down motion of the piston into wheel rotation, and the valve train mechanism, which controls intake and exhaust like opening and closing doors. The five systems are the fuel supply system for adding fuel, the lubrication system for oiling, the cooling system for temperature reduction, the starting system for ignition, and the ignition system for sparking. Simply put, without fuel supply, the car won't run; poor lubrication can damage the engine; insufficient cooling leads to overheating; starting issues may require a tow truck; and ignition failure means the engine won't start. I think paying attention to these aspects in daily driving, such as checking engine oil and coolant, can help avoid many problems.