What are the five major systems of an engine?
2 Answers
An engine consists of five major systems: the fuel supply system, starting system, cooling system, lubrication system, and ignition system. Below is relevant knowledge about engines: The function of an engine is: To serve as the power-generating device for a vehicle, acting as the heart of the car, determining its power, fuel efficiency, stability, and environmental performance. The components of an engine include: The engine block group, crankshaft connecting rod mechanism, valve train, fuel supply system, ignition system, cooling system, lubrication system, and starting system. An engine is a machine capable of converting other forms of energy into mechanical energy, applicable both as a power-generating device and as the entire machine including the power unit. Types of engines include internal combustion engines (such as gasoline engines), external combustion engines (such as Stirling engines and steam engines), and electric motors.
I've been driving for almost twenty years, and I feel that the five major engine systems are like the heart of a car, each with its own function. The fuel system is responsible for supplying fuel, ensuring the engine can run smoothly through combustion; the cooling system manages temperature to prevent overheating and damage to components; the lubrication system reduces friction between moving parts with engine oil, avoiding wear and tear; the ignition system ignites the air-fuel mixture in gasoline cars, initiating the combustion process; the exhaust system handles waste gases, safely expelling post-combustion gases from the vehicle. Among these, if the fuel system is blocked, the car may suddenly stall, catching you off guard; problems with the cooling system are even more dangerous, as high temperatures can lead to engine failure. Once, I encountered a coolant temperature warning on the highway and immediately pulled over to check, only to find a leaking hose due to aging. Therefore, regular checks on these systems, such as changing the engine oil or checking the coolant level, can significantly extend the car's lifespan and reduce unexpected incidents.
