What principle does the engine adopt?

[VonAsher]

Engine working principle is the conversion of internal energy into mechanical energy. Here are the related introductions: 1. The meaning of engine: Engine (Engine) is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. For example, internal combustion engines usually convert chemical energy into mechanical energy. 2. The meaning of external combustion engine: That is to say, its fuel burns outside the engine, and the engine converts the heat energy generated by this combustion into kinetic energy. 3. The meaning of internal combustion engine: Internal combustion engine, also known as reciprocating piston engine, differs from external combustion engines in that its fuel burns inside it. There are many types of internal combustion engines, with common gasoline engines and diesel engines being typical examples.

[Brynlee]

I've always been a car enthusiast. The principle of an engine is essentially about burning fuel to create power. Simply put, a car engine draws in air and mixes it with fuel in the cylinder, compresses the mixture, ignites it to create an explosion, which pushes the piston up and down. This motion is transferred through the connecting rod to rotate the crankshaft, generating mechanical energy that ultimately reaches the wheels to make the car move. Gasoline engines typically use spark plugs for ignition, while diesel engines rely on high compression for self-ignition, making them more efficient. Nowadays, many cars are equipped with turbochargers, which force more air into the engine to create a more intense combustion, significantly boosting power output while reducing fuel consumption. Engines also require a cooling system to prevent overheating and a lubrication system to minimize friction, both of which impact overall performance. Understanding this principle helps drivers pay more attention to gently pressing the accelerator, maintaining a steady speed to reduce wear and extend the engine's lifespan.

[Alexander]

After working in the repair shop for a long time, I've found that most engine issues stem from a lack of solid understanding of basic principles. The engine generates power by burning fuel, specifically through a four-stroke cycle: intake of the air-fuel mixture, compression to a high-pressure point, combustion to push the piston and perform work, and finally exhaust to remove waste. The key is that the ignition by the spark plug or fuel injector must be timely; otherwise, efficiency drops, fuel consumption increases, and black smoke appears. Common faults include clogged air filters leading to insufficient air intake and improper combustion, resulting in reduced power. Older cars are prone to carbon buildup, so it's advisable to occasionally run at high speeds to clean it out. For maintenance, regularly change the oil and filters to prevent cylinder wall overheating, ensure efficient combustion, smooth operation, and extend the service life.

[VanElla]

When I first started learning about cars, I realized that an engine works like a pressure cooker. The mixture of fuel and air is compressed, ignited, and explodes, pushing the piston downward, which is then converted into rotational mechanical energy to drive the wheels. Gasoline engines use spark plugs for a gentler ignition, while diesel engines rely on high-pressure auto-ignition for greater power but with more noise. Electric vehicles operate on a different principle, using batteries to power motors that rotate directly via magnetic force, making them quiet and efficient. Understanding these concepts helped me see why slamming the accelerator increases fuel consumption and accelerates engine wear. Maintaining smooth driving and reasonable acceleration allows for more complete combustion, reducing exhaust emissions, which benefits both the car and the environment.

[AshleyLynn]

I'm fascinated by new technologies. The principle of traditional car engines is to convert heat from burning fossil fuels into mechanical energy to drive the vehicle. Gasoline engines rely on the Otto cycle with spark ignition, while diesel engines use the Diesel cycle with high-pressure auto-ignition for greater efficiency. Modern efficient designs like small-displacement turbocharging increase air intake to boost power output and reduce fuel consumption. However, emission issues lead to exhaust pollution, so catalytic converters are installed for purification. The principle of pure electric vehicle motors is completely different - battery-powered magnetic fields drive rotor rotation without combustion or emissions. Hybrid vehicles combine the advantages of internal combustion engines and electric motors, with the engine generating electricity to power the drive system efficiently and environmentally, representing the future direction.