Original AI Prompt
Generate & Play Hailuo AI video：Just talking about gasoline engines, okay? I haven't mentioned diesel at all, because many things can't be filled completely, leading to confusion, forgetting, and causing disappointment. Fundamentally, if you understand gasoline, you can understand diesel in just a moment, so just stay calm, okay. Basic knowledge from A to Z about car structure for beginners Figure 13.1 - Exhaust system on a car Basic knowledge from A to Z about car structure for beginners Figure 13.2 - Main parts of the exhaust system Inviting everyone to watch its operating principle Have you all seen it? Do you need me to explain anything else? I think it's already too simple and easy to understand. Now let's see how it actually works in reality Basic knowledge from A to Z about car structure for beginners Figure 13.3 - Exhaust manifold Basic knowledge from A to Z about car structure for beginners Basic knowledge from A to Z about car structure for beginners Figure 13.4 - Exhaust gas conversion system Basic knowledge from A to Z about car structure for beginners Basic knowledge from A to Z about car structure for beginners Figure 13.5 - Muffler (noise reduction) Note the perfect air-fuel ratio of 14.7/1, which means 14.7 grams of air are needed to completely burn almost 1 gram of gasoline. If too much air enters the engine, then there will be excess air in it containing both N2 and O2 (air always contains about 80% O2 and nearly 20% N2), due to the high temperature, O2 will react with N2 to form toxic NO2. If there is not enough air, there will be excess gasoline, creating black CH gas. That's why if you see black exhaust gases, it means the gasoline hasn't burned completely. Therefore, people install an O2 sensor in the exhaust pipe to see how much excess or deficient O2 there is in the exhaust gases, and the ECU (central control unit) will adjust the air and fuel supply accordingly. The O2 sensor here Basic knowledge from A to Z about car structure for beginners Basic knowledge from A to Z about car structure for beginners
AI-Powered Analysis
The video provides a comprehensive overview of the exhaust system in cars, explaining its components and how it works.
