What is an Automotive Three-Way Catalyst?

[MadelineLee]

Automotive three-way catalytic converter is the most important external purification device installed in the automobile exhaust system. The following is an introduction to the automotive three-way catalyst: Definition: The automotive three-way catalytic converter is the most important external purification device installed in the automobile exhaust system. It converts harmful gases emitted from vehicle exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction reactions. Since this catalytic converter can simultaneously transform three major harmful substances in exhaust gases into harmless substances, it is called a three-way catalyst. Electronic Fuel Injection System in Automotive Three-Way Catalysts: The electronic fuel injection system in automotive engines generally consists of three major components: the fuel injection circuit, sensor group, and electronic control unit. If the injector is installed in the original carburetor position, meaning there is only one gasoline injection point for the entire engine, this is called single-point fuel injection. If injectors are installed on the intake pipe of each cylinder, meaning gasoline is injected from multiple locations with at least one injection point per cylinder, this is called multi-point fuel injection. The closed-loop control of the engine's electronic fuel injection system is a real-time triangular relationship among the oxygen sensor, computer, and fuel quantity control device.

[McLuke]

As a seasoned driver, let me talk about the car's catalytic converter. That time my car failed the emissions test during the annual inspection, and the check revealed the catalytic converter was faulty. This component is located in the middle of the exhaust pipe, resembling a metal box, containing precious metals like platinum and palladium, which effectively purify harmful gases in the exhaust, such as carbon monoxide, nitrogen oxides, and hydrocarbons. If it gets clogged or fails, the engine warning light might come on, with reduced power and increased fuel consumption. During repairs, it can cost hundreds to over a thousand to replace or clean it. I believe it's important to pay attention to regular maintenance, avoid frequent short trips or aggressive driving during cold starts, and allow the catalytic converter to reach its working temperature for efficiency. Remember, keeping the engine healthy can also extend the life of the catalytic converter.

[DeDawson]

Working in an auto repair shop for a long time, catalytic converter issues are commonplace. We scan for trouble codes using a diagnostic tool, with common causes being carbon buildup blockage or catalyst failure, leading to excessive exhaust emissions. Owners often complain about engine shaking or increased fuel consumption. We check exhaust pressure and replace components when necessary. We advise owners to avoid using low-quality fuel, change engine oil and air filters regularly, and keep the combustion system clean. Maintaining the catalytic converter well ensures smooth vehicle operation and reduces costly visits to the repair shop.

[JudeDella]

As an environmental advocate, I can't stress enough how crucial the automotive three-way catalytic converter is for reducing air pollution! It treats over 90% of harmful gases, cleaning up exhaust emissions and improving urban air quality. Since its widespread adoption in the 1970s, global emissions have significantly decreased. Want to contribute to the environment? I urge everyone to maintain proper vehicle upkeep and never neglect catalytic converter issues.