Does Every Car Have a Three-Way Catalytic Converter?
1 Answers
Currently, most household cars are equipped with a three-way catalytic converter because it plays a crucial role in purifying exhaust emissions. Vehicles equipped with this device generally do not exceed emission standards. When high-temperature exhaust gases pass through the purification device, the catalyst in the three-way catalytic converter enhances the activity of CO, HC, and NOx gases, promoting specific oxidation-reduction chemical reactions. CO oxidizes at high temperatures into colorless, non-toxic carbon dioxide gas; HC compounds oxidize into water and carbon dioxide; and NOx reduces into nitrogen and oxygen. These three harmful gases are transformed into harmless substances, thereby purifying the vehicle's exhaust emissions. If the three-way catalytic converter becomes clogged, restricted exhaust flow during high-pressure exhaust conditions can reduce air intake, leading to decreased engine power and subsequently weaker acceleration. To achieve the same power output, drivers may need to press the accelerator harder, resulting in increased fuel consumption. Typically, the three-way catalytic converter should be cleaned every 30,000 kilometers. Additionally, it should be cleaned whenever the fuel injectors, throttle body, or intake manifold undergo maintenance.
