What is a Vehicle Exhaust Treatment Device?
1 Answers
A vehicle exhaust treatment device is an apparatus that purifies exhaust gases through catalytic reactions to mitigate environmental pollution. Additional details are as follows: 1. Classification: Vehicle exhaust treatment devices are primarily divided into two major categories, namely pre-exhaust treatment technology and post-exhaust treatment technology. 2. Pre-exhaust Treatment Technology: Common pre-exhaust treatment technologies include hydrogen-oxygen emission reduction technology and water-assisted motive technology. The main principle involves using onboard electrical energy to electrolyze water into hydrogen and oxygen, which are then injected into the engine's intake manifold to burn simultaneously with the air-fuel mixture, accelerating the combustion speed of diesel and ensuring complete combustion. Since diesel burns more thoroughly, it reduces carbon monoxide and hydrocarbon emissions, minimizing the generation of carbon particulates at the source and fundamentally addressing the issue of black smoke emissions. Unburned fuel is also converted back into kinetic energy for the vehicle, directly lowering fuel costs and achieving energy-saving effects. 3. Post-exhaust Treatment Technology: The most common post-exhaust treatment technology is the particulate matter capture device, known as DPF (Diesel Particulate Filter). It is typically installed in the vehicle's exhaust system and operates by physically collecting unburned carbon particles, similar to how a mask filters air. However, to some extent, it may reduce vehicle power and increase fuel consumption.
