How do DPFs work?

As the gases pass through the filter, the DPF will begin to get clogged with the soot that it has trapped. (Soot is a by-product of incomplete combustion - when the mixture of air and fuel that powers the engine fails to completely ignite). As the temperature of the exhaust gets higher, the residue heats up and turns to ash which is then expelled. This is called 'regeneration'. However, this will only happen when you travel at a speed greater that 40mph or when the engine raises the exhaust temperature artificially every 300 miles.

Some newer models of cars (from 2015 onwards) can use a Selective Catalytic Reduction (SCR) system. The system uses a liquid solution called AdBlue, also known as Diesel Exhaust Fluid (DE), which is made of a combination of water and urea and causes a chemical reaction in the exhaust system. This reaction converts the nitrogen oxides into water and nitrogen, reducing harmful exhaust pipe emissions.

However, this system is not a replacement for a DPF, since cars with AdBlue tanks will always feature a DPF as part of the overall control of emissions.

Yuhuan Sanhe Auto Parts Industry Co., Ltd. is located in Yuhuan, Zhejiang, which is the production base of China's auto and motorcycle parts. It is a window for Yuhuan auto parts base to show at home and abroad.

At the beginning of the establishment of Yuhuan Sanhe Auto Parts Industry Co., Ltd., the core leaders clarified the company's development goals, laid the foundation for the company's rapid development, and made a clear positioning:

Talent orientation: high-tech, high-quality, high-level;

Target positioning: create first-class technology, pursue first-class service, create first-class brand, and become a first-class enterprise;

Business positioning: Careful, attentive, and meticulously build an automotive exhaust system parts design and manufacturing enterprise integrating production, sales and research;

Sanhe main products: automobile three-way catalytic converter (manifold shell, heat shield, cylinder head flange, exhaust system thick-walled parts, exhaust manifold), diesel locomotive exhaust purifier and components, SCR spoiler.