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Diesel exhaust fluid (DEF; also known as AUS 32 and sometimes marketed as AdBlue[3]) is a liquid used to reduce the amount of air pollution created by a diesel engine. Specifically, DEF is an aqueous urea solution made with 32.5% urea and 67.5% deionized water.
3 Οκτ 2024 · What Is DEF? Diesel exhaust fluid is an automotive-grade combination of urea and deionized water, which you inject into the exhaust stream of a diesel engine to help turn NOx, or oxides of...
DEF is not a fuel additive; instead, it is a precise mixture of urea and deionized water that is sprayed into the exhaust gas before entering the diesel engine’s SCR catalyst. Through a chemical reaction, the DEF helps break down the nitrogen oxides (NOx) generated by the exhaust system into environment-friendly nitrogen, water vapor, and ...
20 Μαρ 2023 · Diesel exhaust fluid plays an important role in the emissions system on your diesel engine, but to better understand exactly what it does and why we need it, we need to provide a little context. When diesel fuel is burned inside your engine it creates heat and horsepower.
9 Σεπ 2023 · What is Diesel Exhaust Fluid. Diesel Exhaust Fluid is a crucial component used in modern diesel engines equipped with Selective Catalytic Reduction (SCR) systems to reduce harmful nitrogen oxide (NOx) emissions. Here’s a breakdown of its properties, composition, and importance:
2 Αυγ 2024 · Diesel Exhaust Fluid, or DEF, is comprised of de-ionized water and urea, a non-hazardous solution. Your favorite diesel vehicle releases NOx emissions into the air, and DEF works to reduce emissions and prevent harm. It does this by turning the emissions into innocuous water, oxygen, and nitrogen.
18 Οκτ 2022 · Diesel engines lean burn during combustion, causing more NOx emissions. The particulates are handled by the DPF, but the management of NOx is handled by DEF. This is called selective catalytic...
