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Diesel exhaust fluid (DEF; also known as AUS 32 and 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 .
21 Νοε 2019 · Decomposition Reactor converts DEF into ammonia (NH3) through hydrolysis. Diesel Exhaust Fluid (DEF) Dosing Valve Allows a fine mist of DEF to be sprayed into the exhaust stream of the Decomposition Reactor. Particulate Filter Collects and oxidizes carbon to remove PM from the exhaust. Aftertreatment.
22 Δεκ 2020 · In the modern diesel exhaust aftertreatment system, diesel exhaust fluid (DEF) solution is injected into the exhaust stream in a spray of tiny droplets. The diameter of these droplets range from 100 to 200 µm.
1 Δεκ 2020 · Fresh, 100 percent DEF fluid will measure at 32.5 percent. The DEF fluid can be tested using a refractometer or a suction tube type tool, similar to the tool that is used to check antifreeze strength (Figure 5). DEF fluid has a shelf life and can go bad if not used promptly or stored properly.
The Denoxtronic metering system injects diesel exhaust fluid (DEF), an aqueous urea solution of 32.5 %, into the exhaust gas flow. The urea is converted into ammonia through thermolysis and hydrolysis. In the catalytic converter, the ammonia reduces the nitrogen oxide to water and nitrogen.
An aftertreatment system is a method or device for reducing harmful exhaust emissions from internal-combustion engines. In other words, it is a device that cleans exhaust gases to ensure the engines meet emission regulations.
3 Οκτ 2024 · Diesel exhaust fluid, or DEF, is a key component in lowering pollutants emitted from diesel engines, helping to improve efficiency and reduce emissions.
