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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 .
Conventional nozzles are usually used, but some designs use a fluidic oscillator to disperse the fluid more effectively. In warmer climates, water may also work, but it can freeze in colder climates, damaging the pump. Although automobile antifreeze is chemically similar to windscreen wiper fluid, it should not be used because it can damage ...
Interchangeability of parts was achieved by combining a number of innovations and improvements in machining operations and the invention of several machine tools, such as the slide rest lathe, screw-cutting lathe, turret lathe, milling machine and metal planer. Additional innovations included jigs for guiding the machine tools, fixtures for ...
Crittall Windows Ltd is an English manufacturer of steel-framed windows, today based in Witham, Essex, close to its historic roots in the county. Its products have been used in thousands of buildings across the United Kingdom, including the Houses of Parliament and Tower of London , and are features particularly associated with the Art Deco and ...
Some cores are made from metal fibers – generally the fibers are "woven" into a monolith. Such cores have the advantage that an electrical current can be passed through the monolith to heat the core for regeneration purposes, allowing the filter to regenerate at low exhaust temperatures and/or low exhaust flow rates.
Selective catalytic reduction (SCR) injects a reductant such as ammonia or urea — the latter aqueous, where it is known as diesel exhaust fluid (DEF) — into the exhaust of a diesel engine to convert nitrogen oxides (NO x) into gaseous nitrogen and water.
Quirky Tiling Any over-personalized renovation can hurt the value of a home, especially something like tiling, which requires more effort and money to replace, said Bob Gordon, realtor and blogger ...
Motorcraft fuel filter. Today parts are designed and engineered to fit for installation on Lincoln, Mercury, and Ford vehicles. Some parts, such as Motorcraft's extensive list of oil filter applications, fit a wide variety of makes/models not built by Ford Motor Company.