Definition of node. 1a : a pathological swelling or enlargement (as of a rheumatic joint)b : a discrete mass of one kind of tissue enclosed in tissue of a different kind.
Diesel exhaust fluid (DEF) from a separate tank is injected into the exhaust pipeline, where the aqueous urea vaporizes and decomposes to form ammonia and carbon dioxide. Within the SCR catalyst, the NO. x are catalytically reduced by the ammonia (NH. 3) into water ( H2O) and nitrogen (N.
Another type is 409 Stainless Steel with an Aluminum coating. Aluminized 409 SS are used on Diesel Catalytic Converter mufflers due to its excellent high temperature resistance and the corrosion protection of the aluminized coating.