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.
DPF is an abbreviation for Diesel Particulate Filter and on some French manufacturer vehicles it is also known as a FAP or filtre a Ã . Particules the common symbols on the dashboard: Are A dpf is equipped to most modern diesel engines to take out particles from the exhaust gases of diesel. enginesuring general driving the filter fills up and once it reaches a certain level a 30% - 40% the ECU will at will cause the engine to run with a higher exhaust temperature to burn any collected particles and turn them into soot. This is known as the DPF regeneration cycle.