What does KNOB stand for?

Nozzle

Nozzle is a part in injector used to spray the fuel into combustion chamber. Loose hemp or jute fiber that's impregnated with tar or pitch and used to caulk large seams or for packing plumbing pipe joints. The part of a heating system that sprays the fuel of fuel-air mixture into the combustion chamber. The projecting aperture at the end of a combustion chamber serving as an outlet for the exhaust gases.

Koninklijke Nederlandse Oudheidkundige Bond

Knights of the Noble Order of Britannia

Kinetic Nullifying Overadjustment Button