Every engine has some sort of crankcase breathing system. The internal combustion process creates pressure, some of which makes its way past the piston rings-along with fuel vapors-and into the rest ...

Rigorous SAE/TMC Type II fuel economy testing by Auburn University showed a 3.5% improvement in fuel economy for a Class 8 tractor fitted with a new aftermarket closed crankcase ventilation (CCV) ...

Crankcase blow-by is hot gases that sneak past the piston rings. As of 2007, the U.S. Environmental Protection Agency limits nonmethane hydrocarbons to 0.14 grams per bhp-hr. Blow-by gases are rich in ...

Spiracle CFS systems reduce blow-by emissions generated from an open crankcase vent and prevent fouling of turbochargers or intercoolers in CCV systems. Also reduce in-cab fumes and draft tube “road ...

Positive Crankcase Ventilation—three dirty words, but do they really need to be perceived that way? In general, the PCV system has two main functions: vapor relief and liquid separation. PCV systems ...