Why do you need Provent Breather for your common rail diesel?

The service life of diesel engines used in commercial and industrial applications is longer than the service life of diesel engines used in motor cars. Therefore components of diesel engines used in industrial applications are subject to higher requirements with regard to efficiency and lifetime. One of these components is the closed crankcase ventilation system, which is becoming increasingly important. This is exactly what the Mann & Hummel Provent system is designed to achieve. For every piston stroke in a combustion engine there are exhaust gases which flow between the piston rings and sleeves. These gases enter the crankcase. In turbocharged engine applications, air can also make its way into the crankcase through the oil return pipe of the turbocharger. These gases are generally called blow-by gases. The pressure they generate leads to an unacceptable pressure build-up and crankcase ventilation becomes necessary.