Operating Principles
These systems use a flooded-lobe, rotary screw compressor. The
oil-filled compressor housing contains two rotors.
Compression occurs when inlet air (at normal atmospheric pressure)
enters a chamber where it is trapped between the rotating rotor
lobes.
A lubricated pitch line provides sealing. As the lobes mesh, they
reduce the volume of the air, compressing it to the desired pressure.
Oil Separation and Cooling
The system has a two-stage air/oil separator. The first separation
stage consists of baffles, which perform mechanical separation. The
second stage uses an integral serviceable coalescing element.
A liquid-to-liquid cooler connected to the engine cooling system cools
the oil. This maintains the oil temperature in an optimal performance
range that increases system durability and reduces the temperature
of the compressed air.
Filtration
The rotary screw compressor is designed and machined to exacting
tolerances. Foreign particles entering the system will drastically
damage or shorten the life expectancy of the compressor and will
result in damage to bearings, gears, rotors and the inside of the
housing.
The system is equipped with a replaceable paper element air inlet
filter, spin on cartridge type high pressure capable oil filter and a
scavenge screen filter.
These system filters enhance performance and extend component
life by reducing damage from dust and other debris. Proper filter
maintenance is the key to long compressor life.
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