Rogers KI Series, Installation, Operation And Maintenance Manual

Page: 14 / 66

5.
1.4 Description of Lubricant Flow and Cooling System
A diagram of the compressor lubricant system is shown in Figure 2 and 3. When the compressor
operates, lubricant from the reservoir of the separator tank is circulated through the lubricant cooler and
lubricant filter and injected into the compressor casing by differential pressure.
In the compressor housing, a lubricant gallery distributes lubricant to the front and rear rotor bearings of
both the male and female rotor and the compression chamber to seal the internal clearances, lubricate
the rotors and absorb most of the heat generated during compression of the air.
The lubricant and compressed air mixture is discharged from the compressor housing into the separator
tank via the discharge line or flanged connection.
1.4.1 Spin-On Filter Element
A spin-on type lubricant filter element is incorporated for ease of maintenance (Figure 4). All lubricant
passes through the lubricant filter before entering the compressor. This filter contains a quality, high-
efficiency filter element.
Figure 4. Typical Spin-on Oil Filter Location.