Boge Rotary Screw Air Compressors

How Rotary Screw Air Compressors Work

• Two intermeshing rotors in a housing having an inlet port at one end and a discharge port at the other end
• Most Rotary Screw units are single stage
• Motors run continuously. The inlet port is closed when the desired PSI is achieved and opens again as needed
• Lubricant injected into the compression chamber serves three functions
• Lubricant injected into the compression chamber serves three functions
• Air exiting the rotors passes through a sump/separator. Directional and velocity changes are used to separate most of the liquid.
• The remaining aerosols in the air are separated by a Coalescing Filter, resulting in generally 2-5 parts per million of lubricant carryovers
• Lubricant (carrying much of the heat from air compressing) passes through the cooler before returning to the rotators