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TRG-TRC012-EN 7
period one
Components
notes
Continued rotation of the rotors causes the meshing point to travel toward the
discharge end of the compressor, driving the trapped refrigerant vapor ahead of
it. This action progressively reduces the volume of the pockets, compressing
the refrigerant.
Finally, when the pockets of refrigerant reach the discharge port the
compressed vapor is released. As the rotors continue to rotate, the volume of
the pockets is further reduced, squeezing the remaining refrigerant from the
cavities.
Notice that the refrigerant vapor enters and exits the compressor through
ports—no valves are used. Compressors of this design are called ported
compressors.
compressor...
Helical Rotors
meshing point
meshing point
discharge port
discharge port
Figure 13
compressor...
Helical Rotors
meshing point
meshing point
discharge port
discharge port
Figure 14