Trane TRG-TRC004-EN manual Phvklqjsrlqw

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Compressor Types

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	Figure 18

Viewing the compressor from the opposite side shows that continued rotation of the meshed rotor lobes drives the trapped refrigerant vapor (to the right), toward the discharge end of the compressor, ahead of the meshing point. 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 and the rotors force the remaining refrigerant from the pockets.

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Figure 19

In this example helical-rotary compressor, refrigerant vapor is drawn into the compressor through the suction opening and passes through the motor, cooling it. The refrigerant vapor is drawn into the compressor rotors where it is compressed and discharged out of the compressor.

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