Section II - Description
6 Quincy Compressor-QSI
®
• General Description
• The Compression Cycle
• Air Flow
• Cooling System
• Capacity Control System
• Electrical System
• Indicators
• Gauges
General Description
QSI compressors are single stage, positive displacement,
-
tor has four lobes that mesh with a female rotor consisting
Figure 2-1. Compression Cycle
A) INTAKE B) COMPRESSION C) DISCHARGE
INLET PORT
CYLINDER
MALE
ROTOR
FEMALE ROTOR DISCHARGE PORT
The Compression Cycle
The compression cycle of a rotary compressor is a
continuous process from intake to discharge with no
reciprocating mechanisms starting and stopping as found
of two rotors in constant mesh, housed in a cylinder with
As the rotors rotate, (male-clockwise as viewed from the
power input end) air is drawn into the cylinder through
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