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TRG-TRC004-EN 7
period one
Compressor Types
notes
Scroll Compressor
Similar to the reciprocating compressor, the scroll compressor works on the
principle of trapping the refrigerant vapor and compressing it by gradually
shrinking the volume of the refrigerant. The scroll compressor uses two scroll
configurations, mated face-to-face, to perform this compression process. The
tips of the scrolls are fitted with seals that, along with a fine layer of oil, prevent
the compressed refrigerant vapor from escaping through the mating surfaces.
The upper scroll, called the stationary scroll, contains a discharge port. The
lower scroll, called the driven scroll, is connected to a motor by a shaft and
bearing assembly. The refrigerant vapor enters through the outer edge of the
scroll assembly and discharges through the port at the center of the stationary
scroll.
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Figure 10