Compressor Description
The CVGF compressor consists of three distinct sections: the two-stage centrifugal
compressor, the motor, and the gear box with integral oil sump. See Figure 6.
Compressor
The centrifugal compressor is two-stage with high-strength aluminum alloy fully
shrouded impellers. The impellers are tested at 25 percent over design operating
speed. The rotating assembly is dynamically balanced for vibration of less than 5.1
mm/sec (0.2 ips peak velocities) at nominal operating speeds. The control system af-
fords 20 to 100 percent capacity modulation by electrically actuated guide vanes up-
stream of each impeller.
CVGF-SVX03B-EN
35
General Information
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