Figure 11-4. - W-type, two-stage, three-cylinder arrangement.
Figure 11-5. - Differential piston with a two-stage, vertical arrangement.
Figure 11-7. - Twin-lobe rotary compressor.
You should always use maintenance and service literature provided by manufacturers when you are working with rotary compressors. Maintenance information is given in Operation and Maintenance of Compressed Air Plants, NAVFAC MO-206.
Figure 11-6. - Compression cycle of rotary compressor.
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