| 摘要 |
In a centrifugal compressor having a number of fixed vanes 48 on its outlet side, an axially movable sleeve 41 is provided upstream of the vanes. The sleeve can be moved by fluid pressure in a conduit 65 controlled by valve 51. The compressor also has inlet guide vanes 12 which are adjustable by a control system (33, Fig. 1) in a refrigeration system. <IMAGE> |
