Method and apparatus for protecting centrifugal compressors from

Rotary kinetic fluid motors or pumps – With control means responsive to non-cyclic condition... – Responsive to moving member developed fluid force – current...

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415 17, 415 29, 415 47, 415 48, 415 49, 415119, F01D 1708

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active

060364327

ABSTRACT:
A fluid passage extends through the compressor casing from a point near the tip of the impeller to a transducer located externally of the compressor casing. Responsive to fluctuations of pressure sensed by the transducer indicative of rotating stall, the compressor is controlled by varying the diffuser or shutting down the compressor, as is appropriate.

REFERENCES:
patent: 5618160 (1997-04-01), Harada et al.
patent: 5683223 (1997-11-01), Harada et al.
patent: 5851103 (1998-12-01), Harada et al.

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