Method of controlling a turbocompressor

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, F04D 2702

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active

048101630

ABSTRACT:
To prevent a compressor from pumping, a blow-off or reorientation valve branched off its outlet is controlled by a controller as a function of the working point location of the compressor relative to a blow-off line defined in the characteristic field. According to the invention, the differential component of the controller behavior, in particular, the time constant governing the differentiation, is so controlled as a function of the working point location that the differentiating effect is great near the blow-off line and sight at a greater distance from the blow-off line.

REFERENCES:
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patent: 4274260 (1981-06-01), Bukajlo
patent: 4560319 (1985-12-01), Blotenberg
patent: 4562531 (1985-12-01), Enterline et al.
patent: 4586870 (1986-05-01), Hohlweg et al.
patent: 4627788 (1986-12-01), Keyes, IV et al.
patent: 4640665 (1987-02-01), Staroselsky et al.
patent: 4656589 (1987-04-01), Albers et al.

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