Rotary kinetic fluid motors or pumps – Method of operation
Patent
1977-05-25
1979-02-13
Husar, C. J.
Rotary kinetic fluid motors or pumps
Method of operation
415 27, F04D 2700
Patent
active
041393287
ABSTRACT:
A method of operating turbo compressors. To prevent pumping surges, blow-off valves are opened upon reaching a blow-off line extending parallel, with respect to time, to the pumping limit. The difference between the compressor discharge pressure and flow rate and the blow-off line is non-linearly amplified in a manner related to the actual pressure and flow rate so that the amplification gain is increased if the operating point of the compressor shifts into the non-permissible range beyond the blow-off line. Special provisions are made for starting the compressor.
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patent: 2478423 (1949-08-01), Ponomareff et al.
patent: 3276674 (1966-10-01), Hens
patent: 3292845 (1966-12-01), Hens et al.
patent: 3424370 (1969-01-01), Law
patent: 3473727 (1969-10-01), Eastman
patent: 4046490 (1977-09-01), Rutshtein et al.
Albers Rolf
Ewe Kurt
Hillebrand Hans-Peter
Hofmeister Wolfgang
Kuper Klaus D.
Gutehoffnungshitte Sterkrade AG
Husar C. J.
Siemens AG
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