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F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04D—NON-POSITIVE-DISPLACEMENT PUMPS
F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
F04D27/02—Surge control
F04D27/0246—Surge control by varying geometry within the pumps, e.g. by adjusting vanes
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FR1014955D1950-03-221950-03-22
Method of regulating compressors, in particular for air conditioning and devices by allowing the implementation
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