F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
F04C19/005—Details concerning the admission or discharge
F04C19/008—Port members in the form of conical or cylindrical pieces situated in the centre of the impeller
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Engineering & Computer Science
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Mechanical Engineering
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General Engineering & Computer Science
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Applications Or Details Of Rotary Compressors
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