positive displacement pump

English

Noun

positive displacement pump (plural positive displacement pumps)

1. A pump which operates by periodically changing the volume of a cavity

Hypernyms

• pump
• turbomachine

Hyponyms

• Archimedes' screw
• flexible-tube squegee
• peristaltic pump
• plunger
• three-lobe pump

Coordinate terms

• rotodynamic pump