PUMP Russian patent published in 1997 - IPC

FIELD: mechanical engineering: pumps and compressors. SUBSTANCE: pump has two reservoirs, each partially filled with liquid and partially with gas. Chamber is provided which can be placed in communication periodically and in turn with gas-filled space of first reservoir and with liquid-filled space of second reservoir. External gas supply source is connected to gas-filled space of first reservoir. Pump is connected to water-filled space of first reservoir. Pump output is connected to second reservoir. Gas consumer is connected to gas-filled space of second reservoir. EFFECT: enlarged operating capabilities. 2 cl, 5 dwg