PUMP Russian patent published in 1997 - IPC

FIELD: pump engineering. SUBSTANCE: pump has two tanks each of which is partially full of liquid and gas. There is also a slide with a chamber formed by the outer side of the slide and inner side of the housing wherein the slide is received. The slide can reciprocates and be provisionally in communication with that portion of the first tank which is filled with liquid. The portion of the first tank filled with gas is connected to a pipe line whose other end is connected with a gas source. The gas portion of the second tank is connected with a pipe line whose other end is connected to a gas consumer. EFFECT: enhanced efficiency. 2 cl, 5 dwg