A device which uses the energy of falling water to force a small portion of the water to a height greater than the source. A water pump in which the downward flow of naturally running water is intermittently halted by a valve so that the flow is forced upward through an open pipe into a reservoir.
HYDRAULIC RAM
Meaning of HYDRAULIC RAM in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012