Gas pressurized liquid pump with intermediate chamber

F - Mech Eng,Light,Heat,Weapons – 04 – F

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F04F 1/02 (2006.01) F04F 1/12 (2006.01)

Patent

CA 2371571

The multi-chamber liquid pump (10) of the present invention includes an input chamber (14), an intermediate chamber (22) and a liquid output chamber (18). Pressurized gas (60) provides the motive force for outputting liquid from the pump (10), such that liquid is output at a constant flow rate during pump operation. Liquid flows into the input chamber (14), through one or more valves (52) into the intermediate chamber (22), and through one or more subsequent valves (78) to the output chamber (18) while liquid is constantly output from the output chamber (18). The system controller provides control signals to the valves to facilitate the pump's continual operation.

L'invention concerne une pompe à liquides à chambres multiples comprenant une chambre d'entrée, une chambre intermédiaire et une chambre de sortie du liquide. Du gaz sous pression constitue la force motrice servant à l'expulsion du liquide de la pompe, de manière à avoir un débit constant du liquide en sortie au cours de l'utilisation de la pompe. Le liquide s'écoule dans la chambre d'entrée, traverse au moins une soupape pour arriver à la chambre intermédiaire, puis au moins une autre soupape pour parvenir à la chambre de sortie, pendant que du liquide est constamment expulsé de ladite chambre de sortie. L'unité de commande du système fournit aux soupapes des signaux de commande en vue de faciliter le fonctionnement continu de la pompe.

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