Two-cylinder thick matter pump

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

Patent

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Details

F04B 7/00 (2006.01) F04B 15/02 (2006.01)

Patent

CA 2299391

A two-cylinder thick-matter pump for continuous delivery of thick matter is characterized in that a reversing valve (5) has a diverter housing (8, 8') with at least four openings (.alpha. - d), the diverter (6, 6') disposed in the diverter housing (8, 8') is swiveled with its outlet opening in front of the cylinder openings and has an inlet opening (RE) which is firmly connected with the suction pipe (3), the cavity (H) in the diverter housing (8, 8') being constantly under delivery pressure, and at least one shut-off element (10) being provided for closing the suction pipe (3) and/or the first and/or second openings (.alpha., b) of the diverter housing (8, 8').

Une pompe pour liquides épais à deux cylindres, permettant de refouler en continu un liquide épais, se caractérise en ce qu'une soupape d'inversion (5) comporte un carter à séparateur tubulaire (8, 8') présentant au moins quatre orifices (a-d), en ce que le séparateur tubulaire (6, 6') disposé dans le carter (8, 8') pivote avec son orifice de sortie placé devant les orifices cylindriques, et comporte un orifice d'entrée (RE), lequel est solidarisé avec la conduite d'aspiration (3). L'espace creux (H) dans le carter (8, 8') est constamment soumis à la pression de refoulement et au moins un élément d'arrêt (10) permet de fermer la conduite d'aspiration (3) et/ou le premier et/ou le deuxième orifice (a, b) du carter à séparateur tubulaire (8, 8').

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