Improved pump and method

Details Improved pump and method Improved pump and method

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 3/02 (2006.01) F04D 7/04 (2006.01) F04D 15/00 (2006.01) F04D 29/18 (2006.01) F04D 29/66 (2006.01)

Patent

CA 2591769

A pump for a liquid circulation system in the oil industry and method of sizing a pumping system, said pump having a rotor and a stator each defining a surface, the rotor surface defining an helical thread having a thread height and a thread width wherein the rotor rotates at a rotor speed relative to the stator which results in a viscous drag force opposing rotor speed, said drag force caused by shearing in the liquid.

La présente invention concerne une pompe pour un système de circulation de liquide dans l~industrie pétrolière et un procédé de calibrage d~un système de pompage, ladite pompe ayant un rotor et un stator, chacun définissant une surface, la surface du rotor définissant un filetage hélicoïdal ayant une hauteur de filetage et une largeur de filetage. Le rotor tourne à une vitesse de rotor par rapport au stator, ce qui entraîne une force de traînée de viscosité contraire à la vitesse de rotor, ladite force de traînée étant provoquée par cisaillement dans le liquide.

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