Gear pump for non-newtonian fluid
AssigneeShimadzu Corporation
InventorKatsuji Kishimoto
Life of this patent
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Abstract
A pump gear for force-feeding of a non-Newtonian fluid has a pair of gears with intermeshing teeth, each flanked by members such as bearings with inner surfaces opposite to its side surfaces. The gaps that are formed between the side surfaces of the gears and the inner surfaces of the flanking members are tapered such that their width increases radially, making the speed of fluid flow substantially uniform throughout inside the gaps.
Claims12
In a gear pump comprising a pair of gear means with intermeshing teeth and side surfaces for force-feeding a non-Newtonian fluid, each of said gears being flanked by flanking members having inner surfaces opposite said side surfaces to form gaps therebetween the improvement wherein said gaps have width which increases radially such that the kinematic viscosity is substantially uniform throughout said gaps.
In a gear pump for force-feeding a non-Newtonian fluid comprising a pair of gears with intermeshing teeth and side surfaces, each of said gears being flanked by flanking members having inner surfaces opposite said side surfaces to form gaps therebetween, the improvement where said gaps have width which increases radially, said inner surfaces of said flanking members are flat and said side surfaces of said gears are tapered.
In a gear pump for force-feeding a non-Newtonian fluid comprising a pair of gears with intermeshing teeth and side surfaces, each of said gears being flanked by flanking members having inner surfaces opposite said side surfaces to form gaps therebetween, the improvement where said gaps have width which increases radially such that the speed of fluid flow is substantially uniform throughout said gaps.
Dependencies are inferred from the claim text.