Molton metal pump with vaned impeller and flow directing...

Details Molton metal pump with vaned impeller and flow directing... Molton metal pump with vaned impeller and flow directing...

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 7/06 (2006.01) F04D 29/22 (2006.01)

Patent

CA 2097648

A molten metal pump impeller comprised of an imperforate substantially circular base having a surface including a hub adapted to receive a shaft. At least two imperforate vanes being connected to and extending substantially perpendicular from the surface of the circular base and extending radially from the hub toward the periphery of the circular base. Each vane being spaced circumferentially apart and including a first edge, a second edge and a third edge. The first edge being disposed on the surface of the circular base and the second opposed edge defining an inlet end of the impeller over the entire radial dimension. The third edge being the radially outer edge defining an outlet area, which is greater than the inlet area.

Cette invention concerne une roue de pompe à métal fondu comportant une joue pleine sensiblement circulaire à moyeu adapté pour recevoir un arbre d'entraînement. Au moins deux aubes pleines sensiblement perpendiculaires à la joue susmentionnée et solidaires de celle-ci se prolongent radialement entre le moyeu et la périphérie de la joue. Les aubes espacées angulairement comportent une première, une deuxième et une troisième rives, la première reposant sur la face de la joue circulaire et la seconde rive, opposée à la première, définissant une ouïe d'admission faisant toute la longueur du rayon. La troisième, perpendiculaire aux deux premiers et matérialisant le pourtour extérieur de l'aubage, définit une section de refoulement dont la surface est plus grande que celle de l'ouïe d'admission.

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