STRUCTURE OF IMPLELLER AND CASING FOR PUMP IN TABLEWARE WASHING MACHINE

摘要

In a circular pump of a dish washer, an impeller and casing structure having a cone-type impelled whose apex point marked of &thgr; is perpendicular; an impeller where a blade of the impeller is formed in the form of a curved line to have a slope for satisfying the expression γ = γoen&thgr; to the apex angle; and an impeller casing for forming the impeller for the curved line to have the same slope as that of the blade.