Importance

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Abstract

A solid impeller is disclosed having a disk-shaped impeller body having an inlet section extending along the impeller axis of rotation. A plurality of discharge passages extend radially and having inlet and discharge ports. The inlet port has an opening verge face which is oblique to the rotational axis. The solid impeller may also comprise a disk-shaped impeller body having an inlet section extending along the axis of rotation of the impeller and plural discharge passages extending radially. It further has inlet and discharge ports which have a tapered shape so that the section area of the discharge passage is gradually reduced in the outward direction. The thickness of the body is also gradually reduced in the outward direction. The solid impeller may also comprise a cylindrically-shaped center body and plural arms on a peripheral surface of the body. These extend radially in an outward direction from the body and include a discharge passage which extends along a longitudinal direction of the arm.

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First Claim