Hollow multi chambered radial wheel for a charging system

Abstract

This disclosure provides a radial wheel having a rotational axis and a hub portion having an outer hub face defining a gas flow passage, the outer hub face being curved for radial gas flow so that a root-end portion of the outer hub face axially located at a root side is more radially outwardly arranged than a nose-end portion of the outer hub face axially located at a nose side. The radial wheel has further a plurality of blades extending radially outward from the hub portion into the gas flow passage, and an interior structure including a first chamber and a second chamber, a radial structure element being arranged axially between the first chamber and the second chamber and extending from the rotational axis radially outwards across the hub portion, and an axial structure element extending axially from the radial structure element across the first chamber.

Dependencies are inferred from the claim text.