Radial-flow turbine wheel
AssigneeSamsung Techwin Co., Ltd.
InventorKyung-heui Kim
Life of this patent
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Abstract
A radial-flow turbine wheel is provided. The radial-flow turbine wheel includes a hub having an outer radius gradually increasing from a front end to a rear end, a rear periphery of the hub being radially extended in a plane generally perpendicular to a center axis, and a plurality of turbine blades formed around the hub at constant intervals. A plurality of slots is formed by inward cut at the rear periphery of the hub between the turbine blades of the hub. The turbine wheel restrains creation and propagation of crack due to thermal stress, as well as improving a turbine efficiency.
Claims10
A radial-flow turbine wheel comprising:
- a hub having a generally cylindrical front end, an intermediate portion with an outer radius generally increasing from the front end to a rear end, the rear end of the hub having an enlarged outer periphery;
- a plurality of turbine blades formed around the hub at constant intervals;
- and
- a plurality of slots formed in a generally radial direction at the enlarged outer periphery of the hub between the turbine blades.
Dependencies are inferred from the claim text.