Carrier Corporation

Christopher M Clay

Kevin D Thompson

An inducer wheel or impeller in which the hub may be formed by machining, rather than by molding, and which possesses a generally cylindrical cavity having a flattened section without a tapered inner diameter. Consequently, the hub may be mounted on a rotatable shaft having a corresponding flattened portion of a rotatable shaft with relatively small tolerance between the periphery of the shaft and the interior cavity wall of the hub uniformly along the shaft length. A plastic rotor may be molded onto the hub such that the plastic abuttingly contacts the flattened region of the rotatable shaft and surrounds and covers a relatively large peripheral area of the hub. A method of making such an inducer wheel is disclosed, and the inducer wheel made by such a method is also disclosed.

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Indianapolis, IN, United States of America

Christopher M Clay