Patent ID: 8857180

Claim:
A turbocharger for an internal combustion engine, the turbocharger comprising: a bearing housing having a bearing bore; a semi-floating bearing disposed within the bore; a shaft having a first end and a second end, the shaft being supported by the bearing for rotation about an axis within the bore; a turbine wheel fixed to the shaft proximate to the first end and configured to be rotated about the axis by post-combustion gasses emitted by the engine; a compressor wheel fixed to the shaft proximate to the second end and configured to pressurize an airflow being received from the ambient for delivery to the engine; and a plate secured within the bearing housing and configured to prevent rotation of the bearing about the axis; wherein: the bearing housing includes a feature and the plate includes a tab configured to engage the feature and thereby prevent the rotation of the plate about the axis; the plate defines an inner opening configured to permit the shaft to pass therethrough; and the inner opening includes a slot and the bearing includes a key configured to engage the slot and thereby prevent the rotation of the bearing about the axis.