Patent ID: 9650913
Date: 2017-05-16
CPC Classifications: F01D,F02B,F02M,F05D,Y02T

Claim:
1. A turbocharger comprising: a turbine housing including a gas inlet passage; a turbine wheel that has a plurality of blades and is arranged in the turbine housing about a rotational axis; a bearing housing connected to the turbine housing; a shaft rotatably supported in the bearing housing and connected to the turbine wheel; a shroud arranged in surrounding relation to at least a portion of the turbine wheel, the shroud being arranged in axially spaced relation from the turbine housing; the turbine housing including an inner surface facing a radially inward direction and positioned radially inward of the gas inlet passage; the shroud including an outer surface facing a radially outward direction and positioned radially inward of the gas inlet passage, and the outer surface further facing the inner surface of the turbine housing and extending circumferentially around the rotational axis of the turbine wheel; and a fastening system securing the shroud at a fixed position relative to the bearing housing, and including a fastener positioned radially inward of the outer surface of the shroud and the inner surface of the turbine housing, and the fastener being configured to fracture when a force is exerted on the shroud corresponding to the turbine wheel contacting the shroud when the turbine wheel is rotating.