| 摘要 |
PROBLEM TO BE SOLVED: To prolong a service life of a heat insulation cover of a supercharger by preventing degradation of the heat insulation cover, in particular the degradation of contact parts with projections such as heads of bolts. SOLUTION: The heat insulation cover 16 installed for heat insulation on a turbine housing 9. The turbine housing is attached to a bearing housing 5 with the bolts 10, bolt caps 25 made of heat insulation material are installed on the bolt heads 10a of the bolts, and the heat insulation cover is constructed to cover the bolt heads with intervention of the bolt caps. COPYRIGHT: (C)2009,JPO&INPIT
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