| 摘要 |
PROBLEM TO BE SOLVED: To reduce manufacturing costs and to improve mountability of an insulation cover of a supercharger by improving thermal insulation performance without increasing the thickness of a thermal insulation material of the insulation cover of the supercharger. SOLUTION: The insulation cover mounted on a housing is made up of an outer surface material 21, the thermal insulation material 22 and an internal surface material 23, and has a cross-sectional structure including at least three layers. An air layer forming member 18 is interposed either between the surface of the housing and the internal surface material, or between the layers to form an air layer 19 therebetween. COPYRIGHT: (C)2009,JPO&INPIT
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