| 摘要 |
PROBLEM TO BE SOLVED: To provide a supercharger capable of supplying a cooling liquid to a housing member and cooling the housing member, even when a bearing housing is miniaturized while preventing leakage of the cooling liquid to the outside of the supercharger. SOLUTION: The supercharger 1 includes a rotary shaft 31 supported with a bearing 5, an impeller 41 fixed on the rotary shaft 31 and radially sending outward a gaseous body, a compressor housing 45 arranged by surrounding the impeller 41, and the housing member 46 forming an annular diffuser 43 for surrounding the impeller 41 between the housing member 46 and the compressor housing 45 and arranged between the bearing 5 and the impeller 41, and has a structure wherein a space 46a formed at a bearing 5 side of the diffuser 43 in an axis L direction of the rotary shaft 31 and a supply port 46c for supplying the cooling liquid to an inner wall surface 46b of the space 46a at a diffuser 43 side are arranged on the housing member 46. COPYRIGHT: (C)2012,JPO&INPIT |
