公开(公告)号：EP4202230A1

公开(公告)日：2023-06-28

申请号：EP21874957.0

申请日：2021-08-18

申请人： Mitsubishi Heavy Industries Marine Machinery & Equipment Co., Ltd.

发明人： YAMASHITA, Masato ,  TEZUKA, Taiji ,  YAGI, Kenji ,  IWASA, Yukihiro ,  ITO, Yoshikazu ,  KANAZAWA, Shingo

IPC分类号： F04D29/42 ,  F02B39/00 ,  F04D29/056

摘要： Provided is a supercharger (100) including: an impeller; a scroll casing formed so as to surround the outer circumferential side of the impeller; a bearing casing (20) arranged adjacent to the scroll casing; and coupling part (40) that couples the scroll casing and the bearing casing (20) to each other, the coupling part (40) has a fastening bolt (41) and a fastening bolt (42), a plurality of through holes (21) are formed spaced apart from each other in the circumferential direction (CD) in the bearing casing (20), the scroll casing and the bearing casing (20) are coupled to each other with a plurality of fastening bolt (41) and a plurality of fastening bolt (42) being inserted in the plurality of through hole (21), and the fastening bolt (41) has higher tensile strength than the fastening bolt (42).