- 专利标题： IMPELLER, IMPELLER MANUFACTURING METHOD, AND ROTATING MACHINE
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申请号： US16487488申请日： 2018-03-26
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公开(公告)号： US20200063562A1公开(公告)日： 2020-02-27
- 发明人: Yuya Konno , Akihiro Nakaniwa
- 申请人： MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
- 申请人地址： JP Tokyo
- 专利权人： MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
- 当前专利权人： MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
- 当前专利权人地址： JP Tokyo
- 优先权： JP2017-066763 20170330
- 国际申请： PCT/JP2018/011965 WO 20180326
- 主分类号： F01D5/04
- IPC分类号： F01D5/04 ; F01D5/14 ; F04D29/054
摘要：
An impeller includes: a disc portion fixed to a rotary shaft rotating around an axis line; a cover portion disposed to face the disc portion; and a plurality of blade portions provided between the disc portion and the cover portion. A compressive residual stress layer is provided on a surface layer of a boundary with the disc portion and on a surface layer of a boundary with the cover portion, at a front end of each of the blade portions.
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