Title:
ROTARY MACHINE
Document Type and Number:
WIPO Patent Application WO/2017/150254
Kind Code:
A1
Abstract:
Provided is a rotary machine which is provided with a rotating resin impeller, a rotary shaft penetrating the impeller, and a fastening part that is screwed to the rotary shaft, wherein: the rotary shaft is provided with a through-shaft part that faces an inner peripheral surface of the impeller, a leading-end shaft part that is screwed to the fastening part, and a fastening reception part that holds the impeller interposed between itself and the fastening part; the through-shaft part is provided with a non-circular part in which a cross-section orthogonal to the rotational axis has an outline that deviates from a perfect circle line drawn with the rotational axis as center; and the impeller is provided with a coupling part that engages with the non-circular part.
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Inventors:
OZASA TAKUYA (JP)
YUMOTO RYOSUKE (JP)
YUMOTO RYOSUKE (JP)
Application Number:
PCT/JP2017/006184
Publication Date:
September 08, 2017
Filing Date:
February 20, 2017
Export Citation:
Assignee:
IHI CORP (JP)
International Classes:
F04D29/053; F04D29/28
Domestic Patent References:
| WO2015087414A1 | 2015-06-18 |
Foreign References:
| JP2004144095A | 2004-05-20 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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