Title:
FLUID MACHINE
Document Type and Number:
WIPO Patent Application WO/2022/070613
Kind Code:
A1
Abstract:
Before a first impeller (51) oscillates and strikes against a first shroud surface (53a) and a second impeller (52) oscillates and strikes against a second shroud surface (53b), an outer circumferential surface of a rotational shaft (40) strikes against a strike surface (90a) of a radial protrusion (90). Thus, the first impeller (51) is prevented from oscillating and striking against the first shroud surface (53a), and the second impeller (52) is prevented from oscillating and striking against the second shroud surface (53b). Consequently, there is no need to ensure a first tip clearance (61) and a second tip clearance (62) to a certain extent such that the first impeller (51) will not oscillate and strike against the first shroud surface (53a) and the second impeller (52) will not oscillate and strike against the second shroud surface (53b).
Inventors:
OKANO YUKI (JP)
SAITO HIROSHI (JP)
ENDO YUKI (JP)
SAITO HIROSHI (JP)
ENDO YUKI (JP)
Application Number:
PCT/JP2021/029328
Publication Date:
April 07, 2022
Filing Date:
August 06, 2021
Export Citation:
Assignee:
TOYOTA JIDOSHOKKI KK (JP)
International Classes:
F04D29/42
Foreign References:
| US20140199006A1 | 2014-07-17 | |||
| JP2014109263A | 2014-06-12 |
Attorney, Agent or Firm:
SATO Tsutomu et al. (JP)
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