Title:
PUMP DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/050269
Kind Code:
A1
Abstract:
This pump device comprises a rotary shaft, a hub part attached to the rotary shaft, a centrifugal pump blade attached to the circumferential surface of the hub part, an annular disk part attached to the tip of the centrifugal pump blade, and an axial flow turbine blade attached to an outer circumferential surface of the annular disk part, wherein: on the inner circumferential side of the annular disk part, a liquid flow passage is formed in which a liquid, flowing in the axial direction of the rotary shaft from one side toward the other side, flows into the centrifugal pump blade; and on the outer circumferential side of the annular disk part, a gas flow passage is formed in which a gas, flowing from the other side toward the one side, passes the axial flow turbine blade.
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Inventors:
TAKATA RYO (JP)
NAKAMURA MASAHARU (JP)
WATANABE MASAMITSU (JP)
HIRAKI HIROMICHI (JP)
NAKAMURA MASAHARU (JP)
WATANABE MASAMITSU (JP)
HIRAKI HIROMICHI (JP)
Application Number:
PCT/JP2021/031916
Publication Date:
March 10, 2022
Filing Date:
August 31, 2021
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
F04D29/24; F01D15/08; F04D13/04
Foreign References:
| JP2020509296A | 2020-03-26 | |||
| JP2020148970A | 2020-09-17 | |||
| JP2007205353A | 2007-08-16 | |||
| JP4115902B2 | 2008-07-09 |
Other References:
See also references of EP 4170181A4
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P.C. (JP)
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