Title:
ポンプケーシングおよびポンプ装置
Document Type and Number:
Japanese Patent JP7350625
Kind Code:
B2
Abstract:
The present invention relates to a reinforcing structure of a pump casing accommodating an impeller. A pump casing (8) includes: a volute hydro structure (22) having a discharge port (22a); a suction hydro structure (20) having a suction port (20a); and a rib (30) connected to outer surfaces of the volute hydro structure (22) and the suction hydro structure (20). The rib (30) has a curved outer edge (30A) which is curved toward the inside of the rib (30), and the curved outer edge (30A) is smoothly connected to the outermost peripheral surface (20b) of the suction hydro structure (20). A ratio of a radius of curvature (R1) of the curved outer edge (30A) to a radius of curvature (R2) of the outermost peripheral surface (20b) of the suction hydro structure (20) is 20% or more.
Inventors:
Soichiro Ogawa
Youichi Nakamura
Jiang Sego
Kim Dong-min
Youichi Nakamura
Jiang Sego
Kim Dong-min
Application Number:
JP2019200645A
Publication Date:
September 26, 2023
Filing Date:
November 05, 2019
Export Citation:
Assignee:
Ebara Corporation
International Classes:
F04D29/44; F04D13/00
Domestic Patent References:
| JP2013024149A | ||||
| JP2011137422A |
Foreign References:
| EP3211245A1 |
Attorney, Agent or Firm:
Tetsuya Hirosawa
Isamu Watanabe
Goto Manabu
Mitsuhiro Kanazawa
Isamu Watanabe
Goto Manabu
Mitsuhiro Kanazawa
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