Title:
羽根車、該羽根車を備えたポンプ、および該羽根車の製造方法
Document Type and Number:
Japanese Patent JP7292858
Kind Code:
B2
Abstract:
The impeller (1) includes a main plate (3) formed from a metal plate; and vanes (5) each formed from a metal plate. Each of the vanes (5) has a three-dimensional portion (5A) having a surface inclined with respect to a rotation axis (CA) of the impeller (1) and a two-dimensional portion (5B) having a surface parallel to the rotation axis (CA) of the impeller (1), and the two-dimensional portion (5B) is fixed to the main plate (3) by a first weld (10) formed by projection welding.
Inventors:
Hidekura Miwa
Ryoken Yomogita
Ryoken Yomogita
Application Number:
JP2018214638A
Publication Date:
June 19, 2023
Filing Date:
November 15, 2018
Export Citation:
Assignee:
Ebara Corporation
International Classes:
F04D29/22; F04D29/62
Domestic Patent References:
| JP59168297A | ||||
| JP58133498A | ||||
| JP8303389A | ||||
| JP2277997A | ||||
| JP56106098A |
Foreign References:
| CN102152008A |
Attorney, Agent or Firm:
Tetsuya Hirosawa
Isamu Watanabe
Isamu Watanabe