Title:
PUMP CASING AND PUMP
Document Type and Number:
WIPO Patent Application WO/2023/002733
Kind Code:
A1
Abstract:
The present invention relates to a pump casing and a pump. A pump casing (5) is provided with a cutter (30) having an upper surface (35) that, when an impeller (4) is stored in the pump casing (5), opposes a leading edge (20) of the impeller (4). The upper surface (35) has a region having at least two angles.
Inventors:
ISONO MIHO (JP)
RANADE SHRUNALI (JP)
ISHIWATA TETSUYA (JP)
MAEDA TSUYOSHI (JP)
NOJI TAKAHIRO (JP)
IMAFUKU MASAAKI (JP)
HIRAMOTO KAZUYA (JP)
RANADE SHRUNALI (JP)
ISHIWATA TETSUYA (JP)
MAEDA TSUYOSHI (JP)
NOJI TAKAHIRO (JP)
IMAFUKU MASAAKI (JP)
HIRAMOTO KAZUYA (JP)
Application Number:
PCT/JP2022/018536
Publication Date:
January 26, 2023
Filing Date:
April 22, 2022
Export Citation:
Assignee:
EBARA CORP (JP)
International Classes:
F04D7/04
Foreign References:
| JPS495009U | 1974-01-17 | |||
| JPS54176101U | 1979-12-12 | |||
| JPS5357507A | 1978-05-24 | |||
| JPS5241904A | 1977-03-31 | |||
| JPS5641488A | 1981-04-18 | |||
| JP2019143630A | 2019-08-29 | |||
| JP2019143630A | 2019-08-29 |
Attorney, Agent or Firm:
HIROSAWA, Tetsuya et al. (JP)
Download PDF:
Previous Patent: IRON-BASED POWDER FOR OXYGEN REACTION AGENTS, AND OXYGEN REACTION AGENT USING SAME
Next Patent: FLUID MACHINE
Next Patent: FLUID MACHINE