Title:
SELF-PRIMING PUMP
Document Type and Number:
Japanese Patent JP2019190338
Kind Code:
A
Abstract:
To provide a self-priming pump that can shorten self-priming time.SOLUTION: A self-priming pump according to an embodiment comprises: an impeller comprising a first shroud capable of rotating around a predetermined rotating shaft and comprising a first return hole allowing communication between one side and another side in an axial direction of the rotating shaft, and one or more blade members formed on the first shroud; and a guide vane arranged opposite to the one side in the axial direction of the impeller and comprising a second return hole allowing communication between the one side and the other side in the axial direction.SELECTED DRAWING: Figure 3
Inventors:
YAMASHITA EIGO
UMEMOTO SHOHEI
TAKAHASHI TOSHIZO
UMEMOTO SHOHEI
TAKAHASHI TOSHIZO
Application Number:
JP2018082421A
Publication Date:
October 31, 2019
Filing Date:
April 23, 2018
Export Citation:
Assignee:
KAWAMOTO PUMP MFG
International Classes:
F04D9/02
Domestic Patent References:
| JPS5238601U | 1977-03-18 | |||
| JPS4629409B1 | ||||
| JP2007040155A | 2007-02-15 | |||
| JPS4981201U | 1974-07-13 | |||
| JPS428658Y1 |
Foreign References:
| US4637778A | 1987-01-20 |
Attorney, Agent or Firm:
Kurata Masatoshi
Nobuhisa Nogawa
Naoki Kono
Tadashi Inoue
Ukai Ken
Shigeru Iino
Nobuhisa Nogawa
Naoki Kono
Tadashi Inoue
Ukai Ken
Shigeru Iino