Title:
PUMP DEVICE
Document Type and Number:
Japanese Patent JP2021188527
Kind Code:
A
Abstract:
To provide a pump device that can keep a shaft seal device within an allowable temperature range irrespective of liquid temperature and liquid quality of handling liquid.SOLUTION: A pump device includes an impeller 3, a rotation shaft 1, a shaft seal device 30 and a second flow channel 60 of which opening 50a forms a first flow channel 90 for causing transportation liquid to flow into the shaft seal device 30 and which keeps transportation liquid within a predetermined temperature range inside the first flow channel 90.SELECTED DRAWING: Figure 1
Inventors:
MURATA AKINORI
FUJISAWA HIROYUKI
FUJISAWA HIROYUKI
Application Number:
JP2020091474A
Publication Date:
December 13, 2021
Filing Date:
May 26, 2020
Export Citation:
Assignee:
EBARA CORP
International Classes:
F04D29/12; F04D29/58; F04D29/42
Attorney, Agent or Firm:
Tetsuya Hirosawa
Isamu Watanabe
Goto Manabu
Kanazawa Mitsuhiro
Isamu Watanabe
Goto Manabu
Kanazawa Mitsuhiro