Title:
WATER SUPPLY DEVICE
Document Type and Number:
Japanese Patent JP2019163719
Kind Code:
A
Abstract:
To provide a water supply device that can realize low noise and low vibration, has a compact size, and can use a general-purpose mechanical seal.SOLUTION: A water supply device comprises a pump 2 for pressurizing water, and a motor 3 for driving the pump 2. The pump 2 is a multishaft multistage pump comprising a first rotating shaft 41 and a second rotating shaft 42 arranged in parallel, at least one first impeller 45 fixed to the first rotating shaft 41, and at least one second impeller 46 fixed to the second rotating shaft 42. The first impeller 45 and the second impeller 46 face in opposite directions.SELECTED DRAWING: Figure 4
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Inventors:
OCHIAI AKIHIRO
Application Number:
JP2018051982A
Publication Date:
September 26, 2019
Filing Date:
March 20, 2018
Export Citation:
Assignee:
EBARA CORP
International Classes:
F04D29/66; F04D13/16; F04D29/043; F04D29/22; F16H49/00; H02K7/10; H02K7/14; H02K49/10
Attorney, Agent or Firm:
Tetsuya Hirosawa
Isamu Watanabe
Isamu Watanabe