Title:
WATER INTAKE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/038049
Kind Code:
A1
Abstract:
Provided is a water intake device that reduces the installation cost of a water intake pipe and avoids the risk of pump stoppage. The water intake device 1 comprises a water intake pipe 20 extending from near a water surface to a water intake depth, a submerged pump 30 connected to a lower end of the water intake pipe 20, a gas passage part 40 that supplies gas to the submerged pump 30, and a power supply cable 41 that supplies power to the submerged pump 30. The water intake pipe 20 has flexibility. The gas passage part 40 supplies, to a gas-filled chamber 33 housing a part or the whole of a motor 32, a gas for adjusting the pressure difference between the gas-filled chamber and a pump chamber 35 that feeds water to the water intake pipe 20. The gas passage part 40 and the power supply cable 41 are inserted into the water intake pipe 20.
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| JP3822069 | WATER RESOURCES RESERVOIR |
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Inventors:
SAKURAZAWA SHUNJI (JP)
JITSUHARA SADAYUKI (JP)
JITSUHARA SADAYUKI (JP)
Application Number:
PCT/JP2022/033513
Publication Date:
March 16, 2023
Filing Date:
September 07, 2022
Export Citation:
Assignee:
XENESYS INC (JP)
International Classes:
E03B3/04; F04D13/08
Foreign References:
| JP2017044114A | 2017-03-02 | |||
| JPS6069298A | 1985-04-19 | |||
| JPH0223298A | 1990-01-25 | |||
| JPH084657A | 1996-01-09 | |||
| JPS5353603U | 1978-05-09 | |||
| JPH116492A | 1999-01-12 | |||
| US20090272129A1 | 2009-11-05 |
Attorney, Agent or Firm:
HIRAI Yasuo (JP)
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