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Title:
AIR PUMPING-UP DEVICE OF VACUUM SUCTION TYPE
Document Type and Number:
Japanese Patent JPS555409
Kind Code:
A
Abstract:

PURPOSE: To produce a big action of convection in the ambient water area, with a contaminated water in the bottom made going up to expedite a self cleaning action, by means of sucking the atmosphere above the water level to feed the air to within an air storage room by a cavitation generating device installed to the bottom plate of a hollow cylindrical unit.

CONSTITUTION: With a hollow cylindrical unit 3 standing upright in the water, if starting a submerged motor 15 to rotate a rotary blade 20, in a rear part 20a of the rotary blade is produced a low pressure part by the action of cavitation going into a vacuum state. With this low pressure vacuum state linked to the atmosphere through an air suction tube 26 and the like, the air is sucked to within an air storage room 10, and the water in the room is drawn out to outside from the peripheral hole 4 of a multi-hole bottom plate 5. And with the air-water boundary level coming down below a lower end 12b an inner cylinder tube 12, the air in the air storage room 10, by the action of air reverse siphon, rises up passing through a clearance S between the outer cylinder tube 11 and the inner cylinder tube 12, to be released from the cylindrical unit 3, thus a severe action of convection is given to the surrounding water area together with the pumped up water.


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Inventors:
SAITOU KOUSHIROU
Application Number:
JP1978000075435
Publication Date:
January 16, 1980
Filing Date:
June 23, 1978
Export Citation:
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Assignee:
SAITO KOUSHIROU
International Classes:
F04F1/18; (IPC1-7): F04F1/18
Domestic Patent References:
JPS5145310A1976-04-17
JPS5192410A1976-08-13