To provide a bubble lubricating vessel capable of suppressing the fuel consumption of an air compressor for supplying bubbles to the bottom of the vessel and suppressing the interference of bubbles with a propeller.
This bubble lubricating vessel includes a hull having a flat bottom at the longitudinal center of the vessel, keel boards 2 disposed on both sides of the flat bottom, a bubble discharge port 3 formed at the bottom of the bow of the vessel, a bubble recovery port 4 formed at the stern side end of the flat bottom, an air passage 5 extended between the bubble recovery port 4 and the bubble discharge port 3, a first air pressurizing means 6 disposed in the middle of the air passage 5 to pressurize air in the air passage 5, and a second air pressurizing means 8 for supplying pressurized air to a portion from the bubble recovery port 3 to the first air pressurizing means 6 in the air passage 5. A relation among air pressure P1 in a portion from the first air pressurizing means 6 to the bubble discharge port 3 in the air passage 5, air pressure P2 in a portion from the bubble recovery port 4 to the first air pressurizing means 6 in the air passage 5, a draft water head value P3 at the bubble discharge port 3, a draft water head value P4 at the bubble recovery port 4 and atmospheric pressure Pa is set to P1>P3>P2>Pa and P4>P2.
TAMASHIMA MASAHIRO
MIZUNO KATSUHIKO
RYUTAI TECHNO KK
NIPPON YUSEN KK
MTI KK
| JPS4835557B1 | 1973-10-29 | |||
| JP2008114710A | 2008-05-22 | |||
| JP2001524421A | 2001-12-04 | |||
| JPS5078092A | 1975-06-25 |