Ships – Building – Antifriction surfaces
Patent
1996-09-04
1998-08-04
Basinger, Sherman
Ships
Building
Antifriction surfaces
114289, B63B 138
Patent
active
057878293
ABSTRACT:
A discharge port 4 for discharging air into water is provided on the bottom of a craft behind the rear end of a strip 3 which is installed on the bottom of a small planing watercraft to protrude therefrom and extend in the longitudinal direction of the craft body. A pressure drop in a space behind the rear end of the strip 3 is used to suck in air outside of the craft and guide it through a discharge duct 5 to the discharge port 4, thereby decreasing the pressure resistance and friction resistance generated at the back of the strip 3 rear end. Ram pressure during running of the craft may also be used to take in air from the outside of the craft and guide it through the discharge duct 5 to the discharge port 4, thereby to discharge air from the discharge port 4 into water. The maximum craft speed and the craft acceleration performance is improved by sufficiently decreasing friction resistance at the back of strip rear end.
REFERENCES:
patent: 1007811 (1911-11-01), Somers
patent: 1157423 (1915-10-01), Ryan et al.
patent: 1217828 (1917-02-01), Ruhe
patent: 1784071 (1930-12-01), Norman
patent: 1795596 (1931-03-01), Fleming et al.
patent: 1824313 (1931-09-01), Vogler
patent: 1831697 (1931-11-01), Ziegler
patent: 3316874 (1967-05-01), Canazzi
patent: 4165703 (1979-08-01), Burg
patent: 4231314 (1980-11-01), Peters
patent: 4548586 (1985-10-01), Phillips, Jr.
patent: 4747796 (1988-05-01), Iwai et al.
Basinger Sherman
Kawasaki Jukogyo Kabushiki Kaisha
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