Ships – Building – Freighters
Patent
1991-05-08
1994-09-20
Swinehart, Edwin L.
Ships
Building
Freighters
114 72, B63B 2508
Patent
active
053479432
ABSTRACT:
A tanker which can reliably prevent the outflow of cargo oil from cargo oil tank sections (1, 2, 105, 106) in the ship body in the event of damage or injury to an outer plate (8, 9) of the ship body has a double-sided hull construction (4, 104) arranged on opposite sides of each cargo oil tank in the ship's body and a mid-height deck (3, 118) arranged to divide each cargo oil tank into an upper cargo oil tank (2, 106) and a lower cargo oil tank (1, 105). To reliably prevent the outflow of cargo oil in the event of damage or injury to the ship body due to stranding, collision or similar malfunction, the height (H) of the mid-height deck (1, 118) as measured from the ship bottom (8, 108) is determined so that the pressure of cargo oil exerted on an outer plate of the ship's side wall will not be higher than the pressure of sea water. An access trunk (5, 112) and pressure control devices (6, 7, 113, 114) serve for degassing cargo tank sections.
REFERENCES:
patent: 3745960 (1973-07-01), Devine
patent: 4117796 (1978-10-01), Strain
patent: 4241683 (1980-12-01), Conway
DD-Z: "Seewirthschaft", Nov. 1976, vol. 11, pp. 682-683 Boro-das Universalschiff der Zukunft.
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Patent Abstracts of Japan, vol. 3, No. 80 (M-65), Jul. 11, 1979 of JP-A-54-55988.
Ministry of Transport, "Report on the Tanker Design for Prevention and Mitigation of Oil Polution", Oct. 1990.
N. Aikawa, "Study of alternative Idea to Double Hull Tanker:, Proceeding of the 1990 Forum on Alternative Tank Vessel Design", Jun. 5, 1990.
National Academy of Sciences, "Double Sided Hull with Mid-Height Deck", Jul. 1990.
"Study of Alternative Idea to Double Hull Tanker" API Proceedings of 1990 Forum on Alternative Tank Vessel Design (USA) N. Aikawa, Jun. 1990.
"Double Sided Hull with Mid-Height Deck" National Academy of Sciences (USA) Jul. 1990.
"Report on the Tank Design for Prevention and Mitigation of Oil Pollution" Oct. 1990 Ministry of Transport, Japan.
Fujita Shigetomo
Hasegawa Tsukasa
Hayashi Tomoe
Suzuki Osamu
Mitsubishi Jukogyo Kabushiki Kaisha
Swinehart Edwin L.
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