Title:
POWER FEEDER
Document Type and Number:
WIPO Patent Application WO/1990/010330
Kind Code:
A1
Abstract:
A power feeder for supplying electric power to a load such as a motor for driving a submerged pump that pumps liquid from a tank in which is stored a low-temperature liquid such as LNG. The power feeder has the structure in which a ceramic sleeve is fastened to a flange, a conductor is inserted in the ceramic sleeve, the ceramic sleeve and the conductor being airtightly coupled together inside the flange (inside the tank), and the outside (open air side) is sealed with a bellows having the shape of a half-mountain in cross section. The bellows has resiliency and is mounted between the ceramic sleeve and the conductor under the condition where the ceramic sleeve and the conductor undergoes linear expansion at a maximum practical temperature or at a temperature slightly higher than this temperature and where the bellows itself is displaced to its maximum length. The bellows absorbs the reaction of the conductor when it undergoes linear expansion and exerts compression only on the ceramic sleeve side but does not exert tensile stress.
Inventors:
AOKI NOBUO (JP)
AIZAWA IKUO (JP)
YOKOI KEISUKE (JP)
NEGISHI HIDEO (JP)
AIZAWA IKUO (JP)
YOKOI KEISUKE (JP)
NEGISHI HIDEO (JP)
Application Number:
PCT/JP1990/000269
Publication Date:
September 07, 1990
Filing Date:
March 01, 1990
Export Citation:
Assignee:
TOKYO GAS CO LTD (JP)
FURUKAWA ELECTRIC CO LTD (JP)
FURUKAWA ELECTRIC CO LTD (JP)
International Classes:
H01B17/26; H01B17/30; H02G3/22; (IPC1-7): F16L5/00; H01B17/26; H02G3/22; H02G15/34
Foreign References:
| JPS5673121U | 1981-06-16 | |||
| JPS5656111A | 1981-05-18 | |||
| JPS58159615A | 1983-09-22 |
Other References:
See also references of EP 0428731A4
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