H - Electricity – 01 – R
Patent
H - Electricity
01
R
339/5
H01R 13/523 (2006.01)
Patent
CA 1237492
ABSTRACT In electrical subsea connectors, especially galvanic connectors and inductive connectors, arranged for mating and unmating under water and comprising a plug shaped member or male part (2') and a sleeve-shaped member or female part (1'), which is designed with a cavity (4') for reception of the corresponding insertion member (16) of the male part during mating giving rise to the formation of one or more gaps between the male- and female part, one is aiming at preventing penetration of seawater into the connector, respectively into the cavity of the female part (when unmated), and in inductive subsea connectors to increase the magnetic conductivity in the gap between male- and female part, which is achieved by connecting the female part (1') to a reservoir (7') with an oil-based ferromagnetic fluid (6) under pressure, which reservoir is communicating (12') with the cavity (4') of the female part (1') in such a way as to force the ferromagnetic fluid into said cavity when unmated and into said gap or gaps between the male- and female parts when mated, in that the assembly (14') of permanent magnet enclosing the cavity (4') of the female part prevents the ferromagnetic fluid, which is maintained at a pressure exceeding the pressure of the surrounding seawater, to leak out into the seawater.
496246
Den Norske Stats Oljeselskap A.s.
Macrae & Co.
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