Patent ID: 8069679

Claim:
A cryogenic cooling installation for a superconducting device, comprising: a main tank for a two-phase cryogenic fluid in which a superconducting device to be cooled is immersed; a first outlet manifold connected to said main tank; an auxiliary tank; a second outlet manifold connected to said auxiliary tank; a cryogenic fluid supply line functionally associated with said main tank in order to supply said main tank with cryogenic fluid, and connected to said auxiliary tank; means for controlling a supply of cryogenic fluid, which is placed in said supply line; and a hydrostatic connecting line interposed between respective bottoms of said main and auxiliary tanks, wherein said installation further includes restricting means incorporated into said first outlet manifold, said auxiliary tank being placed relative to said main tank and being dimensioned, so as to be able to accommodate at least most of the cryogenic fluid present in liquid form in said main tank when discharged through the hydrostatic connecting line under the action of pressure of vaporized cryogenic fluid in said main tank, and able to reintroduce the discharged liquid cryogenic fluid through the hydrostatic connecting line from said auxiliary tank into said main tank automatically by gravity without any delay, when the pressure in said main tank decreases.