Refrigeration – Gas compression – heat regeneration and expansion – e.g.,...
Patent
1995-12-29
1997-12-30
Bennett, Henry A.
Refrigeration
Gas compression, heat regeneration and expansion, e.g.,...
62 511, 277211, F25B 900
Patent
active
057017425
ABSTRACT:
An indium gasket having a configuration which allows the indium to reach its yield point at a relatively low contact pressure. The indium gasket is provided with a multiplicity of openings which are filled by the deforming indium during compression between the cryocooler and the cryocooler interface sleeve of a superconducting magnet system. The creation of openings in the gasket has the effect of decreasing the mechanical interface pressure at which the indium yields. The indium flows at a mechanical interface pressure that does not exceed the structural strength requirements of the cryocooler. The indium flows into the empty spaces formed by the openings, thereby providing the necessary thermal conductance between the cryocooler and the interface sleeve. The result is a relatively small temperature difference between the interface sleeve and the cryocooler during cooling of the superconducting magnets.
REFERENCES:
patent: 5247800 (1993-09-01), Mruzek et al.
patent: 5509243 (1996-04-01), Bettigole et al.
Eckels Phillip William
Woods Daniel C.
Bennett Henry A.
Flaherty Dennis M.
General Electric Company
O'Connor Pamela A.
Pilarski John H.
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