Refrigeration – Gas compression – heat regeneration and expansion – e.g.,...
Patent
1993-01-28
1994-10-04
Bennet, Henry A.
Refrigeration
Gas compression, heat regeneration and expansion, e.g.,...
60520, 267161, F25B 914
Patent
active
053514904
ABSTRACT:
A cryogenic refrigerator comprises a compressor including a compressor housing within which a cylinder is mounted, and a piston reciprocal within the cylinder, and a cold finger including a low temperature cylinder within which a displacer is reciprocable, and a regenerater mounted within the displacer. A plurality of flat piston suspension springs include a plurality of spiral slits to provide a plurality of spiral arms deflectable as the piston is reciprocated within the compressor cylinder. A plurality of annular inner retainers are secured to the piston and adapted to sandwich the inner peripheral edges of the piston suspension springs. A plurality of annular outer retainers are secured to the compressor housing and include a plurality of projections extending inwardly from the outer ends of the spiral slits to sandwich the outer peripheral edges of the flat piston suspension springs.
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Fujii Nobuo
Katagishi Yoshihiro
Kiyota Hiroyuki
Miyazawa Takeshi
Niitsu Kazuki
Bennet Henry A.
Kilner Christopher
Mitsubishi Denki & Kabushiki Kaisha
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