Cryogenic refrigerator

Details Cryogenic refrigerator Cryogenic refrigerator

1991-03-05

1992-05-19

Capossela, Ronald C.

Refrigeration

Gas compression, heat regeneration and expansion, e.g.,...

60520, F25B 900

Patent

active

051136627

ABSTRACT:
A refrigerator comprising a first cylinder and a second cylinder which are coaxially arranged, a first movable coil and a second movable coil which are oppositely arranged in a magnetic flux produced by a magnet, and which can be reciprocated by applying an a.c. current thereto; a first piston which is coupled to the first movable coil, and which can reciprocate in the first cylinder, a second piston which is coupled to the second movable coil, and which can reciprocate in the second cylinder; a compression space which is defined by the first cylinder, the second cylinder, the first piston and the second piston, a cold cylinder, a displacer which divides the inside of the cold cylinder into a cold space and a hot space, and which can slidably reciprocate in the cold cylinder, a regenerator which is arranged in the displacer; a partition wall which is arranged between the first cylinder and the second cylinder to divide the compression space into a first compression space and a second compression space, and communicating means for communicating between the first compression space and the second compression space.

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Walker: "Cryocoolers" New York, pp. 116-122.
Marsden, D.: "System Design Requirements for Infared Detector Cooling" Easton, MD 9/25-26/86.
Stolfi, F. R. et al.: "Parametric Testing of a Linearly Driven Stirling Cycle Refrigerator" Boulder Co. 9-17-84.

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