Tuned split-Stirling cryorefrigerator

Details Tuned split-Stirling cryorefrigerator Tuned split-Stirling cryorefrigerator

1994-05-10

1995-12-26

Capossela, Ronald C.

Refrigeration

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

60520, F25B 900

Patent

active

054776864

ABSTRACT:
A split-Stirling cryorefrigerator including a cylinder containing a movable displacer containing regenerator material and having an attached movable rod with a free end located in a housing enclosing a gas-spring chamber containing a gas. The cylinder has an orifice near its warm end which is in fluid communication with a gas source having a cyclic (typically sinusoidal) pressure. The movable rod slidably and generally sealably engages the housing and the warm end of the cylinder. The cryorefrigerator also includes a mechanism for adjusting the void volume of the gas-spring chamber, such adjustment allowing for increased cooling capacity of the cryorefrigerator when the amplitude of the cyclic pressure of the gas source is increased.

REFERENCES:
patent: 3906739 (1975-09-01), Raimondi
"Dynamic Modelling of Stirling Cryorefrigerator", C. Minas, Cryogenics, 1994, vol. 34, No. 1, pp. 37-41.
Cryocoolers Part 1: Fundamentals, Graham Walker, The University of Clagary, Calgary, Alberta, Canada, 1983 Plenum Press, New York and London, pp. 119, 121,169-171.
Cryogenic Technology, John Wiley & Sons, Inc., New York and London, 1963, pp. 18-21.

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