Stirling free piston cryocoolers

Details Stirling free piston cryocoolers Stirling free piston cryocoolers

1990-02-23

1991-06-11

Capossela, Ronald C.

Refrigeration

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

60517, F25B 900

Patent

active

050222295

ABSTRACT:
The present invention relates to a Stirling free piston cryocooler in which the drive assembly is arranged in an in-line opposed piston arrangement. The displacer piston assembly is nested within the power piston assembly. In one embodiment the thermodynamic assembly is connected to the drive mechanism in a tee arrangement so that the opposed cryocooler pistons share a common expansion space. In another embodiment the thermodynamic assembly is connected to the drive mechanism in a double split tee arrangement with the thermodynamic components remotely located from the expansion and compression spaces and connected thereto by flexible tubes.

REFERENCES:
patent: 3552120 (1971-01-01), Beale
patent: 4387567 (1983-06-01), White
patent: 4458495 (1984-07-01), Beale
patent: 4642988 (1987-02-01), Benson
patent: 4694650 (1987-09-01), Vincent
patent: 4799421 (1989-01-01), Bremer et al.

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