Split stirling cycle cryogenic cooler with spring-assisted expan

Details Split stirling cycle cryogenic cooler with spring-assisted expan Split stirling cycle cryogenic cooler with spring-assisted expan

1995-08-10

1997-01-28

Capossela, Ronald C.

Refrigeration

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

62520, F25B 900

Patent

active

055968759

ABSTRACT:
A split Stirling cycle type of cryogenic cooler (10) includes a compressor portion (12) and an expander portion (14). The expander portion (14) is of the "cold finger" type, and is configured to operate in near-resonance with the characteristic cyclic operating rate of the compressor portion (12). As a result, an improved performance of the cooler results both during cool down from ambient temperatures and after cool down. Additionally, a quiet operation of the cooler is provided both during and after cool down to cryogenic temperatures.

REFERENCES:
patent: 4754608 (1988-07-01), Bertsch
patent: 4822390 (1989-04-01), Kazumoto et al.
patent: 4922722 (1990-05-01), Kazumoto et al.

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